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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

759
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...
759
Electrophysiology of Normal Cardiac Rhythm01:19

Electrophysiology of Normal Cardiac Rhythm

2.1K
The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
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Related Experiment Video

Updated: Jun 4, 2025

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

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Short-Term Synchronization of an Intracardiac Leadless Pacemaker With a Transvenous Atrial Pacemaker in a Sedentary

Gilad Margolis1, Tamar K De-Levie1, Maguli S Barel1

  • 1Division of Cardiovascular Medicine, Hillel Yaffe Medical Center, The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel.

JACC. Case Reports
|December 18, 2024
PubMed
Summary

This case study shows successful atrioventricular synchrony achieved with a leadless pacemaker in a patient with prior lead issues. Careful programming and follow-up are crucial for optimal hemodynamic function.

Keywords:
Micra AVatrioventricular synchronyleadless pacemakerpacemaker complications

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Last Updated: Jun 4, 2025

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Area of Science:

  • Cardiology
  • Biomedical Engineering

Background:

  • Recurrent right ventricular lead failures pose a significant challenge in pacemaker management.
  • Atrial transvenous pacemakers can be a complicating factor in leadless pacemaker implantation.

Observation:

  • A patient with a history of right ventricular lead failures and a pre-existing atrial transvenous pacemaker received a leadless pacemaker.
  • The patient experienced significant hemodynamic improvements post-implantation.

Findings:

  • Successful atrioventricular synchrony was achieved at an 8-week follow-up.
  • The leadless pacemaker effectively managed the patient's complex pacing needs.

Implications:

  • This case highlights the feasibility of leadless pacemakers in complex patient profiles.
  • Meticulous initial programming and diligent follow-up are essential for optimizing outcomes and hemodynamic performance in leadless pacemaker patients.