Literature DB >> 3216179

A computer model of the electrogram: what causes fractionation?

M D Lesh1, J F Spear, M B Simson.   

Abstract

Fractionated electrograms are frequently recorded during mapping studies in patients with coronary artery disease and ventricular tachycardia. The authors developed a computer model of electrogram generation based on the biophysics of volume conductor fields. They show that fractionated electrograms can be produced as otherwise uniform wavefronts of activation encounter regions of increased cellular coupling resistance. Because of this, local activation may not correspond to the largest or most rapid deflection in a polyphasic, fractionated electrogram.

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Year:  1988        PMID: 3216179     DOI: 10.1016/0022-0736(88)90061-1

Source DB:  PubMed          Journal:  J Electrocardiol        ISSN: 0022-0736            Impact factor:   1.438


  20 in total

1.  Fragmented left sided QRS in absence of bundle branch block: sign of left ventricular aneurysm.

Authors:  Chatla V R Reddy; Kuruvilla Cheriparambill; Barry Saul; Majesh Makan; John Kassotis; Awaneesh Kumar; Mithilesh Kumar Das
Journal:  Ann Noninvasive Electrocardiol       Date:  2006-04       Impact factor: 1.468

2.  Predictive value of a fragmented QRS complex in patients undergoing primary angioplasty for ST elevation myocardial infarction.

Authors:  Ozgur Akgul; Huseyin Uyarel; Hamdi Pusuroglu; Ozgur Surgit; Selahattin Turen; Mehmet Erturk; Erkan Ayhan; Umit Bulut; Omer Faruk Baycan; Ali Riza Demir; Nevzat Uslu
Journal:  Ann Noninvasive Electrocardiol       Date:  2014-07-07       Impact factor: 1.468

3.  The prognostic significance of a fragmented QRS complex after primary percutaneous coronary intervention.

Authors:  Hasan Ari; Seçkin Cetinkaya; Selma Ari; Vedat Koca; Tahsin Bozat
Journal:  Heart Vessels       Date:  2011-02-23       Impact factor: 2.037

4.  Fragmented QRS on Admission Electrocardiography Predicts Long-Term Mortality in Patients with Non-ST-Segment Elevation Myocardial Infarction.

Authors:  Emrah Bozbeyoğlu; Özlem Yıldırımtürk; Selçuk Yazıcı; Ufuk Sadık Ceylan; Aysun Erdem; Adnan Kaya; Cevdet Dönmez; Şükrü Akyüz; Mustafa Çetin
Journal:  Ann Noninvasive Electrocardiol       Date:  2015-09-22       Impact factor: 1.468

5.  Assessment of the association between the presence of fragmented QRS and the predicted risk score of sudden cardiac death at 5 years in patients with hypertrophic cardiomyopathy.

Authors:  Sinem Özyılmaz; Özgür Akgül; Hüseyin Uyarel; Hamdi Pusuroğlu; Muammer Karayakalı; Mehmet Gül; Mustafa Çetin; Hulusi Satılmışoğlu; Aydın Yıldırım; İhsan Bakır
Journal:  Anatol J Cardiol       Date:  2017-05-30       Impact factor: 1.596

6.  Relationship between fragmented QRS complexes and left ventricular systolic and diastolic functions.

Authors:  A Canga; S A Kocaman; M E Durakoğlugil; M Cetin; T Erdoğan; T Kırış; M Erden
Journal:  Herz       Date:  2013-04-17       Impact factor: 1.443

7.  [High frequency current ablation of supraventricular tachyarrhythmias in congenital heart defects].

Authors:  J Hebe; M Antz; J Siebels; M Volkmer; F Ouyang; K H Kuck
Journal:  Herz       Date:  1998-06       Impact factor: 1.443

8.  Improved spatial resolution and electrogram wave direction independence with the use of an orthogonal electrode configuration.

Authors:  Nathaniel C Thompson; Justin Stinnett-Donnelly; Nicole Habel; Bryce Benson; Jason H T Bates; Burton E Sobel; Peter S Spector
Journal:  J Clin Monit Comput       Date:  2013-09-26       Impact factor: 2.502

9.  Fragmented QRS complexes not typical of a bundle branch block: a marker of greater myocardial perfusion tomography abnormalities in coronary artery disease.

Authors:  Jo Mahenthiran; Bilal R Khan; Stephen G Sawada; Mithilesh K Das
Journal:  J Nucl Cardiol       Date:  2007-04-16       Impact factor: 5.952

10.  High-resolution analysis of the surface P wave as a measure of atrial electrophysiological substrate.

Authors:  Damian P Redfearn; Joanne Lane; Kevin Ward; Peter J Stafford
Journal:  Ann Noninvasive Electrocardiol       Date:  2006-01       Impact factor: 1.468

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