Anderson EJ, Krilov LR, DeVincenzo JP, Checchia PA, Halasa N, Simões EA, Domachowske JB, Forbes ML, Pannaraj PS, McBride SJ, McLaurin KK, Kumar VR, Ambrose CS. SENTINEL1: An Observational Study of Respiratory Syncytial Virus Hospitalizations among U.S. Infants Born at 29 to 35 Weeks’ Gestational Age Not Receiving Immunoprophylaxis. Am J Perinatol. 2017 Jan;34(1):51-61. doi:10.1055/s-0036-1584147. Epub 2016 May 27. PubMed PMID: 27233106.
SENTINEL1 characterized U.S. preterm infants 29 to 35 weeks’ gestational age (wGA) < 12 months old hospitalized for laboratory-confirmed respiratory syncytial virus (RSV) disease and not receiving RSV immunoprophylaxis during the 2014 to 2015 RSV season.
Study Design This is a noninterventional, observational, cohort study.
Results A total of 702 infants were hospitalized with community-acquired RSV disease, of whom an estimated 42% were admitted to the intensive care unit (ICU) and 20% required invasive mechanical ventilation (IMV). Earlier gestational age and younger chronologic age were associated with an increased frequency of RSV-confirmed hospitalization (RSVH), ICU admission, and IMV. Among infants 29 to 32 wGA and < 3 months of age, 68% required ICU admission and 44% required IMV. One death occurred of an infant 29 wGA. Among the 212 infants enrolled for in-depth analysis of health care resource utilization, mean and median RSVH charges were $55,551 and $27,461, respectively, which varied by intensity of care required. Outpatient visits were common, with 63% and 62% of infants requiring visits before and within 1 month following the RSVH, respectively.
Preterm infants 29 to 35 wGA are at high risk for severe RSV disease, which imposes a substantial health burden, particularly in the first months of life.