Evidence map›Paper›PMID 24975286›Full record

ArticleDiabetic medicine : a journal of the British Diabetic Association2014

The diagnostic accuracy of Neuropad for assessing large and small fibre diabetic neuropathy.

G Ponirakis, I N Petropoulos, H Fadavi, U Alam, O Asghar, A Marshall, M Tavakoli, R A Malik

Open access · greenAbstract read
In one paragraph

Article in Diabetic medicine : a journal of the British Diabetic Association, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.9field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 49 citations in OpenAlex.

  1. The impact of obstructive sleep apnea treatment on microvascular complications in patients with type 2 diabetes: a feasibility randomized controlled trial.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
    Trial
  2. Trial
  3. Review
  4. Review
  5. Article
  6. Review
  7. Neuropad Assessment of Sudomotor Function Across Glycemic Levels in Adults.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Lower Limb Arterial Ischemia: An Independent Risk Factor of Sudomotor Dysfunction in Type 2 Diabetes.Diabetes, metabolic syndrome and obesity : targets and therapy · 2023
    Article
  13. Article
  14. Small Fiber Neuropathy in Diabetes Polyneuropathy: Is It Time to Change?Journal of diabetes science and technology · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Current View of Diagnosing Small Fiber Neuropathy.Journal of neuromuscular diseases · 2021
    Review
  19. Review
  20. Challenges of neuropathic pain: focus on diabetic neuropathy.Journal of neural transmission (Vienna, Austria : 1996) · 2020
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

G PonirakisInstitute of Human Development, Centre for Endocrinology and Diabetes, Faculty of Medical and Human Sciences, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK.
I N Petropoulos
H Fadavi
U Alam
O Asghar
A Marshall
M Tavakoli
R A Malik
NIHR Wellcome Trust Southampton Clinical Research Facility · GBUniversity of Manchester · GBManchester Royal Infirmary · GB

Funding

Corneal Confocal Microscopy: a non-invasive surrogate for diabetic neuropathyR01DK077903 · NIDDK · UNIVERSITY OF MANCHESTER · PI BOULTON, ANDREW JM, MALIK, RAYAZ AHMED · 2008 to 2012
$1.5M
NON-INVASIVE SURROGATE MARKERS FOR DIABETIC NEUROPATHYR01NS046259 · NINDS · UNIVERSITY OF MANCHESTER · PI BOULTON, ANDREW JM · 2002 to 2004
$771k
NIDDK NIH HHS R01 DK077903NINDS NIH HHS 5R01 NS46259-03NINDS NIH HHS R01 NS046259Wellcome Trust
6 · The paper itself

Abstract

aimsNeuropad is a simple visual indicator test, with moderate diagnostic performance for diabetic peripheral neuropathy. As it assesses sweating, which is a measure of cholinergic small nerve fibre function, we compared its diagnostic performance against established measures of both large and, more specifically, small fibre damage in patients with diabetes.

methodsOne hundred and twenty-seven participants (89 without diabetic peripheral neuropathy and 38 with) aged 57 ± 9.7 years underwent assessment with Neuropad, large nerve fibre assessments: Neuropathy Disability Score, vibration perception threshold, peroneal motor nerve conduction velocity; small nerve fibre assessments: neuropathy symptoms (Diabetic Neuropathy Symptoms score) corneal nerve fibre length and warm perception threshold.

resultsNeuropad has a high sensitivity but moderate specificity against large fibre neuropathy assessments: Neuropathy Disability Score (> 2) 70% and 50%, vibration perception threshold (> 14 V) 83% and 53%, and peroneal motor nerve conduction velocity (< 42 m/s) 81% and 54%, respectively. However, the diagnostic accuracy of Neuropad was significantly improved against corneal nerve fibre length (< 14 mm/mm2) with a sensitivity and specificity of 83% and 80%, respectively. Furthermore, the area under the curve for corneal nerve fibre length (85%) was significantly greater than with the Neuropathy Disability Score (66%, P = 0.01) and peroneal motor nerve conduction velocity (70%, P = 0.03). For neuropathic symptoms, sensitivity was 78% and specificity was 60%.

conclusionsThe data show the improved diagnostic performance of Neuropad against corneal nerve fibre length. This study underlines the importance of Neuropad as a practical diagnostic test for small fibre neuropathy in patients with diabetes.

Indexed as

AdultAgedCase-Control StudiesDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2Diabetic NeuropathiesFemaleHumansMaleMiddle AgedNeural ConductionPerceptionPeroneal NerveSensitivity and SpecificitySweat GlandsSweating

Identifiers

PMID24975286
PMCPMC4236278
OpenAlexW2003904852

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.