Document Detail

Predictors of unusual ECG characteristics in cavotricuspid isthmus-dependent atrial flutter ablation.
MedLine Citation:
PMID:  21605144     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: An unusual 12-lead electrocardiographic pattern may be present in patients with cavotricuspid isthmus (CTI)-dependent flutter.
OBJECTIVE:  Using baseline patient characteristics and echocardiography, we sought to study predictors of unusual electrocardiogram (ECG) characteristics in patients with CTI-dependent atrial flutter.
METHODS:  This was a dual-center, retrospective cohort study of 147 patients undergoing electrophysiology study and ablation for CTI-dependent atrial flutter.
RESULTS: Among this cohort, 23 patients (16%) had unusual 12-lead ECG characteristics. Using multivariate logistic regression, we found two clinical predictors for having an unusual ECG pattern. A clockwise (CW) pattern at time of electrophysiology study was the strongest predictor of an unusual ECG pattern (odds ratio 15.3, 95% confidence interval [CI] 4.0-59.4, P < 0.005). In addition, patients with decreased systolic function had a 3.5 greater odds (95% CI 1.1-11.5, P = 0.037) of having an unusual ECG pattern.
CONCLUSIONS: Our data demonstrate that among patients suffering from CTI-dependent atrial flutter who are referred for ablation, 16% will have unusual ECG patterns. Patients with CW atrial activation and left ventricle dysfunction have greater odds of manifesting unusual patterns by surface electrocardiogram.
Kurt S Hoffmayer; Yanfei Yang; Stephen Joseph; James M McCabe; Prashant Bhave; Jonathan Hsu; Ramford K Ng; Byron K Lee; Nitish Badhwar; Randall J Lee; Zian H Tseng; Jeffrey E Olgin; Sanjiv M Narayan; Gregory M Marcus; Melvin M Scheinman
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Publication Detail:
Type:  Journal Article     Date:  2011-05-23
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  34     ISSN:  1540-8159     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-14     Completed Date:  2012-02-22     Revised Date:  2014-09-08    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1251-7     Citation Subset:  IM    
Copyright Information:
©2011, The Authors. Journal compilation ©2011 Wiley Periodicals, Inc.
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MeSH Terms
Atrial Flutter / physiopathology*,  surgery*,  ultrasonography
Catheter Ablation*
Heart Atria / physiopathology,  surgery,  ultrasonography
Middle Aged
Retrospective Studies
Stroke Volume
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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