title: Pulmonary artery size has prognostic value in low birth weight infants with congenital diaphragmatic hernia.
abstract: OBJECTIVE
  The aim of this study was to examine the relationship between birth weight, pulmonary artery (PA) size, and outcome in congenital diaphragmatic hernia (CDH) to establish if PA size has prognostic value.
  
  
  METHODS
  The subjects for this study were 39 consecutive left-sided CDH patients treated at our institution according to the same protocol from 2002 to 2009. Other CDH patients with concurrent anomalies that eventually caused death or who became symptomatic more than 6 h after birth were excluded. Birth weight was used to create two groups; low birth weight (LBW; birth weight ≤ 2,500 g; n = 15) and normal birth weight (NBW; birth weight >2,500 g; n = 24). Right PA (RPA) and left PA (LPA) were measured by echocardiography (EC) during late pregnancy (fetal; gestational age (GA): 32-34 weeks), and on days 0, and 2 of life and compared.
  
  
  RESULTS
  Mean birth weights were significantly different between the two groups; however, gender, mean GA, and outcome were similar. In LBW survivors, RPA was significantly larger than in non-survivors. PA size was not related to outcome in NBW.
  
  
  CONCLUSIONS
  We are the first to show that RPA size has prognostic value in low birth weight infants with left-sided CDH.
authors.affiliation: Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Takahashi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Koga
authors.forename: Toshitaka
authors.initials: T
authors.lastname: Tanaka
authors.forename: Hiromichi
authors.initials: H
authors.lastname: Shoji
authors.forename: Satoru
authors.initials: S
authors.lastname: Takeda
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Shimizu
authors.forename: Geoffrey J
authors.initials: GJ
authors.lastname: Lane
authors.forename: Atsuyuki
authors.initials: A
authors.lastname: Yamataka
authors.forename: Tadaharu
authors.initials: T
authors.lastname: Okazaki
mesh_terms: D013505:Digestive System Surgical Procedures / Q000379:methods; D004452:Echocardiography / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006548:Hernia, Diaphragmatic / Q000000981:diagnostic imaging* / Q000601:surgery; D065630:Hernias, Diaphragmatic, Congenital; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008297:Male; D011379:Prognosis; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D012189:Retrospective Studies