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A Comparison of Characteristics and Outcomes in Severe Human Metapneumovirus and Respiratory Syncytial Virus Infections in Children Treated in an Intensive Care Unit

Eggleston, Heath A. MD*; Gunville, Cameron F. DO; Miller, Joshua I. MPH; Sontag, Marci K. PhD; Mourani, Peter M. MD

The Pediatric Infectious Disease Journal: December 2013 - Volume 32 - Issue 12 - p 1330–1334
doi: 10.1097/INF.0b013e3182a2261b
Original Studies

Background: Human metapneumovirus (HMPV) and respiratory syncytial virus (RSV) are among the leading causes of respiratory tract infections requiring admission to the pediatric intensive care unit (PICU). We evaluated the risk factors, clinical courses and outcomes of severe HMPV disease relative to severe RSV in children admitted to the PICU.

Methods: Retrospective chart review of children ≤18 years old admitted to a tertiary PICU between October 2008 through July 2010 with acute respiratory tract infection and positive direct antigen stain or polymerase chain reaction for RSV or HMPV.

Results: One hundred thirty-three patients met inclusion criteria: 107 (80.5%) with RSV and 26 (19.5%) with HMPV. HMPV-infected patients were older than RSV children (3.4 vs. 1.5 years, P = 0.002) and more likely to have congenital heart disease (34.6% vs. 10.3%, P = 0.002). Although HMPV children required longer duration of mechanical ventilation (11 vs. 7 days, P = 0.01), there were no other differences in hospital course. HMPV patients were more likely to be discharged receiving inhaled steroids (53.8% vs. 30.8%, P = 0.03), but there were no differences in other outcome assessments.

Conclusions: Children admitted to the PICU with HMPV are significantly older and more likely to have congenital heart disease than those with RSV. The course of illness was similar between the 2 groups, but HMPV-infected children were more likely to be discharged with inhaled steroid therapy.

From the *University of Colorado School of Medicine; Section of Critical Care, Department of Pediatrics, University of Colorado Denver, Denver, Colorado; and Department of Epidemiology, Colorado School of Public Health, University of Colorado Denver, Aurora, CO.

Accepted for publication June 25, 2013.

The authors have no funding or conflicts of interest to disclose.

Address for correspondence: Peter M. Mourani, MD, Critical Care, University of Colorado Denver, Mail Stop 8414, 13121 East 17th Avenue, Aurora, CO 80045. E-mail: Peter.Mourani@childrenscolorado.org.

© 2013 by Lippincott Williams & Wilkins, Inc.