Does the type of electrode affect the electromyoneurographic parameters in rats?

Somensi, Danusa Neves; Teixeira, Renan Kleber Costa; Feijó, Daniel Haber; Loureiro, Karine Drumond; Valente, Antônia Regiane Pereira Duarte; Carvalho, Luan Teles Ferreira de; Calvo, Faustino Chaves; Santos, Deivid Ramos dos; Barros, Rui Sergio Monteiro de

doi:10.1590/s0102-865020190030000004

Cited by 3 publications

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References 15 publications

(41 reference statements)

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“…Thirty-five rats (20 cervical and 15 thoracic) were submitted to old anesthetic protocol (OAP) 13 - 15 , with ketamine (K) 70 mg/kg plus xylazine (X) 10 mg/kg, intraperitoneal, proving to be effective during the operative period without intercurrences, as used in the experimental surgery laboratory 16 , 17 . The other 35 animals (20 cervical and 15 thoracic) were submitted to a new anesthetic protocol (NAP), with ketamine 60 mg/kg, xylazine 8 mg/kg and fentanyl 0.03 mg/kg, intraperitoneal 16 . Fentanyl was repeated for every 30 minutes until the end of the surgery.…”

Section: Methodsmentioning

confidence: 99%

A new anesthetic protocol to medullary nerve roots access in rats

et al. 2021

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Section: Methodsmentioning

confidence: 99%

A new anesthetic protocol to medullary nerve roots access in rats

et al. 2021

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“…The rat PB is considered a viable model in the area of microsurgical experimentation, especially due to its similarity to the human PB 4 – 8 with structural and functional equivalence in several systems 4 , 5 . For this reason, it serves the purpose of researchers who seek explanations in the experimental field for relevant phenomena observed in humans 9 , 10 , mainly when new techniques are to be used to develop basic and advanced research, especially when studying the nerve under magnification 11 .…”

Section: Introductionmentioning

confidence: 99%

Anatomorphometry of the brachial plexus under high-definition system: an experimental study in rats

et al. 2022

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Purpose: To study the anatomorphometry of the plexus brachialis (PB) of rats under a high-definition video system. Methods: Ten male Wistar rats discarded from other research that did not interfere in the morphology of the animal, respecting the principle of reduction, were used. All animals were submitted to the same protocol. Initially, the cervical region was shaved. The animals were placed in a dorsal position. A single elbow-to-elbow incision was performed and dissection started at the deltopectoral sulcus. The procedures were performed under a video system. To measure the structures, the Image J software was used. Results: All the PB evaluated originated from the C5-T1 spinal nerves. C5 and C6 converged to form the truncus superior, the root of C7 originated the truncus medius, and the confluence of C8 and T1 originated the truncus inferior. It was found the union of C7, C8, and T1 to form truncus inferomedialis instead of separate medial and inferior truncus. C8 (1.31 mm) was the thickest root, the truncus inferior (1.80 mm) and the nerve radialis (1.02 mm), were the thickest. Conclusions: The anatomy of the PB is comparable to humans, admitting variations. The videomagnification system is useful to perform microsurgical dissection.

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Electroneuromyography: a modern view on the possibilities of application (literature review)

Морозов

Sorokovikova

Minakova

et al. 2022

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Relevance. Currently, one of the most informative specific methods for diagnosing damage to the spinal cord and peripheral nervous system is electroneuromyography. This complex electrophysiological method is based on the registration, analysis and evaluation of the obtained potentials that arise during the work of the studied skeletal muscles of the patient during the passage of impulses along the peripheral nerve fibers. A feature of this method is the variety of parameters obtained: from the characteristics of the evoked potential itself – its latent period, shape, amplitude and duration, to obtaining the number of functioning motor units of the muscle fiber, the speed of the impulse of both motor and sensory innervation.The purpose of study. To analyze the current understanding of the possibilities of using the electroneuromyography method in clinical practice.Materials and methods. In the course of this study, an analysis was made of foreign and domestic literature of recent years on the possibility of using the method of electroneuromyography in adult and pediatric neurological practice.Results. The rapid development of electroneuromyography in recent years makes it possible to use two main areas: stimulation electroneuromyography (ENMG) and needle, which is currently mainly used abroad. ENMG is a method that does not require invasive intervention, which allows you to assess the state of the studied nerve in different areas, giving an understanding of the nature of the nerve lesion, as well as the degree of its damage. At the moment, there are clear indications for the use of this particular method in clinical practice, namely for polyneuropathies of any genesis, plexopathies, neuropathies and neuritis of any genesis, neural amyotrophies, tunnel syndromes, myasthenia gravis and osteochondrosis of the spine with radicular syndrome. In turn, needle electroneuromyography is an invasive method, but more accurate and highly informative, allowing to assess the functional state of the peripheral neuromotor apparatus. At the same time, this method allows you to identify the disease at an early stage of development, the localization of the pathology, the nature and degree of activity, as well as to indicate the degree of damage to the muscle fiber and the possibility of its further recovery. It is recommended to use this method as a specific diagnosis of amyotrophic lateral sclerosis, spinal amyotrophy, myotonia, myopathy of various origins, hereditary muscle diseases, paraneoplastic myopathies, and so on.Conclusion. The possibilities of using electroneuromyography currently continue to expand due to the popularity of the method as a diagnostic of the state of the neuromuscular system due to the specificity of indicators, the possibility of diagnosing many diseases at the subclinical stage, the ease of monitoring parameters in dynamics, the possibility of non-invasive use and an accurate assessment of the effectiveness of therapy.

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Does the type of electrode affect the electromyoneurographic parameters in rats?

Cited by 3 publications

References 15 publications

A new anesthetic protocol to medullary nerve roots access in rats

A new anesthetic protocol to medullary nerve roots access in rats

Anatomorphometry of the brachial plexus under high-definition system: an experimental study in rats

Electroneuromyography: a modern view on the possibilities of application (literature review)

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