关键词: 感觉统合失调, 感觉神经传导, 感觉电流阈值, 儿童

Abstract: Objective To quantitatively evaluate the difference of sensory nerve fiber conduction between normal and sensory integrative dysfunction (SID) children. Methods The current perception threshold current perception threshold (CPT) was used with 3 types of current frequency (2 000,250 Hz and 5 Hz) to test the bilateral trigeminal nerve,median nerve and superficial peroneal nerve thick myelinated fiber (Aβ),fine myelinated fiber (Aδ) and unmyelinated fibers (C) of 128 cases of SID and 96 cases of normal children. Results 1)The abnormalities of SID:The paraesthesia of the trigeminal nerve was with the highest abnormal rate (left 63.28%,right 72.66%).The percentage of paraesthesia of the trigeminal nerve (both sides) and the median nerve was statistically significant (P<0.05) in 3 types of current frequency (2 000,250Hz and 5Hz).There was no statistical significance between those 3 types of current frequency in the superficial peroneal nerve.2)The difference of CPT in different parts of the body between the two groups:The CPT of SID children was higher than the contrast group under 2 000 Hz,250 Hz.The difference was statistically significant under 2 000 Hz (P<0.05).3)The correlation of the sensory integrative score with CPT:The sensory integrative score was negatively correlated with CPT under 2 000 Hz,250Hz (P<0.05). Conclusion Comparing with normal children,the children with SID have abnormality in sensory nerve conduction,and the thick myelinated fiber (Aβ) show more frequency of abnormality than the thin myelinated fiber (Aδ).

Key words: sensory integrative dysfunction, children, sensory nerve conduction, current perception threshold