<qa>  What is the risk of postoperative myocardial infarction?Longterm functional recovery will be measured with the Alzheimers Disease Research Center ADRC Instrumental Activities for Daily Living IADL-24. Postsurgical complications will be recorded including unplanned ICU admissions, postoperative myocardial infarction and stroke risk less than 1 in most cases, wound infection and reoperation. The full cognitive and functional battery will be repeated at 3 months and 1 year after surgery. 