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Subacute Bacterial Endocarditis with Leptotrichia goodfellowii in a Patient with a Valvular Allograft: A Case Report and Review of the Literature

Identifieur interne : 006C52 ( Ncbi/Merge ); précédent : 006C51; suivant : 006C53

Subacute Bacterial Endocarditis with Leptotrichia goodfellowii in a Patient with a Valvular Allograft: A Case Report and Review of the Literature

Auteurs : Wilfredo R. Matias [États-Unis] ; Daniel L. Bourque [États-Unis] ; Tomoko Niwano [Japon] ; Andrew B. Onderdonk [États-Unis] ; Joel T. Katz [États-Unis]

Source :

RBID : PMC:5118523

Abstract

Leptotrichia species are normal constituents of the oral cavity and the genitourinary tract microbiota that are known to provoke disease in immunocompromised patients and rarely in immunocompetent individuals. Following the description of Leptotrichia goodfellowii sp. nov., two cases of endocarditis by this species have been reported. Here, we report a case of Leptotrichia goodfellowii endocarditis in an immunocompetent patient with a valvular allograft. The isolation and identification of Leptotrichia can be challenging, and it is likely that infection with this pathogen is significantly underdiagnosed. A definitive identification, as in this case, most often requires 16S rRNA gene sequencing, highlighting the increasingly important role of this diagnostic modality among immunocompetent patients with undetermined anaerobic bacteremia.


