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Open Access 01-03-2016 | Original

Cytomegalovirus reactivation and mortality in patients with acute respiratory distress syndrome

Authors: David S. Y. Ong, Cristian Spitoni, Peter M. C. Klein Klouwenberg, Frans M. Verduyn Lunel, Jos F. Frencken, Marcus J. Schultz, Tom van der Poll, Jozef Kesecioglu, Marc J. M. Bonten, Olaf L. Cremer

Published in: Intensive Care Medicine | Issue 3/2016

Abstract

Purpose

Cytomegalovirus (CMV) reactivation occurs frequently in patients with the acute respiratory distress syndrome (ARDS) and has been associated with increased mortality. However, it remains unknown whether this association represents an independent risk for poor outcome. We aimed to estimate the attributable effect of CMV reactivation on mortality in immunocompetent ARDS patients.

Methods

We prospectively studied immunocompetent ARDS patients who tested seropositive for CMV and remained mechanically ventilated beyond day 4 in two tertiary intensive care units in the Netherlands from 2011 to 2013. CMV loads were determined in plasma weekly. Competing risks Cox regression was used with CMV reactivation status as a time-dependent exposure variable. Subsequently, in sensitivity analyses we adjusted for the evolution of disease severity until onset of reactivation using marginal structural modeling.

Results

Of 399 ARDS patients, 271 (68 %) were CMV seropositive and reactivation occurred in 74 (27 %) of them. After adjustment for confounding and competing risks, CMV reactivation was associated with overall increased ICU mortality (adjusted subdistribution hazard ratio (SHR) 2.74, 95 % CI 1.51–4.97), which resulted from the joint action of trends toward an increased mortality rate (direct effect; cause specific hazard ratio (HR) 1.58, 95 % CI 0.86–2.90) and a reduced successful weaning rate (indirect effect; cause specific HR 0.83, 95 % CI 0.58–1.18). These associations remained in sensitivity analyses. The population-attributable fraction of ICU mortality was 23 % (95 % CI 6–41) by day 30 (risk difference 4.4, 95 % CI 1.1–7.9).

Conclusion

CMV reactivation is independently associated with increased case fatality in immunocompetent ARDS patients who are CMV seropositive.

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Title: Cytomegalovirus reactivation and mortality in patients with acute respiratory distress syndrome
Authors: David S. Y. Ong
Cristian Spitoni
Peter M. C. Klein Klouwenberg
Frans M. Verduyn Lunel
Jos F. Frencken
Marcus J. Schultz
Tom van der Poll
Jozef Kesecioglu
Marc J. M. Bonten
Olaf L. Cremer
Publication date: 01-03-2016
Publisher: Springer Berlin Heidelberg
Published in: Intensive Care Medicine / Issue 3/2016
Print ISSN: 0342-4642
Electronic ISSN: 1432-1238
DOI: https://doi.org/10.1007/s00134-015-4071-z

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Cytomegalovirus reactivation and mortality in patients with acute respiratory distress syndrome

Abstract

Purpose

Methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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