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BACKGROUND Healthy women have longer QT intervals and more drug-induced proarrhythmia compared to men, yet those given implantable cardioverter-difibrillators (ICDs) for ischemic cardiomyopathy have fewer episodes of ventricular tachycardia/ventricular fibrillation (VT/VF) than men. The role of repolarization duration and stability in arrhythmogenesis in(More)
OBJECTIVE To identify the causes of diabetic ketoacidosis (DKA) in a large urban hospital. RESEARCH DESIGN AND METHODS Consecutive patients admitted during a 3-month period with a primary diagnosis of DKA and who had moderate-to-severe illness as shown by serum glucose > 13.9 mmol/l ( > 250 mg/dl), bicarbonate < 15 mmol/l, and pH < 7.35 were studied.(More)
Submariners spend prolonged periods submerged without sunlight exposure and may benefit from vitamin D supplementation to maintain vitamin D status. The primary objective of this study was to determine the efficacy of daily vitamin D supplementation on maintenance of 25-hydroxyvitamin D (25(OH)D) during a 3-month submarine patrol. Submariners were randomly(More)
Confined space, limited exercise equipment, rotating shift work and reduced sleep may affect cardiometabolic health in submariners. To test this hypothesis, 53 male U.S. Submariners (20-39 years) were studied before and after a 3-month routine submarine patrol. Measures included anthropometrics, dietary and physical activity, biomarkers of cardiometabolic(More)
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