Clinical Characteristics of Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome in North Indian Population of HIV/AIDS Patients Receiving HAART
Identifieur interne : 000E92 ( Pmc/Corpus ); précédent : 000E91; suivant : 000E93Clinical Characteristics of Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome in North Indian Population of HIV/AIDS Patients Receiving HAART
Auteurs : Suman Karmakar ; Surendra K. Sharma ; Richa Vashishtha ; Abhishek Sharma ; Sanjay Ranjan ; Deepak Gupta ; Vishnubhatla Sreenivas ; Sanjeev Sinha ; Ashutosh Biswas ; Vinay GulatiSource :
- Clinical and Developmental Immunology [ 1740-2522 ] ; 2010.
Abstract
Url:
DOI: 10.1155/2011/239021
PubMed: 21197457
PubMed Central: 3003953
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Clinical Characteristics of Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome in North Indian Population of HIV/AIDS Patients Receiving HAART</title><author><name sortKey="Karmakar, Suman" sort="Karmakar, Suman" uniqKey="Karmakar S" first="Suman" last="Karmakar">Suman Karmakar</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sharma, Surendra K" sort="Sharma, Surendra K" uniqKey="Sharma S" first="Surendra K." last="Sharma">Surendra K. Sharma</name><affiliation><nlm:aff>NONE</nlm:aff></affiliation><affiliation><nlm:aff>NONE</nlm:aff></affiliation></author><author><name sortKey="Vashishtha, Richa" sort="Vashishtha, Richa" uniqKey="Vashishtha R" first="Richa" last="Vashishtha">Richa Vashishtha</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sharma, Abhishek" sort="Sharma, Abhishek" uniqKey="Sharma A" first="Abhishek" last="Sharma">Abhishek Sharma</name><affiliation><nlm:aff id="I3">University of Medicine, Pleven, Bulgaria</nlm:aff></affiliation></author><author><name sortKey="Ranjan, Sanjay" sort="Ranjan, Sanjay" uniqKey="Ranjan S" first="Sanjay" last="Ranjan">Sanjay Ranjan</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Gupta, Deepak" sort="Gupta, Deepak" uniqKey="Gupta D" first="Deepak" last="Gupta">Deepak Gupta</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sreenivas, Vishnubhatla" sort="Sreenivas, Vishnubhatla" uniqKey="Sreenivas V" first="Vishnubhatla" last="Sreenivas">Vishnubhatla Sreenivas</name><affiliation><nlm:aff id="I4">Department of Biostatistics, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sinha, Sanjeev" sort="Sinha, Sanjeev" uniqKey="Sinha S" first="Sanjeev" last="Sinha">Sanjeev Sinha</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Biswas, Ashutosh" sort="Biswas, Ashutosh" uniqKey="Biswas A" first="Ashutosh" last="Biswas">Ashutosh Biswas</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Gulati, Vinay" sort="Gulati, Vinay" uniqKey="Gulati V" first="Vinay" last="Gulati">Vinay Gulati</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">21197457</idno><idno type="pmc">3003953</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3003953</idno><idno type="RBID">PMC:3003953</idno><idno type="doi">10.1155/2011/239021</idno><date when="2010">2010</date><idno type="wicri:Area/Pmc/Corpus">000E92</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000E92</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Clinical Characteristics of Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome in North Indian Population of HIV/AIDS Patients Receiving HAART</title><author><name sortKey="Karmakar, Suman" sort="Karmakar, Suman" uniqKey="Karmakar S" first="Suman" last="Karmakar">Suman Karmakar</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sharma, Surendra K" sort="Sharma, Surendra K" uniqKey="Sharma S" first="Surendra K." last="Sharma">Surendra K. Sharma</name><affiliation><nlm:aff>NONE</nlm:aff></affiliation><affiliation><nlm:aff>NONE</nlm:aff></affiliation></author><author><name sortKey="Vashishtha, Richa" sort="Vashishtha, Richa" uniqKey="Vashishtha R" first="Richa" last="Vashishtha">Richa Vashishtha</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sharma, Abhishek" sort="Sharma, Abhishek" uniqKey="Sharma A" first="Abhishek" last="Sharma">Abhishek Sharma</name><affiliation><nlm:aff id="I3">University of Medicine, Pleven, Bulgaria</nlm:aff></affiliation></author><author><name sortKey="Ranjan, Sanjay" sort="Ranjan, Sanjay" uniqKey="Ranjan S" first="Sanjay" last="Ranjan">Sanjay Ranjan</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Gupta, Deepak" sort="Gupta, Deepak" uniqKey="Gupta D" first="Deepak" last="Gupta">Deepak Gupta</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sreenivas, Vishnubhatla" sort="Sreenivas, Vishnubhatla" uniqKey="Sreenivas V" first="Vishnubhatla" last="Sreenivas">Vishnubhatla Sreenivas</name><affiliation><nlm:aff id="I4">Department of Biostatistics, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Sinha, Sanjeev" sort="Sinha, Sanjeev" uniqKey="Sinha S" first="Sanjeev" last="Sinha">Sanjeev Sinha</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Biswas, Ashutosh" sort="Biswas, Ashutosh" uniqKey="Biswas A" first="Ashutosh" last="Biswas">Ashutosh Biswas</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author><author><name sortKey="Gulati, Vinay" sort="Gulati, Vinay" uniqKey="Gulati V" first="Vinay" last="Gulati">Vinay Gulati</name><affiliation><nlm:aff id="I1">Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</nlm:aff></affiliation></author></analytic><series><title level="j">Clinical and Developmental Immunology</title><idno type="ISSN">1740-2522</idno><idno type="eISSN">1740-2530</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><italic>Background & Objective</italic>. IRIS is an important complication that occurs during management of HIV-TB coinfection and it poses difficulty in diagnosis. Previous studies have reported variable incidence of IRIS. The present study was undertaken to describe the pattern of TB-associated IRIS using recently proposed consensus case-definitions for TB-IRIS for its use in resource-limited settings. <italic>Methods</italic>. A prospective analysis of ART-naïve adults started on HAART from November, 2008 to May, 2010 was done in a tertiary care hospital in north India. A total 224 patients divided into two groups, one with HIV-TB and the other with HIV alone, were followedup for a minimum period of 3 months. The diagnosis of TB was categorised as ‘‘definitive” and ‘‘probable”. <italic>Results</italic>. Out of a total of 224 patients, 203 completed followup. Paradoxical TB-IRIS occurred in 5 of 123 (4%) HIV-TB patients while 6 of 80 (7.5%) HIV patients developed ART-associated TB. A reduction in plasma viral load was significantly (<italic>P</italic> = .016) associated with paradoxical TB-IRIS. No identifiable risk factors were associated with the development of ART-associated TB. <italic>Conclusion</italic>. The consensus case-definitions are useful tools in the diagnosis of TB-associated IRIS. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Clin Dev Immunol</journal-id><journal-id journal-id-type="iso-abbrev">Clin. Dev. Immunol</journal-id><journal-id journal-id-type="publisher-id">CDI</journal-id><journal-title-group><journal-title>Clinical and Developmental Immunology</journal-title></journal-title-group><issn pub-type="ppub">1740-2522</issn><issn pub-type="epub">1740-2530</issn><publisher><publisher-name>Hindawi Publishing Corporation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">21197457</article-id><article-id pub-id-type="pmc">3003953</article-id><article-id pub-id-type="doi">10.1155/2011/239021</article-id><article-categories><subj-group subj-group-type="heading"><subject>Clinical Study</subject></subj-group></article-categories><title-group><article-title>Clinical Characteristics of Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome in North Indian Population of HIV/AIDS Patients Receiving HAART</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Karmakar</surname><given-names>Suman</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sharma</surname><given-names>Surendra K.