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Assessment of P-wave duration and dispersion in patients with isolated coronary artery ectasia.

Abstract：

INTRODUCTION:Coronary artery ectasia (CAE) is defined as localized or diffuse dilatation of the epicardial coronary arteries. We sought to determine whether isolated CAE may alter P-wave duration and dispersion (PD). METHODS:The study population consisted of 26 patients (mean age: 61.6+/-11.0 years) with isolated CAE (group 1) and sex- and age-matched 26 control subjects (group 2). Both groups underwent a standard 12-lead surface electrocardiogram recorded at 50 mm/s. Maximal (P(max)) and minimal P-wave durations (P(min)) are measured. PD was defined as the difference between P(max) and P(min). RESULTS:In group 1, P(max) (114.2+/-10.4 ms vs 104.8+/-10.6 ms, p<0.002) and PD (34.0+/-12.7 ms vs 24+/-10.6, p<0.004) were significantly higher than those of group 2. Moreover a significant correlation was found between P(max) and PD with ectatic segment number (r=0.625, r=0.626, respectively; p=<0.001); and P(max) and PD with ectatic vessel number (r=0.698, r=0.704 respectively; p=<0.0001). CONCLUSION:Isolated CAE and the degree of the ectasia were found to be associated with prolonged P(max) and PD.

journal_name

Int J Cardiol

journal_title

International journal of cardiology

authors

Dogan SM,Yildirim N,Aydin M,Gursurer M,Cam F,Celik O

doi

10.1016/j.ijcard.2007.01.042

subject

Has Abstract

pub_date

2008-04-25 00:00:00

pages

404-6

issue

3

eissn

0167-5273

issn

1874-1754

pii

S0167-5273(07)00441-X

journal_volume

125

pub_type

信件

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