1/366. Solitary renal cyst, hypertension and renin.Solitary renal cysts may cause renin hypersecretion with associated hypertension by compressing surrounding tissue and by distortion of renal vessels. Selective measurements of plasma renin activity in the renal veins can predict the antihypertensive effect of decompression. An illustrative case is presented and its significance is discussed.- - - - - - - - - - ranking = 1keywords = hypertension (Clic here for more details about this article) |
2/366. effect of kidney resection on blood pressure and plasma renin activity. Case report and clinical study.Acute transient hypertension following kidney trauma occurred in a 17-year-old youth due to increased activity of the renin/angiotensin system. The systemic blood pressure and plasma renin activity was also studied following elective kidney resection. In one group of patients the operation was performed with clamping of the renal vessels; in the other no clamping was performed. Only minimal changes in blood pressure and plasma renin activity was found in both groups.- - - - - - - - - - ranking = 0.2keywords = hypertension (Clic here for more details about this article) |
3/366. Angioplasic surgery for renal artery aneurysm in pediatric hypertension.Aneurysmectomy and renal angioplasty were performed on a 14-year-old Japanese male and the blood pressure was within normal values 3 years after this surgery. Measurement of renal blood flow was facilitated by using 133Xe washout technique. This incidence is the eighth such case to be reported from japan.- - - - - - - - - - ranking = 0.8keywords = hypertension (Clic here for more details about this article) |
4/366. The Ask-Upmark kidney: a form of ascending pyelonephritis?The case is presented of a young girl with recurrent urinary tract infection and vesico-ureteric reflux who developed a small scarred kidney and subsequently, hypertension. Pathologically, the renal changes were compatible with those of an Ask-Upmark kidney. The pathogenesis of the Ask-Upmark kidney is discussed. It is postulated that the lesion is not necessarily of congenital origin but may well be related to infection and intrarenal reflux, it is concluded that long-term follow-up of a young patient with a scarred kidney is indicated.- - - - - - - - - - ranking = 0.2keywords = hypertension (Clic here for more details about this article) |
5/366. Ask-Upmark kidney associated with renal and extrarenal arterial aneurysms.Reports of Ask-Upmark kidney, initially described as a congenital defect in renal development, are uncommon. We report a case with the features of bilateral asymmetrical segmental atrophy in a patient with childhood-onset hypertension. As an adult, she developed cerebral, celiac, and renal artery aneurysms. She underwent successful clipping of the cerebral aneurysm and renal artery repair with preservation of renal function. Novel radiologic techniques make possible the noninvasive diagnosis of segmental atrophy and its complications.- - - - - - - - - - ranking = 0.2keywords = hypertension (Clic here for more details about this article) |
6/366. Measurement of plasma renin concentration and angiotensin ii in peripheral and renal venous plasma in the management of renovascular hypertension.Athough in general, measurement of renal vein renin appears to give a good prediction as to the subsequent response to surgery, its main value lies in its ability to reflect changes in renal plasma flow; true changes in renin secretion rate being much more difficult to detect. Although it is a little early to say how much information can be derived from saralasin infusions, caution must be exercised in necessarily assuming that the test accurately reflects subsequent surgical response.- - - - - - - - - - ranking = 2.1046175424434keywords = renovascular, hypertension (Clic here for more details about this article) |
7/366. Interventions in renal scintirenography.Nuclear nephrourology continues to develop and expand on traditional provocative physiological maneuvers, such as diuretic and captopril renography. In addition, newer interventions are conceived, such as aspirin renography, which test new and fascinating aspects of renal functional reserve. Since the last review of this topic in 1991, nephrourologic nuclear medicine has made considerable progress in diverse ways. captopril and diuresis renography have made strides in establishing greater consensus of interpretation and procedure. Commonplace aspirin, the ubiquitous wonder drug, has revealed an unexpected role in renography by way of its inhibition of prostaglandin E2. Finally, further investigations of exercise renography in essential hypertension have deepened the plausibility of a renal role in the etiology of perhaps 50% of affected individuals.- - - - - - - - - - ranking = 0.2keywords = hypertension (Clic here for more details about this article) |
8/366. angioedema due to losartan.OBJECTIVE: To report a case of angioedema associated with the angiotensin ii receptor antagonist losartan. CASE SUMMARY: A 62-year-old African-American woman was admitted to the hospital for acute renal failure and uncontrolled hypertension. After attempting blood pressure control with three different agents, captopril was combined with metoprolol. The patient noted swelling of the lips combined with shortness of breath after four days of captopril. losartan was substituted for captopril, which then produced similar swelling of the lips (without shortness of breath) after only one dose. These symptoms resolved after discontinuation of losartan and administration of antihistamines. DISCUSSION: losartan, like other angiotensin ii receptor antagonists, blocks the action of angiotensin ii at the receptor level. Five published case reports involved patients with a prior history of intolerance to the angiotensin-converting enzyme inhibitors. Two published case reports of similar reactions also occurred in patients with renal compromise. The mechanism for this reaction from losartan is not known, but may not be due to bradykinin excess. CONCLUSIONS: Clinicians should be aware that angiotensin receptor antagonists may not be safe alternatives in patients who have a history of angioedema secondary to the angiotensin-converting enzyme inhibitors.- - - - - - - - - - ranking = 0.2keywords = hypertension (Clic here for more details about this article) |
9/366. Rapidly resorptive exudative retinal detachment in a patient with renogenic hypertension: case report.We present an 18-year-old woman who developed rapidly resorptive exudative retinal detachment (ERD) due to chronic renal failure and renogenic hypertension. In July 1998, the patient came to our clinic because of a 2-month-history of progressively deteriorating visual acuity. Initially examination of the fundi revealed typical hypertensive retinopathy. Two weeks later, the patient was admitted due to hypertension and consulted our ophthalmic department again. In addition to hypertensive retinopathy, the fundi showed high bullous ERD, involving the temporal retinas in both eyes. Intensive medical therapy was begun, including blood pressure control and maintenance of body fluid and electrolyte balance, resulting in almost complete regression of retinal detachment within two days. The visual acuity improved during the following 2 weeks. The clinical features and treatment response in this rare case indicate that multiple factors, including fluids overload, hypertension, and possibly renal failure, contributed to the development of ERD. blood pressure control and the balance of fluids are important in patients with renal failure, and may help to prevent the occurrence of ERD.- - - - - - - - - - ranking = 1.4keywords = hypertension (Clic here for more details about this article) |
10/366. Renal cell carcinoma presenting as a pseudo-carcinoid tumour.A 38-year-old woman presented with hypertension and a renal cell carcinoma. Raised urinary 5-hydroxyindoleacetic acid values >300 micromol/l, predictive of carcinoid tumour, were found during the perioperative period. The values returned towards normal 2 weeks post-surgery. Immunohistochemical examination of the renal cell carcinoma with neuroendocrine markers was negative. Despite a diligent search, no carcinoid tumour could be identified and the patient was well 4 years later. There was no dietary or drug explanation for this pseudocarcinoid.- - - - - - - - - - ranking = 0.2keywords = hypertension (Clic here for more details about this article) |
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