</given-names></name><xref ref-type="aff" rid="I1"><sup>1, 2</sup></xref><xref ref-type="aff" rid="I2"></xref><xref ref-type="corresp" rid="cor1">*</xref></contrib><contrib contrib-type="author"><name><surname>Vashishtha</surname><given-names>Richa</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sharma</surname><given-names>Abhishek</given-names></name><xref ref-type="aff" rid="I3"><sup>3</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ranjan</surname><given-names>Sanjay</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Gupta</surname><given-names>Deepak</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sreenivas</surname><given-names>Vishnubhatla</given-names></name><xref ref-type="aff" rid="I4"><sup>4</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sinha</surname><given-names>Sanjeev</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Biswas</surname><given-names>Ashutosh</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Gulati</surname><given-names>Vinay</given-names></name><xref ref-type="aff" rid="I1"><sup>1</sup></xref></contrib></contrib-group><aff id="I1"><sup>1</sup>Department of Medicine, All India Institute of Medical Sciences, New Delhi 110029, India</aff><aff id="I2"><sup>2</sup>Division of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India</aff><aff id="I3"><sup>3</sup>University of Medicine, Pleven, Bulgaria</aff><aff id="I4"><sup>4</sup>Department of Biostatistics, All India Institute of Medical Sciences, New Delhi 110029, India</aff><author-notes><corresp id="cor1">*Surendra K. Sharma: <email>surensk@gmail.com</email></corresp><fn fn-type="other"><p>Academic Editor: Katalin Andrea Wilkinson</p></fn></author-notes><pub-date pub-type="ppub"><year>2011</year></pub-date><pub-date pub-type="epub"><day>1</day><month>12</month><year>2010</year></pub-date><volume>2011</volume><elocation-id>239021</elocation-id><history><date date-type="received"><day>14</day><month>7</month><year>2010</year></date><date date-type="rev-recd"><day>9</day><month>9</month><year>2010</year></date><date date-type="accepted"><day>31</day><month>10</month><year>2010</year></date></history><permissions><copyright-statement>Copyright © 2011 Suman Karmakar et al.</copyright-statement><copyright-year>2011</copyright-year><copyright-holder>Copyright © 2011 Suman Karmakar et al.</copyright-holder><license xlink:href="https://creativecommons.org/licenses/by/3.0/"><license-p>This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><p><italic>Background & Objective</italic>. IRIS is an important complication that occurs during management of HIV-TB coinfection and it poses difficulty in diagnosis. Previous studies have reported variable incidence of IRIS. The present study was undertaken to describe the pattern of TB-associated IRIS using recently proposed consensus case-definitions for TB-IRIS for its use in resource-limited settings. <italic>Methods</italic>. A prospective analysis of ART-naïve adults started on HAART from November, 2008 to May, 2010 was done in a tertiary care hospital in north India. A total 224 patients divided into two groups, one with HIV-TB and the other with HIV alone, were followedup for a minimum period of 3 months. The diagnosis of TB was categorised as ‘‘definitive” and ‘‘probable”. <italic>Results</italic>. Out of a total of 224 patients, 203 completed followup. Paradoxical TB-IRIS occurred in 5 of 123 (4%) HIV-TB patients while 6 of 80 (7.5%) HIV patients developed ART-associated TB. A reduction in plasma viral load was significantly (<italic>P</italic> = .016) associated with paradoxical TB-IRIS. No identifiable risk factors were associated with the development of ART-associated TB. <italic>Conclusion</italic>. The consensus case-definitions are useful tools in the diagnosis of TB-associated IRIS. High index of clinical suspicion is required for an early diagnosis.</p></abstract></article-meta></front><body><sec id="sec1"><title>1. Introduction</title><p>Human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) and tuberculosis (TB) are leading causes of morbidity and mortality worldwide [<xref rid="B1" ref-type="bibr">1</xref>]. The incidence of TB is highest among patients with advanced HIV disease [<xref rid="B2" ref-type="bibr">2</xref>]. A majority of the global burden of HIV-associated TB lies in resource-constrained countries [<xref rid="B1" ref-type="bibr">1</xref>]. Antiretroviral treatment (ART) has been made widely available in these areas over last several years now. However, many patients in these countries start ART at a late stage when they have advanced HIV/AIDS [<xref rid="B3" ref-type="bibr">3</xref>]. The beneficial effects of ART result from gradual restoration of pathogen-specific immune responses mediated by suppressed HIV-1 replication and increased CD4 cell count [<xref rid="B4" ref-type="bibr">4</xref>]. The fact that many patients accessing ART are already receiving treatment for TB presents a major clinical challenge due to the complexities involved in the concurrent management of these two coinfections [<xref rid="B5" ref-type="bibr">5</xref>–<xref rid="B8" ref-type="bibr">8</xref>]. In addition to high pill burden, drug cotoxicity and pharmacokinetic drug interactions, “immune reconstitution inflammatory syndrome” (IRIS) also called “immune reconstitution syndrome” (IRS) has been a major problem. The syndrome is usually a consequence of exaggerated activation of the immune system against persistent antigen (paradoxical IRIS) or viable pathogens (unmasking IRIS), but it can also develop as progression of proliferative disease in patients with cancers [<xref rid="B9" ref-type="bibr">9</xref>]. IRS is associated with certain infectious (e.g., <italic>mycobacteria, varicella zoster, cytomegalovirus</italic>) and noninfectious (autoimmune or neoplastic) conditions. ART-induced IRS includes either a paradoxical worsening of treated opportunistic infections (paradoxical form) or the unmasking of previously subclinical, untreated infections (unmasking form) [<xref rid="B10" ref-type="bibr">10</xref>–<xref rid="B12" ref-type="bibr">12</xref>]. TB-associated IRIS has been reported in up to 43% of patients receiving concurrent treatment for these infections [<xref rid="B13" ref-type="bibr">13</xref>–<xref rid="B28" ref-type="bibr">28</xref>]. In an earlier publication where consensus case-definitions were applied retrospectively, 18 (7.5%) of 237 patients with TB at baseline had paradoxical TB-associated IRIS [<xref rid="B29" ref-type="bibr">29</xref>]. There has so far been only one [<xref rid="B27" ref-type="bibr">27</xref>] prospective study on TB-IRIS in India and most of the studies worldwide are also retrospective. In this communication, we report findings of a prospective study in HIV/AIDS patients started on highly active antiretroviral treatments (HAART) who were followed up at least for a predefined period for development of IRIS; TB-associated IRIS being of major interest.</p></sec><sec id="sec2"><title>2. Materials and Methods</title><p>We report findings of a prospective, observational study between November, 2008 to May, 2010 to determine the incidence of IRIS in patients with HIV-associated TB and to identify the risk factors for TB-IRIS. The study included adult HIV/AIDS patients who attended the outpatient department, ART clinic or were admitted to the All India Institute of Medical Sciences Hospital (AIIMS, New Delhi, India). The ART centre was opened at AIIMS hospital in May 2005 as part of National AIDS Control Programme started in April 2004. The hospital provides tertiary care to the population of Delhi and its neighbouring states and most of its patients come from the lower socioeconomic strata. The hospital and the clinic provides service to both newly diagnosed as well as referred cases. </p><p> Following were exclusion criteria: development of hypersensitivity to antiretroviral or antituberculosis drugs, past history of HAART, pregnancy, anticipated difficulty in followup and failure to give written informed consent. </p><p> Two hundred and twenty four HIV-infected ART-naïve adults who were recently diagnosed and started on HAART were divided into two groups: (i) HIV/AIDS patients with active TB and (ii) HIV/AIDS patients with no evidence of active TB at the time of recruitment in the study. HIV infection was documented by a licensed third generation ELISA kit as described in earlier study [<xref rid="B30" ref-type="bibr">30</xref>]. Tuberculosis was diagnosed as described in the previous study [<xref rid="B31" ref-type="bibr">31</xref>]. Culture and drug susceptibility testing (DST) for <italic>Mycobacterium tuberculosis</italic> were