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. 2021 Sep-Oct;21(5):321-323.
doi: 10.1016/j.ipej.2021.06.001. Epub 2021 Jun 10.

Deformation of stylet-driven leads & helix unraveling during acute explant after conduction system pacing

Rajan L Shah  1 , Ridhima Kapoor  2 , Nitish Badhwar  3
Affiliations

Deformation of stylet-driven leads & helix unraveling during acute explant after conduction system pacing

Rajan L Shah et al. Indian Pacing Electrophysiol J. 2021 Sep-Oct.
No abstract available

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Figures

Fig. 1
Fig. 1
Explant of stylet-driven conduction system pacing leads. SDPL = stylet-driven pacing lead; H&E = hematoxylin and eosin. Fixation of a stylet-driven pacing lead (SDPL), achieving (A) selective conduction system pacing; His bundle potential is recorded on the SDPL. Due to suboptimal thresholds, attempts to revise result in unraveling of the (B) Ingevity+ and (D) Tendril helices; the leads remained fixated to the septum withstanding counter wrench turns, manipulation of the stylet, gentle retraction, and manual rotation of the SDPL and sheath. (C, E) Ex vivo view of the malformed SDPL helices and attached myocardial tissue following forceful traction and explant of the leads. (F) Histological correlation under H&E stain, of the Tendril lead biopsy (E): band-like region of hypocellular fibrotic tissue (∗) surrounded by myocardial cells (∗∗); note the area of myocardium (∧) surrounded by fibrotic tissue, which may represent penetrating portions of conduction system cells encapsulated by the central fibrous body.
See this image and copyright information in PMC

References

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