نتایج جستجو برای: atrial fibrilation
تعداد نتایج: 89009 فیلتر نتایج به سال:
The mammalian sino-atrial node is not a uniform tissue in histological and electrophysiological terms. The differences in ionic currents underlying the regional differences in electrial activity are only just beginning to be understood. One of the ionic currents it is thought to play a role in the center of sino-atrial node for action potential upstroke should be transient Ca+2 current ...
Background: Adrenergic beta antagonists are not sufficient to prevent atrial fibrillation after coronary artery bypass graft (CABG). This study was designed to evaluate the effect of ascorbic acid as an adjunct to beta-blockers in prevention of post-CABG atrial fibrillation Methods: Patients who were more than 50 years old and scheduled to undergo CABG were included if they were treated with b...
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atrial fibrillation is the most prevalent permanent arrhythmia. it may be associated with other cardiac pathologies which need surgical treatment. various types of surgery including the traditional cut-sew operations and operations using different energy sources are currently in use. in comparison with medical treatment, surgery is safe, effective, and has reliable results.
atrial fibrillation (af) is the most common arrhythmia after cardiothoracic surgery. af following coronary artery bypass graft (cabg) is associated with an increase in morbidity, mortality, hemodynamic instability, thromboembolic events, severity of heart failure and icu and hospital stay. corticosteroids have a variety of beneficial effects on recovery after elective surgery. this study was de...
A case of right atrial myxoma in a 5 year old male is presented. The Patient was admitted in the pediatric department with systemic manifestations. Myxoma was incidentally diagnosed.
cor triatriatum is an acyanotic congenital heart disease. we present a rare case of cor triatriatum sinistrum in a 6-month-old female infant who was presented with cyanosis and failure to thrive. the 2d transthoracic echocardiography and the doppler color flow imaging showed a proximal venous chamber communicating to the distal left atrium through restrictive opening to the low-pressure, dista...
background: atrial fibrillation is a common arrhythmia in patients with rheumatic mitral and other valve diseases who are candidates for valve repair surgeries. conversion of rhythm to sinus has positive effects on quality of life and lower use of medications. the aim of this clinical study was to evaluate the effectiveness of the radiofrequency ablation maze iii procedure in the treatment of a...
Background: Calcium channel blockers such as nifedipine possess a dramatic role in treatment of various cardiovascular diseases including angina pectoris, cardiac arrhythmias, and hypertension, so study of cardiovascular effects of derivatives of these drugs seems necessary. The aim of the present study was to evaluate the effects of synthesized dihydropyridine derivatives on chronotropic and i...
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