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The delayed effects of irreversible electroporation ablation on nerves.

Abstract：

OBJECTIVE:To evaluate the delayed effects of irreversible electroporation (IRE) ablation on nerves. METHODS:The study was approved by the institutional animal care and use committee. CT-guided IRE-ablation (electric field per distance, 1,500 V/cm; pulse length, 70 μs; number of pulses, 90) of 6 sciatic nerves was performed in 6 pigs that were euthanized 2 months after ablation. The sciatic nerves were harvested immediately after euthanasia for histopathological evaluation. Sections from selected specimens were stained with haematoxylin and eosin (H&E), Masson's trichrome (MT) method for collagen, and immunohistochemistry was performed for S100 and neurofilaments (markers for Schwann cells and axons, respectively). RESULTS:All nerves showed a preserved endoneural architecture and presence of numerous small calibre axons associated with Schwann cell hyperplasia, consistent with axonal regeneration. A fibrous scar was observed in the adjacent muscle tissue, confirming ablation at the site examined. CONCLUSION:After IRE-ablation of nerves, the preservation of the architecture of the endoneurium and the proliferation of Schwann cells may enable axonal regeneration as demonstrated after 2 months in this study.

journal_name

Eur Radiol

journal_title

European radiology

authors

Schoellnast H,Monette S,Ezell PC,Maybody M,Erinjeri JP,Stubblefield MD,Single G,Solomon SB

doi

10.1007/s00330-012-2610-3

subject

Has Abstract

pub_date

2013-02-01 00:00:00

pages

375-80

issue

2

eissn

0938-7994

issn

1432-1084

journal_volume

23

pub_type

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