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Related Experiment Video

Updated: Jun 12, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
16:40

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Published on: February 28, 2012

[Is intraoperative ICD-testing still necessary?].

C Mewis1, H-R Neuberger, A Buob

  • 1Klinik für Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, 66421, Homburg/Saar, Deutschland. christian.mewis@uks.eu

Herzschrittmachertherapie & Elektrophysiologie
|June 4, 2010
PubMed
Summary
This summary is machine-generated.

Routine intraoperative implantable cardioverter-defibrillator (ICD) testing may not be necessary for all patients. Evidence suggests that current ICD technology is highly effective, and testing carries risks and may not be clinically justified for every individual.

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Area of Science:

  • Cardiology
  • Biomedical Engineering

Context:

  • Intraoperative testing of implantable cardioverter-defibrillators (ICDs) is a traditional practice to ensure device efficacy.
  • Advancements in defibrillator technology have improved sensing, detection, and defibrillation capabilities.

Purpose:

  • To review the arguments for and against routine intraoperative defibrillation threshold testing in all patients receiving ICDs.
  • To evaluate the necessity of current testing protocols in light of technological progress.

Summary:

  • Current ICDs are highly effective, defibrillating most patients at implant.
  • Factors such as patient condition, cardiac disease severity, ischemia, medication, and ICD system specifics (lead type/placement) complicate testing.
  • Testing methods carry a risk of false negatives, as the a priori probability of a positive test result is over 95%.

Impact:

  • Suggests that routine intraoperative ICD testing may be an outdated practice.
  • Highlights the need for prospective randomized studies to establish evidence-based guidelines for ICD testing.
  • Advocates for moving away from traditional testing protocols towards a more personalized, evidence-driven approach.