done in all cases where specimens were available to rule out drug-resistant TB. TB cases were divided into two categories—(i) definitive—where <italic>Mycobacterium tuberculosis</italic> was demonstrated in smear (Ziehl Neelsen method) and/or culture (Lowenstein Jensen) or <italic>Mycobacterium tuberculosis</italic>-polymerase chain reaction (<italic>Mtb</italic>-PCR) was positive in various body fluids (sputum, bronchoalveolar lavage fluid, pleural fluid, ascitic fluid, pericardial fluid, cerebrospinal fluid, bone marrow aspirate, pus specimens from cold abscesses) and (ii) probable—where specimen for smear and/or culture or <italic>Mtb</italic>-PCR was negative or could not be obtained due to technical difficulties. Criteria for diagnosis included: (a) pulmonary infiltrates located at classical site with no response to antibiotics; (b) exudative effusion or other body fluids with predominantly lymphocytes and elevated adenosine deaminase (ADA) activity (>35 U/L); (c) imaging (chest radiograph, ultrasonography, computed tomography and magnetic resonance imaging) highly suggestive of TB especially intrathoracic and abdominal lymph nodes with central hypodensity and peripheral rim enhancement; (d) imaging showing lesions in liver, spleen, intestine, bone and brain highly suggestive of TB (image-guided aspiration from lymph nodes or other lesions not possible due to technical difficulty); (e) clinical and radiological response to antiTB treatment during followup. Any one of criteria (a) to (d) along with (e) was required to be present for the diagnosis of probable TB. Both definitive and probable TB cases were included. The Institutional Ethics Committee approved the study. Written informed consent was obtained from all patients.</p><p> Patients underwent a thorough clinical examination on enrolment and subsequently every month as they came to the ART clinic for followup and collection of antiretroviral drugs in accordance with the Guidelines of National AIDS Control Organisation (NACO) of Ministry of Health and Family Welfare, Government of India [<xref rid="B32" ref-type="bibr">32</xref>, <xref rid="B33" ref-type="bibr">33</xref>]. All details were recorded in a predesigned proforma. Patients with TB were provided treatment free of cost from Directly Observed Treatment Short-Course (DOTS) centre in accordance with the Revised National Treatment Control Programme (RNTCP) of Ministry of Health and Family Welfare, Govt. of India [<xref rid="B34" ref-type="bibr">34</xref>, <xref rid="B35" ref-type="bibr">35</xref>]. Anti-TB treatment was administered intermittently, thrice a week while the ART was administered daily as described earlier [<xref rid="B34" ref-type="bibr">34</xref>, <xref rid="B35" ref-type="bibr">35</xref>]. The time of HAART initiation was decided as per NACO guidelines [<xref rid="B32" ref-type="bibr">32</xref>]. Medical social workers ensured regular visits of the patients to the DOTS and ART clinics.</p><p> The minimum followup period was 3 months for development of IRIS. All the patients were followed up till the end of the study. Hence those who were recruited earlier would have had longer followup than those who were recruited later. Patients were contacted telephonically or their houses were visited in case they failed to turn up for their scheduled visits [<xref rid="B33" ref-type="bibr">33</xref>, <xref rid="B35" ref-type="bibr">35</xref>]. End point of the study was development of TB-IRIS according to the case-definitions. Diagnosis of IRIS was based on published case-definitions criteria published by Meintjes et al. [<xref rid="B36" ref-type="bibr">36</xref>] for TB-associated IRIS and French et al. [<xref rid="B37" ref-type="bibr">37</xref>] for other cases. In cases where IRIS developed, change in CD4 count, plasma viral load, haematological and biochemical parameters were noted. CD4 count and HIV viral load were estimated using flow-cytometry (Becton Dickinson, USA) and Amplicor HIV-1 Monitor Test (Reverse Transcriptase Polymerase Chain Reaction, Roche Diagnostics Corp., Indianapolis), respectively.</p><sec sec-type="subsection" id="sec2.1"><title>2.1. Statistical Analysis</title><p>Continuous data are presented as mean ± standard deviation (for normally distributed variables) or median and interquartile range or IQR (for variable influenced by extreme values). Categorical data are presented as numbers with proportions, <italic>n</italic>(%). Percentage reduction in viral load has been calculated by dividing absolute reduction in viral load by baseline viral load and then multiplying it by 100. The categorical data were compared between groups by the Chi square or Fisher's exact test and continuous variables by the Mann-Whitney <italic>U</italic>-test. All tests were two-sided, and <italic>P</italic> < .05 was considered statistically significant. All analyses were using a statistical software package (Intercooled Stata 8.0 for Windows, Stata Corporation, College Station, TX, USA).</p></sec></sec><sec id="sec3"><title>3. Results</title><p>Study data are summarized in <xref ref-type="fig" rid="fig1">Figure 1</xref>. As per case-definitions, all patients were followed-up for a minimum period of 3 months. A total of 203 patients (123 in HIV-TB group and 80 patients in HIV group) has completed 3 months followup and TB-IRIS data of these patients are being reported. </p><p> Pretreatment absolute CD4 count was significantly lower in HIV-TB group (137 (IQR 72–222) versus 198 (IQR 93–238) cells/<italic>μ</italic>l, <italic>P</italic> = .038) compared to HIV group (<xref ref-type="table" rid="tab1">Table 1</xref>).</p><p> HIV-TB group had 123 patients; 98 (80%) had extrapulmonary TB (EPTB) (39 (32%) of these had disseminated TB) while 25 (20%) patients had pulmonary TB (PTB) (<xref ref-type="table" rid="tab2">Table 2</xref>). </p><p>Forty eight of 123 (39%) patients had “definitive” TB and remaining 75 patients had “probable” TB. Of these 75 probable TB cases, all had imaging features compatible with TB, 38 of 75 patients had cytological and biochemical characteristics in body fluids (pleural effusion, ascites or CSF), 3 had histopathological findings highly suggestive of TB and all of them showed clinical and imaging response to antiTB treatment during followup (minimal followup 3 months in the last recruited patients). A detailed description has been provided in Tables <xref ref-type="table" rid="tab3">3</xref>a and <xref ref-type="table" rid="tab3">3</xref>b.</p><p>In total, 5 (4%) of 123 patients with TB at baseline started on HAART had paradoxical TB-associated IRIS (<xref ref-type="table" rid="tab4">Table 4</xref>), while 6 (7.5%) of 80 patients without TB at baseline developed ART-associated TB after starting HAART. All 11 episodes of IRIS and ART-associated TB occurred within 3 months of starting HAART. Median intervals between initiation of HAART and occurrence of paradoxical TB-IRIS and ART-associated TB were 73 (IQR 6–84) and 37 (IQR 7–88) days, respectively. Comparisons of clinical characteristics of different groups of patients have been detailed in Tables <xref ref-type="table" rid="tab5">5</xref>, <xref ref-type="table" rid="tab6">6</xref> and <xref ref-type="table" rid="tab7">7</xref>. None of these patients died during followup period. </p><p>Most common clinical manifestation in patients with paradoxical worsening was new onset fever, anorexia and weight loss. A detailed description has been provided in <xref ref-type="table" rid="tab8">Table 8</xref>. All had definitive TB (<xref ref-type="table" rid="tab9">Table 9</xref>) and multidrug-resistant TB was ruled out by DST. All episodes were of mild to moderate severity not requiring any interruption of HAART. Hospitalization was required in 3 of 5 patients. Two patients required repeated aspiration of TB cervical cold abscesses. Symptoms of paradoxical deterioration resolved within one week with continued treatment, antipyretics (paracetamol), analgesics (nonsteroidal antiinflammatory drugs) and none required steroids.