Unipolar diathermy applied via the terminal pin to release an entrapped LBBAP lead helix: A case report

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ID: 317809
2026
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Abstract
Structured Abstract Background Left bundle branch area pacing (LBBAP) is increasingly being adopted as a physiological solution to both bradycardia and resynchronisation indications. Deep septal positioning of both stylet-less and stylet driven leads can be complicated by unexpected entrapment in myocardial or fibrotic tissue, making advancement or removal of the lead challenging. Case Summary A patient undergoing LBBAP implantation demonstrated suboptimal electrical parameters after initial lead advancement. Both helical retraction and counter clockwise rotation was unsuccessful in displacing the lead for a second attempt. In line with the only other case study in this situation, 3S of 40W unipolar diathermy was applied to the terminal pin, allowing electrical current to dissipate through the lead tip-tissue interface. This resulted in immediate release of the helix and successful extraction of the lead without mechanical or clinical complications. Discussion Entrapment of the helix during LBBAP is a recognised procedural challenge but inability to overcome this with mechanical disengagement techniques is rare. This occurrence is more likely with extendable helix leads. This case demonstrates a challenging scenario whereby the helix could not be successfully retracted and the lead removed. The novel rescue technique was adapted from a previous case and reinforces the feasibility of this technique.
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Authors James Clark, Lewis Holmes, Owen L. Williams, Lianne Easson, Victoria Brooks
Journal European Heart Journal - Case Reports
Year 2026
DOI
10.1093/ehjcr/ytag477
URL
https://doi.org/10.1093/ehjcr/ytag477
Keywords Keywords not found

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