title: I will undergo heart surgery soon and have heard that the effects of the general anesthesia may last more than a month.  Is this true?
mesh_terms: D000222:Adaptation, Physiological; D000768:Anesthesia, General / Q000009:adverse effects*; D006348:Cardiac Surgical Procedures / Q000009:adverse effects; D002560:Cerebrovascular Circulation / Q000187:drug effects; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology* / Q000517:prevention & control*; D011184:Postoperative Period; D040242:Risk Reduction Behavior