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Updated: Jun 22, 2026

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
06:10

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock

Published on: June 12, 2021

[Clinical analysis of inappropriate shock of implantable cardioverter defibrillators]

Ling Cheng1, Ru-qiong Nie, Jing-feng Wang

  • 1Department of Cardiology, the Second Affiliated Hospital of Sun Yat-sen University, Guangzhou 510120, China.

Zhonghua Nei Ke Za Zhi
|June 3, 2009
PubMed

Insights

Implantable cardioverter defibrillators (ICDs) can cause inappropriate discharges, most commonly due to supraventricular tachyarrhythmias (SVT) in the first year post-implantation. A history of atrial fibrillation increases this risk.

Area of Science:

  • Cardiology
  • Medical Devices
  • Electrophysiology

Context:

  • Implantable cardioverter defibrillators (ICDs) are crucial for managing life-threatening ventricular arrhythmias.
  • Inappropriate ICD discharges represent a significant clinical challenge, impacting patient quality of life.
  • Understanding the incidence and causes of these events is vital for optimizing device therapy.

Purpose:

  • To determine the incidence and primary causes of inappropriate implantable cardioverter defibrillator (ICD) discharges.
  • To identify predictors for inappropriate ICD discharges.
  • To analyze ICD performance and patient outcomes in a clinical setting.

Summary:

  • This study analyzed 43 patients with ICDs, revealing an inappropriate discharge incidence of 16.3%.
  • Supraventricular tachyarrhythmias (SVT) were the leading cause of inappropriate discharges, followed by device noise.
  • Most inappropriate discharges occurred within the first year, with a history of atrial fibrillation identified as a key predictor.

Impact:

  • Findings highlight the need for improved ICD programming and patient selection to minimize inappropriate shocks.
  • Identifying patients at higher risk, such as those with a history of atrial fibrillation, allows for proactive management strategies.
  • This research contributes to enhancing the safety and efficacy of ICD therapy for arrhythmia management.
Abstract

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