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The spectrum of right bundle branch block as manifested in electrocardiographic body surface potential maps.

Abstract：

:A wide spectrum of types of right bundle branch block (RBBB) were studied utilizing the body surface potential maps (BSPMs) of 37 children. Although the spectrum varied from very advanced RBBB to minimal partial RBBB, a common diagnostic feature was the absence of evidence for right ventricular breakthrough in the maps of all patients. Evidence for left ventricular breakthrough was usually seen, the exceptions being five patients with partial RBBB and one of 29 with advanced RBBB. The appearance of evidence for activation of the right ventricle by way of the septum was late in onset. In addition, especially in advanced RBBB, the BSPM pattern reflecting right ventricular activation was prolonged in such a manner that it appeared that utilization of right ventricular Purkinje tissue was minimal and inefficient. The BSPMs during ST-T, which were of inverse polarity, reflect repolarization that is determined by the sequence of depolarization to a greater degree than in the normal. In general, the more extensive the surgery, the more advanced the RBBB (as reflected in the BSPM), although there were exceptions. The one parameter that linked all patients with RBBB together was the absence of evidence for right ventricular epicardial breakthrough.

journal_name

J Electrocardiol

journal_title

Journal of electrocardiology

authors

Liebman J,Rudy Y,Diaz P,Thomas CW,Plonsey R

doi

10.1016/s0022-0736(84)80070-9

subject

Has Abstract

pub_date

1984-10-01 00:00:00

pages

329-46

issue

4

eissn

0022-0736

issn

1532-8430

journal_volume

17

pub_type

杂志文章

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