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Abstract 11882: Acute Cardiac Events among Older Adults Hospitalized with Laboratory-Confirmed Respiratory Syncytial Virus

Circulation(2023)

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摘要
Introduction: Respiratory syncytial virus (RSV) can cause severe illness among older adults, but potential cardiac complications have not been comprehensively described. We evaluated the frequency and severity of acute cardiac events among older adults hospitalized with laboratory-confirmed RSV to inform recommendations for RSV vaccine candidates in development. Methods: The RSV-Associated Hospitalization Surveillance Network (RSV-NET) abstracted medical record data among all hospitalized patients identified with laboratory-confirmed RSV infection (clinician-ordered testing) in a population-based catchment area of 38 counties in 9 states. Among adults aged ≥50 years hospitalized with RSV during the 2015-16 to 2017-18 RSV seasons, we estimated the period prevalence and 95% confidence interval (CI) of acute cardiac events, identified from the patient’s discharge diagnoses and ICD-10 codes. Multivariable generalized estimating equation models estimated the adjusted risk ratio (aRR) of intensive care unit (ICU) admission and in-hospital death by acute cardiac event status. Results: Among 3959 adults aged ≥50 years hospitalized with RSV (mean age 73 years), 20.8% (CI, 19.5-22.1) experienced an acute cardiac event during hospitalization, most frequently acute heart failure (14.3%; CI, 13.2-15.4; Table). Acute cardiac events were common among adults aged ≥75 years (25.0%; CI, 23.1-27.0) and among those with underlying cardiac disease (30.4%; CI: 28.5-32.3). Compared to patients without an acute cardiac event, those with an acute cardiac event were more likely to experience ICU admission (16.8% vs 27.0%; aRR: 1.7, CI: 1.5-1.9) and in-hospital death (4.1% vs 8.8%; aRR: 2.0, CI: 1.6-2.5). Conclusions: One in 5 older adults hospitalized with RSV experienced an acute cardiac event, which was associated with approximately double the risk of severe outcomes. Adults at greater risk of cardiac complications from RSV may benefit from vaccines when available.
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