The purpose of this study was to evaluate the effects of 1% glucose-containing solution on plasma glucose concentration in elderly and young patients. Twenty-two elderly(>65yr) and 24 young(20-59yr), ASA physical status I or II patients scheduled for elective surgery under general anesthesia were studied. Patients received acetated Ringer's solution containing 1% glucose at a rate of 10ml·kg⁻¹·hr⁻¹. Plasma glucose, sodium and potassium concentrations, and urine volume were measured at just before the incision(baseline), and at 1, 2, and 3 hours(h) after the incision. Plasma glucose concentration in the elderly and the young groups did not change significantly from the baseline values during the 1-3h periods. Plasma glucose at 2h in the young group was significantly lower than that in the elderly group(p<0.05). Incidence of hypoglycemia in the elderly group was significantly lower than that in the young group(p<0.05). Hypoglycemia occurred only in young female patients. 1% glucose-containing solution produced stable intraoperative plasma glucose concentration in the elderly group and the young group except female patients.

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A 72-year-old woman, underwent aortic valve replacement(AVR) with a ball valve 35 years ago after the diagnosis of aortitis syndrome and aortic valve regurgitation. She developed unstable angina with 90% stenosis lesion of the left main trunk(LMT) ostium. We decided to carry out revascularization surgery since the strut of the ball valve was considered to be an obstacle to percutaneous coronary intervention. Using upper abdominal median and left anterolateral approachs, Off-pump coronary artery bypass grafting was performed with the right gastroepiploic artery grafting to the left anterior descending artery. The patient was discharged from the hospital on 17 post operative day without any sequalae.

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