</p><p> In 6 patients with ART-associated TB, 5 had pulmonary TB and 1 had TB lymphadenitis—diagnosis of TB was definitive in all cases (Tables <xref ref-type="table" rid="tab8">8</xref>, <xref ref-type="table" rid="tab9">9</xref>). None of these patients had an inflammatory clinical presentation, for example, TB lymphadenitis or abscesses with prominent acute inflammatory features or pulmonary tuberculosis complicated by respiratory failure due to adult respiratory distress syndrome, suggestive of unmasking TB-associated IRIS. None of these patients required hospitalization. All patients were administered antiTB treatment and showed good response to treatment. </p><p>There were total 6 (2.7%) cases of nonTB-IRIS—2 patients with <italic>herpes zoster</italic>, 2 patients with <italic>cytomegalovirus </italic>infection (IgM positive and biopsy from gut lesion showing characteristic cytopathic effect), 1 patient with <italic>cryptococcal </italic>meningitis (India ink and <italic>cryptococcal </italic>antigen in CSF positive) and 1 patient with progressive multifocal leukoencephalopathy (confirmatory findings on MRI brain and culture for JC virus positive).</p><p>On univariate analyses, age, gender, body mass index, presence of extra-pulmonary/disseminated TB, baseline CD4 count, percentage change in CD4 and baseline viral load were not significantly associated with the development of paradoxical TB-associated IRIS or ART-associated TB. In patients who developed paradoxical TB-associated IRIS, the median interval between the initiation of antiTB treatment and HAART was shorter as compared to those who did not develop although the difference was not statistically significant (20 (IQR 18–27) versus 32 (IQR 21–70) days; <italic>P</italic> = .136). There was a significantly higher reduction in viral load (99.93 (IQR 99.91–99.97) versus 99.58 (IQR 98.85–99.9) %; <italic>P</italic> = .016) in patients who developed paradoxical TB-associated IRIS (<xref ref-type="table" rid="tab5">Table 5</xref>). The similar trend was found in patients with ART-associated TB but it was not statistically significant (<xref ref-type="table" rid="tab6">Table 6</xref>). However, when patients with any IRIS and ART-associated TB were compared with those who did not develop IRIS, statistically significant differences were found in increase in CD4 (136 (IQR 60–272) versus 53 (IQR 15–146) %; <italic>P</italic> = .023) and decrease in viral load (99.91 (IQR 99.8–99.93) versus 99.55 (IQR 98.76–99.9) %; <italic>P</italic> = .002). </p></sec><sec id="sec4"><title>4. Discussion</title><p>In present study 4% of patients with HIV-associated TB developed paradoxical TB-associated IRIS after starting HAART and 7.5% of patients with no overt evidence of TB at initiation of HAART developed ART-associated TB. Only a few prospective studies have been published using the consensus case-definitions for TB-IRIS. Earlier studies from developed nations had reported a high incidence of TB-associated IRIS (17–43%) as compared to studies from developing nations (2–13%) [<xref rid="B13" ref-type="bibr">13</xref>–<xref rid="B28" ref-type="bibr">28</xref>]. Kumarasamy et al. [<xref rid="B27" ref-type="bibr">27</xref>] from southern India in their recent publication found the incidence of paradoxical TB-associated IRIS to be 5.5%. </p><p>The results of present study are similar to a recent publication from our centre where authors applied consensus case-definitions criteria retrospectively [<xref rid="B29" ref-type="bibr">29</xref>] and in this study also no case of ART-associated TB fulfilling the criteria of unmasking TB-IRIS was reported. Incidence rates of paradoxical TB-IRIS and ART-associated TB were 7.5% and 3%, respectively in that study. Authors observed significant differences in baseline CD4 count and change in the CD4 cell count after 6 months between patients who developed paradoxical TB-IRIS and those who did not.</p><p>The higher incidence of TB-IRIS reported, particularly in the western literature, can be explained by leniency of clinical diagnostic criteria. Moreover, clinical diagnosis is readily made by the experts working in the field of HIV-TB. Hence, the staff of ART clinics should be adequately trained to suspect, categorise and confirm the diagnosis by appropriate investigations. Institutional adjudication committee may look into the diagnosis of IRIS. There should also be a proper reporting system to the higher agencies which could be further facilitated by establishing regional or national registry. An effort from the NACO in this regard will be highly welcome. The true incidence of TB-IRIS may be known from future studies with the application of consensus case definitions. </p><p>The lack of application of uniform case-definitions for TB-associated IRIS across various published studies makes direct comparison of these results difficult. Recently, an International Network for the Study of HIV-associated IRIS (INSHI) case-definitions for TB-associated IRIS has been proposed for their use in resource-limited settings [<xref rid="B36" ref-type="bibr">36</xref>]. These have been validated in both retrospective and prospective studies [<xref rid="B38" ref-type="bibr">38</xref>, <xref rid="B39" ref-type="bibr">39</xref>] and have shown good agreement with other published case definitions and expert opinions for IRIS. In the present study we have used these proposed case-definitions for the diagnosis of TB-associated IRIS.</p><p>Though the consensus case-definitions can be easily applied in resource-limited settings where it is not always possible to get CD4 count or plasma viral load readily and regularly, it seems to have some limitations. First, it would have missed the patients who developed paradoxical TB-associated IRIS after 90 days of HAART—while it is still a possibility, even keeping in mind the chance of a new infection. Second, the definition for unmasking TB-IRIS seems to be too stringent to be applicable in clinical practice and the arbitrary cut-off of 3 months is likely to miss a few cases. </p><p>Though none of ART-associated TB met the criteria of heightened inflammatory response to be categorised as unmasking TB-IRIS in both studies from our centre, clinicians should remain highly vigilant in HIV patients who develop TB after starting ART, as they can have much more severe disease and can deteriorate rapidly due to immune reconstitution and may even require hospitalization.</p><p>In the present study no statistically significant influence of age, gender, BMI, baseline CD4 or viral load and magnitude of change in CD4 were found on occurrence of TB-IRIS as opposed to the findings of previous studies [<xref rid="B13" ref-type="bibr">13</xref>–<xref rid="B28" ref-type="bibr">28</xref>]. Early initiation of HAART after antiTB treatment was associated with paradoxical TB-associated IRIS though not statistically significant as mentioned in previous studies [<xref rid="B13" ref-type="bibr">13</xref>–<xref rid="B28" ref-type="bibr">28</xref>]. But decrease in viral load was associated with paradoxical TB-IRIS as proposed in the literature [<xref rid="B4" ref-type="bibr">4</xref>–<xref rid="B8" ref-type="bibr">8</xref>]. Extra-pulmonary and disseminated TB has been reported to be associated with the occurrence of TB-associated IRIS in previous studies. Though in our study 4 out of 5 paradoxical reactions occurred in patients with extra-pulmonary TB and only 1 of those had disseminated TB. These discrepancies could possibly be due to the small number of IRIS events in the present study. Though the patients were explained thoroughly about the possible symptoms of IRIS and strictly instructed to visit the clinic or contact the investigator on occurrence of any symptoms suspicious of IRIS, monthly followup schedule might have missed a few cases of IRIS occurring in between. Another possible explanation for low incidence of IRIS could be the use of intermittent thrice weekly antiTB treatment in place of daily drug regimen. </p><p>In view of relatively low incidence of TB-IRIS in South-East Asia, the small sample size of the present study makes it very difficult to identify the risk factors associated with it. </p><p>Extrapulmonary TB which is much more common in advanced cases of HIV/AIDS has a very low bacillary load in samples and it is sometimes not possible to get specimens for microbiological or histopathological diagnosis due to difficulties with imaging guided procedures [<xref rid="B40" ref-type="bibr">40</xref>, <xref rid="B41" ref-type="bibr">41</xref>]. Moreover, in the developing nations with resource-limited settings, as opposed to the present study which was conducted in a tertiary care centre, state-of-the-art imaging for both diagnosis and followup and other diagnostic facilities (like ADA level estimation, PCR) are not available in peripheral centres. The same holds true for diagnosis of other opportunistic infections particularly viral, fungal and protozoal infestations. Availability of limited laboratory facilities in the public hospitals, use of commercial laboratories by the patients and a lack of accreditation and quality assurance of these laboratories are real problems. However, it is to be emphasized here that these definitions have been formulated for use in the resource-limited settings like ours where access to such investigations is expected to be limited.