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Observational Study
. 2020 Mar;37(4):421-429.
doi: 10.1055/s-0039-1681014. Epub 2019 Apr 16.

SENTINEL1: Two-Season Study of Respiratory Syncytial Virus Hospitalizations among U.S. Infants Born at 29 to 35 Weeks' Gestational Age Not Receiving Immunoprophylaxis

Evan J Anderson  1 , John P DeVincenzo  2 , Eric A F Simões  3 , Leonard R Krilov  4 , Michael L Forbes  5 , Pia S Pannaraj  6 , Claudia M Espinosa  7 , Robert C Welliver  8 , Leslie I Wolkoff  9 , Ram Yogev  10 , Paul A Checchia  11 , Joseph B Domachowske  12 , Natasha Halasa  13 , Scott J McBride  14 , Veena R Kumar  15 , Kimmie K McLaurin  15 , Christopher P Rizzo  15 , Christopher S Ambrose  15
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Free article
Observational Study

SENTINEL1: Two-Season Study of Respiratory Syncytial Virus Hospitalizations among U.S. Infants Born at 29 to 35 Weeks' Gestational Age Not Receiving Immunoprophylaxis

Evan J Anderson et al. Am J Perinatol. 2020 Mar.
Free article

Abstract

Objective: The SENTINEL1 observational study characterized confirmed respiratory syncytial virus hospitalizations (RSVH) among U.S. preterm infants born at 29 to 35 weeks' gestational age (wGA) not receiving respiratory syncytial virus (RSV) immunoprophylaxis (IP) during the 2014 to 2015 and 2015 to 2016 RSV seasons.

Study design: All laboratory-confirmed RSVH at participating sites during the 2014 to 2015 and 2015 to 2016 RSV seasons (October 1-April 30) lasting ≥24 hours among preterm infants 29 to 35 wGA and aged <12 months who did not receive RSV IP within 35 days before onset of symptoms were identified and characterized.

Results: Results were similar across the two seasons. Among infants with community-acquired RSVH (N = 1,378), 45% were admitted to the intensive care unit (ICU) and 19% required invasive mechanical ventilation (IMV). There were two deaths. Infants aged <6 months accounted for 78% of RSVH observed, 84% of ICU admissions, and 91% requiring IMV. Among infants who were discharged from their birth hospitalization during the RSV season, 82% of RSVH occurred within 60 days of birth hospitalization discharge.

Conclusion: Among U.S. preterm infants 29 to 35 wGA not receiving RSV IP, RSVH are often severe with almost one-half requiring ICU admission and about one in five needing IMV.

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Conflict of interest statement

E.J.A., J.P.D., E.A.F.S., L.R.K., M.L.F., P.S.P., C.M.E., R.C.W., L.I.W., R.Y., P.A.C., J.B.D., and N.H. are independent investigators who have received research support from AstraZeneca/MedImmune. J.P.D., E.A.F.S., L.R.K., and M.L.F. also received travel support from AstraZeneca/MedImmune to present the results of this or other research studies at scientific meetings. J.P.D., M.L.F., and P.S.P. have served on the speakers’ bureau for AstraZeneca/MedImmune. E.J.A., E.A.F.S., and J.P.D. have served as consultants to AbbVie; P.A.C. has received research support from AbbVie. S.J.M. is an independent statistical consultant to AstraZeneca. K.K.M. and C.S.A. are employees of AstraZeneca and hold stock. V.R.K. and C.P.R. were employees of AstraZeneca at the time this research was conducted. C.P.R. is a current employee of Sobi Inc.

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