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Renda Circi
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Right arrow Coronary disease
Asian Cardiovasc Thorac Ann 2006;14:294-299
© 2006 Asia Publishing EXchange Ltd

ORIGINAL CONTRIBUTIONS

Electrocardiographic Changes after Coronary Artery Surgery

Kerim Cagli, MD, Cemal Ozbakir, MD1, Kumral Ergun, MD1, Vedat Bakuy, MD, Renda Circi, MD, Pinar Circi, MD

Cardiovascular Surgery Clinic
1 Cardiology Clinic, Turkiye Yuksek Ihtisas Hospital, Ankara, Turkey

For reprint information contact: Vedat Bakuy, MD Tel: 90 532 626 5104 Fax: 90 312 291 2703 Email: vedatbakuy{at}yahoo.com, Abay Kunanbay Cad. No: 36 D: 2, 06700 Kavaklidere, Ankara, Turkey.

The electrocardiographic changes early after uncomplicated coronary artery bypass with complete revascularization were examined preoperatively and on the 1st and 3rd postoperative days in 53 patients. Heart rate, PR index, corrected PR interval, corrected P dispersion, corrected duration of QRS complex, corrected QT dispersion, corrected QT interval, rhythm, QRS axis, ST-segment changes, and blocks were determined. Changes in new parameters obtained by different combinations of R, S, and T waves were also studied. On the 1st postoperative day, atrial fibrillation was significantly less prevalent, right bundle branch block increased significantly, and QRS axis was significantly more positive but returned to baseline on the 3rd postoperative day. Postoperative heart rate and PR index were significantly higher than preoperative values. In the postoperative period, corrected PR interval was significantly lower, corrected QRS complex duration was significantly shorter, corrected QT interval was significantly longer, and corrected QT dispersion showed a significant increase on the 1st postoperative day. This study defines electrocardiographic changes in uncomplicated patients with complete revascularization. Any deviations from these findings may alert us to the need for further evaluation of an undesired event.






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