</p><p>We did not encounter any death due to IRIS. But it will be prudent to keep in mind that IRIS affecting central nervous system or producing acute respiratory distress syndrome can be lethal if not diagnosed timely and treated appropriately. Since, till date no single clinical factor has been identified which can predict development of IRIS, a high index of clinical suspicion is still the key for an early diagnosis of IRIS. Further research is needed to better understand the immune-pathogenesis of the various types of IRIS so that better diagnostic tests and effective therapies can be developed.</p></sec><sec id="sec5"><title>5. Conclusion</title><p>TB-associated IRIS reactions are important and may complicate management of HIV-TB coinfection. They should be promptly recognised and treated. Most cases of TB-associated IRIS can be managed easily and do not need discontinuation of ART. The consensus case-definitions seem to be a useful tool in the diagnosis of TB-associated IRIS in resource-poor countries where access to laboratory facilities is limited.</p></sec></body><back><ack><title>Acknowledgments</title><p>Abhishek Sharma (University of Medicine-Pleven, Bulgaria) was a short-term trainee in the Department of Medicine at the All India Institute of Medical Sciences, New Delhi, India. He helped in data management and followup of HIV-TB patients. Authors are thankful to National AIDS Control Organisation (NACO) (Ministry of Health and Family Welfare, Govt. of India), Delhi State AIDS Control Society (DSACS) and Central TB Division, (Ministry of Health and Family Welfare, Govt. of India) for providing drugs free of cost and other support staff and the All India Institute of Medical Sciences hospital, New Delhi for providing administrative and other logistic support to carry out this study. 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pub-id-type="pmid">15520485</pub-id></element-citation></ref></ref-list></back><floats-group><fig id="fig1" position="float"><label>Figure 1</label><caption><p>Study profile. HIV: human immunodeficiency virus; TB: tuberculosis; IRIS: immune reconstitution inflammatory syndrome; PMLE: progressive multifocal leukoencephalopathy; HZ: herpes zoster; CMV: cytomegalovirus; Crypto: cryptococcal meningitis.</p></caption><graphic xlink:href="CDI2011-239021.001"></graphic></fig><table-wrap id="tab1" position="float"><label>Table 1</label><caption><p>Baseline characteristics of 203 patients with HIV/AIDS.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">HIV-TB (<italic>n</italic> = 123)</th><th align="center" rowspan="1" colspan="1">HIV (<italic>n</italic> = 80)</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Age (yrs)</td><td align="center" rowspan="1" colspan="1">36 ± 10</td><td align="center" rowspan="1" colspan="1">35 ± 9</td></tr><tr><td align="left" rowspan="1" colspan="1">Sex (% male)</td><td align="center" rowspan="1" colspan="1">80*</td><td align="center" rowspan="1" colspan="1">59*</td></tr><tr><td align="left" rowspan="1" colspan="1">BMI (kg/m<sup>2</sup>)</td><td align="center" rowspan="1" colspan="1">19 ± 4.5</td><td align="center" rowspan="1" colspan="1">19.6 ± 3.8</td></tr><tr><td align="left" rowspan="1" colspan="1">CD4 (cells/<italic>μ</italic>l)</td><td align="center" rowspan="1" colspan="1">137 (72–222)<sup>†</sup></td><td align="center" rowspan="1" colspan="1">198 (93–238)<sup>†</sup></td></tr><tr><td align="left" rowspan="1" colspan="1">Plasma VL (log<sub>10</sub> copies/ml)</td><td align="center" rowspan="1" colspan="1">5.23 (4.79–5.65)</td><td align="center" rowspan="1" colspan="1">5.09 (4.55–5.65)</td></tr></tbody></table><table-wrap-foot><fn><p>BMI: body mass index; VL: viral load</p></fn><fn><p>Age and BMI are presented as mean ± SD; gender as % of male and CD4 cell counts and viral load as median and IQR</p></fn><fn><p>*<italic>P</italic> = .001</p></fn><fn><p><sup>†</sup><italic>P</italic> = .038.</p></fn></table-wrap-foot></table-wrap><table-wrap id="tab2" position="float"><label>Table 2</label><caption><p>Detailed description of 123 TB patients in the HIV-TB group.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1">Type/site of TB</th><th align="center" rowspan="1" colspan="1">HIV-TB group</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">PTB [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">25 (20)*</td></tr><tr><td align="left" rowspan="1" colspan="1">EPTB [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">98 (80)</td></tr><tr><td align="left" rowspan="1" colspan="1">DTB [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">39 (32)</td></tr><tr><td align="left" rowspan="1" colspan="1">Lung + Pleura + mediastinal LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">11 (9)*</td></tr><tr><td align="left" rowspan="1" colspan="1">Pleura + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">6 (5)</td></tr><tr><td align="left" rowspan="1" colspan="1">Lung + pleura [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">4 (3)</td></tr><tr><td align="left" rowspan="1" colspan="1">Ascites + RP/mesenteric LN + mediastinal LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">4 (3)</td></tr><tr><td align="left" rowspan="1" colspan="1">Ascites + hepatosplenomegaly + RP/mesenteric LN + mediastinal LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">3 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Lung + pleura + Ascites + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">3 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Ascites + hepatosplenomegaly + mediastinal LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Lung + pleura + Ascites + hepatosplenomegaly + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Lung + pleura + Ileocaecal + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Cervical LN + mediastinal LN + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Abdomen [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">23 (19)</td></tr><tr><td align="left" rowspan="1" colspan="1">Ascites + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">8 (7)</td></tr><tr><td align="left" rowspan="1" colspan="1">Ascites + hepatosplenomegaly + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">7 (6)</td></tr><tr><td align="left" rowspan="1" colspan="1">Ascites + hepatosplenomegaly [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">4 (3)</td></tr><tr><td align="left" rowspan="1" colspan="1">Ileocaecal + RP/mesenteric LN [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">4 (3)</td></tr><tr><td align="left" rowspan="1" colspan="1">Lymph node [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">16 (13)</td></tr><tr><td align="left" rowspan="1" colspan="1">Cervical [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">10 (8)<sup>†</sup></td></tr><tr><td align="left" rowspan="1" colspan="1">Abdominal [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">4 (3)</td></tr><tr><td align="left" rowspan="1" colspan="1">RP + mesenteric LN</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">RP LN</td><td align="center" rowspan="1" colspan="1">1 (1)</td></tr><tr><td align="left" rowspan="1" colspan="1">Periportal + mesenteric LN</td><td align="center" rowspan="1" colspan="1">1 (1)</td></tr><tr><td align="left" rowspan="1" colspan="1">Mediastinal [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Pleural effusion [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">11 (9)</td></tr><tr><td