ACE and hydrops fetalis: The use of anti-inflammatories shouldbe avoided, particularly in patients at risk: advanced age, previous renalfailure, HF, dehydration, concomitant use of ACE inhibitors, and diuretics orother nephrotoxic agent.591,592 ACE inhibitors andangiotensin II receptor blockers (ARBs) are potentially nephrotoxic drugs, andprescription should be evaluated in the perioperative period.