A CASE OF RENOVASCULAR HYPERTENSION WITH MARKED POLYURIA AFTER PERCUTANEOUS TRANSLUMINAL RENAL ANGIOPLASTY

A 43-year-old female patient with hypertension was diagnosed as having one-kidney renovascular hypertension with dysfunction of the contrala teral kidney, and percutaneous transluminal renal angioplasty was carr ied out. Marked polyuria was observed during the 2- to 72-hour postope rative period. During the 12- to 18-hour period of polyuria, the urine volume was 8.9 liters/6 h, which was 62% of the glomerular filtration , and was accompanied by high fractional excretion of sodium and of po tassium and a high urine beta(2)-microglobulin level. The mechanism of polyuria in this case is discussed.