Renin activity in renal vein plasma was measured in six normal subjects and 59 hypertensive patients. The average renin value in renal venous plasma in normal subjects was the same as that found in patients with essential hypertension and renal parenchymal hypertension. Renal venous renin levels were markedly elevated in patients with significant renal lesions who were improved by surgery but w...

Renin activity in renal vein plasma was measured in six normal subjects and 59 hypertensive patients. The average renin value in renal venous plasma in normal subjects was the same as that found in patients with essential hypertension and renal parenchymal hypertension. Renal venous renin levels were markedly elevated in patients with significant renal lesions who were improved by surgery but w...

Renin activity in renal vein plasma was measured in six normal subjects and 59 hypertensive patients. The average renin value in renal venous plasma in normal subjects was the same as that found in patients with essential hypertension and renal parenchymal hypertension. Renal venous renin levels were markedly elevated in patients with significant renal lesions who were improved by surgery but w...

A 24-year-old man whose clinical features were suggestive of renovascular hypertension was referred for captopril renal scintigraphy. Captopril renal scintigraphy was positive for renovascular hypertension only when the left kidney was analyzed in 2 separate regions. Angiography confirmed severe stenosis (90%) in the upper branch of the left renal artery.

OBJECTIVE To determine whether active renin and endothelin levels in venous plasma differ between patients with renal artery stenosis and patients with primary hypertension. Among the patients with renal artery stenosis we also compared active renin and endothelin levels between subjects who had been cured or whose blood pressure had improved after treatment of the stenosis and those without a ...

The purpose of this study was to investigate whether local mechanisms of blood flow autoregulation mediate vasoconstriction during the early development of renal hypertension. Anesthetized rats were instrumented with Doppler flow probes on the celiac (CA), superior mesenteric (SMA), and renal arteries to measure flow velocity in these vessels. Acute two-kidney, one clip renal hypertension was p...

OBJECTIVES many renal artery aneurysms (RAA) are diagnosed incidentally in the course of investigations for hypertension and their management is controversial. AIM to review the results of renal artery reconstruction for RAA. METHODS between January 1978 and December 1998 111 RAR were performed in 81 kidneys in 71 patients. RESULTS fifty-nine patients were hypertensive, three had a creati...

Introduction Multiple renal arteries are unilateral in approximately 30% of patients and bilateral in approximately 10% [1, 2]. Aberrant arteries usually arise from the aorta or iliac arteries anywhere from the level of T11 to the level of L4. In rare cases, they can arise from the lower thoracic aorta or from lumbar or mesenteric arteries [1]. Aberrant renal artery originating from aortic bifu...

Hypertension has a long list of primary as well as secondary causes. Fibromuscular dysplasia is amongst the rare secon­ dary causes of hypertension. Intimal fibroplasia as a pathologic cause occurs in less than 10% of patients with fibromuscular dysplasia. We report a rare case of hypertension due to intimal fibromuscular dysplasia of renal artery, treated successfully with renal angioplasty an...

A 26-year-old female diabetic patient developed hypertensive encephalopathy with gross neurological abnormalities complicating renal artery stenosis of her transplant kidney. The elevated blood pressure was unresponsive to medical treatment. Surgical correction of the stenoses in the renal artery cured the hypertension and renal failure and led to the patient's complete recovery.