To assess the influence of off-pump
coronary artery surgery on early and midterm clinical results in
elderly patients.
Coronary artery bypass grafting [CABG] in
elderly patients is associated with perioperative
mortality and
morbidity rates higher than those observed in young
aged patients. The avoidance of cardiopulmonary by pass [CPB] in this
population is potentially beneficial. This a
retrospective study consisted of 1007 CABG
patients. Of these 583
patients underwent CABG without CPB [group A] and 424
patients underwent CABG with CPB [group B].
Patients that converted from off-pump to CPB ere included in group A. Most of the preoperative variables ere comparable between the two groups. Group A
patients had more preoperative
cerebrovascular accident [p=0.044],
carotid artery disease [p=0.025] and renal impairment [p=0.03]. Group B had more
female patients [p=0.045], more
patients with low EF [p=0.007] and more
patients with multivessel
disease [P=0.031]. 33[5.7%]
patients were converted to CPB. Early
mortality was 3.7% [group A, 2.6%, Group B, 5.2%; p=0.045, acute
myocardial infarction incidence was 2.38% [group A, 1.5%; group B, 35%; p=0.041],
cerebrovascular accident incidence was 0.99% [group A, 0.34%; group B, 1.88%; p=0.0.34], and early major events
incidence was 9.9% [group A, 7.9%; group B, 13.2%; p=0.006]. Group A had a short ICU and
hospital stay than group B, Stepwise
logistic regression analysis showed that CPB was an independent
risk factor for higher
mortality [
Odds Ratio "OR", 2.2; p=0.021 7], higher
incidence of acute
myocardial infarction [
Odds Ratio, 2.5; p=0.0185], and higher
incidence of early major events [Odd Ratio, 1.8, p=0.0034]. Mid-term
mortality or cardiac-related events were
similar in the two groups. In
elderly patients, off-pump CABG is safe-
procedure that facilitates early recovery and reduces the
incidence of postoperative
mortality and
morbidity. At mid-term follow up, the
incidence of
mortality and cardiac-related events were low in both group supporting a more aggressive
policy of coronary revascularization in
elderly patients