Pemphigoid gestationis: report of a case with umbilical artery Doppler assessment.

BACKGROUND

Pemphigoid gestationis is a rare autoimmune disorder of pregnancy characterized clinically by a pruritic, papular rash and in some cases intrauterine growth restriction and premature delivery. The growth disorder is secondary to antibody deposition in the placental bed, with resultant placental insufficiency. The appropriate fetal assessment required during these gestations remains uncertain. The use of serial Doppler velocimetry of the umbilical arteries has not been reported to date in this disorder.

CASE

A woman had pemphigoid and progressively decreasing umbilical artery end-diastolic flow over a period of weeks without documented fetal growth restriction. Delivery was finally prompted by reversal of end-diastolic flow.

CONCLUSION

We suggest that parturients with this condition undergo frequent umbilical artery Doppler studies to document end-diastolic velocity even without the ultrasound finding of intrauterine growth restriction.