Anomalous innervations: variations and typical electromyography pattern

Гришина, Д. А.; Супонева, Н. А.; Павлов, Э. В.; Савицкая, Н. Г.

doi:10.17650/2222-8721-2016-6-2-10-19

Cited by 4 publications

(7 citation statements)

References 20 publications

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“…M-response is absent or of a very low amplitude with primary positive deflection during the investigation of median nerve. Similar situation is observed with adductor pollicis muscle during stimulation of the ulnar nerve (10,1).…”

Section: Types Of the Interneural Anastomoses At The Forearm Levelsupporting

confidence: 75%

“…In anatomical studies, where more than 200 forearms were preparated, prevalence of MGA consisted 15 % in average (3)(4)(5). Same results were obtained by neurophysiologists: according to the data from 2 big neurophysiological studies, were 656 and 1 200 forearms were studied, prevalence of MGA consisted 15 and 10 % correspondingly (1,6,7).…”

Section: Types Of the Interneural Anastomoses At The Forearm Levelmentioning

confidence: 66%

“…Prevalence of ADFN in the study of Rayegani S. M., Daneshtalab E., Bahrami M. H. (2011) was 12.2 % (17.9 % for bilateral and 82.1 % unilateral) (1).…”

Section: Types Of Interneural Anastomoses Of Lower Limbsmentioning

confidence: 89%

“…This is conditioned by the greater amount of axons of the median nerve at the level of cubital fossa (before the separation of communicative branch), than at the level of the wrist (after the separation of communicative branch), while situation is opposite during the investigation of ulnar nerve. "False" conductive block, obtained from the 2 nd stimulation point of ulnar nerve (3 cm below the medial epicondyle of the humerus), investigated from the abductor digiti minimi muscle in the absence of clinical sign if ulnar nerve injury (is an ENMG finding) requires exclusion of mistakes and MGA (1).…”

Section: Types Of the Interneural Anastomoses At The Forearm Levelmentioning

confidence: 99%

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Innervation Anomalies and Interneural Anastomoses: Is There Clinical Relevance or Not?

Dmytrіiev

Dmytriiev

Lysak³

2020

PMJUA

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Failed block could be one of the adverse results of the conductive anaesthesia. There are situations, when in seemingly perfect technique of the block, properly chosen drug, dosage, adjuvant – the block is not achieved (it does not occur or is incomplete or so-called “mosaic block” occurs). It is necessary to remember about atypical or abnormal nerves branching, possible interneural anastomoses, when looking for the possible cause of it. Information about most common types of interneural anastomosis of arm’s and leg’s long nerves is presented in this article. Knowledge of possible abnormal neural innervation can provide an understanding of inefficacy of some simple blocks, decrease amount of mistakes in data interpretation, that was obtained during electroneuromyographic (ENMG) investigations, improve understanding of clinical pattern in the peripheral nerve injuries, that form anastomosis.

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Section: Types Of the Interneural Anastomoses At The Forearm Levelsupporting

confidence: 75%

Section: Types Of the Interneural Anastomoses At The Forearm Levelmentioning

confidence: 66%

“…Prevalence of ADFN in the study of Rayegani S. M., Daneshtalab E., Bahrami M. H. (2011) was 12.2 % (17.9 % for bilateral and 82.1 % unilateral) (1).…”

Section: Types Of Interneural Anastomoses Of Lower Limbsmentioning

confidence: 89%

Section: Types Of the Interneural Anastomoses At The Forearm Levelmentioning

confidence: 99%

See 2 more Smart Citations

Innervation Anomalies and Interneural Anastomoses: Is There Clinical Relevance or Not?

Dmytrіiev

Dmytriiev

Lysak³

2020

PMJUA

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“…Нервно-мышечные Б О Л Е З Н И Neuromuscular DISEASES 1'2019 ТОМ VOL. 9 стимуляции локтевого нерва [37]. Заподозрить такой вариант иннервации можно при стимуляции срединного нерва на уровне локтевого сгиба с регистрацией ответа с мышц кисти, иннервируемых локтевым нервом.…”

Section: лекции и обзорыunclassified

Conduction block as an electrophysiological phenomenon: a review of the literature

Никитин

Муртазина

Дружинин

2019

Neuromuscular Diseases

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Evaluation and interpretation of electrophysiological phenomena often plays an important role in the diagnosis of neuromuscular diseases. Motor nerve conduction block is a reduction of either amplitude or area of the compound motor action potential elicited by proximal to distal motor nerve stimulation. Today, the value of conduction block in the diagnosis of demyelinating and axonal neuropathies, as well as the diagnostic criteria for these disorders, are still under discussion.Objective of the review of the literature is to highlight the value of conduction block as an electrophysiological phenomenon in the light of clinical manifestations. There is no consensus in the literature which motor response parameters should be used as partial conduction block criteria. The diversity of pathogenic forms in which conduction block can be registered does not allow to consider the phenomenon as a sign of only demyelinating lesions, and the term conduction block should be considered as a pure electrophysiological phenomenon. Different pathophysiological mechanisms of conduction block formation should be studied separately within each nosology. Conduction block detection does not allow to specify a particular diagnosis, however, in conjunction with clinical and anamnestic data, it may be the main argument in the diagnosis of a number of peripheral nerves diseases.

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Perioperative neuropathic and positional problems: literature review

Svirskii,

Paromov,

Sokolova

et al. 2024

Regional Anesthesia and Acute Pain Management

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At present, an increasing number of specialists prefer the fast-track surgery concept. One of the significant perioperative complications that can affect the rate and quality of postoperative rehabilitation is the development of neuropathy, which can be the result of improper patient positioning on the operating table, and direct intraoperative damage to the nerve / trunk / plexus. Physical (mechanical compression, stretching, and partial / complete intersection of the nerve with a needle, scalpel, or electrode) and chemical (toxicity of local anesthetics and chemically active liquid effects) mechanisms for neuropathy formation can be described. To prevent the development of a neurological deficit, both the anesthesiologist and surgeon must take all the necessary measures to prevent neuropathies and begin appropriate treatment as soon as possible in the case of its occurrence. This article discusses the anatomy, physiology, and pathophysiology of the peripheral nerve, mechanisms of compression-ischemic neuropathy formation, and perioperative positional problems. Existing recommendations for the treatment of peripheral neuropathic were assessed and proposed for use not only with conservative therapy methods but also with interventional methods for the treatment of established perioperative neurological complications. A summary table of the possible clinical manifestations of postoperative neuropathic is presented.

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Anomalous innervations: variations and typical electromyography pattern

Cited by 4 publications

References 20 publications

Innervation Anomalies and Interneural Anastomoses: Is There Clinical Relevance or Not?

Innervation Anomalies and Interneural Anastomoses: Is There Clinical Relevance or Not?

Conduction block as an electrophysiological phenomenon: a review of the literature

Perioperative neuropathic and positional problems: literature review

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