title: Long-term survival and functional status in the elderly after cardiac surgery.
abstract: BACKGROUND
  Hospital mortality and morbidity of cardiac surgery have been well described in the elderly, but there is a paucity of data regarding long-term functional status.
  
  
  OBJECTIVE
  To evaluate long-term survival and functional status of patients aged 70 years or older after cardiac surgery.
  
  
  METHODS
  Retrospective observational study.
  
  
  METHODS
  University-affiliated tertiary care hospital.
  
  
  METHODS
  Three hundred and twenty-nine consecutive patients aged 70 or older who had undergone cardiac surgery from January 1990 to December 1993.
  
  
  METHODS
  Besides postoperative mortality and morbidity, data regarding long-term survival and functional status and preoperative variables affecting these outcomes were analyzed.
  
  
  RESULTS
  Mean age at surgery was 73.9 +/- 2.9 years, and 70.2% of the procedures were performed on an urgent basis. Postoperative mortality was 9.4%. Five-year Kaplan-Meier survival in postoperative survivors was 85.9% and is comparable with the survival of the general sex- and age-matched Quebec population. Preoperative variables affecting long-term survival were atrial fibrillation (RR 3.8; 95% CI 1.4 to 10.0), smoking status on admission (RR 3.6; CI 1.6 to 8.1), peripheral vascular disease (RR 2.9; CI 1.4 to 6.2) and low creatinine clearance (RR 1.4; CI 1.1 to 1.7). Functional status evaluated by the Karnofsky score showed a successful functional outcome in 84.6% of patients at follow-up (mean 2.6 +/- 1.1 years). Preoperative variables unfavourably influencing a successful functional outcome were hypertension (OR 0.34; CI 0.15 to 0.76), cerebrovascular disease (OR 0.35; CI 0.15 to 0.87) and low creatinine clearance (OR 0.73; CI 0.55 to 0.96).
  
  
  CONCLUSIONS
  Despite severe cardiovascular and often urgent conditions, sustained functional improvement and good long term survival can be objectively documented in most elderly patients after cardiac surgery.
authors.affiliation: Department de Médecine, Hôpital Notre-Dame de Montréal, Hôpital Hôtel-Dieu de Montréal, Université de Montréal, Québec. bouchje@ere.umontreal.ca
authors.forename: J M
authors.initials: JM
authors.lastname: Boucher
authors.forename: A
authors.initials: A
authors.lastname: Dupras
authors.forename: N
authors.initials: N
authors.lastname: Jutras
authors.forename: V
authors.initials: V
authors.lastname: Pagé
authors.forename: J
authors.initials: J
authors.lastname: LeLorier
authors.forename: R M
authors.initials: RM
authors.lastname: Gagnon
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D006348:Cardiac Surgical Procedures / Q000401:mortality*; D001026:Coronary Artery Bypass / Q000401:mortality; D005260:Female; D006351:Heart Valves / Q000601:surgery; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D011183:Postoperative Complications / Q000453:epidemiology* / Q000401:mortality; D012189:Retrospective Studies; D012307:Risk Factors; D016019:Survival Analysis; D017741:Survivors