CAJ | 학술논문

背景:寻找能有效地克服外耳道重建术后再闭锁的办法.目的:观察镍钛记忆合金渡膜扩张支架预防外耳道重建后再闭锁的作用.设计、时间及地点:病例分析,2001-01/2003-06中山大学附属第三医院耳鼻咽喉-头颁外科病例资料.对象选择外耳道闭锁患者8例,其中先天性闭锁5耳,3耳后天性外耳适闭锁.8耳均有不同程度的传导性听力下降.方法:外耳道成形术中,应用镍钛记忆合金渡膜支架扩张新建外耳道.主要观察指标:新建外耳道直径,术后纯音听阈.结果:8耳外耳道闭锁患者均获得宽大、光滑的外耳道,未见术后瘢痕挛缩和再闭锁现象;术后7玎纯音听阈提高.结论:镍钛记忆合金波膜支架对于预防外耳道重建后再闭锁有一定的作用.
배경:심조능유효지극복외이도중건술후재폐쇄적판법.목적:관찰얼태기억합금도막확장지가예방외이도중건후재폐쇄적작용.설계、시간급지점:병례분석,2001-01/2003-06중산대학부속제삼의원이비인후-두반외과병례자료.대상선택외이도폐쇄환자8례,기중선천성폐쇄5이,3이후천성외이괄폐쇄.8이균유불동정도적전도성은력하강.방법:외이도성형술중,응용얼태기억합금도막지가확장신건외이도.주요관찰지표:신건외이도직경,술후순음은역.결과:8이외이도폐쇄환자균획득관대、광활적외이도,미견술후반흔련축화재폐쇄현상;술후7정순음은역제고.결론:얼태기억합금파막지가대우예방외이도중건후재폐쇄유일정적작용.
BACKGROUND: Methods to effectively overcome re-stenosis or atresia following reconstruction of external auditory canal are explored.OBJECTIVE: To explore the effect of NiTi shape memory alloy netlike bracket to prevent the restenosis or atresia of newly constructed external ear canal in external canal atresia surgery. DESIGN, TIME AND SETTING: Case analysis of aural atresia patients from Department of Otorhinolaryngology Head and Neck Surgery, Third Hospital of Sun Yat-sen University was performed from January 2001 to June 2003. PARTICIPANTS: Eight cases of aural atresia were selected, including 5 patients with congenital aural atresia, and 3 with postnatal aural atresia. All cases had different degrees of conductive hearing loss. METHODS: All cases underwent external canals reconstruction by using NiTi shape memory alloy netlike brackets. MAIN OUTCOME MEASURES: Diameter of newly constructed aural canal and pure tone auditory threshold. RESULTS: All the eight ears had a smooth and wide external ear canal during follow up. No restenosis of canal or cicatricial contracture was found. Pure tone auditory threshold of 7 ears had improved postoperatively. CONCLUSION: NiTi shape memory alloy netlike bracket has definite effect to prevent the restenosis or atresia of new constructed external ear canal.