نتایج جستجو برای: adenosine angina
تعداد نتایج: 114488 فیلتر نتایج به سال:
conclusions: patent coronaries of ua/nstemi patients have a trend to higher tfcs compared to normal values. presence of significant coronary lesions in these patients significantly increases tfc. objectives: the present study is aimed to measure the tfc in the coronary arteries of ua/nstemi patients to find abnormalities in diseased or patent vessels and compare with the normal values. patients...
Background and Objective: Excessive production of free radicals during oxidative stress can cause serious damage to important biomolecules and activate programmed cell death pathways in the body. In the nervous system, neuronal cell death leads to many progressive neurodegenerative disorders. The aim of this study was to evaluate the effects of adenosine on the inhibition of apoptosis in oxidat...
In this study the effect of adenosine and caffeine on spontaneous activity of paragigantocellularis (PGi) neurons was investigated. The spontaneous activity of PGi neurons was significantly decreased by microinjection of adenosine (10 nM, 0.5 µl) into PGi nucleus of both control and morphine-dependent rats. The decrease in firing rate of PGi neurons of morphine-dependent rats was greater than t...
Nineteen patients with severe but stable angina pectoris who had positive ECG response to exercise on a bicycle ergometer and 11 normal subjects were studied. Patients received placebo for six weeks and were then randomized into placebo (n = 9) and propranolol (n = 10) treatment groups. Threshold for platelet aggregation in response to adenosine diphosphate (ADP) was measured in fresh platelet ...
Reversal of Abnormal Platelet Aggregability and Change in Exercise Tolerance in Patients with Angina
Nineteen patients with severe but stable angina pectoris who had positive ECG response to exercise on a bicycle ergometer and 11 normal subjects were studied. Patients received placebo for six weeks and were then randomized into placebo (n = 9) and propranolol (n = 10) treatment groups. Threshold for platelet aggregation in response to adenosine diphosphate (ADP) was measured in fresh platelet ...
Background Patients with angina without obstructive coronary artery disease are increasingly recognized and microvascular disease (MVD) is felt to play a significant role. Patients with MVD have an abnormal myocardial perfusion reserve (MPR). An abnormal MPR by positron emission tomography is prognostic of increased cardiovascular events, particularly in women, diabetics, and those with metabol...
BACKGROUND Even in absence of obstructive coronary artery disease women with angina pectoris have a poor prognosis possibly due to coronary microvascular disease. Coronary microvascular disease can be assessed by transthoracic Doppler echocardiography measuring coronary flow velocity reserve (CFVR) and by positron emission tomography measuring myocardial blood flow reserve (MBFR). Diffuse myoca...
congenital anomalies of coronary arteries, albeit rare, may be significant contributors to angina pectoris, hemodynamic abnormalities, and sudden cardiac death. a 47-year-old man referred to us with atypical chest pain. electrocardiography demonstrated no significant ischemic changes, but cardiac troponin i test was positive. the patient underwent coronary angiography, which revealed a single c...
discussion hydatid cyst in pericardium represents only 0.5-2% of cases of systemic echinoccocal infection. isolated pericardial cyst is very rare in endemic region and may present mimicking acute coronary syndrome. cardiac hydatid cysts should always be considered in presence of eosinophilia as present like acute coronary syndrome in endemic area. introduction hydatid cysts are most commonly fo...
background: we report the analgesic efficacy of lumbar epidural adenosine injection in reducing the chronic neuropathic pain in a patient with primitive neuroectodermal tumor. report of the case: in this case report a 13-year-old male with primary neuroectodermal tumor (pnet) was administered in epidural space with adenosine to reduce his pain. the patient received 10ml of 0.25% ropivacaine and...
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