align="left" rowspan="1" colspan="1">CNS [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">6 (5)</td></tr><tr><td align="left" rowspan="1" colspan="1">Meningitis [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">3 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Tuberculoma [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Meningitis + Tuberculoma [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">1 (1)</td></tr><tr><td align="left" rowspan="1" colspan="1">MTB [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">2 (2)</td></tr><tr><td align="left" rowspan="1" colspan="1">Pott's spine [<italic>n</italic>(%)]</td><td align="center" rowspan="1" colspan="1">1 (1)</td></tr></tbody></table><table-wrap-foot><fn><p>PTB: pulmonary tuberculosis; EPTB: extra pulmonary tuberculosis; RP: retroperitoneal; LN: lymph nodes; CNS: central nervous system; DTB: disseminated tuberculosis; MTB: military tuberculosis</p></fn><fn><p>EPTB is presented as % of TB; Types of EPTB as % of EPTB; Subtypes of EPTB types as % of EPTB along with absolute no. of cases</p></fn><fn><p>*One patient each from these groups developed paradoxical TB-IRIS</p></fn><fn><p><sup>†</sup>Three patients from this group developed paradoxical TB-IRIS.</p></fn></table-wrap-foot></table-wrap><table-wrap-group id="tab3" position="float"><label>Table 3</label><caption><p>(a) Method of “definitive*” TB diagnosis in HIV-TB group. *<italic>Mycobacterium tuberculosis</italic> demonstrated in smear and/or culture and/or TB—polymerase chain reaction (PCR) positive in body fluids. PCR: polymerase chain reaction; BAL: bronchoalveolar lavage; CSF: cerebrospinal fluid; LN: lymph node. <sup>†</sup>In 25 cases fine needle aspiration was done, 12 of these showed <italic>Mycobacterium tuberculosis. </italic><sup>‡</sup>One patient from this group developed paradoxical TB-IRIS. <sup>§</sup>One patient from this group developed paradoxical TB-IRIS. (b) Method of “probable*” TB diagnosis in HIV-TB group. *Specimens for smear or culture or PCR for <italic>Mycobacterium tuberculosis</italic> negative or could not be obtained. <sup>†</sup>High resolution or contrast-enhanced computed tomography (CECT) of chest showing—centrilobular nodules with tree-in-bud appearance, miliary nodules, thick walled cavities, enlarged mediastinal lymph nodes with central hypodensities and peripheral rim enhancement suggestive of necrosis; CECT of abdomen showing enlarged liver or spleen with multiple hypodensities suggestive of granulomas or abscesses, matted bowel loops, thickening of terminal ileum and caecum, enlarged necrotic mesenteric or retroperitoneal lymph nodes; CECT and/or magnetic resonance imaging (MRI) of brain showing basal meningitis and/or multiple ring enhancing lesion suggestive of tuberculomas; MRI of spine showing loss of intervertebral space with destruction of vertebral bodies with or without paravertebral abscesses. <sup>‡</sup>Elevated protein, predominantly lymphocytes and high adenosine deaminase level. <sup>§</sup>FNAC or biopsy showing granulomas with caseation necrosis. <sup>¶,<italic>||</italic></sup>,**One patient each from these groups developed paradoxical TB-IRIS.</p></caption><table-wrap id="tab3a" position="anchor"><caption><p>(a) </p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="2" colspan="1">Specimen type</th><th align="center" colspan="4" rowspan="1">Test (positive/performed)</th></tr><tr><th align="center" rowspan="1" colspan="1">Smear</th><th align="center" rowspan="1" colspan="1">Culture</th><th align="center" rowspan="1" colspan="1">TB-PCR</th><th align="center" rowspan="1" colspan="1">Overall</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Sputum</td><td align="center" rowspan="1" colspan="1">12<sup>‡</sup>/25</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">12</td></tr><tr><td align="left" rowspan="1" colspan="1">BAL</td><td align="center" rowspan="1" colspan="1">0/4</td><td align="center" rowspan="1" colspan="1">2/4</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">2</td></tr><tr><td align="left" rowspan="1" colspan="1">Pleural fluid</td><td align="center" rowspan="1" colspan="1">0/39</td><td align="center" rowspan="1" colspan="1">0/39</td><td align="center" rowspan="1" colspan="1">9/39</td><td align="center" rowspan="1" colspan="1">9</td></tr><tr><td align="left" rowspan="1" colspan="1">Ascitic fluid</td><td align="center" rowspan="1" colspan="1">0/28</td><td align="center" rowspan="1" colspan="1">0/28</td><td align="center" rowspan="1" colspan="1">6/28</td><td align="center" rowspan="1" colspan="1">6</td></tr><tr><td align="left" rowspan="1" colspan="1">CSF</td><td align="center" rowspan="1" colspan="1">0/6</td><td align="center" rowspan="1" colspan="1">2/6</td><td align="center" rowspan="1" colspan="1">3/6</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1">Bone marrow aspirate</td><td align="center" rowspan="1" colspan="1">0/2</td><td align="center" rowspan="1" colspan="1">2/2</td><td align="center" rowspan="1" colspan="1">2/2</td><td align="center" rowspan="1" colspan="1">2</td></tr><tr><td align="left" rowspan="1" colspan="1">LN aspirate</td><td align="center" rowspan="1" colspan="1">14<sup>§</sup>/27<sup>†</sup></td><td align="center" rowspan="1" colspan="1">2/2</td><td align="center" rowspan="1" colspan="1">2/2</td><td align="center" rowspan="1" colspan="1">14</td></tr><tr><td align="center" colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Total</td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1">48</td></tr></tbody></table></table-wrap><table-wrap id="tab3b" position="anchor"><caption><p>(b) </p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1">Characteristic findings</th><th align="center" rowspan="1" colspan="1">No. present</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">(i) Radiological<sup>†</sup></td><td align="center" rowspan="1" colspan="1">75<sup>¶,<italic>||</italic>,</sup>**</td></tr><tr><td align="left" rowspan="1" colspan="1">(ii) Body fluids<sup>‡</sup></td><td align="center" rowspan="1" colspan="1">39</td></tr><tr><td align="left" rowspan="1" colspan="1"> Pleural effusion</td><td align="center" rowspan="1" colspan="1">22<sup>¶</sup></td></tr><tr><td align="left" rowspan="1" colspan="1"> Ascites</td><td align="center" rowspan="1" colspan="1">14</td></tr><tr><td align="left" rowspan="1" colspan="1"> CSF</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1">(iii) Histopathological<sup>§</sup></td><td align="center" rowspan="1" colspan="1">3<sup><italic>||</italic></sup></td></tr><tr><td align="left" rowspan="1" colspan="1">(i) + (ii) + (iii)</td><td align="center" rowspan="1" colspan="1">1</td></tr><tr><td align="left" rowspan="1" colspan="1">(i) + (ii)</td><td align="center" rowspan="1" colspan="1">38<sup>¶</sup></td></tr><tr><td align="left" rowspan="1" colspan="1">(i) + (iii)</td><td align="center" rowspan="1" colspan="1">2<sup><italic>||</italic></sup></td></tr><tr><td align="left" rowspan="1" colspan="1">(i)</td><td align="center" rowspan="1" colspan="1">34**</td></tr><tr><td align="center" colspan="2" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Total</td><td align="center" rowspan="1" colspan="1">75</td></tr></tbody></table></table-wrap></table-wrap-group><table-wrap id="tab4" position="float"><label>Table 4</label><caption><p>Diagnosis of paradoxical TB-IRIS according to consensus case-definition.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="2" colspan="1">Sl. no.