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Observational Study
. 2024 Sep 27;103(39):e39265.
doi: 10.1097/MD.0000000000039265.

Adult patients with severe respiratory syncytial virus infections in the emergency department

David Fistera  1 , Christian M Kramer  1 , Randi Katrin Manegold  1 , Carina Elsner  2 , Ulf Dittmer  2 , Christian Taube  3 , Clemens Kill  1 , Joachim Risse  1
Affiliations
Observational Study

Adult patients with severe respiratory syncytial virus infections in the emergency department

David Fistera et al. Medicine (Baltimore). .

Abstract

Respiratory syncytial virus (RSV) is a seasonal virus known to cause significant morbidity in pediatric patients; however, morbidity in adult patients has not been well investigated. We aimed to characterize adult patients with RSV infection in the emergency department (ED) and their clinical course. During the winter term 2022/23, all adult ED patients were screened for RSV, severe acute respiratory syndrome coronavirus type 2, and influenza infection using point-of-care polymerase chain reaction tests. All symptomatic RSV+ patients were further characterized based on their clinical presentation and course. A group comparison between RSV+ inpatients and RSV+ outpatients was conducted. The potential risk factors for inpatient treatment were evaluated using univariate and multivariate analyses. Of the 135 symptomatic RSV+ patients, 51.9% (70/135) were inpatients. Their length of stay were 9.4 (±10.4) days. Inpatients had a significantly higher mean age, lower oxygen saturation, higher leukocyte count, and higher C-reactive protein levels than outpatients. Among the preconditions, pulmonary diseases, tumors, and immunosuppression were significantly more frequent in the inpatient group. Thirty percent (21/70) of the inpatients required ICU treatment, 11% (8/70) required mechanical ventilation, and 9% (6/70) died. Malaise (P = .021, odds ratio 8.390) and detection of pulmonary infiltrations (P < .001, odds ratio 12.563) were the only independent predictors of inpatient treatment in the multivariate analysis. Our data show that RSV is a medically relevant pathogen among adult ED patients, often requiring inpatient treatment. In particular, elderly patients with some medical preconditions seem to be more prone to a severe course of infection requiring inpatient treatment. Lower respiratory tract involvement, proven by pulmonary infiltrates, seems to be crucial for a more severe disease course.

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Conflict of interest statement

The authors have no conflicts of interest to disclose.

Figures

Figure 1.
Figure 1.
Study flow chart.
Figure 2.
Figure 2.
Reported symptoms of in- and outpatients.
Figure 3.
Figure 3.
(a) Time course of RSV. (b) Time course of RSV, influenza, and SARS-CoV-2.
See this image and copyright information in PMC

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