Comparing the Ipswich Touch Test (IpTT) and 10gm-SMWF (10-gm Semmes–Weinstein mono-filament) in Indian population subset with type 2 diabetes mellitus to detect diabetes neuropathy,Irish Journal of Medical Science

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Comparing the Ipswich Touch Test (IpTT) and 10gm-SMWF (10-gm Semmes–Weinstein mono-filament) in Indian population subset with type 2 diabetes mellitus to detect diabetes neuropathy
Irish Journal of Medical Science ( IF 1.7 ) Pub Date : 2023-05-04 , DOI: 10.1007/s11845-023-03376-9
Sivasubramaniyam Senthilkumar ₁ , Ramesh Dasarathan ₂ , Pushkar Pazhani ₃ , Archana Gaur ₄ , Varatharajan Sakthivadivel ₅

Affiliation

Background

Diabetic neuropathy diagnosis involves invasive procedures like nerve biopsy and nerve conduction studies which are seldom available at rural health centers. The Ipswich Touch Test (IpTT) is one test that can be performed by the caregiver and it’s simple to perform.

Aim

This study was aimed to compare the validity of the IpTT and 10gm-SMWF (10-gm Semmes–Weinstein mono-filament) test with the vibration perception threshold (VPT) using biothesiometer.

Methods

Two hundred patients with type 2 diabetes, between the age of 30 and 50 years, were included in the study. The neuropathy assessment was performed by biothesiometer, 10gm-SMWF test, and IpTT. Taking VPT(> 25 V) as the gold standard; the sensitivity and specificity of IpTT and 10gm-SMWF are calculated and compared to each other.

Results

On comparing with the VPT, the 10gm-SMWF test had a sensitivity of 94.7% and specificity of 85.7%, and the IpTT had a sensitivity of 91.9% and specificity of 85.7%. 10gm-SMWF test (Kappa value 0.733) had better agreement with VPT than IpTT (Kappa value 0.675). On Spearman’s correlation, the 10gm-SMWF test and the IpTT had r values of 0.738 and 0.686 respectively (P = 0.000).

Conclusion

10gm-SMWFis a better test to diagnose neuropathy than the IpTT; but in the absence of 10gm-SMWFs, the IpTT is an ideal alternative. IpTT can be performed in a bedside or chairside setting in the absence of a professional health care provider who can screen patients for neuropathy and alert the physician of an impending complication where amputation can be avoided.

中文翻译：

在患有 2 型糖尿病的印度人群亚群中比较伊普斯维奇触摸测试 (IpTT) 和 10gm-SMWF（10-gm Semmes-Weinstein 单丝）以检测糖尿病神经病变

背景

糖尿病神经病变的诊断涉及神经活检和神经传导研究等侵入性操作，而农村卫生中心很少提供这些操作。伊普斯维奇触摸测试 (IpTT) 是一项可由护理人员执行的测试，并且执行起来很简单。

目的

本研究旨在比较 IpTT 和 10gm-SMWF（10-gm Semmes-Weinstein 单丝）测试与使用生物感觉计的振动感知阈值 (VPT) 的有效性。

方法

该研究纳入了 200 名年龄在 30 岁至 50 岁之间的 2 型糖尿病患者。通过生物电阻计、10gm-SMWF 测试和 IpTT 进行神经病变评估。以VPT(>25V)为金标准；计算并比较 IpTT 和 10gm-SMWF 的敏感性和特异性。

结果

与VPT相比，10gm-SMWF试验的敏感性为94.7%，特异性为85.7%，IpTT的敏感性为91.9%，特异性为85.7%。 10gm-SMWF 测试（Kappa 值 0.733）与 VPT 的一致性优于 IpTT（Kappa 值 0.675）。根据 Spearman 相关性，10gm-SMWF 检验和 IpTT 的r值分别为 0.738 和 0.686（ P = 0.000）。