Prediction of Renovascular Hypertension Comparison of Clinical Diagnostic Indices

One hundred and six patients were determined to have renovascular hypertension (RVH) out of 3520 patients with hypertension referred by their physicians for a 1-day blood pressure study (1-day BP study) to evaluate the presence of secondary forms of hypertension. The clinical indices (including serum potassium and creatinine concentrations) most likely to predict RVH were analyzed. Patients unlikely to have RVH were those with a diastolic blood pressure (DBP≤ 90 mm Hg (with or without BP medication) with a serum potassium concentration 110 mm Hg, an age of onset of hypertension of 51 – 69 years, or age of onset > 60 years with a DBP ≤ 100 mm Hg. A four- to sixfold increase came with an age of onset > 60 years, serum potassium (with or without BP medication) 2.9-3.3 mEq/ L, or serum potassium 90 mm Hg. A seven- to ninefold increase came with age of onset > 60 years with DBP >110 mm Hg or serum potassium (with or without BP medication) of 2.3-2.8 mEq/L. Am J Hypertens 1988;1:301–304