ArticlePulse (Basel, Switzerland)
Association between Brachial-Ankle Pulse Wave Velocity and Large-Nerve Fiber Function in Chinese Adults Aged 18-65 Years with Type 2 Diabetes.
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Abstract
Introduction: Arterial stiffness, measured by brachial-ankle pulse wave velocity (baPWV), has been linked to diabetic peripheral neuropathy (DPN). However, the evidence regarding its association with large-nerve fiber dysfunction, specifically assessed by vibration perception threshold (VPT), in Chinese patients aged 18-65 years with type 2 diabetes mellitus (T2DM) is scarce. This study aimed to investigate the relationship between baPWV and VPT in this specific population. Methods: This cross-sectional study enrolled 600 inpatients with T2DM aged 18-65 years. baPWV was measured using an automated waveform analyzer. DPN was defined as a VPT ≥15 volts in at least one foot. Multivariable logistic regression models were used to assess independent association, expressed as odds ratios (ORs) and 95% confidence intervals (CIs). Restricted cubic spline and subgroup analyses were performed to evaluate the dose-response relationship and consistency of the association. Results: Among the participants, 165 (27.5%) were classified into the abnormal VPT group. After full adjustment for confounders including age, gender, diabetes duration, glycated hemoglobin, and lifestyle factors, each 100 cm/s increase in baPWV was significantly associated with increased odds of DPN (OR = 1.07, 95% CI: 1.01-1.14). When analyzed by quartiles, participants in the highest baPWV quartile (≥1,660 cm/s) had 1.29-fold higher odds of abnormal VPT (OR = 1.29, 95% CI: 1.03-3.01) compared to those in the lowest quartile (<1,380 cm/s), with a significant trend across quartiles ( Conclusion: Elevated baPWV is independently associated with higher odds of DPN measured by VPT in Chinese patients aged 18-65 years with type 2 diabetes. This linear relationship not only underscores the pivotal role of arterial stiffness in the pathogenesis of DPN but also positions baPWV as a valuable tool for early risk stratification in clinical practice.
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