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Corneal Confocal Microscopy: A Novel Non-invasive Technique to Quantify Small Fibre Pathology in Peripheral Neuropathies
Published on: January 3, 2011
The Neuropad test: a visual indicator test for human diabetic neuropathy.
C Quattrini1, M Jeziorska, M Tavakoli
1Division of Cardiovascular Medicine, Core Technology Facility, University of Manchester, 46 Grafton Street, Manchester M13 9NT, UK.
Diabetologia
|March 28, 2008
Summary
The Neuropad test effectively screens for diabetic neuropathy by correlating with established measures. It shows promise as a simple, accessible tool for identifying patients with nerve damage in the feet.
Area of Science:
- Neurology
- Diabetology
- Clinical Assessment
Background:
- Diabetic neuropathy affects a significant portion of diabetic patients, leading to sensory and autonomic dysfunction.
- Early detection of diabetic neuropathy is crucial for timely intervention and prevention of complications.
- Current diagnostic methods can be invasive or require specialized equipment.
Purpose of the Study:
- To evaluate the Neuropad test, a visual indicator for skin sympathetic cholinergic innervation, as a screening tool for diabetic neuropathy.
- To compare Neuropad results with established measures of somatic and autonomic neuropathy in diabetic patients.
- To assess the diagnostic accuracy of the Neuropad test for detecting clinical diabetic neuropathy.
Main Methods:
- Fifty-seven diabetic patients participated in the study.
- Neuropad assessment was performed on the feet.
- Quantitative sensory and autonomic function tests were conducted.
- Intra-epidermal nerve fibre density was assessed via skin biopsies.
Main Results:
- Neuropad responses showed significant correlations with neuropathy disability score, neuropathic symptom score, cold detection threshold, heat-as-pain perception, and heart rate variability.
- Intra-epidermal nerve fibre density was significantly reduced in patients with abnormal Neuropad responses.
- The Neuropad test demonstrated 85% sensitivity and 45% specificity for detecting clinical neuropathy.
Conclusions:
- The Neuropad test is a simple visual indicator that correlates well with established measures of diabetic neuropathy.
- It shows potential as an accessible screening tool for diabetic neuropathy in clinical practice.
- Further validation may support its routine use in diabetic patient care.
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