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Increased incidence of co-infection in critically ill patients with influenza.

Identifieur interne : 000092 ( Main/Exploration ); précédent : 000091; suivant : 000093

Increased incidence of co-infection in critically ill patients with influenza.

Auteurs : Ignacio Martin-Loeches [Irlande (pays), Espagne] ; Marcus J Schultz [Pays-Bas] ; Jean-Louis Vincent [Belgique] ; Francisco Alvarez-Lerma [Espagne] ; Lieuwe D. Bos [Pays-Bas] ; Jordi Solé-Violán [Espagne] ; Antoni Torres [Espagne] ; Alejandro Rodriguez [Espagne]

Source :

RBID : pubmed:27709265

Descripteurs français

English descriptors

Abstract

BACKGROUND

Co-infection is frequently seen in critically ill patients with influenza, although the exact rate is unknown. We determined the rate of co-infection, the risk factors and the outcomes associated with co-infection in critically ill patients with influenza over a 7-year period in 148 Spanish intensive care units (ICUs).

METHODS

This was a prospective, observational, multicentre study. Influenza was diagnosed using the polymerase chain reaction. Co-infection had to be confirmed using standard bacteriological tests. The primary endpoint of this analysis was the presence of community-acquired co-infection, with secondary endpoints including ICU, 28-day and hospital mortality.

RESULTS

Of 2901 ICU patients diagnosed with influenza, 482 (16.6 %) had a co-infection. The proportion of cases of co-infection increased from 11.4 % (110/968) in 2009 to 23.4 % (80/342) in 2015 (P < 0.001). Compared with patients without co-infection, patients with co-infection were older [adjusted odds ratio (aOR) 1.1, 95 % confidence interval 1.1-1.2; P < 0.001] and were more frequently immunosuppressed due to existing HIV infection (aOR 2.6 [1.5-4.5]; P < 0.001) or preceding medication (aOR 1.4 [1.1-1.9]; P = 0.03). Co-infection was an independent risk factor for ICU mortality (aOR 1.4 [1.1-1.8]; P < 0.02), 28-day mortality (aOR 1.3 [1.1-1.7]; P = 0.04) and hospital mortality (aOR 1.9 [1.5-2.5]; P < 0.001).

CONCLUSIONS

Co-infection in critically ill patients with influenza has increased in recent years. In this Spanish cohort, age and immunosuppression were risk factors for co-infection, and co-infection was an independent risk factor for ICU, 28-day and hospital mortality.


DOI: 10.1007/s00134-016-4578-y
PubMed: 27709265


Affiliations:


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Le document en format XML

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<term>Adult (MeSH)</term>
<term>Aged (MeSH)</term>
<term>Aged, 80 and over (MeSH)</term>
<term>Coinfection (epidemiology)</term>
<term>Community-Acquired Infections (epidemiology)</term>
<term>Critical Illness (epidemiology)</term>
<term>Female (MeSH)</term>
<term>Humans (MeSH)</term>
<term>Incidence (MeSH)</term>
<term>Influenza, Human (epidemiology)</term>
<term>Male (MeSH)</term>
<term>Middle Aged (MeSH)</term>
<term>Prospective Studies (MeSH)</term>
<term>Risk Factors (MeSH)</term>
<term>Spain (epidemiology)</term>
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<term>Adulte d'âge moyen (MeSH)</term>
<term>Co-infection (épidémiologie)</term>
<term>Espagne (épidémiologie)</term>
<term>Facteurs de risque (MeSH)</term>
<term>Femelle (MeSH)</term>
<term>Grippe humaine (épidémiologie)</term>
<term>Humains (MeSH)</term>
<term>Incidence (MeSH)</term>
<term>Infections communautaires (épidémiologie)</term>
<term>Maladie grave (épidémiologie)</term>
<term>Mâle (MeSH)</term>
<term>Sujet âgé (MeSH)</term>
<term>Sujet âgé de 80 ans ou plus (MeSH)</term>
<term>Études prospectives (MeSH)</term>
</keywords>
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<term>Coinfection</term>
<term>Community-Acquired Infections</term>
<term>Critical Illness</term>
<term>Influenza, Human</term>
<term>Spain</term>
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<keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr">
<term>Co-infection</term>
<term>Espagne</term>
<term>Grippe humaine</term>
<term>Infections communautaires</term>
<term>Maladie grave</term>
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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Female</term>
<term>Humans</term>
<term>Incidence</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Prospective Studies</term>
<term>Risk Factors</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Facteurs de risque</term>
<term>Femelle</term>
<term>Humains</term>
<term>Incidence</term>
<term>Mâle</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
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<div type="abstract" xml:lang="en">
<p>
<b>BACKGROUND</b>
</p>
<p>Co-infection is frequently seen in critically ill patients with influenza, although the exact rate is unknown. We determined the rate of co-infection, the risk factors and the outcomes associated with co-infection in critically ill patients with influenza over a 7-year period in 148 Spanish intensive care units (ICUs).</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>METHODS</b>
</p>
<p>This was a prospective, observational, multicentre study. Influenza was diagnosed using the polymerase chain reaction. Co-infection had to be confirmed using standard bacteriological tests. The primary endpoint of this analysis was the presence of community-acquired co-infection, with secondary endpoints including ICU, 28-day and hospital mortality.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>RESULTS</b>
</p>
<p>Of 2901 ICU patients diagnosed with influenza, 482 (16.6 %) had a co-infection. The proportion of cases of co-infection increased from 11.4 % (110/968) in 2009 to 23.4 % (80/342) in 2015 (P < 0.001). Compared with patients without co-infection, patients with co-infection were older [adjusted odds ratio (aOR) 1.1, 95 % confidence interval 1.1-1.2; P < 0.001] and were more frequently immunosuppressed due to existing HIV infection (aOR 2.6 [1.5-4.5]; P < 0.001) or preceding medication (aOR 1.4 [1.1-1.9]; P = 0.03). Co-infection was an independent risk factor for ICU mortality (aOR 1.4 [1.1-1.8]; P < 0.02), 28-day mortality (aOR 1.3 [1.1-1.7]; P = 0.04) and hospital mortality (aOR 1.9 [1.5-2.5]; P < 0.001).</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>CONCLUSIONS</b>
</p>
<p>Co-infection in critically ill patients with influenza has increased in recent years. In this Spanish cohort, age and immunosuppression were risk factors for co-infection, and co-infection was an independent risk factor for ICU, 28-day and hospital mortality.</p>
</div>
</front>
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<Year>2017</Year>
<Month>11</Month>
<Day>16</Day>
</DateCompleted>
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<Year>2018</Year>
<Month>11</Month>
<Day>13</Day>
</DateRevised>
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<ISSN IssnType="Electronic">1432-1238</ISSN>
<JournalIssue CitedMedium="Internet">
<Volume>43</Volume>
<Issue>1</Issue>
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<Year>2017</Year>
<Month>Jan</Month>
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<Abstract>
<AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Co-infection is frequently seen in critically ill patients with influenza, although the exact rate is unknown. We determined the rate of co-infection, the risk factors and the outcomes associated with co-infection in critically ill patients with influenza over a 7-year period in 148 Spanish intensive care units (ICUs).</AbstractText>
<AbstractText Label="METHODS" NlmCategory="METHODS">This was a prospective, observational, multicentre study. Influenza was diagnosed using the polymerase chain reaction. Co-infection had to be confirmed using standard bacteriological tests. The primary endpoint of this analysis was the presence of community-acquired co-infection, with secondary endpoints including ICU, 28-day and hospital mortality.</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">Of 2901 ICU patients diagnosed with influenza, 482 (16.6 %) had a co-infection. The proportion of cases of co-infection increased from 11.4 % (110/968) in 2009 to 23.4 % (80/342) in 2015 (P < 0.001). Compared with patients without co-infection, patients with co-infection were older [adjusted odds ratio (aOR) 1.1, 95 % confidence interval 1.1-1.2; P < 0.001] and were more frequently immunosuppressed due to existing HIV infection (aOR 2.6 [1.5-4.5]; P < 0.001) or preceding medication (aOR 1.4 [1.1-1.9]; P = 0.03). Co-infection was an independent risk factor for ICU mortality (aOR 1.4 [1.1-1.8]; P < 0.02), 28-day mortality (aOR 1.3 [1.1-1.7]; P = 0.04) and hospital mortality (aOR 1.9 [1.5-2.5]; P < 0.001).</AbstractText>
<AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">Co-infection in critically ill patients with influenza has increased in recent years. In this Spanish cohort, age and immunosuppression were risk factors for co-infection, and co-infection was an independent risk factor for ICU, 28-day and hospital mortality.</AbstractText>
</Abstract>
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<LastName>Martin-Loeches</LastName>
<ForeName>Ignacio</ForeName>
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<Affiliation>Multidisciplinary Intensive Care Research Organization (MICRO), Wellcome Trust-HRB Clinical Research, Department of Clinical Medicine, Trinity Centre for Health Sciences, St James's University Hospital, Dublin, Ireland. drmartinloeches@gmail.com.</Affiliation>
</AffiliationInfo>
<AffiliationInfo>
<Affiliation>CIBERes, Madrid, Spain. drmartinloeches@gmail.com.</Affiliation>
</AffiliationInfo>
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<LastName>J Schultz</LastName>
<ForeName>Marcus</ForeName>
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