鼻咽癌放疗致位置性眩晕(附3例报告)

Benign paroxysmal positional vertigo following radiotherapy for nasopharyngeal carcinoma (report of 3 cases)

目的 :探讨电离辐射对内耳前庭的影响。方法 :报道鼻咽癌 ( NPC)放疗致发作性位置性眩晕 ( BPPV)伴听力减退患者 3例。采用耳石微粒复位法 ( PRM)治疗 BPPV,针对听力减退给予丹参治疗。结果 :3例 BPPV,2例痊愈 ,1例显效 ;听力下降的 4耳语音频率平均提高 10 d B。结论 :BPPV可能与辐射所致的前庭损害有关 ;PRM是治疗

Objective:To investigate the effect of ionizing radiation on the vestibule of the inner ear.Method:Three patients with benign paroxysmal positional vertigo (BPPV) accompanied by hearing loss following radiotherapy for nasopharyngeal carcinoma (NPC) were reported.Particle repositioning maneuver (PRM) was used as treatment for BPPV,and salvia miltiorrhiza tablets were taken orally to treat hearing loss.Result:Two of three cases with BPPV recovered and one was effective;Mean phone frequency hearing increased 10 dB compared with that before therapy.Conclusion:Occurence of BPPV in this series may be related to radiation damage on the vestibule;PRM is a effective modality for the patients with BPPV.