4. Efficacy of electrophysiological studies and radiofrequency ablation for treatment of Wolf-Parkinson-White syndrome

Le Van Cuong, Duong Quang Hiep

Main Article Content

Abstract

To investigate the efficacy of electrophysiological (EP) studies and radiofrequency (RF) ablations in the diagnosis and treatment of arrhythmia of Wolf-Parkinson-White (WPW) syndrome at Thanh Hoa Province General hospital from July 2019 to September 2020. We studied 39 WPW syndrome patients assigned to observe electrophysiology EP studies and radiofrequency ablation. The average age was 42.5 ± 15.0 years old (male 48.7%). WPW syndrome type A arrhythmias was 74.4%, type B was 25.8%. The most common locations for accessory pathways were the left free wall 69.3%, the septal (25.6%), and finally the right free wall (5.1%). Among 39 cases of WPW syndrome, 92.3% had successful ablation with 2.6% recurrence. No serious complication was recorded after the procedure. The average duration of the procedure was 87.5 ± 37.5 minutes. The average time of X-ray-exposure was 23.1 ± 10.8 minutes. The average time of RF ablation was 111.3 ± 32.1 seconds. The average power was 30.4 ± 5.05 W, temperature 62.9 ± 8.1 degrees Celsius, impedance 99.6 ± 12.7Ω. This result shows that electrophysiological studies and radiofrequency ablation are effective tools for accurate diagnosis ofthe accessory pathway location and treatment of arrhythmias in WPW syndrome; there is a high rate of success and low rate of complications.

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References

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