Adrenal vein sampling

Area of Science:

• Endocrinology
• Interventional Radiology
• Hypertension Management

Background:

• Primary hyperaldosteronism is a common, often underdiagnosed cause of hypertension.
• Aldosterone-secreting adenomas are surgically curable, while bilateral adrenal hyperplasia requires medical management.
• Accurate diagnosis is essential for appropriate patient treatment and outcomes.

Purpose of the Study:

• To review the critical role of adrenal vein sampling in primary hyperaldosteronism.
• To discuss aldosterone physiology and the clinical workup of the condition.
• To highlight the technical and analytical considerations for successful adrenal vein sampling.

Main Methods:

• Adrenal vein sampling (AVS) as the gold standard for lateralization.
• Distinguishing unilateral adenomas from bilateral hyperplasia.
• Review of aldosterone physiology, clinical presentation, and diagnostic workup.

Main Results:

• AVS alters clinical management in 35.7% of primary hyperaldosteronism patients.
• Prevalence of primary hyperaldosteronism is 5%-10% in screened hypertensive patients.
• Up to 62.5% of these patients may have a potentially curable adenoma.

Conclusions:

• Adrenal vein sampling is a safe and effective procedure for diagnosing primary hyperaldosteronism.
• Accurate localization via AVS ensures appropriate surgical or medical management.
• Understanding AVS technicalities improves diagnostic yield and patient care.