Right Bundle Branch Block Like Pattern Recorded in Right Ventricular Endocardial Pacing
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概要
- 論文の詳細を見る
Right bundle branch block (RBBB) pattern recorded during right ventricular (RV) endocardial pacing should be given special attention in terms of safe RV pacing or lead malposition, e.g. left ventricular pacing or coronary venous pacing, even for patients with no symptoms. Paced electrocardiograms from 47 consecutive patients with a pacemaker implanted were studied. Four patients (8.5%) were found to have RBBB pattern recorded in precordial V<SUB>1</SUB> and V<SUB>2</SUB> leads in the usual 4<SUP>th</SUP> intercostal space. All of these patients showed left bundle branch block (LBBB) pattern in limb leads. When precordial V<SUB>1</SUB> and V<SUB>2</SUB> leads in the 5<SUP>th</SUP> space were recorded, RBBB pattern changed to LBBB pattern. Biplane chest X-ray film and echocardiogram, especially 3D echo mode, confirmed that tips of pacing leads of the 4 patients were located in the distal RV septum or the apex. RBBB pattern observed during RV endocardial pacing usually represents safe RV endocardial pacing rather than perforation or malposition of pacing leads.
- 日本不整脈学会の論文
著者
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Miyataka Kazuhiko
Department Of Cardiology Saiseikai Chuwa Hospital
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Nakamura Takehiko
Department Of Dermatology Kumamoto National Hospital
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Ohnuki Masahiro
Department Of Cardiology Saiseikai Chuwa Hospital
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Kohnoike Yoshizumi
Department Of Internal Medicine Heisei Memorial Hospital
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Tsujimoto Masayuki
Department Of Clinical Pharmacy Faculty Of Pharmaceutical Sciences Kyoto Pharmaceutical University
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Ohnishi Yoshinobu
Department Of Internal Medicine Tenri City Hospital
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Shiroyama Reirou
Department of Internal Medicine, Heisei Memorial Hospital
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- Right Bundle Branch Block Like Pattern Recorded in Right Ventricular Endocardial Pacing