FRONTAL QRS-T AÇISI İLE AMBULATUAR 24 SAAT HOLTERDE PREMATÜR VENTRİKÜLER KONTRAKSİYON YÜKÜ ARASINDAKİ İLİŞKİ

Aim: Frequent premature ventricular contractions (PVCs) can cause impaired function or dilatation of cavities. The frontal plane QRS-T [f(QRS-T)] angle is an indicator instability in the electrophysiological properties myocardium and associated with arrhythmias. present study aimed to investigate whether f(QRS-T) angle, as a marker repolarization heterogeneity, predicts contraction burden ambulatory 24-hour Holter.Methods: included 100 patients. patients were divided into two groups ‘frequent PVC’ ‘seldom according their PVC Holter monitoring. Laboratory some electrocardiography parameters, including compared between groups.Results: Frontal (63.34±37.86° vs 23.46±14.29° p<0.001) was found be wider group. F(QRS-T) ≥ 34° had sensitivity 82.2% specificity 80% indicating load (AUC: 0.887 (0.824-0.950). In addition, positive correlation (r:0.429 p<0.001).Conclusion: widening could perhaps considered surrogate increased Measuring 12-lead ECG may warning sign for burden.