Xia Zhang1, Chen Fang2, Xiang Li1, Yong-Jun Cao1, Qi-Lin Zhang1, Hong-Hong Zhang2, Yun Huang2, Ji Hu3, Chun-Feng Liu4. 1. Department of Neurology and Suzhou Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China. 2. Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China. 3. Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China. Electronic address: huji_hj@163.com. 4. Department of Neurology and Suzhou Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China. Electronic address: liuchunfeng@suda.edu.cn.
Abstract
BACKGROUND: Small nerve fibers are more easily injured than large ones for diabetic peripheral neuropathy (DPN). The study investigated the characteristics and related risk factors of DPN of T1DM patients using nerve conduction velocity and CPT values, which provided evidences for its early diagnosis. METHODS: 70 T1DM patients and 48 healthy volunteers were included. All subjects accepted nerve conduction velocity and CPT examinations for four limbs. Detailed clinical indicators were recorded. CPT values were compared between TIDM group and control group. The risk factors affecting DPN were further explored. RESULTS: Compared with the control group, CPT values under three frequencies were decreased in T1DM group. The abnormality rate of sural nerves was higher than that of median nerves (P<0.001). Median nerve dysfunction mainly presented as hypoesthesia under 250Hz and 5Hz current stimulus. And sural nerve dysfunction mainly presented as hyperesthesia under three frequencies. Compared with left median nerve, abnormal rate of right median nerve was higher under 2000Hz current stimulus (P=0.035). However, abnormal rate of left sural nerve was higher than that of right side under 250Hz and 5Hz current stimulus (P=0.001, <0.001). Duration, NDS scores and CPT values of right median nerve under 2000Hz current stimulus were independent risk factors of abnormal nerve conduction velocity. CONCLUSIONS: The study proved that DPN of T1DM are mainly lower limb-injured., amyelinated and thin myelinated nerve fiber-involved. CPT can be combined with traditional nerve conduction velocity examination, which will help the diagnosis of DPN of T1DM earlier and more comprehensively.
BACKGROUND: Small nerve fibers are more easily injured than large ones for diabetic peripheral neuropathy (DPN). The study investigated the characteristics and related risk factors of DPN of T1DM patients using nerve conduction velocity and CPT values, which provided evidences for its early diagnosis. METHODS: 70 T1DM patients and 48 healthy volunteers were included. All subjects accepted nerve conduction velocity and CPT examinations for four limbs. Detailed clinical indicators were recorded. CPT values were compared between TIDM group and control group. The risk factors affecting DPN were further explored. RESULTS: Compared with the control group, CPT values under three frequencies were decreased in T1DM group. The abnormality rate of sural nerves was higher than that of median nerves (P<0.001). Median nerve dysfunction mainly presented as hypoesthesia under 250Hz and 5Hz current stimulus. And sural nerve dysfunction mainly presented as hyperesthesia under three frequencies. Compared with left median nerve, abnormal rate of right median nerve was higher under 2000Hz current stimulus (P=0.035). However, abnormal rate of left sural nerve was higher than that of right side under 250Hz and 5Hz current stimulus (P=0.001, <0.001). Duration, NDS scores and CPT values of right median nerve under 2000Hz current stimulus were independent risk factors of abnormal nerve conduction velocity. CONCLUSIONS: The study proved that DPN of T1DM are mainly lower limb-injured., amyelinated and thin myelinated nerve fiber-involved. CPT can be combined with traditional nerve conduction velocity examination, which will help the diagnosis of DPN of T1DM earlier and more comprehensively.
Authors: Y M Costa; P Karlsson; L R Bonjardim; P C R Conti; H Tankisi; T S Jensen; J R Nyengaard; P Svensson; L Baad-Hansen Journal: Sci Rep Date: 2019-01-17 Impact factor: 4.379
Authors: Francesca D'Addio; Ida Pastore; Cristian Loretelli; Alessandro Valderrama-Vasquez; Vera Usuelli; Emma Assi; Chiara Mameli; Maddalena Macedoni; Anna Maestroni; Antonio Rossi; Maria Elena Lunati; Paola Silvia Morpurgo; Alessandra Gandolfi; Laura Montefusco; Andrea Mario Bolla; Moufida Ben Nasr; Stefania Di Maggio; Lisa Melzi; Giovanni Staurenghi; Antonio Secchi; Stefania Bianchi Marzoli; Gianvincenzo Zuccotti; Paolo Fiorina Journal: Acta Diabetol Date: 2022-06-22 Impact factor: 4.087