Url:
DOI: 10.1155/2016/3051212
PubMed: 27895947
PubMed Central: 5118523

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Links to Exploration step

PMC:5118523

Le document en format XML

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<name sortKey="Matias, Wilfredo R" sort="Matias, Wilfredo R" uniqKey="Matias W" first="Wilfredo R." last="Matias">Wilfredo R. Matias</name>
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<italic>Leptotrichia </italic>
species are normal constituents of the oral cavity and the genitourinary tract microbiota that are known to provoke disease in immunocompromised patients and rarely in immunocompetent individuals. Following the description of
<italic> Leptotrichia goodfellowii </italic>
sp. nov., two cases of endocarditis by this species have been reported. Here, we report a case of
<italic> Leptotrichia goodfellowii</italic>
endocarditis in an immunocompetent patient with a valvular allograft. The isolation and identification of
<italic> Leptotrichia</italic>
can be challenging, and it is likely that infection with this pathogen is significantly underdiagnosed. A definitive identification, as in this case, most often requires 16S rRNA gene sequencing, highlighting the increasingly important role of this diagnostic modality among immunocompetent patients with undetermined anaerobic bacteremia.</p>
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<journal-id journal-id-type="nlm-ta">Case Rep Infect Dis</journal-id>
<journal-id journal-id-type="iso-abbrev">Case Rep Infect Dis</journal-id>
<journal-id journal-id-type="publisher-id">CRIID</journal-id>
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<issn pub-type="epub">2090-6633</issn>
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<title-group>
<article-title>Subacute Bacterial Endocarditis with
<italic> Leptotrichia goodfellowii</italic>
in a Patient with a Valvular Allograft: A Case Report and Review of the Literature</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<contrib-id contrib-id-type="orcid" authenticated="false">http://orcid.org/0000-0002-5371-1354</contrib-id>
<name>
<surname>Matias</surname>
<given-names>Wilfredo R.</given-names>
</name>
<xref ref-type="aff" rid="I1">
<sup>1</sup>
</xref>
<xref ref-type="corresp" rid="cor1">
<sup>*</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Bourque</surname>
<given-names>Daniel L.</given-names>
</name>
<xref ref-type="aff" rid="I1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="I2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Niwano</surname>
<given-names>Tomoko</given-names>
</name>
<xref ref-type="aff" rid="I3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Onderdonk</surname>
<given-names>Andrew B.</given-names>
</name>
<xref ref-type="aff" rid="I1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="I4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Katz</surname>
<given-names>Joel T.</given-names>
</name>
<xref ref-type="aff" rid="I1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="I5">
<sup>5</sup>
</xref>
</contrib>
</contrib-group>
<aff id="I1">
<sup>1</sup>
Harvard Medical School, Boston, MA, USA</aff>
<aff id="I2">
<sup>2</sup>
Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA</aff>
<aff id="I3">
<sup>3</sup>
Tokyo Medical and Dental University, Tokyo, Japan</aff>
<aff id="I4">
<sup>4</sup>
Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA</aff>
<aff id="I5">
<sup>5</sup>
Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA, USA</aff>
<author-notes>
<corresp id="cor1">*Wilfredo R. Matias:
<email>wilfredo_matias@hms.harvard.edu</email>
</corresp>
<fn fn-type="other">
<p>Academic Editor: Alexandre Rodrigues Marra</p>
</fn>
</author-notes>
<pub-date pub-type="ppub">
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>8</day>
<month>11</month>
<year>2016</year>
</pub-date>
<volume>2016</volume>
<elocation-id>3051212</elocation-id>
<history>
<date date-type="received">
<day>18</day>
<month>8</month>
<year>2016</year>
</date>
<date date-type="accepted">
<day>16</day>
<month>10</month>
<year>2016</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright © 2016 Wilfredo R. Matias et al.</copyright-statement>
<copyright-year>2016</copyright-year>
<license xlink:href="https://creativecommons.org/licenses/by/4.0/">
<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>Leptotrichia </italic>
species are normal constituents of the oral cavity and the genitourinary tract microbiota that are known to provoke disease in immunocompromised patients and rarely in immunocompetent individuals. Following the description of
<italic> Leptotrichia goodfellowii </italic>
sp. nov., two cases of endocarditis by this species have been reported. Here, we report a case of
<italic> Leptotrichia goodfellowii</italic>
endocarditis in an immunocompetent patient with a valvular allograft. The isolation and identification of
<italic> Leptotrichia</italic>
can be challenging, and it is likely that infection with this pathogen is significantly underdiagnosed. A definitive identification, as in this case, most often requires 16S rRNA gene sequencing, highlighting the increasingly important role of this diagnostic modality among immunocompetent patients with undetermined anaerobic bacteremia.</p>
</abstract>
<funding-group>
<award-group>
<funding-source>National Institute of Allergy and Infectious Diseases</funding-source>
<award-id>T32 AI007061</award-id>
</award-group>
</funding-group>
</article-meta>
</front>
<floats-group>
<table-wrap id="tab1" orientation="portrait" position="float">
<label>Table 1</label>
<caption>
<p>Reported cases of
<italic>Leptotrichia</italic>
sp. endocarditis.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" rowspan="1" colspan="1">Reference</th>
<th align="center" rowspan="1" colspan="1">Year</th>
<th align="center" rowspan="1" colspan="1">Patient age</th>
<th align="center" rowspan="1" colspan="1">Sex</th>
<th align="center" rowspan="1" colspan="1">Presentation</th>
<th align="left" rowspan="1" colspan="1">Predisposing cardiac condition</th>
<th align="center" rowspan="1" colspan="1">Valve affected</th>
<th align="left" rowspan="1" colspan="1">Definitive identification method</th>
