All heart surgery patients receive blood sugar checks after surgery. A patient who has high blood sugar after heart surgery has a greater chance of picking up an infection.
Why is it important?
Even if heart surgery patients do not have diabetes, keeping their blood sugar under good control after surgery lowers the risk of infection and other problems. "Under good control" means their blood sugar should be 200 mg/dL or less when checked first thing in the morning.
The chart above indicates how often the blood sugar of heart surgery patients was kept under good control in the days right after their surgery. Higher percentages are better.