نتایج جستجو برای: Atrial Flutter

تعداد نتایج: 90729  

Journal: :basic and clinical neuroscience 0
atabak najafi mojtaba mojtahedzadeh arezoo ahmadi masoud ramezani reza shariatmoharari ebrahim hazrati

introduction: we report a 56-year-olds female with supraventricular arrhythmia due acute ischemic stroke without structural heart disease. case description: a patient presented with sudden onset of lethargy, right hemiplegia, and global aphasia. there was previous history of stroke 1 year ago presented with left hemiplegia that recovered completely during 10 days. there was no history of comorb...

Journal: :research in cardiovascular medicine 0
majid haghjoo cardiac electrophysiology research center, rajaie cardiovascular medical and research center, tehran university of medical sciences, tehran, ir iran; cardiac electrophysiology research center, rajaie cardiovascular medical and research center, vali-asr ave, niayesh blvd, tehran, ir iran , tel: +98-2123922163, fax: +98-2122048174 nasim salem cardiac electrophysiology research center, rajaie cardiovascular medical and research center, tehran university of medical sciences, tehran, ir iran masoud rafati rajaie cardiovascular medical and research center, tehran university of medical sciences, tehran, ir iran amirfarjam fazelifar cardiac electrophysiology research center, rajaie cardiovascular medical and research center, tehran university of medical sciences, tehran, ir iran

conclusions: catheter ablation of flutter circuit will not prevent later manifestation of af in 16% of the patients undergoing catheter ablation of the typical afl. bmi was the only independent predictor of af following catheter ablation of the typical afl. objectives; to determine long-term incidence and predictors of af after catheter ablation of typical afl. material and methods: between mar...

Journal: :acta medica iranica 0
yamini sharif a moghaddam m

it has been well - established that common atrial flutter is due to intraatrial macroreentry and its reentry circuit locates in the right atrium. this reentry circuit has been characterized to involve an area of slow conduction identifiable electrophysiologically at the low posteroseptal right atrium and anatomical narrow isthmus snrrounded by the inferior vena capa, coronary sinus astium and t...

2005
JAMES L. WELLS A. H. MACLEAN ALBERT L. WALDO

Studies were performed using bipolar atrial wire electrodes to record atrial electrograms and to pace the atria in 27 patients who developed atrial flutter after open heart surgery. Two types of atrial flutter, classic or type I atrial flutter, and type II atrial flutter, were identified. Both types of atrial flutter were characterized by uniformity of the beat-to-beat atrial cycle length, morp...

Journal: :Heart 1998
L P Lai J L Lin L J Lin W J Chen Y L Ho Y Z Tseng C H Chen Y T Lee W P Lien S K Huang

OBJECTIVE To develop new electrocardiographic (ECG) criteria for the differentiation between counterclockwise and clockwise atrial flutters. BACKGROUND Traditionally, the ECG differentiation between counterclockwise and clockwise atrial flutters is based on the flutter wave polarity in the inferior leads. However, determination of flutter wave polarity is subjective and sometimes difficult, e...

2006
Ching- Tai Tai Shin-Ann Chen

Atrial flutter (AFL) is a common arrhythmia in clinical practice. Several experimental models such as tricuspid regurgitation model, tricuspid ring model, sterile pericarditis model and atrial crush injury model have provided important information about reentrant circuit and can test the effect of antiarrhythmic drugs. Human atrial flutter has typical and atypical forms. Typical atrial flutter ...

Journal: :journal of cardio-thoracic medicine 0
ali azari cardiac surgeon, cardiovascular research center, ghaem hospital facultyof medicine, mashhad university of medical sciences, mashhad, iran alireza heidari bakavoli fellowship of electrophysiology, cardiovascular research center, ghaem hospital faculty of medicine, mashhad university of medical sciences, mashhad, iran leila bigdelu cardiologist, cardiovascular research center, ghaem hospital, faculty of medicine, mashhad university of medical sciences, mashhad, iran

pacemaker infection has multiple risk factors. its presentation is most often similar to infected endocarditis and the diagnosis is made through studying blood cultures. transesophageal echocardiography can confirm the diagnosis. the most common microorganisms are staphylococcus speciesis. as a matter of fact, complete pacemaker removal appears to be the only definite treatment. we presented a ...

2009
Kousik Krishnan Akshay Gupta Sean M Halleran Dave Chawla Elizabeth F Avery Julia L Bienias Richard G Trohman

BACKGROUND Right atrial flutter cycle length can prolong in the presence of antiarrhythmic drug therapy. We hypothesized that the cycle length of right atrial isthmus dependent flutter would correlate with right atrial cross-sectional area measurements. METHODS 60 patients who underwent ablation for electrophysiologically proven isthmus dependent right atrial flutter, who were not on Class I ...

Journal: :Heart 2001
A Nabar L M Rodriguez C Timmermans R van Mechelen H J Wellens

OBJECTIVE To describe the electrocardiographic and electrophysiological findings of new atrial flutter developing in patients taking class IC antiarrhythmic drugs for recurrent atrial fibrillation, and to report the long term results of right atrial isthmus ablation in relation to the ECG pattern of spontaneous atrial flutter. DESIGN Retrospective analysis. SETTING Tertiary care academic ho...

2005
Jose Ortiz Shinichi Niwano Haruhiko Abe Yoram Rudy Nancy J. Johnson Albert L. Waldo

It is not generally believed that there is a relation between atrial flutter, thought to be due to a single reentrant circuit, and atrial fibrillation, thought to be due to simultaneously circulating multiple-reentrant wave fronts. However, there are many reasons to suggest that these rhythms are more closely related than previously thought. To test the hypothesis that the length of an area of ...

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