i am on atenolol (25mg) everyday and i am having surgery on wednesday. i am worried about using general anesthesia and being on atenolol. i worry about everything so this may sound silly. has anyone heard if it is ok to be on atenolol while having general anesthesia. i am on atenolol for mitral valve prolapse, history of svt's, and fast heartrate. my dr. knows i am on atenolol but did not say to withold it. atenolol is not something you can really just quit taking. so i was not sure. has anyone had this experience?