Hyperaldosteronism secondary to renal agenesis: An unusual cause for hypertension in pregnancy.

Literature with regards to pregnancy related outcomes in persons with the presence of a solitary kidney of any cause is scarce. Most of the available information has been extrapolated from persons who have been renal donors. Unilateral renal agenesis affects 1 in 1500 people and can present with resistant hypertension. When a woman with a solitary kidney presents in pregnancy, it may be both a challenging diagnostic and therapeutic problem. Eplerenone, a selective aldosterone blocker has been prescribed for resistant hypertension and in the presence of pregnancy, been useful in persons with primary hyperaldosteronism and resistant hypertension due to obstructive sleep apnoea. We describe the use of Eplerenone in a patient with resistant hypertension in pregnancy, due to secondary hyperaldosteronism precipitated by renal agenesis.