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The localization of accessory pathways by electrophysiology and epicardial mapping in patients with wpw syndrome



The localization of accessory pathways by electrophysiology and epicardial mapping in patients with wpw syndrome



Zhonghua Xinxueguanbing Zazhi 15(5): 266-270, 310



26 cases with Wolff-Parkinson-White syndrome underwent conventional electrophysiology study (EPS) by introducing 3 to 4 electrode catheters through one percutaneous access. Of 26 cases, 10 underwent epicardial mapping (EPM) on 21 selected epicardial points during surgical interruption of accessory pathway (AP). After the signals from the epicardium were processed with a computer system, the maps of epicardial activation sequence were drawn out automatically. For conclusion, it was believed that (A) The procedure of introducing multiple electrode catheters through one percutaneous access was a safe, simple way and worth to be recommended domestically. (B) The conjunction of electrodes in esophagus and left lower pulmonary artery may have practical value in AP localization, especially when difficulty was met in introducing electrode catheter into coronary sinus and when the patient is critically ill. (C) The two EPS findings proposed in this paper were practically significant in localizing septal AP, which had not been described clearly in the previous literature. (D) The computerized EPM system developed by our co-operation group is much superior to manual mapping both in speed and accuracy.

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Accession: 006711451

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