Many people who have heart problems, or are at risk for heart problems, take drugs called beta blockers to reduce the risk of future heart problems. This measure shows whether surgery patients who were already taking beta blockers before coming to the hospital were given beta blockers during the time just before and after their surgery.
Why this is important:
It is often standard procedure to stop a patient's usual medications for a while before and after their surgery. But, if a patient who has been taking beta blockers suddenly stops taking them, s/he can have heart problems such as a fast heart beat. For these patients, staying on beta blockers before and after surgery makes it less likely that they will have heart problems.
The chart above shows how often patients were given beta blockers during the time just before and after their surgery.