نتایج جستجو برای: myocardial infarction size
تعداد نتایج: 738645 فیلتر نتایج به سال:
Introduction: QT dispersion in a 12 lead ECG represents the heterogeneity of ventricular repolarization. The prolongation of QT-interval dispersion increases the risk of coronary heart disease, ventricular arrhythmia, and sudden cardiac death in patients with myocardial infarction. We aimed to investigate the prognostic value of QT-dispersion in patients with acute myocardial infarction. Meth...
In this study, the changes of renin system activity and the effects of aspirin therapy on the plasma renin activity ( PRA) in myocardial infarction were investigated. Fifty nine patients with myocardial infarction were selected. By suppressed in the former group which was statistically significant ( p<0.01).
BACKGROUND Oxygen is commonly administered to patients with ST-elevation-myocardial infarction despite previous studies suggesting a possible increase in myocardial injury as a result of coronary vasoconstriction and heightened oxidative stress. METHODS AND RESULTS We conducted a multicenter, prospective, randomized, controlled trial comparing oxygen (8 L/min) with no supplemental oxygen in p...
Hirsch, Alan T., John A. Opsahl, Mary M. Lunzer, and Stephen A. Katz. Active renin and angiotensinogen in cardiac interstitial fluid after myocardial infarction. Am. J. Physiol. 276 (Heart Circ. Physiol. 45): H1818–H1826, 1999.— The renin-angiotensin system promotes cardiac hypertrophy after myocardial infarction. The purpose of this study was to measure renin and angiotensinogen in plasma and ...
background: unstable angina and myocardial infarction are developed due to atherosclerosis of coronary arteries. at present, cholestrol, triglyceride, and lipoproteins are the most common risk factors of death. the purpose of this study was to assess the serum levels of lp (a), ldl-c, vldl-c, hdl-c in cases of unstable angina and myocardial infarction.methods: this study was conducted to compar...
We prospectively investigated whether 20'TI single-photon emission computed tomography (SPECT) could accurately diagnose the presence and quantify the extent of acute myocardial infarction when compared with infarct size assessed by plasma MB-creatine kinase activity. Thirty patients with enzymatic evidence of infarction were imaged within 12-36 hours of chest pain (mean, 23.4 hours). No patien...
BACKGROUND A cardioprotective role of morphine acting via opioid receptors has been demonstrated, and previous preclinical studies have reported that morphine could reduce reperfusion injury and myocardial infarct size in a way similar to that of ischemic periconditioning. This study aimed to evaluate the effect of intracoronary morphine on myocardial infarct size in patients with ST-elevation ...
The clinical usefulness of QRST isointegral maps (IQRST map) for detecting myocardial infarction that was complicated by intraventricular conduction disturbances was evaluated in patients with right bundle branch block (group RBBB, 64 patients) and left bundle branch block (group LBBB, 40 patients) by comparison with the normal mean IQRST map derived from 50 normal subjects. Myocardial infarcti...
Baicalin belongs to glucuronic acid glycosides and after hydrolysis baicalein and glucuronic acid come into being. It has such effects as clearing heat and removing toxicity, anti-inflammation, choleresis, bringing high blood pressure down, diuresis, anti-allergic reaction and so on. In this study, we investigated whether baicalin ameliorates isoproterenol-induced acute myocardial infarction an...
serum ige and beta 2 microglobulin levels were determined in 31 patients suffering from acute myocardial infarction and 30 patients with other forms of ischemic heart disease. the levels of these parameters were studied on the first, third and seventh day after the onset of disease. the immunological method used for the determinations was elisa patients with myocardial infarction showed an elev...
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