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Characteristic findings on the standard 12-lead ECG in patients with the fasciculoventricular Mahaim fiber.

Abstract：

:Standard 12-lead electrocardiograms with a Q wave in lead V1 were obtained from 32 subjects without organic cardiac disease and analyzed for features that might characterize an abnormal atrioventricular conduction through the fasciculoventricular Mahaim fiber. Following an infusion of ajmaline, the Q wave in V1 vanished abruptly and changed to an rS pattern in the 12 ajmaline responders. Discriminant analysis was performed to distinguish the ajmaline responders from the others. The explanatory variables were number of precordial leads with the abnormal Q wave, existence of the septal q waves, existence of the slurring of the Q wave in V1, existence of clockwise rotation, and existence of high voltage (RV5 + SV1 > 3.5 mV). Three variables, the absence of the septal q waves, the presence of the slurring, and the absence of clockwise rotation, were found to predict a positive response to ajmaline (discriminant probability = 77%). These findings associated with the Q wave in V1 suggest that the fasciculoventricular fiber may be present.

journal_name

J Electrocardiol

journal_title

Journal of electrocardiology

authors

Miyaguchi K,Tsuzuki J,Yokota M,Hayashi H

doi

10.1016/0022-0736(92)90030-4

keywords:

subject

Has Abstract

pub_date

1992-10-01 00:00:00

pages

253-61

issue

4

eissn

0022-0736

issn

1532-8430

journal_volume

25

pub_type

杂志文章

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