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Conduction System of the Heart

Conduction System of the Heart

Autorhythmicity is a term that refers to the heart's inherent ability to generate electrical signals and instigate muscle contractions. This self-regulating conduction system within the heart consists of two key components: the pacemaker cells and specialized conducting cells.
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...

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Translational Rabbit Model of Chronic Cardiac Pacing

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Published on: January 6, 2023

Leadless Pacemakers.

Mikhael F El-Chami¹, Faisal M Merchant¹, Angel R Leon¹

¹Department of Medicine, Division of Cardiology-Section of Electrophysiology, Emory University School of Medicine, Atlanta, Georgia.

The American Journal of Cardiology

|November 28, 2016

Summary

This summary is machine-generated.

Leadless pacemakers eliminate transvenous leads and pockets, reducing adverse events. Current devices like Nanostim and Micra show promising clinical trial results compared to traditional pacemakers.

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Area of Science:

Cardiology
Medical Devices
Electrophysiology

Background:

Traditional pacemakers rely on transvenous leads and subcutaneous pockets, which are associated with significant adverse event rates.
Leadless pacing technology offers a novel approach to cardiac pacing, aiming to mitigate complications linked to conventional systems.

Purpose of the Study:

To review the outcomes of investigational device exemption trials for two leadless pacemakers.
To compare the advantages and disadvantages of leadless pacing systems against traditional transvenous pacemakers.

Main Methods:

Review of clinical trial data from investigational device exemption studies.
Comparative analysis of leadless pacemakers (Nanostim, Micra) and traditional transvenous pacemakers.

Main Results:

Leadless pacing systems have demonstrated promising results in clinical trials.
Key advantages include the elimination of transvenous leads and subcutaneous pockets, thereby reducing associated complications.

Conclusions:

Leadless pacemakers represent a significant advancement in cardiac pacing technology.
These systems offer a potentially safer alternative to traditional pacemakers by minimizing procedural and device-related adverse events.