Document Detail


Assessment of atrial conduction time by tissue Doppler echocardiography and P-wave dispersion in patients with mitral annulus calcification.
MedLine Citation:
PMID:  20381064     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The aim of our study was to investigate atrial conduction time in patients with mitral annulus calcification (MAC) using P-wave dispersion (PWD) and electromechanical coupling measured with the surface electrocardiogram and the tissue Doppler echocardiography. Fifty-nine patients with MAC and 43 control subjects underwent resting the surface electrocardiogram and tissue Doppler echocardiography. The difference between the maximum (Pmax) and minimum P-wave durations was calculated and defined as PWD. Interatrial and intraatrial electromechanical delays were measured with tissue Doppler echocardiography. Both Pmax and PWD were higher in patients with MAC compared with controls (111.4 +/- 15.8 vs 97.3 +/- 18.8 milliseconds; P < .0001 and 46.4 +/- 14.6 vs 31.4 +/- 13.1 milliseconds; P < .0001, respectively). Both interatrial and intraatrial conduction time were also delayed in patients with MAC compared with controls (29.8 +/- 13.3 vs 17.6 +/- 12.5 milliseconds; P < .0001; 9.4 +/- 5.1 vs 6.8 +/- 4.0 milliseconds; P < .008, respectively). Left atrial (LA) diameter was significantly higher in patients with MAC compared with controls (35.4 +/- 5.0 mm vs 32.3 +/- 4.2 mm; P < .001). The LA diameter correlated significantly with both interatrial conduction times and PWD (r = 0.56; P < .0001 and r = 0.47; P < .0001, respectively). There is a delay in both intraatrial and interatrial electromechanical coupling intervals in patients with MAC.
Authors:
Hasan Pekdemir; Mehmet Cansel; Julide Yağmur; Nusret Acikgoz; Necip Ermis; Ertugrul Kurtoglu; Hakan Tasolar; Halil Atas; Ramazan Ozdemir
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Publication Detail:
Type:  Journal Article     Date:  2010-04-08
Journal Detail:
Title:  Journal of electrocardiology     Volume:  43     ISSN:  1532-8430     ISO Abbreviation:  J Electrocardiol     Publication Date:    2010 Jul-Aug
Date Detail:
Created Date:  2010-07-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  339-43     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier Inc. All rights reserved.
Affiliation:
Faculty of Medicine, Inonu University, Malatya, Turkey. hpekdemir@hotmail.com
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