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Spontaneous renal arteriovenous fistula and arterial hypertension--conservative treatment and healing.

A case is reported of idiopathic renal arteriovenous fistula in a young adult suffering from arterial hypertension. It was treated by conservative surgery with endo-aneurysmorrhaphy and extrasinusal clamping of the artery supplying the fistula. The post-operative course was uneventful. Arterial pressure returned to normal after 30 months. Diagnosis, therapy and the relationship between hypertension and fistula are discussed.