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File
language
eng
Attribute
case report
Author
TUMENBAYAR Maidar
Watanabe Nobuhide
Sugamori, Takashi
Yamaguchi Kazuto
Nakamura, Taku
Ito Shinpei
Adachi, Tomoko
Nakashima, Ryuma
Yoshitomi, Hiroyuki
Description
Atrioventricular junctional ablation (AVJA) combined with biventricular (BiV) pacing is an effective treatment for atrial fibrillation (AF) and rapid ventricular response associated with heart failure. We report the case of a 64-year-old man with dilated cardiomyopathy and AF who underwent AVJA and BiV pacing. Activation imaging is a recently developed novel imaging technique that uses threedimensional speckle tracking echocardiography, which visualizes the left ventricular (LV) intra-ventricular propagation pattern of regional contractions. After AVJA and BiV pacing therapy, interventricular mechanical activation time (IVAT) quantified as the time difference from the QRS onset to regional activation in the 16 segments decreased from 209 ± 92 msec to 177 ± 88 msec. LV free-wall (basal anterior and lateral wall) IVAT values were shorter than those at baseline. Activation imaging appears to be a feasible technique for assessing LV mechanical dyssynchrony.
Subject
Dilated cardiomyopathy
three-dimensional echocardiography
speckle tracking
biventricular pacing
Journal Title
Shimane journal of medical science
Volume
31
Issue
2
Start Page
59
End Page
64
ISSN
03865959
ISSN(Online)
24332410
Published Date
2015-02-01
NCID
AA00841586
Publisher
Shimane University Faculty of Medicine
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Faculty of Medicine
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