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Differences in short-term neonatal outcomes between discordant twins
Journal article   Peer reviewed

Differences in short-term neonatal outcomes between discordant twins

Ursula S Nawab, Jay S Greenspan, Sharon Kirkby, Jennifer F Culhane and Michael Kornhauser
Advances in neonatal care, v 8(6), pp 334-342
01 Dec 2008
DOI: https://doi.org/10.1097/01.ANC.0000342765.71864.61
PMID: 19060578

Abstract

PURPOSETo evaluate short-term outcomes associated with discordant twin pairs admitted to the NICU.DESIGNA retrospective descriptive study comparing discordant twin pairs.SUBJECTSThree hundred eighty-four discordant twin pairs were included. Mean gestational age of the twin pairs was 32.6 weeks (range, 24-39).METHODSThe ParadigmHealth database was queried for all twin admissions from January 2001 to June 2004 admitted to 453 NICUs across the United States. Discordance was calculated for each twin set as defined as greater than 20% difference in birth weight. Exclusion criteria were death of a twin, congenital anomalies, or extracorporeal life support.MAIN OUTCOME MEASURESDemographics, respiratory needs, feeding characteristics, complications, and discharge needs.RESULTSA total of 384 discordant twin pairs met inclusion criteria. The larger twins required more ventilation/continuous positive airway pressure (55% vs 44%, P < .01) and/or oxygen therapy (50% vs 41%, P = .02) compared with smaller twins. Smaller twins reached full oral (PO) feeds an average of 0.6 weeks later than larger twins (P < .0001) but had more weight gain per day. Smaller twins transitioned to an open crib at lower weights but at slightly greater age. No differences were noted with necrotizing enterocolitis or apnea. Smaller twins had increased nosocomial infections. Mean length of stay was shorter (P = .0036) in the larger twin group. Only 33% of the twin pairs were discharged on the same day.CONCLUSIONSLarger twins had more acute respiratory issues but achieved certain milestones more rapidly with fewer complications, thus leading to earlier discharge compared with their smaller twin counterparts.

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