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目的 :观察腰骶神经根病变患者肌皮神经节段刺激体感诱发电位 (DSEP)术中监测结果与术后临床症状改善之间的相关性。方法 :对 2 2例经CT或MRI检查证实的腰骶神经根压迫症患者进行神经根减压手术并进行术中诱发电位监测 ,在术前及术后 9周 (8～ 10周 )进行临床随访检查。结果 :减压手术中DSEP的波幅增高 ,则术后临床症状明显改善 (P <0 0 0 1) ;术后DSEP波幅较术前增高 (P <0 0 0 1) ,潜伏期缩短 (P <0 0 0 5 )。结论 :脊神经根减压中DSEP变化与术后临床症状改善呈正相关 ;术中DSEP波幅升高可预示术后临床症状改善。
OBJECTIVE: To observe the correlation between the monitoring results of postoperative DSSS and the improvement of postoperative clinical symptoms in patients with lumbosacral nerve root lesions. Methods: Twenty-two patients with lumbosacral nerve root compression confirmed by CT or MRI underwent nerve root decompression and monitoring of intraoperative evoked potentials. The patients underwent preoperative and postoperative 9 weeks (8-10 weeks) Follow-up examination. Results: The amplitude of DSEP increased after decompression, the clinical symptoms were significantly improved after operation (P <0.01); the amplitude of postoperative DSEP was higher than that before operation (P <0.01) 0 0 5). Conclusions: DSEP changes in spinal nerve root decompression are positively correlated with postoperative clinical symptom improvement. Intraoperative DSEP amplitude can predict the improvement of postoperative clinical symptoms.