Key result
Carotid atherosclerosis was an independent risk factor for small fiber nerve dysfunction in type 2 diabetes patients (OR 2.326, P=0.017), especially bilateral carotid atherosclerosis (OR 5.042).
Why the study?
To explore whether carotid atherosclerosis is an independent risk factor for small fiber nerve dysfunction in patients with type 2 diabetes mellitus.
Is carotid atherosclerosis an independent risk factor for small fiber nerve dysfunction in patients with type 2 diabetes mellitus?
Cross-Sectional (n=247)
No
Is carotid atherosclerosis an independent risk factor for small fiber nerve dysfunction in patients with type 2 diabetes mellitus?
Odds Ratio: 2.326
p-value: p=0.017
Carotid atherosclerosis is significantly associated with quantitative sensory testing abnormalities and is an independent risk factor for small fiber nerve dysfunction in type 2 diabetes.
Carotid atherosclerosis may flag higher small fiber neuropathy risk in type 2 diabetes; leaves open causal role and need for prospective validation.
AIMS/INTRODUCTION: To explore whether carotid atherosclerosis is an independent risk factor for small fiber nerve dysfunction in type 2 diabetes mellitus patients. MATERIALS AND METHODS: A total of 247 type 2 diabetes patients from Nanjing Drum Tower Hospital received carotid ultrasonography and quantitative sensory testing, including cold and warm detection thresholds, and some patients received cold and heat pain detection thresholds, respectively. According to the results of quantitative sensory testing, patients were divided into normal small fiber nerve function (NSF) and small fiber nerve dysfunction (SFD) group. Meanwhile, patients were divided into the non-carotid atherosclerosis group, carotid intimal thickening, unilateral carotid atherosclerosis and bilateral carotid atherosclerosis group. The correlation between carotid ultrasonography with quantitative sensory testing parameters was analyzed by SPSS 26.0. RESULTS: First, the incidence rate of SFD increased significantly in patients with carotid atherosclerosis (72.2%, P < 0.001) especially in bilateral carotid atherosclerosis (81.7%, P < 0.001). Second, compared with the NS group, the carotid intima-media thickness in SFD was thicker (P = 0.018) and the size of atherosclerotic plaque was larger (P < 0.001). In addition, the cold detection threshold decreased (P < 0.001), whereas the warm detection threshold (P < 0.001) and heat pain detection threshold (P < 0.001) increased as aggravation of carotid atherosclerosis. In the correlation analysis, the size of atherosclerotic plaque presented a positive correlation with the warm detection threshold (r = 0.476, P < 0.001) and heat pain detection threshold (r = 0.213, P < 0.001), but presented a negative correlation with the cold detection threshold (r = -0.239, P < 0.01). Furthermore, carotid atherosclerosis (odds ratio 2.326, P = 0.017), especially bilateral carotid atherosclerosis (odds ratio 5.042, P = 0.001), was an independent risk factor for SFD (P < 0.05). CONCLUSIONS: Carotid atherosclerosis was significantly associated with quantitative sensory testing and found to be an independent risk factor for small fiber nerve dysfunction in type 2 diabetes patients.
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Guo et al. (2022) conducted a cross-sectional in Type 2 diabetes mellitus (n=247). Carotid atherosclerosis vs. Non-carotid atherosclerosis was evaluated on Small fiber nerve dysfunction (SFD) (OR 2.326, p=0.017). Carotid atherosclerosis was an independent risk factor for small fiber nerve dysfunction in type 2 diabetes patients (OR 2.326, P=0.017), especially bilateral carotid atherosclerosis (OR 5.042).
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