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Review
. 2024 Mar 27;25(4):118.
doi: 10.31083/j.rcm2504118. eCollection 2024 Apr.

New Insights into Pacing Induced Cardiomyopathy

Sung Soo Kim  1 , Hyung Wook Park  2
Affiliations
Review

New Insights into Pacing Induced Cardiomyopathy

Sung Soo Kim et al. Rev Cardiovasc Med. .

Abstract

Pacing induced cardiomyopathy (PICM) can occur as a complication due to pacing the right ventricle. Its precise definition varies across different studies, leading to uncertainty as to the best approach for managing this entity. More than 10% of patients who undergo chronic right ventricular pacing develop PICM. Risk factors associated with PICM include reduced left ventricular ejection fraction (LVEF), the proportion of right ventricular pacing, and paced QRS duration. The main approach to treating PICM has been upgrading to biventricular pacing cardiac resynchronization therapy when the LVEF decreases. However, emerging evidence suggest that conduction system pacing might provide an opportunity to manage PICM.

Keywords: artificial; heart failure; pacemaker.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Fig. 1.
Fig. 1.
Definition of pacemaker induced cardiomyopathy. PICM, pacing-induced cardiomyopathy; EF, ejection fraction; RV, right ventricle; HF, heart failure; AF, atrial fibrillation; LVEF, left ventricular ejection fraction.
Fig. 2.
Fig. 2.
Right ventricular pacing induced left ventricular dyssynchrony. LV, left ventricular.
See this image and copyright information in PMC

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