Is going into surgery with slight hemolytic anemia dangerous? my dad is having holep surgery. his benicar (olmesartan) may be causing the anemia.

Discuss: Discuss your concern with anesthesiologist. He will explain you the risks and will provide reassurance. If your surgeon felt it is unsafe, he would not schedule the surgery.

No: Surgery puts demands on the cardiovascular system but operating on people with mild anemias is common. An ongoing mild hemolysis that does not lower the hemoglobin below 8 or 10 or whatever the surgeon thinks right should not be a problem. I trust that the physicians who detected the hemolysis are managing it appropriately.