Original article: cardiovascularStroke after cardiac surgery: a risk factor analysis of 16,184 consecutive adult patients
Section snippets
Study population
A total of 16,184 consecutive adult patients undergoing cardiac surgery between April 1996 and August 2001 were included in this study. CABG with cardiopulmonary bypass (CPB) was performed in 8,917 patients and beating heart CABG through a median sternotomy(OPCAB, n = 765) or through a left lateral minithoracotomy (minimally invasive direct coronary artery bypass (MIDCAB, n = 1,077) was performed in 1,842 patients. A total of 1,830 patients had aortic valve repair or replacement with or without
Results
The significant differences in preoperative patient characteristics for the different surgical procedures were as follows (Table 1): Patients in the CABG group were significantly older than the MIDCAB, aortic valve, mitral valve, and double or triple valve groups (p < 0.05). Within the beating heart CABG group, OPCAB patients were significantly older than MIDCAB patients (p < 0.001). Patients undergoing mitral valve surgery were significantly younger than all other groups (p < 0.05), and
Comment
Neurologic complications after cardiac surgical procedures remain a relatively common problem despite improvements in anesthetic and surgical techniques as well as in perioperative monitoring and management. Several previous studies have demonstrated that permanent neurologic deficits occur in as many as 6% of patients undergoing cardiac surgery 1, 2, 3, 4, 5. In the current prospective large-scale series the incidence of stroke was 4.6% with significant variation among different surgical
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