Preoperative medication before surgery for Conn’s syndrome
Before adrenal venous sampling
Some of the drugs used previously to control your blood pressure might be changed before proceeding with adrenal venous sampling as they can interfere with the release of aldosterone and could make interpretation of the results of this test more difficult or inaccurate.
Spironolactone or Eplerenone
These drugs are aldosterone antagonists and are frequently used to supplement or replace your antihypertensive medication once the diagnosis of Conn’s syndrome is confirmed.
Potassium supplements
It is imperative to correct the low potassium levels before having a general anaesthetic. In some patients spironolactone is sufficient to achieve this goal but frequently potassium supplements are prescribed for 1-3 months before the operation.