[Comparison between the head-chest leads electrocardiogram and routine leads in the manifest accessory pathways in patients with Wolff-Parkinson-White syndrome].
OBJECTIVE
To observe whether there was difference between the head-chest leads electrocardiogram (HCECGs) and routine lead electrocardiogram (RLECGs) in the manifest accessory pathways in patients with Wolff-Parkinson-White syndrome.


METHODS
HCECGs and RLECGs were recorded simultaneously in patients with Wolff-Parkinson-White syndrome, whose manifest accessory pathways had been confirmed by radiofrequency catheter ablation and intra-cardiac electrophysiology according to the same standard set beforehand. The diagnosis of pathways location was made by analysis of each HCECG and RLECG by two senior physicians in clinical electrophysiology. The diagnostic accuracy of the HCECGs and RLECGs was evaluated by the comparison with that of the intra-cardiac electrophysiology. The delta wave size was also compared between HCECGs and RLECGs.


RESULTS
The diagnostic accuracy in the manifest accessory pathways was 86.2% (50/58) in RLECGs, and 84.4% (49/58) in HCECGs in the 58 patients with Wolff-Parkinson-White syndrome, showing no significant difference between them (P > 0.05), but each delta wave in HCECG was more evident than that in RLECG.


CONCLUSIONS
HCECG and RLECG both have high diagnostic accuracy in the manifest accessory pathways in patients with Wolff-Parkinson-White syndrome.
Zhou
Xiang
X
Department of Pathophysiology, Basic Medicine College, Southern Medical University, Guangzhou, 510515, China. zhouslm93@yahoo.com.cn
Li
Ben-fu
BF
D018780:Body Surface Potential Mapping; D004562:Electrocardiography; D006801:Humans; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis* / Q000503:physiopathology