نتایج جستجو برای: cardiac syncope
تعداد نتایج: 281294 فیلتر نتایج به سال:
PURPOSE Syncope is an atypical presentation for acute pulmonary embolism (APE). There are conflicting data concerning syncope and prognosis of APE. PATIENTS AND METHODS One hundred and seventy-nine consecutive patients aged 22-96 years (median, 68 years) with APE were retrospectively enrolled in the study. RESULTS Prevalence of syncope was 13% (n=23) at the time of presentation. Compared to...
OBJECTIVES To determine the sensitivity and specificity of the San Francisco Syncope Rule (SFSR) electrocardiogram (ECG) criteria for determining cardiac outcomes and to define the specific ECG findings that are the most important in patients with syncope. METHODS A consecutive cohort of emergency department (ED) patients with syncope or near syncope was considered. The treating emergency phy...
T ACHY ARRHYTHMIAS constitute a major cause of mortality and morbidity. The most serious manifestation of cardiac arrhythmia is sudden cardiac death where the underlying rhythm is ventricular tachycardia-ventricular fibrillation (VT VF) in the vast majority of patients. I Other symptoms produced by cardiac arrhythmias are syncope, near syncope, lightheadedness, and palpitations. Although suprav...
Historic Overview – Delayed Repolarization Hazard The association of certain cardiovascular drugs such as quinidine with risk of sudden cardiac death (quinidine syncope) was recognized nearly 100 years ago, but the mechanism was obscure until the 1960s, when quinidine syncope was found to be associated with prolongation of the electrocardiographic QT interval and a cardiac arrhythmia that displ...
Aim: To describe a rare case of catecholamine induced polymorphic ventricular tachycardia.
 Presentation Case: Intermittent attacks Ventricular fibrillation and syncope.
 Summary: Catecholaminergic tachycardia (CPVT) is familial cardiac arrhythmia that associated with ryanodine receptor gene (RYR2) or calsequestrin 2 (CASQ2) mutation. It condition occurs in patients structurally norma...
Background—The risk of syncope occurring while driving has obvious implications for personal and public safety. We aimed to define the clinical characteristics, causes, and prognosis of syncope while driving. Methods and Results—In this case-control study of consecutive patients evaluated for syncope from 1996 through 1998 at an academic medical center, we documented causes, clinical characteri...
A 55-year-old woman presented with frequent episodes of syncope due to sinus pauses. During ambulatory Holter monitoring, atrial fibrillation and first-degree atrioventricular nodal block were observed. Magnetic resonance imaging and CT scans showed a tumor-like mass from the superior vena cava to the right atrial septum. Open chest cardiac biopsy was performed. The tumor was composed of prolif...
We reviewed the charts of 100 patients admitted to the hospital for evaluation of syncope. The charts were examined with special attention given to the causes of syncope, the frequency and benefit of diagnostic tests, and the relative cost of these tests. In 39 patients no etiology for syncope was found, and another 18 were felt to have had a vasovagal episode. Twelve patients had arrhythmias a...
A 45-year old normotensive, euglycaemic, non-smoker was referred from a peripheral hospital to the Cardiology unit of the University College Hospital, Nigeria for evaluation of recurrent exercise induced syncope. Initial 12-lead electrocardiogram (ECG), 24-hr ambulatory ECG, trans-thoracic echocardiogram and electroencephalogram (EEG) were normal. A repeat episode of syncope warranted further i...
Syncope is the state of lack of consciousness and temporal loss of postural tone. Syncope might be in association with a variety of benign and life-threatening conditions. Pulmonary embolism (PE) has been shown to be associated with syncope in 13-30 percent of cases. This article presents a novel case report of PE whom syncope was his only manifestation.
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