How do they stitch the small arteries in coronary artery bypass surgery?

Immobilize/Magnify. Surgeons use magnifying glasses to a enlarge the coronaries that are very small. The coronaries are immobilized using either a special device (beating heart surgery) or stopping the heart altogether (on bypass).

Related Questions

Whats life expectancy for those who went through coronary artery bypass surgery?

Yes. Yes certainly. Bypass surgery under the right circumstance is performed to improve quality of life and also longevity. How long one survives after bypass is of course dependent on the age, condition of the heart and overall health at the time of the surgery. Read more...

What is the life expectancy for those who went through coronary artery bypass surgery?

CABG. The life expectancy has to do with their general status as well as their cardiac disease. In general if well treated people do very well post cabg. On the other hand if they have severe cardiac damage, ef <10% and active ventricular arrhythmias, their life expectancy is not good. Read more...
Improved generally. 98%!from surgery then close to tables for age, sex, and other diseases stop smoking weight control exercize are critical. Read more...

What body cavity is used to perform coronary artery bypass surgery?

Center of chest. Coronary bypass operation is performed by cutting the breastbone down the middle and opening up the chest. When the parts of the split breast bone are moved to each side the heart is easily reached. Once the coronary vessels have bypasses in place the sternum is brought back to the middle and held with wire sutures that are permanent. Read more...

Are smokers or obese people not eligible for coronary artery bypass surgery?

Per se, no one is. Excluded. Risk analysis is done for everyone who needs cabg. Risks will always be a reality. But managing risks is the challenge to the "heart team", that includes the patient. Read more...
CABG. No, they are still eligible, but their risks of surgery are much higher. Obesity and smoking would exclude one from getting a heart transplant though. Also, smoking would (at least in my practice) exclude you from having weight loss surgery. Read more...