title: Birth weight and prematurity in infants with single ventricle physiology: pediatric heart network infant single ventricle trial screened population.
abstract: OBJECTIVE
  Although congenital heart disease is associated with low birth weight and prematurity, there is little information about these birth outcomes in infants with single ventricle physiology. We describe the birth outcomes (i.e., gestational age and birth weight) in neonates with single ventricle physiology screened for enrollment in the Pediatric Heart Network's Infant Single Ventricle Trial, compare these outcomes with US norms, and examine the association of birth outcomes with anatomic diagnosis and race.
  
  
  METHODS
  All neonates with single ventricle physiology presenting to Infant Single Ventricle Trial centers were screened for enrollment. Demographic data and anatomic diagnoses were obtained from medical records.
  
  
  RESULTS
  A total of 1245 neonates with single ventricle physiology were screened at 10 centers (63 to 266 per center). Diagnoses included hypoplastic left heart syndrome in 49%, unbalanced atrioventricular septal defect in 12%, and tricuspid atresia in 9%. Preterm birth occurred in 16% of neonates with single ventricle physiology vs. 12% in normal neonates (P < .001), low birth weight (<2.5 kg) in 18% vs. 8% in normals (P < .001), and small for gestational age (<10th percentile by definition) in 22% vs. 10% in normals (P < .001). A genetic syndrome was reported in 8%. The percentage of preterm birth, low birth weight, and small for gestational age was similar between screened neonates with and without hypoplastic left heart syndrome.
  
  
  CONCLUSIONS
  In this large, contemporary cohort of neonates with single ventricle physiology, rates of preterm birth, low birth weight, and small for gestational age were higher than in the general population, but similar between screened neonates with and without hypoplastic left heart syndrome.
authors.affiliation: Department of Pediatrics, University of Utah, Salt Lake City, Utah, USA. richard.williams@imail.org
authors.forename: Richard V
authors.initials: RV
authors.lastname: Williams
authors.forename: Chitra
authors.initials: C
authors.lastname: Ravishankar
authors.forename: Victor
authors.initials: V
authors.lastname: Zak
authors.forename: Frank
authors.initials: F
authors.lastname: Evans
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Atz
authors.forename: William L
authors.initials: WL
authors.lastname: Border
authors.forename: Jami
authors.initials: J
authors.lastname: Levine
authors.forename: Jennifer S
authors.initials: JS
authors.lastname: Li
authors.forename: Lynn
authors.initials: L
authors.lastname: Mahony
authors.forename: Seema
authors.initials: S
authors.lastname: Mital
authors.forename: Gail D
authors.initials: GD
authors.lastname: Pearson
authors.forename: Ashwin
authors.initials: A
authors.lastname: Prakash
authors.forename: Daphne T
authors.initials: DT
authors.lastname: Hsu
mesh_terms: D001724:Birth Weight; D005260:Female; D005865:Gestational Age; D006330:Heart Defects, Congenital / Q000150:complications*; D006352:Heart Ventricles / Q000002:abnormalities*; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007236:Infant, Small for Gestational Age; D008297:Male; D016032:Randomized Controlled Trials as Topic
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