title: Prenatal diagnosis and perinatal aspects of abdominal wall defects.
abstract: We retrospectively reviewed 27 cases of omphalocele and 15 cases of gastroschisis occurring among 62, 572 deliveries between 1987 and 1994. All cases had undergone prenatal sonographic examinations at a mean gestational age of 28 weeks. In cases of omphalocele, 59.3% (16/27) of fetuses were associated with multiple malformations and 16% (4/25) had chromosomal abnormalities. Among the 4 cases with an abnormal karyotype, three cases were associated with extracorporeal livers and two cases were associated with umbilical cord cysts. Prenatal ultrasound examinations during the second and third trimesters were able to detect 66.7% (18/27) of the cases of omphalocele and 66.7% (10/15) of the cases of gastroschisis. Failure in correctly diagnosing abdominal wall defects by prenatal ultrasound occurred mostly in cases associated with small defects, ruptured omphalocele, multiple fetal anomalies, intrauterine fetal death, twin pregnancies, or cases referred in late gestation. A comparison of perinatal data between omphalocele and gastroschisis reveals fetuses with omphalocele carry higher risks of associated malformations, chromosomal abnormalities, prematurity, and neonatal death. Although fetuses with gastroschisis have higher incidences of oligohydramnios and small for gestational age, the fetal prognosis after pediatric surgery is good.
authors.affiliation: Departments of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan, Republic of China.
authors.forename: C P
authors.initials: CP
authors.lastname: Chen
authors.forename: F F
authors.initials: FF
authors.lastname: Liu
authors.forename: S W
authors.initials: SW
authors.lastname: Jan
authors.forename: J C
authors.initials: JC
authors.lastname: Sheu
authors.forename: S H
authors.initials: SH
authors.lastname: Huang
authors.forename: C C
authors.initials: CC
authors.lastname: Lan
mesh_terms: D000009:Abdominal Muscles / Q000002:abnormalities*; D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging* / Q000453:epidemiology; D000328:Adult; D002869:Chromosome Aberrations / Q000000981:diagnostic imaging / Q000453:epidemiology; D025063:Chromosome Disorders; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging* / Q000453:epidemiology; D006554:Hernia, Umbilical / Q000000981:diagnostic imaging* / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age; D008297:Male; D011247:Pregnancy; D012189:Retrospective Studies; D012307:Risk Factors; D016216:Ultrasonography, Prenatal; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins