Reliability of Superficial Peroneal, Sural, and Medial Plantar Nerve Conduction Studies

Herrera, Esperanza; Camargo, Diana M.; Delgado, Diana C.; Salvini, Tania F.

doi:10.1097/wnp.0b013e3181baaaea

Cited by 7 publications

(7 citation statements)

References 29 publications

(61 reference statements)

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“…Our results are comparable to reproducibility studies on younger, less diverse study populations, which found ICCs for peroneal motor NCV between 0.52 and 0.89 (Bird, Brown, 2006, Dyck, Norell, 2007, Herrera, Camargo, 2009). Our sample had overall ICCs for NCV ranging from 0.75–0.90.…”

Section: Discussionsupporting

confidence: 88%

“…Test-retest reliability, otherwise known as reproducibility, is a necessary component of accuracy. Moderate to high reproducibility has been found for peroneal motor NC in healthy (Herrera et al, 2009, Loseth et al, 2007) and diabetic populations (Bird et al, 2006, Dyck et al, 2003, Dyck et al, 2007); however, these studies included few older adults and lacked racial diversity.…”

Section: Introductionmentioning

confidence: 99%

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Reproducibility of peroneal motor nerve conduction measurement in older adults

Ward

Boudreau

Vinik

et al. 2013

Clinical Neurophysiology

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Objective While neuropathy is common in the elderly, nerve conduction (NC) reproducibility in older adults is not well-established. We sought to evaluate intraobserver reproducibility of peroneal motor NC measures in a diverse sample of older adults. Methods We measured peroneal motor NC amplitude and velocity in a subset of participants (mean age=82.9 ± 2.7, n=62, 50% female, 51.6% black, 35.5% DM) in the Health, Aging, and Body Composition Study. Using coefficients of variation (CVs), intraclass correlation coefficients (ICCs), and Bland Altman Plots, we compared two sets of measurements taken by the same examiner hours apart on the same day. Results Low CVs (2.15–4.24%) and moderate to high ICCs (0.75–0.99) were observed. No systematic variation was found across measures. Despite small numbers in some subgroups, we found no differences in reproducibility by diabetes, race, or study site. Conclusion NC measures have moderate to high intraobsever reproducibility in older adults and are not affected by diabetes, race, or gender. Significance These data provide evidence to support use of these measures in aging research.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Reproducibility of peroneal motor nerve conduction measurement in older adults

Ward

Boudreau

Vinik

et al. 2013

Clinical Neurophysiology

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“…The level of reproducibility of the point-of-care device appeared to be comparable to reproducibility measures from standard NCS. [30] However, while quantitative accuracy was excellent for SNAP, we observe a systematic overestimation of SNCV by the point-of-care device. From this measurement bias, we determined that adjustment of threshold values is required – either automatically within the programming of the device or in the published normative values for the device - to adequately reflect those of standard NCS.…”

Section: Discussionmentioning

confidence: 69%

Reliability and Validity of a Point-of-Care Sural Nerve Conduction Device for Identification of Diabetic Neuropathy

et al. 2014

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BackgroundConfirmation of diabetic sensorimotor polyneuropathy (DSP) relies on standard nerve conduction studies (NCS) performed in specialized clinics. We explored the utility of a point-of-care device (POCD) for DSP detection by nontechnical personnel and a validation of diagnostic thresholds with those observed in a normative database.Research Design and Methods44 subjects with type 1 and type 2 diabetes underwent standard NCS (reference method). Two nontechnical examiners measured sural nerve amplitude potential (SNAP) and conduction velocity (SNCV) using the POCD. Reliability was determined by intraclass correlation coefficients (ICC [2], [1]). Validity was determined by Bland-Altman analysis and receiver operating characteristic curves.ResultsThe 44 subjects (50% female) with mean age 56±18 years had mean SNAP and SNCV of 8.0±8.6 µV and 41.5±8.2 m/s using standard NCS and 8.0±8.2 µV and 49.9±11.1 m/s using the POCD. Intrarater reproducibility ICC values were 0.97 for SNAP and 0.94 for SNCV while interrater reproducibility values were 0.83 and 0.79, respectively. Mean bias of the POCD was −0.1±3.6 µV for SNAP and +8.4±6.4 m/s for SNCV. A SNAP of ≤6 µV had 88% sensitivity and 94% specificity for identifying age-and height-standardized reference NCS values, while a SNCV of ≤48 m/s had 94% specificity and 82% sensitivity. Abnormality in one or more of these thresholds was associated with 95% sensitivity and 71% specificity for identification of DSP according to electrophysiological criteria.ConclusionsThe POCD demonstrated excellent reliability and acceptable accuracy. Threshold values for DSP identification validated those of published POCD normative values. We emphasize the presence of measurement bias – particularly for SNCV – that requires adjustment of threshold values to reflect those of standard NCS.

