Vascular disruption birth defects and history of prenatal cocaine exposure: a case control study

Fetal Diagnosis and Therapy
R F HumeM I Evans

Abstract

To test the hypothesis that prenatal cocaine exposure is associated with a 3-fold increased risk for vascular disruption among malformations. A retrospective case-control study was based upon >68,000 delivery records at Hutzel Hospital for a 9-year period. Ascertainment was based upon ICD-9 codes for limb defects, abdominal wall defects, and facial clefts. Transverse limb defects and gastroschisis were defined as cases, and nondisruption anomalies served as controls. Statistical analysis for history of maternal cocaine use reported during pregnancy was performed by chi(2) analysis and the odds ratio determined. A total of 190 cases of limb anomalies, abdominal wall defects, and cleft lips were identified after exclusion criteria. Statistical analysis was performed on the 119 cases informative for maternal cocaine use during pregnancy. Seven of 34 vascular disruption cases had cocaine exposure reported versus 12 of 85 other malformations controls. The odds ratio for cocaine exposure and vascular disruption is 1.58 (95% confidence interval = 0.55-4.47). The putative association of prenatal cocaine exposure and vascular disruption birth defects remains unresolved, but the attributable risk is very likely less than the 3-fold odds ...Continue Reading

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Birth defects encompass structural and functional alterations that occur during embryonic or fetal development and are present since birth. The cause may be genetic, environmental or unknown and can result in physical and/or mental impairment. Here is the latest research on birth defects.