High Output Heart Failure Following Leadless Pacemaker Implantation.

Tawfiq A Khasawneh, Lyle H Miller, Noah J Blaker, Ramil K Goel, Robert F Hamburger

Abstract readCase Reports

In one paragraph

Article in JACC. Case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Tawfiq A KhasawnehDivision of Cardiovascular Medicine, University of Florida, Gainesville, Florida, USA.

Lyle H MillerDivision of Cardiovascular Medicine, University of Florida, Gainesville, Florida, USA. Electronic address: lylemiller@ufl.edu.

Noah J BlakerDivision of Cardiovascular Medicine, University of Florida, Gainesville, Florida, USA.

Ramil K GoelDivision of Cardiovascular Medicine, University of Florida, Gainesville, Florida, USA; Malcom Randall VA Medical Center, Gainesville, Florida, USA.

Robert F HamburgerDivision of Cardiovascular Medicine, University of Florida, Gainesville, Florida, USA; Malcom Randall VA Medical Center, Gainesville, Florida, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeadless pacemakers have a significantly higher risk of vascular complications than traditional transvenous devices. CASE SUMMARY: An 85-year-old man with permanent atrial fibrillation presented with symptomatic bradycardia. A leadless pacemaker was implanted, and the procedure was complicated by a right common femoral vein pseudoaneurysm which was treated with thrombin injection. Months later, he presented with worsening volume overload related to high output heart failure from an arteriovenous fistula at the access site. After surgical repair of his fistula, the patient had resolution of heart failure. DISCUSSION: Arteriovenous fistula is a relatively rare complication of cardiac catheterization, but its risk is increased with procedures like leadless pacemaker insertion. Such procedures require a larger caliber sheath, which is associated with a significantly higher risk of vascular complications. TAKE-HOME MESSAGES: Leadless pacemakers have a unique set of associated vascular complications that could lead to significant adverse outcomes.

Indexed as

acute heart failurecardiac pacemakervascular disease

Identifiers

PMID41817250

DOI10.1016/j.jaccas.2026.107012

PMCPMC13002522

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