Incorporating Blood Flow in Nerve Injury and Regeneration Assessment

Peripheral nerve injury is a significant public health challenge, with limited treatment options and potential lifelong impact on function. More than just an intrinsic part of nerve anatomy, the vascular network of nerves impact regeneration, including perfusion for metabolic demands, appropriate si...

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Main Authors: Stewart Yeoh, Wesley S. Warner, Samer S. Merchant, Edward W. Hsu, Denes v. Agoston, Mark A. Mahan
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Surgery
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fsurg.2022.862478/full
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author Stewart Yeoh
Wesley S. Warner
Samer S. Merchant
Edward W. Hsu
Denes v. Agoston
Mark A. Mahan
author_facet Stewart Yeoh
Wesley S. Warner
Samer S. Merchant
Edward W. Hsu
Denes v. Agoston
Mark A. Mahan
author_sort Stewart Yeoh
collection DOAJ
description Peripheral nerve injury is a significant public health challenge, with limited treatment options and potential lifelong impact on function. More than just an intrinsic part of nerve anatomy, the vascular network of nerves impact regeneration, including perfusion for metabolic demands, appropriate signaling and growth factors, and structural scaffolding for Schwann cell and axonal migration. However, the established nerve injury classification paradigm proposed by Sydney Sunderland in 1951 is based solely on hierarchical disruption to gross anatomical nerve structures and lacks further information regarding the state of cellular, metabolic, or inflammatory processes that are critical in determining regenerative outcomes. This review covers the anatomical structure of nerve-associated vasculature, and describes the biological processes that makes these vessels critical to successful end-organ reinnervation after severe nerve injuries. We then propose a theoretical framework that incorporates measurements of blood vessel perfusion and inflammation to unify perspectives on all mechanisms of nerve injury.
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spelling doaj.art-2cd604d848254c06829033bbdafd39982022-12-22T02:57:39ZengFrontiers Media S.A.Frontiers in Surgery2296-875X2022-04-01910.3389/fsurg.2022.862478862478Incorporating Blood Flow in Nerve Injury and Regeneration AssessmentStewart Yeoh0Wesley S. Warner1Samer S. Merchant2Edward W. Hsu3Denes v. Agoston4Mark A. Mahan5Department of Neurosurgery, University of Utah, Salt Lake City, Utah, United StatesDepartment of Neurosurgery, University of Utah, Salt Lake City, Utah, United StatesDepartment of Biomedical Engineering, University of Utah, Salt Lake City, Utah, United StatesDepartment of Biomedical Engineering, University of Utah, Salt Lake City, Utah, United StatesDepartment of Anatomy, Physiology, and Genetics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United StatesDepartment of Neurosurgery, University of Utah, Salt Lake City, Utah, United StatesPeripheral nerve injury is a significant public health challenge, with limited treatment options and potential lifelong impact on function. More than just an intrinsic part of nerve anatomy, the vascular network of nerves impact regeneration, including perfusion for metabolic demands, appropriate signaling and growth factors, and structural scaffolding for Schwann cell and axonal migration. However, the established nerve injury classification paradigm proposed by Sydney Sunderland in 1951 is based solely on hierarchical disruption to gross anatomical nerve structures and lacks further information regarding the state of cellular, metabolic, or inflammatory processes that are critical in determining regenerative outcomes. This review covers the anatomical structure of nerve-associated vasculature, and describes the biological processes that makes these vessels critical to successful end-organ reinnervation after severe nerve injuries. We then propose a theoretical framework that incorporates measurements of blood vessel perfusion and inflammation to unify perspectives on all mechanisms of nerve injury.https://www.frontiersin.org/articles/10.3389/fsurg.2022.862478/fullperfusionnerve injuryregenerationperipheral nerveblood vesselSunderland injury classification
spellingShingle Stewart Yeoh
Wesley S. Warner
Samer S. Merchant
Edward W. Hsu
Denes v. Agoston
Mark A. Mahan
Incorporating Blood Flow in Nerve Injury and Regeneration Assessment
Frontiers in Surgery
perfusion
nerve injury
regeneration
peripheral nerve
blood vessel
Sunderland injury classification
title Incorporating Blood Flow in Nerve Injury and Regeneration Assessment
title_full Incorporating Blood Flow in Nerve Injury and Regeneration Assessment
title_fullStr Incorporating Blood Flow in Nerve Injury and Regeneration Assessment
title_full_unstemmed Incorporating Blood Flow in Nerve Injury and Regeneration Assessment
title_short Incorporating Blood Flow in Nerve Injury and Regeneration Assessment
title_sort incorporating blood flow in nerve injury and regeneration assessment
topic perfusion
nerve injury
regeneration
peripheral nerve
blood vessel
Sunderland injury classification
url https://www.frontiersin.org/articles/10.3389/fsurg.2022.862478/full
work_keys_str_mv AT stewartyeoh incorporatingbloodflowinnerveinjuryandregenerationassessment
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AT samersmerchant incorporatingbloodflowinnerveinjuryandregenerationassessment
AT edwardwhsu incorporatingbloodflowinnerveinjuryandregenerationassessment
AT denesvagoston incorporatingbloodflowinnerveinjuryandregenerationassessment
AT markamahan incorporatingbloodflowinnerveinjuryandregenerationassessment