Drug used in hea failure-
ACE inhibitors
Hydralazine
Ca2+channel blockers
Carvedilol
Ref : harrisons-manual-of-medicine-16th-edition pg no: 36 HEA FAILURE This is a major predictor of perioperative risk.Regimenof ACE inhibitor and diuretics should be optimized preoperatively to minimizerisk of either pulmonary congestion or intravascular volume depletionpostoperatively. Ref Davidson 23rd edition pg 456
C.V.S