26. Bleifeld W, Mathey D, Hanrath P, Buss H, Effert S: Infarct size estimated from serial serum creatine phosphokinase in relation to left ventricular hemodynamics. Circulation 55: 303, 1977 27. Humphries JO, Pitt B, Griffith LSC, Ducci HH, Achuff S, Baird M, Schulze RA Jr: Coronary angiography and left ventriculography in survivors of transmural and subendocardial myocardial infarction. Circul...

African Americans are disproportionately affected by heart failure, with a high prevalence at an early age. Hypertension, diabetes, obesity, and chronic kidney disease are all common in African Americans and all predispose to heart failure. Neurohormonal imbalances, endothelial dysfunction, genetic polymorphisms, and socioeconomic factors also contribute. In general, the same evidence-based tre...

Background. The mechanism responsible for exercise-induced myocardial ischemia early after successful coronary angioplasty (PTCA) is poorly understood. Methods and Results. Twelve patients who underwent one-vessel PTCA were studied. Exercise testing was performed before and on day 7 after PTCA, which was repeated after 10 mg sublingual isosorbide dinitrate if the test was positive. Quantitative...

BACKGROUND Sildenafil citrate (Viagra) is indicated for the treatment of erectile dysfunction. Large and sudden decreases in systemic blood pressure were reported in a substantial number of patients taking sildenafil citrate combined with nitroglycerin. We studied the effect of sildenafil citrate on the relationship between changes in systemic blood pressure and coronary blood flow. METHODS A...

BACKGROUND Several nonpharmacological interventions, including exercise, are recommended in primary prevention of hypertension and other cardiovascular diseases in which the pathogenetic role of endothelial dysfunction has been suggested. We studied the effects of long-term aerobic exercise on endothelial function in patients with essential hypertension. METHODS AND RESULTS The forearm blood ...

The effect of a long-acting nitrate, isosorbide dinitrate (ID) 5 mg sublingually, on the lower oesophageal sphincter was tested in 24 patients with achalasia. The drug caused a reduction in LOS pressure in all cases. The mean LOS pressure fell from 46.32.7 mmHg to 15.31.8 mmHg (p less than 0.01). The pressure began to drop after several minutes, reaching its lowest levels after 15 minutes. This...

The main aim of this study was to set up a new animal model to study insulin resistance. Wistar rats (6 or 7 per group) received the following for 4 wk in experiment 1: 1) vehicle, 2) 2 microg/day subcutaneous dexamethasone, 3) metformin (400 mg x kg(-1) x day(-1) os), and 4) dexamethasone plus metformin. In experiment 2 the rats received the following: 1) vehicle, 2) dexamethasone, 3) dexameth...