Document Detail

Persistent atrial standstill due to atrial inexcitability. An electrophysiological and histological study.
MedLine Citation:
PMID:  1185887     Owner:  NLM     Status:  MEDLINE    
Electrophysiological and histopathological examinations were carried out in 2 patients with persistent atrial standstill. Intracardiac studies revealed that atrial standstill was due to atrial inexcitability. It was demonstrated in both patients that prolongation of the H-V interval and the duration of H deflection was associated with complete right bundle branch block and that the escape rhythm was an A-V junctional origin. Histologically, marked fibrosis of the right atrium and fibrous strands in the right ventricle were demonstrated in a 69-year-old man with idiopathic cardiomyopathy. In another female patient with peripartum heart disease aged 40 years, there was moderate degeneration of the myocardium in the right ventricle. The results of electron microscopic observations are also presented. The importance of the examination of His bundle electrography in persistent atrial standstill and the diagnostic criteria and treatment of this lesion are discussed.
H Tanaka; Y Atsuchi; N Tanaka; S Nishi; T Kanehisa
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Japanese heart journal     Volume:  16     ISSN:  0021-4868     ISO Abbreviation:  Jpn Heart J     Publication Date:  1975 Nov 
Date Detail:
Created Date:  1976-01-17     Completed Date:  1976-01-17     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0401175     Medline TA:  Jpn Heart J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  639-53     Citation Subset:  IM    
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MeSH Terms
Arrhythmias, Cardiac / diagnosis,  pathology,  physiopathology*
Bundle of His / physiopathology
Cardiomyopathies / complications
Connective Tissue / ultrastructure
Heart Atria
Heart Failure / complications
Middle Aged
Myocardium / pathology*
Puerperal Disorders
Sarcoplasmic Reticulum / ultrastructure
Tricuspid Valve Insufficiency / complications

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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