<th align="center" rowspan="1" colspan="1">Organism isolated</th>
<th align="left" rowspan="1" colspan="1">Antibiotic regimen</th>
<th align="center" rowspan="1" colspan="1">Surgical intervention</th>
<th align="left" rowspan="1" colspan="1">Outcome</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" rowspan="1" colspan="1">Current case</td>
<td align="center" rowspan="1" colspan="1">2015</td>
<td align="center" rowspan="1" colspan="1">44</td>
<td align="center" rowspan="1" colspan="1">M</td>
<td align="center" rowspan="1" colspan="1">Subacute endocarditis</td>
<td align="left" rowspan="1" colspan="1">Bioprosthetic pulmonic valve, aortic valve homograft</td>
<td align="center" rowspan="1" colspan="1">Pulmonic</td>
<td align="left" rowspan="1" colspan="1">16S rRNA sequencing</td>
<td align="center" rowspan="1" colspan="1">
<italic>L. goodfellowii</italic>
</td>
<td align="left" rowspan="1" colspan="1">(1) Vancomycin, ceftriaxone, metronidazole
<break></break>
(2) Piperacillin/tazobactam, metronidazole
<break></break>
(3) Ceftriaxone, metronidazole</td>
<td align="center" rowspan="1" colspan="1">No</td>
<td align="left" rowspan="1" colspan="1">Recovery</td>
</tr>
<tr>
<td align="left" rowspan="1" colspan="1">Caram et al.</td>
<td align="center" rowspan="1" colspan="1">2008</td>
<td align="center" rowspan="1" colspan="1">74</td>
<td align="center" rowspan="1" colspan="1">F</td>
<td align="center" rowspan="1" colspan="1">Subacute endocarditis</td>
<td align="left" rowspan="1" colspan="1">Mitral regurgitation</td>
<td align="center" rowspan="1" colspan="1">Mitral</td>
<td align="left" rowspan="1" colspan="1">16S rRNA sequencing</td>
<td align="center" rowspan="1" colspan="1">
<italic>L. goodfellowii</italic>
</td>
<td align="left" rowspan="1" colspan="1">Piperacillin/tazobactam</td>
<td align="center" rowspan="1" colspan="1">Yes</td>
<td align="left" rowspan="1" colspan="1">Mitral valve replacement with complete resolution of symptoms</td>
</tr>
<tr>
<td align="left" rowspan="1" colspan="1">Caram et al.</td>
<td align="center" rowspan="1" colspan="1">2008</td>
<td align="center" rowspan="1" colspan="1">52</td>
<td align="center" rowspan="1" colspan="1">M</td>
<td align="center" rowspan="1" colspan="1">Acute endocarditis</td>
<td align="left" rowspan="1" colspan="1">Bioprosthetic aortic valve</td>
<td align="center" rowspan="1" colspan="1">Aortic</td>
<td align="left" rowspan="1" colspan="1">16S rRNA sequencing</td>
<td align="center" rowspan="1" colspan="1">
<italic>L. goodfellowii</italic>
</td>
<td align="left" rowspan="1" colspan="1">Ceftriaxone, metronidazole</td>
<td align="center" rowspan="1" colspan="1">Yes</td>
<td align="left" rowspan="1" colspan="1">Recovery</td>
</tr>
<tr>
<td align="left" rowspan="1" colspan="1">Hammann et al.</td>
<td align="center" rowspan="1" colspan="1">1993</td>
<td align="center" rowspan="1" colspan="1">65</td>
<td align="center" rowspan="1" colspan="1">F</td>
<td align="center" rowspan="1" colspan="1">Subacute endocarditis</td>
<td align="left" rowspan="1" colspan="1">Prosthetic aortic valve</td>
<td align="center" rowspan="1" colspan="1">Aortic</td>
<td align="left" rowspan="1" colspan="1">(1) Anaerobic Schaedler agar with 5% sheep blood, Columbia agar in air with 5% CO
<sub>2</sub>
(GasPak CO
<sub>2</sub>
system, BD)
<break></break>
(2) Conventional tests for fermentation reactions and gas chromatography</td>
<td align="center" rowspan="1" colspan="1">
<italic>L. buccalis</italic>
-like</td>
<td align="left" rowspan="1" colspan="1">(1) Cefotaxime, metronidazole
<break></break>
(2) Vancomycin, imipenem</td>
<td align="center" rowspan="1" colspan="1">Yes</td>
<td align="left" rowspan="1" colspan="1">Recovery and surgery, followed by deterioration and death secondary to acute LV failure and anterior MI</td>
</tr>
<tr>
<td align="left" rowspan="1" colspan="1">Duperval et al.</td>
<td align="center" rowspan="1" colspan="1">1984</td>
<td align="center" rowspan="1" colspan="1">24</td>
<td align="center" rowspan="1" colspan="1">M</td>
<td align="center" rowspan="1" colspan="1">Subacute endocarditis</td>
<td align="left" rowspan="1" colspan="1">Endocardial cushion defect, coarctation of the aorta, Down Syndrome</td>
<td align="center" rowspan="1" colspan="1">Mitral</td>
<td align="left" rowspan="1" colspan="1">Gas chromatography after growth on peptone-yeast-glucose agar</td>
<td align="center" rowspan="1" colspan="1">
<italic>L. buccalis</italic>
</td>
<td align="left" rowspan="1" colspan="1">Penicillin G</td>
<td align="center" rowspan="1" colspan="1">No</td>
<td align="left" rowspan="1" colspan="1">Recovery</td>
</tr>
</tbody>
</table>
</table-wrap>
</floats-group>
</pmc>
<affiliations>
<list>
<country>
<li>Japon</li>
<li>États-Unis</li>
</country>
<region>
<li>Massachusetts</li>
<li>Région de Kantō</li>
</region>
<settlement>
<li>Tokyo</li>
</settlement>
</list>
<tree>
<country name="États-Unis">
<region name="Massachusetts">
<name sortKey="Matias, Wilfredo R" sort="Matias, Wilfredo R" uniqKey="Matias W" first="Wilfredo R." last="Matias">Wilfredo R. Matias</name>
</region>
<name sortKey="Bourque, Daniel L" sort="Bourque, Daniel L" uniqKey="Bourque D" first="Daniel L." last="Bourque">Daniel L. Bourque</name>
<name sortKey="Bourque, Daniel L" sort="Bourque, Daniel L" uniqKey="Bourque D" first="Daniel L." last="Bourque">Daniel L. Bourque</name>
<name sortKey="Katz, Joel T" sort="Katz, Joel T" uniqKey="Katz J" first="Joel T." last="Katz">Joel T. Katz</name>
<name sortKey="Katz, Joel T" sort="Katz, Joel T" uniqKey="Katz J" first="Joel T." last="Katz">Joel T. Katz</name>
<name sortKey="Onderdonk, Andrew B" sort="Onderdonk, Andrew B" uniqKey="Onderdonk A" first="Andrew B." last="Onderdonk">Andrew B. Onderdonk</name>
<name sortKey="Onderdonk, Andrew B" sort="Onderdonk, Andrew B" uniqKey="Onderdonk A" first="Andrew B." last="Onderdonk">Andrew B. Onderdonk</name>
</country>
<country name="Japon">
<region name="Région de Kantō">
<name sortKey="Niwano, Tomoko" sort="Niwano, Tomoko" uniqKey="Niwano T" first="Tomoko" last="Niwano">Tomoko Niwano</name>
</region>
</country>
</tree>
</affiliations>
</record>

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