Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic pain

Post-herpetic neuralgia (PHN) is of particular interest to the algologist because it can be produced by all the pathogenetic mechanisms of neuropathic pain, singly or variously associated. PHN is caused by reactivation in the spinal or cranial ganglia of the varicella virus, which initiates differen...

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Main Author: Guido Orlandini, MD
Format: Article
Language:English
Published: Publiediting 2024-06-01
Series:Pathos
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Online Access:https://www.pathos-journal.com/2024_1_246.html
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author Guido Orlandini, MD
author_facet Guido Orlandini, MD
author_sort Guido Orlandini, MD
collection DOAJ
description Post-herpetic neuralgia (PHN) is of particular interest to the algologist because it can be produced by all the pathogenetic mechanisms of neuropathic pain, singly or variously associated. PHN is caused by reactivation in the spinal or cranial ganglia of the varicella virus, which initiates different pathogenetic mechanisms depending on the nerve site reached: in the ganglion it involves cell body damage and deafferentation of the 2nd neuron (deafferentation PHN or type III), migrating to the skin it causes peripheral nerve damage with nerve fiber disruption (axonal neuropathy PHN or type II A) and/or demyelination of Aα, Aβ and Aδ fibers (demyelination PHN or type II B) as well as nociceptor damage (persistent nociceptor hyperexcitability PHN or type I). Finally, centripetal migration of virus towards the neuraxis results in damage to the dorsal root (Type III PHN) and central neurons (central PHN or type IV).
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spelling doaj-art-56a3f618796246ff8a9fd60dbb2fd9802024-12-11T10:47:50ZengPublieditingPathos2385-07442024-06-01311Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic painGuido Orlandini, MD0Pain Medicine Villa Ravenna (Chiavari-Ge)Post-herpetic neuralgia (PHN) is of particular interest to the algologist because it can be produced by all the pathogenetic mechanisms of neuropathic pain, singly or variously associated. PHN is caused by reactivation in the spinal or cranial ganglia of the varicella virus, which initiates different pathogenetic mechanisms depending on the nerve site reached: in the ganglion it involves cell body damage and deafferentation of the 2nd neuron (deafferentation PHN or type III), migrating to the skin it causes peripheral nerve damage with nerve fiber disruption (axonal neuropathy PHN or type II A) and/or demyelination of Aα, Aβ and Aδ fibers (demyelination PHN or type II B) as well as nociceptor damage (persistent nociceptor hyperexcitability PHN or type I). Finally, centripetal migration of virus towards the neuraxis results in damage to the dorsal root (Type III PHN) and central neurons (central PHN or type IV).https://www.pathos-journal.com/2024_1_246.htmlpostherpeticneuralgiaherpes zosterpainneuropathictherapies
spellingShingle Guido Orlandini, MD
Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic pain
Pathos
postherpetic
neuralgia
herpes zoster
pain
neuropathic
therapies
title Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic pain
title_full Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic pain
title_fullStr Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic pain
title_full_unstemmed Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic pain
title_short Post-herpetic neuralgia: diagnosis and therapy. A clinical situation that is the synthesis of all types of neuropathic pain
title_sort post herpetic neuralgia diagnosis and therapy a clinical situation that is the synthesis of all types of neuropathic pain
topic postherpetic
neuralgia
herpes zoster
pain
neuropathic
therapies
url https://www.pathos-journal.com/2024_1_246.html
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