نتایج جستجو برای: nitroglycerin
تعداد نتایج: 3857 فیلتر نتایج به سال:
OBJECTIVES This study was designed to assess the extent and timing of vasodilation after intracoronary administration of nitroglycerin using intravascular ultrasound. We also sought to relate the magnitude of nitroglycerin-induced dilation to the distribution of atherosclerotic plaque. BACKGROUND Although previous angiographic studies have shown that nitroglycerin can dilate both normal and s...
OBJECTIVE To evaluate the effectiveness of nitroglycerin as a uterine relaxant for preterm labour, fetal extraction at Caesarean section, external version, embryo transfer, cervical dilation for first trimester pregnancy termination, and primary dysmenorrhea. DESIGN A systematic review of randomized control trials (RCTs) of nitroglycerin in obstetrics and gynaecology. METHODS We searched Pu...
PURPOSE Nitroglycerin may improve the response to chemotherapy in advanced non-small cell lung cancer. The effects and mechanisms of nitroglycerin on the enhancement of chemosensitivity to docetaxel and carboplatin regimen (DCb) in patients with lung adenocarcinoma have not been reported. EXPERIMENTAL DESIGN Seventeen patients with operable lung adenocarcinoma and stable angina pectoris were ...
whose empiric formula is C6H12O6 • H2O, and whose molecular weight is 198.17. Nitroglycerin in 5% Dextrose Injection is a sterile, nonpyrogenic solution of nitroglycerin and dextrose in water for injection. The solution is clear and practically colorless. Each 100 mL contains 10 mg, 20 mg, or 40 mg nitroglycerin (added as Diluted Nitroglycerin, USP with propylene glycol); 5 g Dextrose Hydrous, ...
SUMMARY The hemodynamic effects of 10 mg of propranolol given intravenously (iv) were studied in 10 patients (group I) with coronary heart disease (CHD). These results were compared with the hemodynamic effects in a similar group of the nine (CHD) patients (group II) who were studied after administration of 0.6 mg of nitroglycerin and then after receiving 10 mg of propranolol iv with a second 0...
nitroglycerin has a relaxing effect on the smooth muscles of organs including uterus. this study investigates the effect of intravenous nitroglycerin in emergency cesarean sections in which rapid and transient uterine relaxation for rapid and nontraumatic extraction of the fetus is necessary. sixty pregnant women who were been candidates for emergency cesarean and needed rapid uterine relaxatio...
OBJECTIVES The purpose of this study was to test the hypothesis that the sensitivity to nitroglycerin of collateral vessels and recipient arteries is greater than that of donor arteries of the collateral circulation. BACKGROUND The collateral circulation responds vigorously to nitroglycerin. However, the mechanisms of the efficacy of nitroglycerin for improving collateral circulation are not ...
The recent use of vasodilators to improve ventricular function in acute myocardial infarction led us to investigate the effects of nitroglycerin, nitroprusside, and phentolamine on coronary collateral flow. Dogs were studied 2-4 wk after an ameroid constrictor was placed around the left anterior descending (LAD) coronary artery. Retrograde flow and peripheral coronary pressure were measured fro...
as changes in effective vascular compliance) in dogs (n=12) during long-term nitroglycerin treatment (1.5 ,g/kg/min i.v. for 5-6 days). In dogs with nitroglycerin-specific tolerance (shift of venous or epicardial artery dilation to 15-17-fold higher dosages), N-acetylcysteine (100 mg/ kg i.v.) had no dilator effect and did not alter the dose-response relations of nitroglycerin. Yet, in nontoler...
N-acetylcysteine is assumed to reverse nitrate tolerance by replenishing depleted intracellular sulfhydryl groups, but data on interactions of N-acetylcysteine and nitrates in patients with stable angina are controversial and disappointing. Therefore, we studied the effect of N-acetylcysteine on nitrate responsiveness of epicardial arteries and of the venous system (assessed as changes in effec...
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