What are the Risks and Complications of CABG Surgery?


Largely, the mortality rate related to a CABG surgery is about 3 - 4 %. Heart attacks are known to occur during or soon after the surgery, however, this happens only in 5 – 10 % of the patients and is the chief reason for death. Approximately 5 % patients need exploration on account of bleeding. This 2nd operation greatly raises the danger of lung infections complications in 1 - 2 % of the patients. In patients who are 70 years and above, stroke is known to occur.

1. Excessive bleeding
2. Chest infections
3. Increased peril of heart attack
4. Stroke, hemiplegic
5. Death

Mortality and complications tend to increase with:

• Age, 70 years and above
• Inadequate functioning of the heart muscle
• Chronic lung disease
• Obstruction of the left main coronary artery
• Kidney failure
• Diabetes mellitus

• The mortality rate is invariably high in women, principally because of the advanced age at the time of the surgery and presence of small coronary arteries. CAD in women develops around 10 years later, than in men, given that they have ‘hormonal protection’ while they menstruate. By and large, women are shorter than men, and have smaller coronary arteries. Small blood vessels make CABG surgery somewhat more tricky, complicated and long-drawn-out.
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