Literature DB >> 24118140

Electrocardiographic findings in accessory right precordial leads in adults and seniors with notched S waves in lead V1-a preliminary study.

Zhan Zhong-qun1, Kjell C Nikus, Andrés Ricardo Pérez-Riera, Wang Chong-quan.   

Abstract

BACKGROUND: Atypical right bundle branch block (RBBB) may present with an rS pattern and notched S wave in lead V1 . The notched S wave may represent slowed conduction or delayed activation of the right ventricular conduction system or ventricular myocardium.
METHODS: We retrospectively analyzed the QRS patterns in accessory right precordial leads (from V3 R to V5 R) in 15 adults/senior individuals with notched S wave in lead V1 .
RESULTS: In the right accessory precordial leads, 13 showed triphasic QRS pattern with final R' wave in their QRS complexes. This QRS pattern in association with notched S wave in lead V1 is suggestive of the presence of RBBB (incomplete or complete).
CONCLUSIONS: A notched S wave in lead V1 and in the right precordial accessory leads associated with a final R' wave suggests the possibility of concealed RBBB (incomplete or complete). ©2013 Wiley Periodicals, Inc.

Entities:  

Keywords:  notched S wave in V1; right bundle branch block; right precordial accessory leads

Mesh：

Year:  2013        PMID： 24118140      PMCID： PMC6932670          DOI： 10.1111/anec.12114

Source DB:  PubMed          Journal:  Ann Noninvasive Electrocardiol        ISSN： 1082-720X            Impact factor:   1.468


  16 in total

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