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: D000368:Aged; D000768:Anesthesia, General / Q000009:adverse effects*; D001288:Attention / Q000187:drug effects; D006348:Cardiac Surgical Procedures; D006801:Humans; D008569:Memory Disorders / Q000139:chemically induced; D008875:Middle Aged; D013997:Time Factors