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Antenatal steroid treatment improves neonatal survival, outcomes in extremely preterm neonate: JAMA
USA: Antenatal steroid administration at 21 to 22 weeks of gestation improves survival and reduces complications among extremely preterm infants, according to a study published in JAMA Network Open.
The provision of antenatal steroid therapy to women at risk of preterm delivery, causes the fetal lungs to mature and has been reported to improve survival and reduce complications among infants born from 24 to 34 weeks of pregnancy. However, previous studies of the treatment for infants born between the 22nd and 23rd week — those at greatest risk for death and disability — were inconclusive.
The study was conducted by Sanjay Chawla, M.D., at Central Michigan University, Mount Pleasant, and Wayne State University, Detroit, and colleagues at 17 U.S. research institutions.
Of the mothers of the 431 infants in the study, 110 did not receive the steroid betamethasone, 80 received partial treatment (one dose) and 241 received complete treatment (two doses 24 hours apart).
Of the infants exposed to complete treatment, 53.9% survived until hospital discharge, compared to 37.5% with partial treatment and 35.5% with no treatment. Compared to infants receiving no treatment, infants exposed to full treatment were 1.95 times more likely to survive and 2.74 times more likely to survive without major complications such as severe bleeding in the brain, severe lung disease (bronchopulmonary dysplasia), cysts in the brain, severe inflammation of the intestines (necrotizing enterocolitis) or abnormal blood vessel growth in the retina (retinopathy of prematurity needing treatment).
The study authors concluded that their results provide strong evidence to support giving antenatal steroid therapy to pregnant people at risk for delivery at 22 weeks.
References: Chawla, S. Association of antenatal steroid exposure at 21 to 22 weeks of gestation with neonatal survival and survival without morbidities. JAMA Network Open. 2022. doi:10.1001/jamanetworkopen.2022.33331
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751