title: [Prognosis of different operative procedures of coronary artery bypass grafting in the senile patients].
abstract: OBJECTIVE
  To investigate myocardial protection and prognosis of the different operative procedures of coronary artery bypass grafting (CABG) for the senile patients with coronary artery disease.
  
  
  METHODS
  From July 2008 to June 2009, 125 cases (age ≥ 65 years old) underwent CABG were divided into 3 groups.Group A (70 cases) undertook off-pump CABG, group B (33 cases) undertook on-pump beating heart CABG. group C (22 cases) undertook on-pump CABG with cardiac arrest. Serum level of cardiac troponin I (cTnI) and creatine kinase MB isoenzyme (CK-MB) activity were examined right before operation and 0, 24, 72 and 168 h after operation. The complications during perioperative period and the mortality were investigated.
  
  
  RESULTS
  No significant difference was found in the right before operation and 168 h after operation of the serum level of cTnI and CK-MB in the 3 groups (P > 0.05). The serum level of cTnI and CK-MB activity of group A was the lowest and group B was lower than group C. Group A was the best concerning the complications during perioperative period. The mortality of group A was lower than group B but no significant difference was found in the mortality between group A and C. No significant difference was found in the complications during perioperative period and the mortality between group B and C.
  
  
  CONCLUSIONS
  Off-pump CABG could reduce myocardial injury and the complications during perioperative period in the senile patients.
authors.affiliation: Department of Cardiac Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yu
authors.forename: Tian-xiang
authors.initials: TX
authors.lastname: Gu
authors.forename: En-yi
authors.initials: EY
authors.lastname: Shi
authors.forename: Qin
authors.initials: Q
authors.lastname: Fang
authors.forename: Chun
authors.initials: C
authors.lastname: Wang
authors.forename: Yu-hai
authors.initials: YH
authors.lastname: Zhang
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002315:Cardiopulmonary Bypass; D001026:Coronary Artery Bypass / Q000379:methods*; D047549:Coronary Artery Bypass, Off-Pump; D003327:Coronary Disease / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D011379:Prognosis