Journal article
Outcomes of Infants Born at 21 Weeks' Gestational Age
JAMA network open, Vol.8(12), e2548211
12/01/2025
DOI: 10.1001/jamanetworkopen.2025.48211
PMCID: PMC12701515
PMID: 41385227
Abstract
Advances in medical care and clinician experience have lowered the gestational age at which resuscitation is considered for extremely premature infants. Some centers now offer trials of resuscitation at 21 weeks' gestational age. Minimal data are available to guide this practice.
To describe morbidities and outcomes of resuscitated infants at 21 weeks' gestational age.
This retrospective case series included all infants born at 21 weeks' gestational age in a single-center level IV academic neonatal intensive care unit (NICU) at the University of Iowa from January 1, 2020, through February 28, 2025. Data were analyzed from April 1 to August 15, 2025.
Extremely preterm birth at a gestational age of 21 weeks.
Demographic characteristics, therapies, morbidities, and test results were collected throughout hospitalizations from electronic medical records for extremely premature infants who received any attempted resuscitation and their mothers, including hourly cardiorespiratory data for the first 72 hours for infants admitted to the NICU. Postdischarge outcomes through the end of the study period were collected as available.
Twenty-two infants were born alive at 21 weeks' gestational age during the study period, and an additional 230 were stillborn. Resuscitation was attempted in 17 (77%) of the infants born alive; of these, 6 (35%) survived to discharge from the NICU (earliest in 2021; youngest, 21 weeks, 0 days; birth weight, 285-430 g), 1 (6%) remained hospitalized, and 10 (59%) died. All births were inborn vaginal deliveries. Infants who survived (including the infant who remained hospitalized) were less likely part of a multiple gestation compared with those who did not (1 of 7 [14%] vs 6 of 10 [60%]) and more likely exposed to a complete course of antenatal corticosteroids (3 of 7 [43%] vs 0 of 10). Most of the infants who survived had early cardiorespiratory instability treated with vasoactive medications and/or inhaled nitric oxide (5 [71%]). Three (43%) had no or grade 1 intraventricular hemorrhage (IVH), 2 (29%) had grade 2 IVH, and 2 had severe (grade 3) IVH (29%); none required neurosurgical intervention. The 6 infants who were discharged received low-flow supplemental oxygen, and none required tracheostomy. Rates of resuscitation increased during the study period.
In this case series of infants born alive at 21 weeks' gestational age, selective resuscitation resulted in 35% survival to discharge, in some cases with minimal morbidities. These descriptive data may prompt prospective study and reporting at this gestational age. Long-term outcome data are needed.
Details
- Title: Subtitle
- Outcomes of Infants Born at 21 Weeks' Gestational Age
- Creators
- Rachael M Hyland - University of IowaHatice Dilara Mat - University of IowaTimothy J Boly - University of IowaBrady J Thomas - University of Iowa, NeonatologyAmy H Stanford - University of Iowa, NeonatologyHeidi M Harmon - University of IowaJennifer R Bermick - University of IowaRebecca Chuffo Davila - University of IowaTarah T Colaizy - University of IowaJohn M Dagle - University of IowaJonathan M Klein - University of IowaAndrea L Greiner - University of IowaEdward F Bell - University of IowaPatrick J McNamara - University of IowaUniversity of Iowa Neonatology Program
- Resource Type
- Journal article
- Publication Details
- JAMA network open, Vol.8(12), e2548211
- DOI
- 10.1001/jamanetworkopen.2025.48211
- PMID
- 41385227
- PMCID
- PMC12701515
- NLM abbreviation
- JAMA Netw Open
- ISSN
- 2574-3805
- eISSN
- 2574-3805
- Publisher
- American Medical Association
- Language
- English
- Date published
- 12/01/2025
- Academic Unit
- Microbiology and Immunology; Stead Family Department of Pediatrics; Epidemiology; Obstetrics and Gynecology; Neonatology
- Record Identifier
- 9985090604302771
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