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Presbyterian Medical Center

Patients with controlled postoperative blood sugar

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.