Biomaterial Database

Antenatal fetal surveillance in pregnancies complicated by fetal gastroschisis. 2008

Craig V Towers, and Margaret H Carr

Division of Maternal-Fetal Medicine, Long Beach Memorial Women's Hospital, Long Beach, CA, USA. drtowers@rbcpress.com

OBJECTIVE The purpose of this study was to determine if antenatal fetal surveillance should be considered in pregnancies complicated by fetal gastroschisis, and if so, what gestational age should testing begin. METHODS During an 18-year period, all pregnancies delivered of a newborn that had gastroschisis were identified. Numerous data parameters were collected, including gestational age at delivery, birthweight, indication for delivery, antenatal testing results if performed, and neonatal outcome. Fetal compromise was defined as stillbirth or moderate to severe arterial cord blood gas acidosis at the time of delivery (pH < 7.10). RESULTS During the study period, 84 pregnancies complicated by fetal gastroschisis were delivered from 117,564 gestations. Antenatal testing was performed in 58 cases (69%). Of the 26 (31%) without antenatal testing, 17 had an antenatal diagnosis of gastroschisis and in 9, the diagnosis was made on the day of delivery. In the 17 with an antenatal diagnosis, there were 2 stillbirths (29(4/7) and 31(3/7) weeks' gestation) and 1 was delivered with a moderate to severe arterial cord blood gas acidosis at 29(5/7) weeks' gestation. An additional case of moderate to severe arterial cord blood gas acidosis occurred in the 9 cases where the diagnosis was made on the day of delivery. Of the 58 pregnancies with antenatal surveillance, there were no stillbirths and no cases with a moderate to severe arterial cord blood gas acidosis. Of these 58 cases, 22 (38%) were delivered based on an abnormal testing result. Of the 84 total cases, 32 (38%) had birthweights < 10th percentile, and of these, 16 (19%) had birthweights < 3rd percentile. CONCLUSIONS Based on these data, antenatal fetal surveillance may be warranted in pregnancies complicated by fetal gastroschisis beginning at a gestational age of 28 to 29 weeks. Fetal testing between the thresholds of viability up to 28 weeks' gestation would be controversial.

UI	MeSH Term	Description	Entries
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011248	Pregnancy Complications	Conditions or pathological processes associated with pregnancy. They can occur during or after pregnancy, and range from minor discomforts to serious diseases that require medical interventions. They include diseases in pregnant females, and pregnancies in females with diseases.	Adverse Birth Outcomes,Complications, Pregnancy,Adverse Birth Outcome,Birth Outcome, Adverse,Complication, Pregnancy,Outcome, Adverse Birth,Pregnancy Complication
D011256	Pregnancy Outcome	Results of conception and ensuing pregnancy, including LIVE BIRTH; STILLBIRTH; or SPONTANEOUS ABORTION. The outcome may follow natural or artificial insemination or any of the various ASSISTED REPRODUCTIVE TECHNIQUES, such as EMBRYO TRANSFER or FERTILIZATION IN VITRO.	Outcome, Pregnancy,Outcomes, Pregnancy,Pregnancy Outcomes
D005260	Female		Females
D005865	Gestational Age	The age of the conceptus, beginning from the time of FERTILIZATION. In clinical obstetrics, the gestational age is often estimated from the onset of the last MENSTRUATION which is about 2 weeks before OVULATION and fertilization. It is also estimated to begin from fertilization, estrus, coitus, or artificial insemination.	Embryologic Age,Fetal Maturity, Chronologic,Chronologic Fetal Maturity,Fetal Age,Maturity, Chronologic Fetal,Age, Embryologic,Age, Fetal,Age, Gestational,Ages, Embryologic,Ages, Fetal,Ages, Gestational,Embryologic Ages,Fetal Ages,Gestational Ages
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000649	Amniocentesis	Percutaneous transabdominal puncture of the uterus during pregnancy to obtain amniotic fluid. It is commonly used for fetal karyotype determination in order to diagnose abnormal fetal conditions.	Amniocenteses
D016216	Ultrasonography, Prenatal	The visualization of tissues during pregnancy through recording of the echoes of ultrasonic waves directed into the body. The procedure may be applied with reference to the mother or the fetus and with reference to organs or the detection of maternal or fetal disease.	Fetal Ultrasonography,Prenatal Diagnosis, Ultrasonic,Ultrasonography, Fetal,Diagnosis, Prenatal Ultrasonic,Diagnosis, Ultrasonic Prenatal,Prenatal Ultrasonic Diagnosis,Prenatal Ultrasonography,Ultrasonic Diagnosis, Prenatal,Ultrasonic Prenatal Diagnosis,Diagnoses, Prenatal Ultrasonic,Diagnoses, Ultrasonic Prenatal,Prenatal Diagnoses, Ultrasonic,Prenatal Ultrasonic Diagnoses,Ultrasonic Diagnoses, Prenatal,Ultrasonic Prenatal Diagnoses
D018570	Risk Assessment	The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988)	Assessment, Risk,Benefit-Risk Assessment,Risk Analysis,Risk-Benefit Assessment,Health Risk Assessment,Risks and Benefits,Analysis, Risk,Assessment, Benefit-Risk,Assessment, Health Risk,Assessment, Risk-Benefit,Benefit Risk Assessment,Benefit-Risk Assessments,Benefits and Risks,Health Risk Assessments,Risk Analyses,Risk Assessment, Health,Risk Assessments,Risk Benefit Assessment,Risk-Benefit Assessments
D020139	Gastroschisis	A congenital defect with major fissure in the ABDOMINAL WALL lateral to, but not at, the UMBILICUS. This results in the extrusion of VISCERA. Unlike OMPHALOCELE, herniated structures in gastroschisis are not covered by a sac or PERITONEUM.	Congenital Fissure of the Abdominal Cavity,Gastroschises

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