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Scleroderma renal crisis.

Abstract

Abrupt onset of severe uncontrolled hypertension and rapidly progressive oliguric renal failure characterizes scleroderma renal crisis. The etiology is unclear, but very high renin levels are present. While scleroderma is more common in women and whites, there is no difference in the prevalence of scleroderma renal crisis by gender. However, there appears to be a higher prevalence of scleroderma renal crisis among African Americans than whites. Survival was dismal prior to the introduction of the vigorous treatment of hypertension and use of converting-enzyme inhibitors. However, most data on the benefit of these medications are derived from uncontrolled and unblinded studies. Prospective, randomized controlled trials are needed to assess the role of angiotensin receptor blockers. Prevention trials could define the role of various drugs in decreasing the rate of scleroderma renal crisis.

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BibTeXRIS

L Michael Prisant, Don H Loebl, Laura L Mulloy. Scleroderma renal crisis.. https://doi.org/10.1111/j.1524-6175.2003.01928.x

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Angiotensin-Converting Enzyme Inhibitors↗

Renin-induced hypertension in Wilms tumor patients.

BACKGROUND: Since the report that hypertension associated with Wilms tumor (WT) may be renin-induced, no larger series than 13 patients have been published. Nevertheless, angiotensin converting enzyme (ACE) inhibitors have become treatment of choice for hypertension in WT patients. The purpose of this study was to investigate the correlation between plasma renin levels and blood pressure in a larger cohort of WT patients. PROCEDURE: In this retrospective, single-center study, data on blood pressure and plasma renin were analyzed in 86 WT patients treated according to the consecutive SIOP protocols 6, 9, 93-01, and 2001. RESULTS: At diagnosis, 47 WT patients suffered from hypertension (55%). In 31 of these patients plasma renin levels were analyzed; increased plasma renin levels were found in 25/31 patients (81%). In contrast, normal plasma renin levels were measured in 8/13 of the patients with a normal blood pressure (P = 0.012). Twenty-eight children received antihypertensive treatment before surgery, in 25 of them blood pressure normalized before surgery. Blood pressure was normal directly after surgery in all patients but 4, in whom blood pressure recovered to normal within a few weeks. CONCLUSIONS: This retrospective study shows that hypertension in WT patients is associated with elevated plasma renin levels, indicating that ACE inhibitors may be a good therapeutic option in at least a subset of WT patients with hypertension before nephrectomy.

Angiotensin-Converting Enzyme Inhibitors↗