A review of the significance of gestational diabetes.

One hundred and ninety-six pregnancies complicated by gestational diabetes in a referred private practice over an 18-year period have been reviewed. Initially they were managed as true diabetics and the pregnancies terminated before the 38th week. More recently, pregnancies have been managed on an outpatient basis and allowed to proceed to term, with a higher percentage of vaginal deliveries and no increase in perinatal mortality or morbidity. A high incidence of neonatal jaundice was noted, but no explanation emerged. Differences between true diabetes and gestational diabetes, with particular reference to perinatal mortality are discussed and the good prognosis for the gestational form emphasised. Follow-up suggests that a continuation of the rapport established between physician, obstetrician and patient during pregnancy may be important in delaying or preventing the subsequent onset of diabetes.