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“…The good reliability of these recording techniques repeatedly administered by the same examiner has been previously established 25,29 . Surface electrodes were used to stimulate and record nerve responses.…”

Section: A B Cmentioning

confidence: 99%

Effect of walking and resting after three cryotherapy modalities on the recovery of sensory and motor nerve conduction velocity in healthy subjects

Herrera¹,

Sandoval²,

Camargo³

et al. 2011

Rev. bras. fisioter.

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© Revista Brasileira de FisioterapiaEffect of walking and resting after three cryotherapy modalities on the recovery of sensory and motor nerve conduction velocity in healthy subjects Efeito da marcha e do repouso após aplicação de três protocolos de crioterapia na recuperação da velocidade de condução sensorial e motora em sujeitos saudáveis Esperanza Herrera 1 , Maria Cristina Sandoval 1 , Diana M. Camargo 1 , Tania F. Salvini 2 AbstractBackground: Different cryotherapy modalities have distinct effects on sensory and motor nerve conduction parameters. However, it is unclear how these parameters change during the post-cooling period and how the exercise carried out in this period would influence the recovery of nerve conduction velocity (NCV). Objectives: To compare the effects of three cryotherapy modalities on post-cooling NCV and to analyze the effect of walking on the recovery of sensory and motor NCV. Methods: Thirty six healthy young subjects were randomly allocated into three groups: ice massage (n=12), ice pack (n=12) and cold water immersion (n=12). The modalities were applied to the right leg. The subjects of each modality group were again randomized to perform a post-cooling activity: a) 30min rest, b) walking 15 min followed by 15 min rest. The NCV of sural (sensory) and posterior tibial (motor) nerves was evaluated. Initial (pre-cooling) and final (30 min post-cooling) NCV were compared using a paired t-test. The effects of the modalities and the post-cooling activities on NCV were evaluated by an analysis of covariance. The significance level was α=0.05. Results: There was a significant difference between immersion and ice massage on final sensory NCV (p=0.009). Ice pack and ice massage showed similar effects (p>0.05). Walking accelerated the recovery of sensory and motor NCV, regardless of the modality previously applied (p<0.0001). Conclusions: Cold water immersion was the most effective modality for maintaining reduced sensory nerve conduction after cooling. Walking after cooling, with any of the three modalities, enhances the recovery of sensory and motor NCV.Keywords: cryotherapy; cold therapy; nerve conduction; cooling agents; sural nerve; tibial nerve. ResumoContextualização: Diferentes protocolos de crioterapia têm ação distinta nos parâmetros de condução neural sensorial e motora. No entanto, não se sabe como é o comportamento desses parâmetros no período pós-resfriamento e como o exercício físico realizado nesse período atuaria na recuperação da velocidade de condução nervosa (VCN). Objetivos: Comparar o efeito de três protocolos de crioterapia na VCN pós-resfriamento e analisar o efeito da marcha pós-resfriamento na recuperação da VCN sensorial e motora.Métodos: Trinta e seis sujeitos jovens e saudáveis foram alocados aleatoriamente em três grupos: criomassagem (n=12), pacote de gelo (n=12); imersão em água gelada (n=12). As modalidades foram aplicadas na perna direita. Os sujeitos de cada grupo foram novamente aleatorizados para realizar uma atividade pós-resfriamento: a) 30 min de rep...

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Reliability of Superficial Peroneal, Sural, and Medial Plantar Nerve Conduction Studies

Cited by 7 publications

References 29 publications

Reproducibility of peroneal motor nerve conduction measurement in older adults

Reproducibility of peroneal motor nerve conduction measurement in older adults

Reliability and Validity of a Point-of-Care Sural Nerve Conduction Device for Identification of Diabetic Neuropathy

Effect of walking and resting after three cryotherapy modalities on the recovery of sensory and motor nerve conduction velocity in healthy subjects

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