September 10, 2026 · JACC. Clinical electrophysiology · DOI: 10.1016/j.jacep.2026.07.028

Frequency and Extent of Leadless Pacemaker Encapsulation

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The authors aimed to assess the frequency and characteristics of leadless pacemaker (LP) encapsulation using contrast-enhanced computed tomography (CT) in patients with implanted LPs. Their study found that encapsulation was common, occurring in 85% of patients, with varying severity and involvement of surrounding anatomical structures, which could complicate retrieval procedures. The findings suggest that CT imaging is a valuable tool for identifying potential challenges related to LP retrieval.

Andrew E Andreae, Michael R Harowicz, Lynne M Koweek, Travis S Henry, Sana M Al-Khatib, Camille Frazier-Mills, Daniel J Friedman, Sean D Pokorney, Zak Loring, Justin B Solomon, Jonathan P Piccini

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