Effects of continuing or withholding angiotensin axis blockers prior to elective surgery: The PAAB randomized clinical trial.
BACKGROUND Current guidelines favour preoperative withholding of angiotensin-axis blockers (AABs) in patients without hypertension or systolic heart failure to decrease peri-operative cardiorenal risk, although evidence of such effects is lacking. OBJECTIVE To assess rates of postoperative cardiovascular events with...