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Ann Thorac Surg 2001;72:S1026-S1032
© 2001 The Society of Thoracic Surgeons
a Escorts Heart Institute and Research Centre, New Delhi, India
Address reprint requests to Dr Mishra, Escorts Heart Institute and Research Centre, Okhla Rd, New Delhi 110025, India
e-mail: manishamishra{at}yahoo.com
Presented at the Seventh Annual Cardiothoracic Techniques and Technologies Meeting 2001, New Orleans, LA, Jan 24–27, 2001.
Background. Perioperative stroke is a devastating complication after coronary artery bypass grafting (CABG). The reported incidence of neurologic complications after conventional CABG is 3% to 7%. With improved monitoring and surgical techniques, we have been able to achieve a drastic reduction in the stroke rate in our institution. This study evaluates the incidence of neurologic sequelae in patients who underwent off-pump CABG.
Methods. Over a 10-year period from January 1990 to September 2000, off-pump coronary artery bypass (OPCAB) operation was performed on 2,800 patients of the 18,037 patients undergoing CABG during that time frame at the Escorts Heart Institute and Research Centre. Initially, OPCAB was performed selectively in the high-risk group of patients (atheromatous aorta, renal impairment, chronic obstructive pulmonary disease, octogenarians, etc). Lately we performed multivessel OPCABs electively in about 60% to 65% of the patients undergoing CABG.
Results. Mean age of the patients was 58.0 ± 9.91 years (range 27 to 85 years) and mean number of grafts was 2.9 per patient. Neurologic complications (stroke/transient ischemic attack) occurred in 0.14% of patients. Overall hospital mortality in OPCAB patients was 2.14%, whereas mortality from neurologic complications was 0.07%. Predicted mortality (National Society of Thoracic Surgeons Cardiac Surgery Database Risk Model for CABG) for the entire patient group was 3.86% (p < 0.001).
Conclusions. Although current techniques of monitoring and surgical procedures have significantly reduced the risk of stroke from CABG, our data strongly support OPCAB as a technique to further reduce stroke after CABG, especially in the high-risk group of patients.
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