28/04/2025
Adrenal Venous Sampling (AVS) is
needed when doctors suspect that if one or both adrenal glands are producing too much aldosterone, a hormone that controls blood pressure. This can cause high blood pressure that doesn’t improve with regular medicines.
Since regular tests like CT scans can’t always show which gland is causing the problem, AVS is done to directly measure aldosterone levels from each adrenal gland.
AVS is a minimally invasive Interventional Radiology procedure, where a thin tube (catheter) is inserted via groin region into adrenal veins, and blood samples are taken.
This helps doctors decide on the best treatment, whether surgery or medication, to control high blood pressure.
