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진행된 하인두암의 동시 항암화학 방사선 요법 후 구제 수술의 결과
류인선,한명월,노종렬,남순열,김상윤,최승호 대한이비인후과학회 2011 대한이비인후과학회지 두경부외과학 Vol.54 No.10
Background and Objectives We evaluated treatment outcomes of patients with advanced hypopharyngeal cancer for whom surgical salvage was attempted after primary concomitant chemoradiation therapy (CRT) had failed as a treatment. The pre-salvage factors were assess-ed to predict the prognosis of salvage surgery. Subjects and Method A retrospective analysis was conducted from 1997 to 2006 for 22 patients with stage III-IV hypopharyngeal cancer who had undergone salvage surgery after local and/or regional CRT failures with no distant metastasis. Results Larynx-sacrificing pharyngectomy was performed in 12 (54.5%) of all patients. Postoperative complications occurred in 9 (40.9%), and carotid artery blowout occurred in two of these patients. After salvage surgery, the 2-year and 5-year overall survival rates were 52.8% and 28.9%, respectively. The 2-year disease specific survival rate and locoregional control rate were 45.5% and 60.0%, respectively. The initial N2-3 stage (p=0.038) and the concurrent local and regional failures (p=0.035) were independent predictors for decreased survival after salvage surgery. Two-year overall survival rates for patients with 2, 1, or none of these predictive factors were 23.3%, 66.7%, and 80.0%, respectively (p=0.027). Conclusion Although salvage surgery after CRT has postoperative complications and unfavorable larynx preservation, it can be considered as a viable option with acceptable oncologic outcomes for advanced hypopharyngeal cancer. The initial N2-3 stage and concurrent local and regional failures were independent predictors that can stratify patients into distinct prognostic groups for postsalvage survival.
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류인선,최승호,Ryu, In Sun,Choi, Seung-Ho 대한기관식도과학회 2013 大韓氣管食道科學會誌 Vol.19 No.1
Bilateral vocal cord palsy (BVCP) present a challenging condition which result from various etiologies including iatrogenic recurrent laryngeal nerve injury, progressive neurological disorder, intubation, trauma, tumor and idiopathic cause. Careful history taking, laryngoscopic evaluation, laryngeal EMG, and imaging studies are helpful for providing a precise diagnosis and planning appropriate treatment. BVCP causes airway restriction and not vocal dysfunction. In patients with BVFP, treatment is directed at maximizing the airway, while attempting to limit the negative effects of treatment on vocal function. A variety of surgical procedures are available for mangement of BVCP. The most conservative, limited procedure should be selected initially, and then further surgery and more extensive surgery can be tailored to the patient's airway and voice needs. This review will address the etiology, diagnosis, and managements of BVCP.
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구강 출혈로 발견된 설갑상선에서 CO2 레이저를 이용한 경구강 절제술 1예
류인선,최승호 대한이비인후과학회 2010 대한이비인후과학회지 두경부외과학 Vol.53 No.2
Lingual thyroid is an uncommon developmental anomaly and is the result of failure of the thyroid to descend from the foramen cecum to its prelaryngeal site during embryogenesis. Massive bleeding from a lingual thyroid is an unusual symptom and occasionally fatal. Current surgical treatment options range from tumor extirpation or transposition to excision and reimplantation. The use of CO2 laser for removal of lingual thyroid offers advantages over traditional surgical managements. We experienced a case of lingual thyroid which was successfully excised via transoral approach using CO2 laser. We discussed rationale for the use of the CO2 laser for this lesion. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:99-102
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류인선,이호응,정유진,박현주 한밭대학교 2008 한밭대학교 논문집 Vol.6 No.1
현재 IEEE 802.11 WG에서는 기존의 무선랜보다 높은 전송속도를 지원하기 위해 새로운 IEEE 802.11n 표준을 진행하고 있다. 802.11n PAR에 의하면 802.11n의 데이터 속도는 MAC에서 측정했올 때 최소 100 Mbps가 되도록 규정되어 었다. 네트워크 시율레이터인 NS2는 사용하기 쉽고, 시뮬레이터 전문 가들이 작성한 많은 기술문서들이 있다. NS2가 무선랜의 PHY 를 지원하고 있지만, 제공되는 기능은 극히 제한되어 있다. 따라서 무선랜과 같은 실제 환경을 지원하기 위해서는 NS2의 개정이 반드시 필요하다. 본 논문에서는 실제와 같은 802.11n 시뮬레이터를 위한 NS2 기반의 IEEE 802.11n PLCP 시뮬레이터를 제안 한다. The IEEE 802.11 Working Groups are currently working on new IEEE 802.11n standard for higher throughput than existing wireless local area networks(WLAN). According to the 802.11n Project Authorization Request(PAR), WLAN aims to support data rates at least 100 Mbps, as measured at the medium access controI(MAC) layer. Network Simulator 2(NS2) is tolerably easy to use and has a lot of documentation written by the developers which has in depth explanation of the NS2. It supports functions of WLAN, but it was restricted for physica1(PHY) layer. Therefore, NS2 needs revision to support rea1 environment like WLAN. In this paper we present IEEE 802.11n PHY simulator based on NS2. We specify a detailed simulator design which follows IEEE 802.11n Draft2.0, and then it is simulated by NS2.
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류인선,최승호,Ryu, In-Sun,Choi, Seung-Ho 대한후두음성언어의학회 2012 대한후두음성언어의학회지 Vol.23 No.1
Laryngotracheal stenosis is a congenital or acquired narrowing of the airway, representing a continuum of disease that may affect the glottis, subglottis, and/or trachea. The larynx and trachea are semirigid tubular structures in which concentric scar contraction - a normal wound healing process - tends to narrow the lumen. The diversity of causes, severity, location of stenosis, and association with swallowing and phonation make this disease difficult to compare across patient populations and treating otolaryngologists. The wide array of surgical techniques for any given stenosis attests to the complexity and less than perfect results of the treatment. This review will address the etiology, diagnosis, and management of laryngotracheal stenosis.
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류인선,Ryu, In-Seon 한국단미사료협회 2004 사료산업 Vol.2 No.7
소에 있어서의 하절기 고온다습은 체력의 저하와 평상시에 비해 사료섭취량의 감소로 인한 유량이나 유질 등의 우유생산성, 분만 후 생식기의 회복이 지연되어 자궁내막염이 많이 발생됨에 따라 번식률이 저하되는 등 나쁜 영향을 미칠 뿐만 아니라 질병발생이 많아지게 한다.<중략>
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