Cateterismo venoso suprarrenal: indicaciones y limitaciones a propósito de dos casos clínicos / Adrenal venous catheterization in primary hyperaldosteronism: report of two cases

ABSTRACT

Primary hyperaldosteronism is the most prevalent cause of secondary hypertension. Approximately 10 percentof hypertensive patients may be carriers of this condition. Idiopathic bilateral adrenal hyperplasia (HSBI) and aldosterone producing adenoma (APA) are the most common causes of hyperaldosteronism. To diagnose these conditions, adrenal venous catheterization (CVS) is the test of choice to evaluate functional imagingfindings. The aim of this communication is to demonstrate the usefulness of the CVS in the etiological diagnosis of this condition. We report two patients with primary hyperaldosteronism who were subjected to CVS. A male in whom and abdominal CAT scan showed bilateral adrenal growth, that was severest atthe left side. CVS concluded hyper secretion of aldosterone on the right side, but without suppression of the contralateral gland, corresponding to a bilateral adrenal hyperplasia. A 43 years old male in whom an abdominal CAT scan showed a right adrenal tumor measuring 11 x 5 mm. CVS showed a right lateralization of aldosterone secretion, with suppression of the contralateral gland. The conclusion was the presence of an aldosteronoma, which was excised by laparoscopy with excellent clinical outcome.