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Coronary Collateral Circulation: Any Effect on P-Wave Dispersion?

Department of Cardiology, Faculty of Medicine, Inonu University, Malatya

Okan Turgut, MD

Faculty of Medicine, Cumhuriyet University, Sivas Turkey, okanturgut{at}lycos.com

Kenan Yalta, MD

Faculty of Medicine, Cumhuriyet University, Sivas Turkey

Mehmet B. Yilmaz, MD

Faculty of Medicine, Cumhuriyet University, Sivas Turkey

Ramazan Ozdemir, MD

Department of Cardiology, Faculty of Medicine, Inonu University, Malatya

Necip Ermis, MD

Department of Cardiology, Faculty of Medicine, Inonu University, Malatya

Alpay T. Sezgin, MD

Department of Cardiology, Faculty of Medicine, Inonu University, Malatya

Ertan Yetkin, MD

Department of Cardiology, Faculty of Medicine, Inonu University, Malatya

Izzet Tandogan, MD

Faculty of Medicine, Cumhuriyet University, Sivas Turkey

Ahmet Yilmaz, MD

Faculty of Medicine, Cumhuriyet University, Sivas Turkey

Coronary collateral circulation determines the severity of ischemic myocardial damage. Increased P-wave dispersion is an independent predictor for atrial fibrillation. Consistent evidence is little about the relation between coronary collateral circulation and arrhythmia risk. In this article, the effect of coronary collateral circulation on P-wave dispersion was evaluated. Collateral grade and P-wave dispersion were ascertained in 100 patients with 85% diameter stenoses in left anterior descending or right coronary arteries. Left ventricular function score was also determined in all patients. Coronary collateral circulation was absent in 32 patients, whereas 68 patients had coronary collateral circulation. Patients with collateral grade 1 had greater left ventricular function score than did patients with collateral grade 0 (P = .048). However, there was no significant difference between P-wave dispersion of patients with and without coronary collateral circulation (P = .45). The presence of coronary collateral circulation failed to exert a beneficial decreasing effect on P-wave dispersion.

Key Words: atrial fibrillation • coronary artery disease • coronary collateral circulation • electrocardiography • P-wave dispersion

This version was published on August 1, 2008

Angiology, Vol. 59, No. 4, 448-453 (2008)
DOI: 10.1177/0003319707309303


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