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Paradoxical Effects of Interatrial Conduction Delay in a Hypertrophic Cardiomyopathy Patient in the Long‐Term: Time is a Great Healer
Author(s) -
BAUERNFEIND T.,
CALISKAN K.,
R.N. W.B. VLETTER,
TEN CATE F.J.,
DABIRI L.,
DE GROOT N.,
JORDAENS L.,
SZILITOROK T.
Publication year - 2011
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.2010.01893.x
Subject(s) - medicine , cardiology , hypertrophic cardiomyopathy , sinus rhythm , atrial fibrillation
Paradoxical Effects of Interatrial Conduction Delay . We present a unique case where early proarrhythmic and late antiarrhythmic characteristics of interatrial conduction delay were observed during the long‐term progression of HCM. Occurrence of AT constantly increased as the interatrial conduction delay became more prominent, while the P‐wave width in sinus rhythm and the AT cycle length both showed an instantaneous increase in parallel. As the interatrial delay reached a critical point, the right and left atrial P‐wave became virtually separated, as demonstrated by the findings of ECGs and echocardiography. This phenomenon resulted in the complete cessation of tachycardias. (J Cardiovasc Electrophysiol, Vol. 22, pp. 587‐589 May 2011)