| Sinus and paced P wave duration and dispersion as predictors of atrial fibrillation after pacemaker implantation in patients with isolated sick sinus syndrome. | |
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MedLine Citation:
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PMID: 15125716 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to prospectively evaluate the sinus and the paced P wave duration and dispersion as predictors of AF after pacemaker implantation in patients with isolated sick sinus syndrome (SSS). The study included 109 (69 women, mean age 72 +/- 11 years) patients with SSS, 59 with bradycardia-tachycardia syndrome (BTS). A 12-lead ECG was recorded before pacemaker implantation and during high right atrial and septal right atrial pacing at 70 and 100 beats/min. The ECGs were scanned into a computer and analyzed on screen. The patients were treated with AAIR (n = 52) or DDDR pacing. The P wave duration was measured in each lead and mean P wave duration and P wave dispersion were calculated for each ECG. AF during follow-up was defined as: AF in an ECG at or between follow-up visits; an atrial high rate episode with a rate of > or =220 beats/min for > or =5 minutes, atrial sensing with a rate of > or =170 beats/min in > or =5% of total counted beats, mode-switching in >/=5% of total time recorded, or a mode switching episode of > or =5 minutes recorded by the pacemaker telemetry. The ECG parameters were correlated to AF during follow-up. Mean follow-up was 1.5 +/- 0.9 years. None of the ECG parameters differed between patients with AF and patients without AF during follow-up, nor was there any difference between groups after correction for BTS and age. BTS was the strongest predictor of AF during follow-up (P < 0.001). P wave duration and dispersion measured before and during pacemaker implantation were not predictive of AF after pacemaker implantation in patients with isolated SSS. |
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Authors:
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Lene Kristensen; Jens Cosedis Nielsen; Peter Thomas Mortensen; Per Dahl Christensen; Thomas Vesterlund; Anders Kirstein Pedersen; Henning Rud Andersen |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Pacing and clinical electrophysiology : PACE Volume: 27 ISSN: 0147-8389 ISO Abbreviation: Pacing Clin Electrophysiol Publication Date: 2004 May |
Date Detail:
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Created Date: 2004-05-05 Completed Date: 2004-09-17 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7803944 Medline TA: Pacing Clin Electrophysiol Country: United States |
Other Details:
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Languages: eng Pagination: 606-14 Citation Subset: IM |
Affiliation:
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Department of Cardiology, Skejby Hospital, Aarhus University Hospital, Aarhus, Denmark. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Atrial Fibrillation / etiology, physiopathology, prevention & control* Cardiac Pacing, Artificial* Chi-Square Distribution Electrocardiography Female Humans Male Predictive Value of Tests Prospective Studies Regression Analysis Sick Sinus Syndrome / complications, physiopathology*, therapy |
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