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Goddard K, Vas P, Purves A, et al. Comparing the Diagnostic Accuracy of Simple Tests to Screen for Diabetic Peripheral Neuropathy: Protocol for a Cross-Sectional Study. JMIR Res Protoc. 2018;7(4):e72doi: 10.2196/resprot.7438.
Goddard, K., Vas, P., Purves, A., McMillan, V., Langford, T., Reid, F., & Edmonds, M. (2018). Comparing the Diagnostic Accuracy of Simple Tests to Screen for Diabetic Peripheral Neuropathy: Protocol for a Cross-Sectional Study. JMIR research protocols, 7(4), e72. https://doi.org/10.2196/resprot.7438
Goddard, Kate, et al. "Comparing the Diagnostic Accuracy of Simple Tests to Screen for Diabetic Peripheral Neuropathy: Protocol for a Cross-Sectional Study." JMIR research protocols vol. 7,4 (2018): e72. doi: https://doi.org/10.2196/resprot.7438
Goddard K, Vas P, Purves A, McMillan V, Langford T, Reid F, Edmonds M. Comparing the Diagnostic Accuracy of Simple Tests to Screen for Diabetic Peripheral Neuropathy: Protocol for a Cross-Sectional Study. JMIR Res Protoc. 2018 Apr 06;7(4):e72. doi: 10.2196/resprot.7438. PMID: 29625948; PMCID: PMC5910530.
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JMIR Res Protoc. 2018 Apr 06;7(4):e72. doi: 10.2196/resprot.7438.

Comparing the Diagnostic Accuracy of Simple Tests to Screen for Diabetic Peripheral Neuropathy: Protocol for a Cross-Sectional Study.

JMIR research protocols

Kate Goddard, Prashanth Vas, Alistair Purves, Viktoria McMillan, Thomas Langford, Fiona Reid, Michael Edmonds

Affiliations

  1. King's Technology Evaluation Centre, King's College London, London, United Kingdom.
  2. King's College London Hospital NHS Trust, London, United Kingdom.

PMID: 29625948 PMCID: PMC5910530 DOI: 10.2196/resprot.7438

Abstract

BACKGROUND: Various tests are used to detect diabetic peripheral neuropathy by assessing sense perception in the feet. Tests vary in terms of time and resources required. Simple tests are those that can be conducted quickly and easily in primary care without laboratory equipment. There are some limitations to these simple tests, an example being the variable amplitude of the 128 Hz tuning fork. A new test, VibraTip (McCallan Medical, UK), might be a valuable alternative as it emits a consistent amplitude and may offer improved diagnostic accuracy.

OBJECTIVE: The aims of this study are to estimate the diagnostic accuracy of the VibraTip device for diabetic peripheral neuropathy against the reference standard of sural nerve conduction velocity measurement, and to assess whether the VibraTip offers superior diagnostic accuracy to other routine tests based on vibration or touch.

METHODS: The study will prospectively recruit adults with type 2 diabetes who are due to attend a routine follow-up clinic. A cross-sectional study design will be employed to assess the diagnostic accuracy of 5 standard index tests for peripheral neuropathy, including VibraTip. The reference test will be sural nerve conduction velocity measurement.

RESULTS: Funding is being sought to conduct this research. The outcomes assessed will be the diagnostic accuracy of the 5 index tests against sural nerve conduction velocity measurement, including sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, and negative likelihood ratio. Receiver operating characteristic curves will be constructed and compared for each test.

CONCLUSIONS: This study will be the first within-study comparison of 5 simple tests for screening diabetic peripheral neuropathy and will address uncertainties in the potential benefits of using VibraTip in comparison with the other tests.

©Kate Goddard, Prashanth Vas, Alistair Purves, Viktoria McMillan, Thomas Langford, Fiona Reid, Michael Edmonds. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 06.04.2018.

Keywords: diabetes mellitus; diabetic foot; diabetic neuropathies; peripheral nervous system diseases; predictive value of tests; sensitivity and specificity; sensory thresholds

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