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Related Concept Videos

Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...

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Related Experiment Video

Updated: Jun 26, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

A media player causes clinically significant telemetry interference with implantable loop recorders.

Jay P Thaker1, Mehul B Patel, Ashok J Shah

  • 1Thoracic and Cardiovascular Institute, Sparrow Health System, Michigan State University, 405 West Greenlawn, Suite 400, Lansing, MI 48910, USA.

Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing
|January 17, 2009
PubMed
Summary
This summary is machine-generated.

Media players can interfere with implantable loop recorders, potentially disrupting patient-triggered ECG recordings. Patients should keep media players at a distance from their implanted loop recorder to ensure reliable data capture.

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Implantable loop recorders (ILRs) are crucial for diagnosing intermittent cardiovascular symptoms by recording arrhythmias and patient-triggered ECGs.
  • Media players have previously demonstrated interference with pacemaker telemetry.
  • Potential telemetry interference with ILRs is a concern, as it impacts the crucial link for patient-triggered event capture.

Purpose of the Study:

  • To investigate potential interference between a media player and implantable loop recorders.
  • To determine if media player proximity affects the functionality of ILRs, specifically patient-triggered ECG capture.

Main Methods:

  • The study involved 14 patients with Reveal Plus (Medtronic, Inc.) implantable loop recorders.
  • Interference was tested using a third-generation iPod media player, assessing telemetry with the programmer and activator.
  • Attempts were made to capture patient-triggered ECGs with the media player on and off, placed near the ILR and activator.

Main Results:

  • All patients experienced telemetry interference on the programmer screen, showing spikes or blanking.
  • Seven patients experienced failed event capture when the media player was near the activator.
  • In 7 patients, event capture was successful at least once, despite the presence of the media player.

Conclusions:

  • Proximity of a media player to an implantable loop recorder can interfere with capturing patient-triggered events.
  • Patients with ILRs should be advised to maintain distance from media players to prevent potential recording interference.