Postoperative AFib predicted by PWPT

Researchers, led by Ahmet Zengin, MD, of Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Center in Üsküdar/Istanbul, Turkey, evaluated a new electrocardiography (ECG) parameter, P-wave peak time (PWPT ), as a predictor of postoperative atrial fibrillation (AFib) in patients undergoing cardiac surgery. Their study, published in the Irish Journal of Medical Sciences, reported that “PWPT in leads DII and V1 can predict the development of [post-operative AFib] in patients undergoing cardiac surgery.

The study included a total of 327 patients undergoing either isolated or combined cardiac surgery. The primary outcome was the development of postoperative AFib. The participants were divided into groups of patients who developed atrial fibrillation after their surgery and those who did not, and their standard P wave and PWPT parameters were compared.

The frequency of postoperative atrial fibrillation was 20.4% (n = 67). In patients who developed atrial fibrillation, the P wave peak time in leads D2 (65.1 ± 11.8) and V1 (57.8 ± 18) was longer than in patients without fibrillation auricular (57.2 ± 10 and 44.8 ± 12.3, respectively; p

The authors emphasized that the prediction of atrial fibrillation in patients undergoing cardiac surgery is crucial, since the development of atrial fibrillation is associated with an increased risk of short- and long-term mortality and morbidity. According to their results, they suggested that the new ECG parameter, PWPT, is an effective marker for predicting postoperative AFib.

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