Whole plantar nerve conduction study with disposable strip electrodes

Hemmi, Shoji; Kurokawa, Katsumi; Nagai, Toshiaki; Okamoto, Toshio; Murakami, Tatsufumi; Sunada, Yoshihide

doi:10.1002/mus.24715

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…Some authors suggest that the study of fibers even more distal than the sural, such as the fibers of the plantar nerve, could be an early detector of diabetic neuropathy [ 129 , 130 , 131 , 132 ]. Others highlight how the joint study of peripheral nerves together, medial plantar and peroneal, in addition to dorsal sural NCS, could increase sensitivity in the detection of neuropathy, thus allowing earlier diagnosis, especially when routine NCS are normal [ 129 , 133 ].…”

Section: Diagnosismentioning

confidence: 99%

Peripheral Neuropathy in Diabetes Mellitus: Pathogenetic Mechanisms and Diagnostic Options

Galiero

Caturano

Vetrano

et al. 2023

IJMS

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Diabetic neuropathy (DN) is one of the main microvascular complications of both type 1 and type 2 diabetes mellitus. Sometimes, this could already be present at the time of diagnosis for type 2 diabetes mellitus (T2DM), while it appears in subjects with type 1 diabetes mellitus (T1DM) almost 10 years after the onset of the disease. The impairment can involve both somatic fibers of the peripheral nervous system, with sensory-motor manifestations, as well as the autonomic system, with neurovegetative multiorgan manifestations through an impairment of sympathetic/parasympathetic conduction. It seems that, both indirectly and directly, the hyperglycemic state and oxygen delivery reduction through the vasa nervorum can determine inflammatory damage, which in turn is responsible for the alteration of the activity of the nerves. The symptoms and signs are therefore various, although symmetrical painful somatic neuropathy at the level of the lower limbs seems the most frequent manifestation. The pathophysiological aspects underlying the onset and progression of DN are not entirely clear. The purpose of this review is to shed light on the most recent discoveries in the pathophysiological and diagnostic fields concerning this complex and frequent complication of diabetes mellitus.

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Section: Diagnosismentioning

confidence: 99%

Peripheral Neuropathy in Diabetes Mellitus: Pathogenetic Mechanisms and Diagnostic Options

Galiero

Caturano

Vetrano

et al. 2023

IJMS

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“…Our recent study has shown the clinical utility of orthodromic nerve conduction by using SSEs for evaluation of the whole plantar nerve (Hemmi et al, 2016). Since whole-nerve action potentials arising from a large number of terminal branches could be elicited at the same time by placement of SSEs, the highest amplitude was constantly obtained by our method, even in elderly people.…”

Section: Discussionmentioning

confidence: 94%

A new technique for dorsal sural nerve conduction study with surface strip electrodes

Hemmi

Kurokawa

Nagai

et al. 2017

Clinical Neurophysiology

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Section: Discussionmentioning

confidence: 99%

“…Since the feet are most commonly affected in length-dependent neuropathy, NCS of the more distal plantar nerves is more sensitive as an indicator of neuropathy than are sural studies ( 16 - 19 ). However, the small amplitude evoked response and difficult NCS procedure have limited the routine use of medial or lateral plantar NCS ( 19 ). Since we aimed to make the DPN index simple and easy to use and since both low amplitude SNAPs and slow SCVs in the sural nerve are major findings in DPN ( 20 ), we used the sural nerve instead of the medial or lateral plantar nerve for the analysis.…”

Section: Discussionmentioning

confidence: 99%

Relationship between the Diabetic Polyneuropathy Index and the Neurological Findings of Diabetic Polyneuropathy

et al. 2020

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Objective To achieve an accurate quantification in diabetic polyneuropathy (DPN), we developed a new electrophysiological index that we called the DPN index. The relationship between the DPN index and the neurological findings in diabetic patients was assessed. Methods The DPN index was calculated by the mean value of percentages of four parameters (tibial compound muscle action potential amplitude / F wave minimum latency, sural sensory nerve action potential amplitude / sensory nerve conduction velocity) against the mean normal values. Twenty healthy subjects were recruited as a control group. Patients A total of 348 diabetic patients who were hospitalized in our hospital during the period from December 2016 to August 2019 were retrospectively studied. The correlations between the DPN index and five neurological findings (subjective sensory symptoms, diminished or absent Achilles tendon reflex, impaired tactile and vibration sense, low coefficient of variation of R-R interval) were evaluated. Results The DPN index in healthy subjects was 129.3±32.7%. The DPN index in diabetic patients with one or more neurological findings was significantly lower than that in diabetic patients without any neurological findings (p<0.01: 89.3±27.8% vs. 118.4±21.2%). For each of the five neurological findings, the DPN index in the group with an abnormality was significantly lower than that in the group without any abnormality (each p<0.01). Spearman's correlation coefficients indicated that a greater number of neurological findings resulted in a lower DPN index (r=-0.711, p<0.01). Conclusion Our study suggested that the DPN index is useful for evaluating the severity of DPN.

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Whole plantar nerve conduction study with disposable strip electrodes

Abstract: The higher mean amplitude of whole plantar CNAPs obtained by our method suggests that it enables CNAPs to be obtained easily, even in elderly people.

Cited by 5 publications

References 14 publications

Peripheral Neuropathy in Diabetes Mellitus: Pathogenetic Mechanisms and Diagnostic Options

Peripheral Neuropathy in Diabetes Mellitus: Pathogenetic Mechanisms and Diagnostic Options

A new technique for dorsal sural nerve conduction study with surface strip electrodes

Relationship between the Diabetic Polyneuropathy Index and the Neurological Findings of Diabetic Polyneuropathy

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