Related Experiment Video

Updated: Aug 7, 2026

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

A coroner's request for closure: the value of the stored electrogram

Irene H Stevenson1, Harry G Mond

  • 1Department of Cardiology, The Royal Melbourne Hospital, Victoria, Australia.

Pacing and Clinical Electrophysiology : PACE
|June 21, 2006
PubMed

Insights

Pacemaker diagnostics aided post-mortem examination. Pacemaker interrogation revealed a fatal ventricular arrhythmia, not device malfunction, as the cause of sudden cardiac death in a patient with a ventricular pacemaker.

Area of Science:

  • Cardiology
  • Medical Device Technology
  • Forensic Pathology

Background:

  • Pacemaker diagnostics are crucial for troubleshooting device function.
  • Sudden cardiac death necessitates thorough investigation into potential causes.
  • His bundle ablation is a procedure used to treat certain arrhythmias.

Observation:

  • A 58-year-old male patient with a single-chamber ventricular pacemaker and prior His bundle ablation experienced sudden death.
  • Post-mortem pacemaker interrogation was performed.

Findings:

  • Pacemaker interrogation excluded device malfunction as the cause of death.
  • The diagnostic data indicated a fatal ventricular arrhythmia as the primary cause of death.

Implications:

  • Pacemaker diagnostics provide valuable insights even after patient demise.
  • This case highlights the importance of considering arrhythmias in sudden cardiac death evaluations.
  • Understanding pacemaker data can refine post-mortem analyses and improve patient care strategies.

More Related Videos

Multi-electrode Array Recordings of Human Epileptic Postoperative Cortical Tissue13:14

Multi-electrode Array Recordings of Human Epileptic Postoperative Cortical Tissue

Published on: October 26, 2014

Confirmation of Myocardial Ischemia and Reperfusion Injury in Mice Using Surface Pad Electrocardiography09:23

Confirmation of Myocardial Ischemia and Reperfusion Injury in Mice Using Surface Pad Electrocardiography

Published on: November 24, 2016

Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin to...
Bode Plots Construction01:24

Bode Plots Construction

The Bode plot is an essential tool in control system analysis, mapping the frequency response of a system through a magnitude plot and a phase plot, both against a logarithmic frequency axis. To construct a Bode plot, consider the transfer function H(ω):
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...