</th><th align="center" colspan="2" rowspan="1">TB</th><th align="left" rowspan="2" colspan="1">TB-IRIS</th><th align="center" colspan="2" rowspan="1">Clinical criteria*</th></tr><tr><th align="left" rowspan="1" colspan="1">Site</th><th align="left" rowspan="1" colspan="1">Category</th><th align="left" rowspan="1" colspan="1">Major</th><th align="left" rowspan="1" colspan="1">Minor </th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">(1)</td><td align="left" rowspan="1" colspan="1">DTB (Lung + Pleura + mediastinal LN)</td><td align="left" rowspan="1" colspan="1">Probable</td><td align="left" rowspan="1" colspan="1">DTB (Lung + Pleura + mediastinal + RP/mesenteric LN)</td><td align="left" rowspan="1" colspan="1">New LN</td><td align="left" rowspan="1" colspan="1">Worsening constitutional symptoms (fever, weight loss, etc.) </td></tr><tr><td align="center" colspan="6" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">(2)</td><td align="left" rowspan="1" colspan="1">LNTB (cervical)</td><td align="left" rowspan="1" colspan="1">Definitive</td><td align="left" rowspan="1" colspan="1">DTB (cervical + mediastinal + RP/mesenteric LN)</td><td align="left" rowspan="1" colspan="1">New LN</td><td align="left" rowspan="1" colspan="1">Worsening constitutional symptoms</td></tr><tr><td align="center" colspan="6" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">(3)</td><td align="left" rowspan="1" colspan="1">LNTB (cervical)</td><td align="left" rowspan="1" colspan="1">Probable</td><td align="left" rowspan="1" colspan="1">DTB (cervical + mediastinal + RP/mesenteric LN)</td><td align="left" rowspan="1" colspan="1">New LN</td><td align="left" rowspan="1" colspan="1">Worsening constitutional symptoms</td></tr><tr><td align="center" colspan="6" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">(4)</td><td align="left" rowspan="1" colspan="1">PTB</td><td align="left" rowspan="1" colspan="1">Definitive</td><td align="left" rowspan="1" colspan="1">PTB</td><td align="left" rowspan="1" colspan="1">Worsening CXR</td><td align="left" rowspan="1" colspan="1">Worsening constitutional symptoms<break></break>Worsening respiratory symptoms (cough, dyspnoea, etc.) </td></tr><tr><td align="center" colspan="6" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">(5)</td><td align="left" rowspan="1" colspan="1">LNTB (cervical)</td><td align="left" rowspan="1" colspan="1">Probable</td><td align="left" rowspan="1" colspan="1">LNTB (cervical)</td><td align="left" rowspan="1" colspan="1">New & enlarging LN</td><td align="left" rowspan="1" colspan="1">Worsening constitutional symptoms</td></tr></tbody></table><table-wrap-foot><fn><p>PTB: pulmonary tuberculosis; RP: retroperitoneal; LN: lymph nodes; DTB: disseminated tuberculosis</p></fn><fn><p>*“Antecedent requirements” and “Alternative explanations for clinical deterioration” criteria were fulfilled in all the cases.</p></fn></table-wrap-foot></table-wrap><table-wrap id="tab5" position="float"><label>Table 5</label><caption><p>Comparison characteristics between patients with and without TB-IRIS in 123 patients with HIV-TB.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">No. TB-IRIS</th><th align="center" rowspan="1" colspan="1">TB-IRIS</th></tr><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1"> (<italic>n</italic> = 118)</th><th align="center" rowspan="1" colspan="1">(<italic>n</italic> = 5) </th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Age (yrs)</td><td align="center" rowspan="1" colspan="1">37 ± 10</td><td align="center" rowspan="1" colspan="1">31 ± 7</td></tr><tr><td align="left" rowspan="1" colspan="1">Sex (% male)</td><td align="center" rowspan="1" colspan="1">80</td><td align="center" rowspan="1" colspan="1">80</td></tr><tr><td align="left" rowspan="1" colspan="1">BMI (kg/m<sup>2</sup>)</td><td align="center" rowspan="1" colspan="1">19 ± 5</td><td align="center" rowspan="1" colspan="1">18 ± 3</td></tr><tr><td align="left" rowspan="1" colspan="1">ATT-ART (days)</td><td align="center" rowspan="1" colspan="1">32 (21–70)</td><td align="center" rowspan="1" colspan="1">20 (18–27)</td></tr><tr><td align="left" rowspan="1" colspan="1">CD4 (cells/<italic>μ</italic>l)</td><td align="center" rowspan="1" colspan="1">136 (70–225.75)</td><td align="center" rowspan="1" colspan="1">167 (118–193)</td></tr><tr><td align="left" rowspan="1" colspan="1">Increase in CD4</td><td align="center" rowspan="2" colspan="1">89 (32.25–144.75)</td><td align="center" rowspan="2" colspan="1">229 (61–283)</td></tr><tr><td align="left" rowspan="1" colspan="1">(cells/<italic>μ</italic>l)</td></tr><tr><td align="left" rowspan="1" colspan="1">Increase in CD4 (%)</td><td align="center" rowspan="1" colspan="1">57.6 (24–181)</td><td align="center" rowspan="1" colspan="1">119 (63.5–207)</td></tr><tr><td align="left" rowspan="1" colspan="1">VL (log<sub>10</sub> copies/ml)</td><td align="center" rowspan="1" colspan="1">5.21 (4.76–5.65)</td><td align="center" rowspan="1" colspan="1">5.49 (5.18–5.63)</td></tr><tr><td align="left" rowspan="1" colspan="1">Decrease in VL</td><td align="center" rowspan="2" colspan="1">5.19 (4.76–5.63)</td><td align="center" rowspan="2" colspan="1">5.49 (5.18–5.63)</td></tr><tr><td align="left" rowspan="1" colspan="1">(log<sub>10</sub> copies/ml)</td></tr><tr><td align="left" rowspan="1" colspan="1">Decrease in VL (%)</td><td align="center" rowspan="1" colspan="1">99.58 (98.85–99.9)*</td><td align="center" rowspan="1" colspan="1">99.93 (99.91–99.97)*</td></tr></tbody></table><table-wrap-foot><fn><p>BMI: body mass index; ATT: antituberculosis treatment; ART: antiretroviral treatment; VL: viral load</p></fn><fn><p>Age and BMI are presented as mean ± SD; gender as % of male; EPTB as % of TB; DTB as % of EPTB and ATT-ART gap, CD4 cell counts and viral load as median and IQR</p></fn><fn><p>*<italic>P</italic> = .016.</p></fn></table-wrap-foot></table-wrap><table-wrap id="tab6" position="float"><label>Table 6</label><caption><p>Comparison of characteristics between patients with and without ART-associated TB in 80 patients with HIV.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">No TB</th><th align="center" rowspan="1" colspan="1">ART-associated TB</th></tr><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">(<italic>n</italic> = 74)</th><th align="center" rowspan="1" colspan="1">(<italic>n</italic> = 6)</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Age (yrs)</td><td align="center" rowspan="1" colspan="1">35 ± 9</td><td align="center" rowspan="1" colspan="1">35 ± 15</td></tr><tr><td align="left" rowspan="1" colspan="1">Sex (% male)</td><td align="center" rowspan="1" colspan="1">60</td><td align="center" rowspan="1" colspan="1">50</td></tr><tr><td align="left" rowspan="1" colspan="1">BMI (kg/m<sup>2</sup>)</td><td align="center" rowspan="1" colspan="1">19.7 ±3.8</td><td align="center" rowspan="1" colspan="1">19.4 ± 4</td></tr><tr><td align="left" rowspan="1" colspan="1">CD4 (cells/<italic>μ</italic>l)</td><td align="center" rowspan="1" colspan="1">200 (94.25–242)</td><td align="center" rowspan="1" colspan="1">132 (57.25–182.75)</td></tr><tr><td align="left" rowspan="1" colspan="1">Increase in CD4</td><td align="center" rowspan="2" colspan="1">88 (27.25–149.75)</td><td align="center" rowspan="2" colspan="1">161 (129–316)</td></tr><tr><td align="left" rowspan="1" colspan="1">(cells/<italic>μ</italic>l)</td></tr><tr><td align="left" rowspan="1" colspan="1">Increase in CD4 (%)</td><td align="center" rowspan="1" colspan="1">46 (11.5–126.5)</td><td align="center" rowspan="1" colspan="1">160 (72–369)</td></tr><tr><td align="left" rowspan="1" colspan="1">VL (log<sub>10</sub> copies/ml)</td><td align="center" rowspan="1" colspan="1">5.09 (4.54–5.65)</td><td align="center" rowspan="1" colspan="1">5.28 (4.95–5.51)</td></tr><tr><td align="left" rowspan="1" colspan="1">Decrease in VL</td><td align="center" rowspan="2" colspan="1">5.08 (4.5–5.57)</td><td align="center" rowspan="2" colspan="1">5.13 (4.87–5.39)</td></tr><tr><td align="left" rowspan="1" colspan="1">(log<sub>10</sub> copies/ml)</td></tr><tr><td align="left" rowspan="1" colspan="1">Decrease in VL (%)</td><td align="center" rowspan="1" colspan="1">99.58 (98.79–99.9)</td><td align="center" rowspan="1" colspan="1">99.91 (99.84–99.93)</td></tr></tbody></table><table-wrap-foot><fn><p>BMI: body mass index; VL: viral load</p></fn><fn><p>Age and BMI are presented as mean ± SD; gender as % of male and CD4 cell counts and viral load as median and IQR</p></fn><fn><p>There was no statistically significant difference.</p></fn></table-wrap-foot></table-wrap><table-wrap id="tab7" position="float"><label>Table 7</label><caption><p>Comparison of characteristics between HIV-TB patients without and with TB-IRIS and HIV patients with ART associated TB.