Percutaneous Transluminal Revascularization following an Angiotensin Receptor Blocker: Successful Treatment for Flash Pulmonary Edema and Hyponatremic Hypertensive Syndrome.

Either flash pulmonary edema or hyponatremic hypertensive syndrome has been described in renal artery stenosis. However, coexistence of these two disorders has never been previously reported. We describe a patient who presented with flash pulmonary edema and hyponatremic hypertensive syndrome associated with bilateral renal artery disease (one complete occlusion, one highly critical renal artery stenosis, the equivalent of unilateral stenosis of a solitary functioning kidney). His blood pressure, hyponatremia, and symptoms of acute heart failure were much improved by an angiotensin receptor blocker. After the procedure of percutaneous transluminal revascularization, his stenotic kidney function and serum sodium levels were completely restored.