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Effect of CABG on P-wave Dispersion and the Relationship between AF and P-wave Dispersion

AUTHORS

Shahdad Khosropanah 1 , * , MH Nemati 2 , O Bazargan Lari 1 , N Zare 3

AUTHORS INFORMATION

1 Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

2 Department of Cardiac surgery, Shiraz University of Medical Sciences, Shiraz, Iran

3 Department of Biostaistics, Shiraz University of Medical Sciences, Shiraz, Iran

How to Cite: Khosropanah S, Nemati M , Bazargan Lari O , Zare N . Effect of CABG on P-wave Dispersion and the Relationship between AF and P-wave Dispersion, Int Cardio Res J. 2009 ; 3(2):e68401.

ARTICLE INFORMATION

International Cardiovascular Research Journal: 3 (2); e68401
Published Online: June 30, 2009
Article Type: Research Article
Received: March 10, 2018
Accepted: June 30, 2009

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Abstract

Background: Atrial fibrillation (AF) is a common complication after CABG. It is associated with doubling of
mortality rate and increased incidence of CHF, MI, renal insufficiency, and stroke which prolongs hospital stay
and is associated with increased rate of re-hospitalization.
In this study we examined the effect of CABG on atrial electrophysiology as reflected by P-wave dispersion.
Patients and Methods: A total of 197 consecutive patients undergoing elective CABG due to CAD were monitored
for 4 days in hospital and their daily ECGs were obtained. .Differences in P-wave dispersions were compared
between the patients who developed AF and those maintaining sinus rhythms.
Results: Post-operative AF occurred in 18.2% of patients, who showed statistically significant increase of P
wave duration, in lead aVL of pre-op ECG (79.4±25.0 vs 70.1±22.4; P = 0.032). In addition, P wave dispersion
was significantly increased on first and third days of post-op period (77.2±22.0 vs 67.5±22.2; P=0.018) and
(69.4±22.7 vs 61.1±20.3; P= 0.035) respectively, in those developing AF rhythm compared to patients remaining
in sinus rhythm .
Conclusion: Our result indicates that P-wave dispersion is a risk factor for development of AF in patients undergoing
CABG.

Keywords

P-wave Dispersion AF CABG

© 0, Shiraz University of Medical Sciences.

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References

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