An 80-year-old male who has diabetes is scheduled for CABG surgery. There is a 70 % obstruction in the left main coronary artery, a 60% obstruction in the right coronary artery, and depressed ventricular function. Which of the following is not a factor that increases this patient’s risk for mortality associated with CABG surgery?
Explanation
Answer: D -Numerous risk factors for mortality after CABG surgery have been identified in several major studies, but male gender is not one of them. In decreasing order of significance these risk factors are:
• Urgency of surgery (emergent or urgent)
• Reoperation
• Older age
• Poor ventricular function
• Female gender
• Left main coronary artery disease
Others risk factors include catastrophic conditions (cardiogenic shock, ventricular septal rupture, ongoing CPR), dialysis-dependent renal failure, end-stage COPD, diabetes, cerebrovascular disease, and peripheral vascular disease.