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">No TB-IRIS</th><th align="center" rowspan="1" colspan="1">TB-IRIS</th><th align="center" rowspan="1" colspan="1">ART-associated TB</th></tr><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">(<italic>n</italic> = 118)</th><th align="center" rowspan="1" colspan="1">(<italic>n</italic> = 5)</th><th align="center" rowspan="1" colspan="1">(<italic>n</italic> = 6)</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Age (yrs)</td><td align="center" rowspan="1" colspan="1">37 ± 10</td><td align="center" rowspan="1" colspan="1">31 ± 7</td><td align="center" rowspan="1" colspan="1">35 ± 15</td></tr><tr><td align="left" rowspan="1" colspan="1">Sex (% male)</td><td align="center" rowspan="1" colspan="1">80</td><td align="center" rowspan="1" colspan="1">80</td><td align="center" rowspan="1" colspan="1">50</td></tr><tr><td align="left" rowspan="1" colspan="1">BMI (kg/m<sup>2</sup>)</td><td align="center" rowspan="1" colspan="1">19 ± 5</td><td align="center" rowspan="1" colspan="1">18 ± 3</td><td align="center" rowspan="1" colspan="1">19.4 ± 4</td></tr><tr><td align="left" rowspan="1" colspan="1">ATT-ART (days)</td><td align="center" rowspan="1" colspan="1">32 (21–70)</td><td align="center" rowspan="1" colspan="1">20 (18–27)</td><td align="center" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">ART-IRIS (days)</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">73 (6–84)</td><td align="center" rowspan="1" colspan="1">37 (7–88)</td></tr><tr><td align="left" rowspan="1" colspan="1">CD4 (cells/<italic>μ</italic>l)</td><td align="center" rowspan="1" colspan="1">136 (70–225.75)</td><td align="center" rowspan="1" colspan="1">167 (118–193)</td><td align="center" rowspan="1" colspan="1">132 (57.25–182.75)</td></tr><tr><td align="left" rowspan="1" colspan="1">Increase in CD4 (cells/<italic>μ</italic>l)</td><td align="center" rowspan="1" colspan="1">89 (32.25–144.75)</td><td align="center" rowspan="1" colspan="1">229 (61–283)</td><td align="center" rowspan="1" colspan="1">161 (129–316)</td></tr><tr><td align="left" rowspan="1" colspan="1">Increase in CD4 (%)</td><td align="center" rowspan="1" colspan="1">57.6 (24–181)</td><td align="center" rowspan="1" colspan="1">119 (63.5–207)</td><td align="center" rowspan="1" colspan="1">160 (72–369)</td></tr><tr><td align="left" rowspan="1" colspan="1">VL (log<sub>10</sub> copies/ml)</td><td align="center" rowspan="1" colspan="1">5.21 (4.76–5.65)</td><td align="center" rowspan="1" colspan="1">5.49 (5.18–5.63)</td><td align="center" rowspan="1" colspan="1">5.28 (4.95–5.51)</td></tr><tr><td align="left" rowspan="1" colspan="1">Decrease in VL (log<sub>10</sub> copies/ml)</td><td align="center" rowspan="1" colspan="1">5.19 (4.76–5.63)</td><td align="center" rowspan="1" colspan="1">5.49 (5.18–5.63)</td><td align="center" rowspan="1" colspan="1">5.13 (4.87–5.39)</td></tr><tr><td align="left" rowspan="1" colspan="1">Decrease in VL (%)</td><td align="center" rowspan="1" colspan="1">99.58 (98.85–99.9)</td><td align="center" rowspan="1" colspan="1">99.93 (99.91–99.97)</td><td align="center" rowspan="1" colspan="1">99.91 (99.84–99.93)</td></tr></tbody></table><table-wrap-foot><fn><p>BMI: body mass index; ATT: antituberculosis treatment; ART: antiretroviral treatment; VL: viral load</p></fn><fn><p>Age and BMI are presented as mean ± SD; gender as % of male and ATT-ART gap, ART-IRIS gap, CD4 cell counts and viral load as median and IQR.</p></fn></table-wrap-foot></table-wrap><table-wrap id="tab8" position="float"><label>Table 8</label><caption><p>Description of TB in patients with TB-IRIS (at the time of IRIS) and ART-associated TB.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="left" rowspan="1" colspan="1">Paradoxical TB-IRIS (<italic>n</italic> = 5)*</th><th align="left" rowspan="1" colspan="1">ART-associated TB (<italic>n</italic> = 6)</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">PTB [<italic>n</italic> (%)]</td><td align="left" rowspan="1" colspan="1">1</td><td align="left" rowspan="1" colspan="1">5</td></tr><tr><td align="left" rowspan="1" colspan="1">EPTB [<italic>n</italic> (%)]</td><td align="left" rowspan="1" colspan="1">4</td><td align="left" rowspan="1" colspan="1">1</td></tr><tr><td align="left" rowspan="1" colspan="1">DTB [<italic>n</italic> (%)]</td><td align="left" rowspan="1" colspan="1">3</td><td align="left" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">Lung + Pleura + mediastinal LN + RP/mesenteric LN [<italic>n</italic> (%)]</td><td align="left" rowspan="1" colspan="1">1</td><td align="left" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">Cervical LN + mediastinal LN + RP/mesenteric LN [<italic>n</italic> (%)]</td><td align="left" rowspan="1" colspan="1">2</td><td align="left" rowspan="1" colspan="1">—</td></tr><tr><td align="left" rowspan="1" colspan="1">Lymph node [<italic>n</italic> (%)]</td><td align="left" rowspan="1" colspan="1">1</td><td align="left" rowspan="1" colspan="1">1</td></tr><tr><td align="left" rowspan="1" colspan="1">Cervical [<italic>n</italic> (%)]</td><td align="left" rowspan="1" colspan="1">1</td><td align="left" rowspan="1" colspan="1">1</td></tr></tbody></table><table-wrap-foot><fn><p>PTB: pulmonary tuberculosis; EPTB: extrapulmonary tuberculosis; DTB: disseminated tuberculosis; LN: lymph node</p></fn><fn><p>EPTB, types of EPTB and subtypes of EPTB types presented in absolute no. of cases</p></fn><fn><p>*Three of the 5 patients with paradoxical IRIS had cervical TB lymphadenopathy at presentation while one had disseminated and the other had pulmonary TB. After being started on ART, one with cervical TB lymphadenopathy developed enlargement of the previously existing lymph nodes along with appearance of new nodes in the neck; other two with cervical TB lymphadenopathy developed disseminated TB; in one with disseminated TB (lung, pleura and mediastinum) the disease became more extensive (with abdominal involvement); and one with pulmonary TB developed new chest infiltrates with increased bacillary load in the sputum.</p></fn></table-wrap-foot></table-wrap><table-wrap id="tab9" position="float"><label>Table 9</label><caption><p>Method of TB diagnosis in patients with TB-IRIS (at the time of IRIS) and ART-associated TB.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="left" rowspan="2" colspan="1">Specimen type</th><th align="center" colspan="4" rowspan="1">Test (positive/performed)</th></tr><tr><th align="center" rowspan="1" colspan="1">Smear</th><th align="center" rowspan="1" colspan="1">Culture</th><th align="center" rowspan="1" colspan="1">TB-PCR</th><th align="center" rowspan="1" colspan="1">Overall</th></tr></thead><tbody><tr><td align="center" colspan="5" rowspan="1">TB-IRIS</td></tr><tr><td align="center" colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Sputum</td><td align="center" rowspan="1" colspan="1">1/1</td><td align="center" rowspan="1" colspan="1">1/1</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">1</td></tr><tr><td align="left" rowspan="1" colspan="1">LN aspirate</td><td align="center" rowspan="1" colspan="1">4/4</td><td align="center" rowspan="1" colspan="1">4/4</td><td align="center" rowspan="1" colspan="1">4/4</td><td align="center" rowspan="1" colspan="1">4 </td></tr><tr><td align="center" colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Total</td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1">5</td></tr><tr><td align="center" colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="center" colspan="5" rowspan="1">ART-associated TB</td></tr><tr><td align="center" colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Sputum</td><td align="center" rowspan="1" colspan="1">4/5</td><td align="center" rowspan="1" colspan="1">5/5</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">5</td></tr><tr><td align="left" rowspan="1" colspan="1">LN aspirate*</td><td align="center" rowspan="1" colspan="1">1/1</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">—</td><td align="center" rowspan="1" colspan="1">1 </td></tr><tr><td align="center" colspan="5" rowspan="1"><hr></hr></td></tr><tr><td align="left" rowspan="1" colspan="1">Total</td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1">6</td></tr></tbody></table><table-wrap-foot><fn><p>PCR: polymerase chain reaction; LN: lymph node</p></fn><fn><p>*Fine needle aspiration was done in this case and the specimen also showed necrotizing granulomas on histopathological examination.</p></fn></table-wrap-foot></table-wrap></floats-group></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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