Anodal Capture May Prevent Cardiac Resynchronization Therapy from Working Effectively. A Case Report of Left Ventricular Lead Dislodgement

Kazunori Kashiwase; Hiroshi Kobayashi; Mitsuru Wada; Hiroyuki Nakanishi; Akio Hirata; Yasunori Ueda

doi:10.4020/jhrs.27.150

Case Reports

Anodal Capture May Prevent Cardiac Resynchronization Therapy from Working Effectively. A Case Report of Left Ventricular Lead Dislodgement

Kazunori Kashiwase ^†, Hiroshi Kobayashi, Mitsuru Wada ^†, Hiroyuki Nakanishi ^†, Akio Hirata ^†, Yasunori Ueda ^†

著者情報

キーワード: CRT, Anodal pacing, Lead dislocation, LV pacing, Biventricular pacing

ジャーナルフリー

2011 年 27 巻 2 号 p. 150-153

DOI https://doi.org/10.4020/jhrs.27.150

詳細

抄録

A 78-year-old man was implanted with a cardiac resynchronization therapy defibrillator. One month later, chest X-ray and electrocardiography suggested left ventricular (LV) lead dislodgement. However, the LV lead pacing threshold obtained by a programmer was unchanged because anodal capture had developed, which made it difficult to confirm the LV lead dislodgement. Radiographs obtained in the catheterization laboratory revealed that the tip of the LV lead had dislodged into the right atrium. The LV lead was relocated into another lateral coronary vein. Electrocardiography showed the QRS duration to be shorter than prior to this revision.

責任著者(Corresponding author)

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