视觉诱发电位对鼻咽癌放疗患者视功能监测的临床研究

The Clinic Investigation on Injury of the Eye Tested by Visual Evoked Potential with Nasopharyngeal Carcinoma After Radiotherapy

目的 研究视觉诱发电位对鼻咽癌放疗患者视功能的监测。方法 用视诱发电位 (VisvalEvokedPotential ,VEP)检查对 72例鼻咽癌病人放射治疗后视功能的损伤情况。结果 在检查中发现鼻咽癌原发灶靶区剂量 60～ 69Gy者VEP异常率为 2 4 3 %( 9/3 7)。 70～ 86Gy者为 40 0 %( 14 /3 5 )。后者异常率明显高于前者。结论 放射治疗可产生延迟性视功能的损害 ,在鼻咽癌的放射治疗设计中 。

Objective To study the clinic investigation on injury of the eye tested by visual evoked potential with nasophayngeal carcinoma after radiotherapy Methods Visual evoked potential was used to test the injury of 72 cases with nasopharyngeal carcinoma after radiotheraphy Result It was found that the unusual rates were 24 3% at radiotherapy dose 60-69 Gy, 40% at radiotherapy dose 70-86 Gy the later rates were much higher than before Conclution It proved that radiation could cure injured delayed visual sense When making a plan of nasopharyngeal radiation , the visual sense should be protected