Effects of intravenous glucose during pacing-induced angina pectoris in patients with coronary artery disease.
The effects of hypertonic glucose infusion on the anginal threshold determined by atrial pacing was studied in 14 patients with significant coronary artery disease. After glucose, angina occurred at a significantly lower heart rate and double product (systolic arterial pressure x heart rate), suggesting a decreased tolerance to ischemic stress. No stoichiometric relationship was noted between glucose uptake and lactate production, and there was no evidence that hypertonic glucose infusion resulted in enhanced anaerobic glycolysis in the ischemic myocardium. Acute elevation of plasma glucose levels may not be beneficial to patients with coronary artery disease.
D000693:Anaerobiosis; D000787:Angina Pectoris / Q000188:drug therapy* / Q000209:etiology; D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure / Q000187:drug effects; D003327:Coronary Disease / Q000378:metabolism* / Q000503:physiopathology; D004562:Electrocardiography; D004734:Energy Metabolism; D005947:Glucose / Q000008:administration & dosage*; D005950:Glucose Solution, Hypertonic / Q000008:administration & dosage*; D006019:Glycolysis; D006325:Heart Atria / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects
D001786:Blood Glucose; D005950:Glucose Solution, Hypertonic; D005947:Glucose