Most patients have a rapid and uneventful recovery from surgery. High blood pressure is greatly improved in 80 out of 100 to 90 out of 100 of cases. But even after surgery, you may still have high blood pressure. You may need drugs for hours or weeks until your blood pressure returns to normal. The reason for this is not fully understood. It may be the result of kidney damage from primary hyperaldosteronism.
You should continue to see your health care provider after treatment so they can monitor you blood pressure and electrolytes levels.