Evaluation of electrocardiographic parameters in patients who had lung resections

Abstract

Background/Aim: The anatomic location of the heart in the mediastinal space may change and significant electrophysiological changes may appear after pneumonectomy, lobectomy, and segmentectomy. The aim of the present study was to perform a comprehensive investigation of electrocardiographic alterations after lung resection. Methods: In this retrospective cohort study, sixty-six patients (9 females, 57 males) who had lung resections were enrolled. Electrocardiograms of preoperative (24 hours before operation) and postoperative periods (after operation 7 (2) days) were analyzed. Result: Postoperative mean Pmin and QRS duration levels were lower than the respective preoperative values. In comparison with preoperative values, postoperative mean P dispersion, QTmax, QTmin, QT mean, QTd, QTc, QTc dispersion, JT, JTc, mean Tpe/QTmean, mean Tpe/QTc ratio (%), and mean Tpe/JT ratio (%) levels were found to be significantly higher. Postoperative mean pulse, mean Pmax, mean PR interval, mean RR, and mean Tpe/JTc ratio were not significantly different when compared with preoperative levels. Conclusion: Alterations in electrocardiography parameters reflecting the electrophysiology of the heart since heart position basically changes after lung resection may appear.

Keywords

• Electrocardiography
• Pneumonectomy
• QRS
• P dispersion

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