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Related Experiment Video

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Apparent acute reversible right ventricular pacing-induced left ventricular dysfunction.

Charles C Te¹, Stavros Stavrakis, Pedro Lozano

¹Department of Medicine, Cardiovascular Section, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73190, USA. charles-te@ouhsc.edu

Journal of Cardiovascular Electrophysiology

|November 8, 2012

Summary

This summary is machine-generated.

Pacemaker battery depletion can cause a mode switch, leading to temporary left ventricular dysfunction. This condition resolved when right ventricular pacing was deactivated, a phenomenon previously unreported.

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Area of Science:

Cardiology
Biomedical Engineering
Medical Device Technology

Background:

Dual-chamber pacemakers are used for sinus node dysfunction.
Pacemaker dependency and mode switching are critical considerations in device management.
Battery depletion necessitates device replacement or reprogramming.

Observation:

A 70-year-old male experienced acute left ventricular dysfunction.
This dysfunction correlated with right ventricular apical pacing during pacemaker battery depletion.
A mode switch to VVI pacing was observed due to battery depletion.

Findings:

Right ventricular apical pacing induced left ventricular dysfunction.
The left ventricular dysfunction was immediately reversible upon cessation of right ventricular pacing.
This represents the first reported instance of pacemaker-induced transient left ventricular dysfunction due to mode switching.

Implications:

Highlights the potential for pacemaker programming and battery status to impact cardiac function.
Suggests careful evaluation of pacing modes and battery life in patients with pre-existing or developing left ventricular issues.
Underscores the importance of recognizing and managing pacemaker-related complications.