ArticleThe Journal of innovations in cardiac rhythm management2025
Speckle Tracking Echocardiography in Pediatric and Congenital Heart Disease Patients with the Micra™ Leadless Pacemaker.
Article in The Journal of innovations in cardiac rhythm management, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Letter from the Editor in Chief.The Journal of innovations in cardiac rhythm management · 2025Article
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8 authors.
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Abstract
Right ventricular pacing can cause electrical and mechanical dyssynchrony, potentially leading to pacemaker-induced cardiomyopathy (PICM). This pilot study evaluates speckle tracking echocardiography for the early detection of subclinical left ventricular dysfunction in pediatric and congenital heart disease patients with Micra™ leadless pacemakers (Medtronic, Minneapolis, MN, USA). We analyzed echocardiograms of eight patients (mean age, 15 years; 63% women) with Micra™ pacemakers at implant and 1 month and 1 year post-implant. Data of interest included demographics, pacemaker position, ejection fraction (EF), shortening fraction, and global longitudinal strain (GLS). The pacing percentages varied from <0.1% to 100%, with three patients having burdens of >20%. The mean GLS was -17.99, and the mean EF was 59.6%. A higher EF correlated mildly with more-negative GLS values (
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