Inappropriate ICD discharges due to "triple counting" during normal sinus rhythm

被引：3

作者：

Khan, Ejaz

Voudouris, Apostolos

Shorofsky, Stephen R.

Peters, Robert W.

机构：

[1] Dept Vet Affairs Med Ctr, Div Cardiol, Baltimore, MD 21201 USA

[2] Univ Maryland, Sch Med, Dept Med, Div Cardiol, Baltimore, MD 21201 USA

来源：

JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY | 2006年 / 17卷 / 02期

关键词：

implantable cardioverter defibrillator (ICD); hyperkalemia; oversensing; ventricular tachycardia; renal insufficiency;

D O I：

10.1007/s10840-006-9062-0

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Objective To describe the clinical course of a patient with multiple ICD shocks in the setting of advanced renal failure and hyperkalemia. Methods The patient was brought to the Electrophysiology Laboratory where the ICD was interrogated. Results The patient was found to be hyperkalemic (serum potassium 7.6 mg/dl). Analysis of stored intracardiac electrograms from the ICD revealed "triple counting" (twice during his QRS complex and once during the T wave) and multiple inappropriate shocks. Correction of his electrolyte abnormality normalized his electrogram and no further ICD activations were observed. Conclusion Electrolyte abnormalities can distort the intracardiac electrogram in patients with ICD's and these changes can lead to multiple inappropriate shocks.

引用

页码：153 / 155

页数：3

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