Pregnancy after jejunoileal bypass and the SGA infant.

Twenty-one pregnancies (19 patients) were studied, noting the effects of previous jejunoileal bypass on perinatal sequelae. A larger percentage of SGA infants (20%) were delivered to mothers after bypass surgery. Low birthweight appears to be related to maternal hypoalbuminemia. Twelve of thirteen (92%) infants born to multiparous patients after surgery had term birthweights less than any previous term infant's birthweight prior to the procedure. Postponement of pregnancy after ileal shunt until all metabolic parameters have returned to normal (up to 36 months) is advised.