Hyperkalemia induced T wave oversensing leading to loss of biventricular pacing and inappropriate ICD shocks

被引：29

作者：

Koul, AK ^{[1
]}

Keller, S ^{[1
]}

Clancy, JF ^{[1
]}

Lampert, R ^{[1
]}

Batsford, WP ^{[1
]}

Rosenfeld, LE ^{[1
]}

机构：

[1] Yale Univ, Sch Med, Sect Cardiovasc Med, New Haven, CT 06520 USA

来源：

PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY | 2004年 / 27卷 / 05期

关键词：

T wave oversensing; implantable cardioverter defibrillator; inappropriate shocks;

D O I：

10.1111/j.1540-8159.2004.00509.x

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Inappropriate ICD shocks remain a common problem. Double counting of single ventricular events can occur with biventricular ICDs implanted before univentricular sensing was available. Often this is due to a tachyarrhythmia or loss of left ventricular capture, This report describes a patient who developed hyperkalemia during hemodialysis, received inappropriate ICD shocks and experienced loss of biventricular pacing due to T wave rather than QRS double counting. Oversensing was abolished by reducing the potassium content of the dialysis both. This underscores the need for careful interpretation of saved electrograms to determine the cause for, and appropriate treatment of, device related problems.

引用

页码：681 / 683

页数：3

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