Maternal Bartter's syndrome in pregnancy treated by amiloride.

BACKGROUND: Bartter's syndrome is a rare condition during pregnancy. The prenatal management is difficult to maintain normal potassium serum levels. CASE: We describe a 26-year-old woman with Bartter's syndrome. During pregnancy, she required increasing potassium and magnesium supplementations. Amiloride, a sparing potassium diuretic, was continued. She delivered an unaffected girl at term. CONCLUSION: When Bartter's syndrome is associated with pregnancy, the management must be careful. Amiloride can be used to support potassium supplementation.