start beta-blockers EARLIER before surgery
New guidelines say to start beta-blockers EARLIER before surgery.
This applies to noncardiac surgeries in high-risk patients such as those with ischemia on pre-op tests...cardiovascular disease...or multiple risk factors.
It can be harmful to start a HIGH-dose beta-blocker on the day of surgery. Blood pressure and heart rate can fall too much...and lead to more strokes and death.