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Published on: February 11, 2022
Using Open-Window Mapping Strategy for Wolff-Parkinson-White Syndrome in a Patient With Dextrocardia With Situs
Ding-Sen Huang1, Yueh-Chin Wang2, Yung-Lung Chen1,3
1Division of cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
Abstract:
The coexistence of dextrocardia and Wolff-Parkinson-White (WPW) syndrome is exceedingly rare and presents unique challenges for electrophysiological mapping and ablation. We report the first successful radiofrequency catheter ablation guided by three-dimensional open-window mapping (OWM) in such a patient. Pre-procedural right-sided electrocardiography analyzed with the EASY-WPW algorithm predicted a right inferoparaseptal accessory pathway, consistent with OWM localization. Despite reversed cardiac anatomy, precise mapping enabled effective ablation without complications. This case illustrates the feasibility of three-dimensional OWM-guided ablation in complex anatomic variants and highlights the complementary role of the EASY-WPW algorithm in accurately predicting accessory pathway locations before intervention.
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