• Korean Journal of Bronchoesophagology
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• v.16 no.1
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• pp.51-54
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• 2010

Occult bronchial foreign body is that long-standing foreign body lodge in bronchial tree. Occult bronchial foreign bodies arc rare in adults, whereas tracheobronchial aspiration of foreign bodies occurs commonly in children. A 65-year-old man with chronic cough, sputum production, and fever was transferred for treatment of right middle and lower lobc collapse and obstructive pneumonitis as evidenced by imaging studies. The patient was treated with right middle-lower bilobectomy because fiberoptic bronchoscopic removal of the foreign body failed. We report this case with review of literatures.

• Journal of Chest Surgery
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• v.28 no.6
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• pp.633-636
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• 1995

Leiomyoma of the trachea is a rare benign tumor. A case of leiomyoma of the thoracic trachea is described in a 46-year-old woman. The patient complained of productive cough, dyspnea and blood-tinged sputum since July 1993. Plain chest radiographs were not helpful, but computed tomography of the chest showed an intraluminal tracheal mass just above the carina. Fiberoptic bronchoscopy revealed a broad based, nodular mass rising from the posterior tracheal wall, just above the carina. The tumor was excised by sleeve resection and end-to-end anastomosis of the trachea was performed. The patient`s postoperative course was uneventful. She was discharged on the 20th postoperative day.

• Proceedings of the KIEE Conference
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• 2001.07c
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• pp.1820-1822
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• 2001

광파이버 패브리페로 간섭계에서 동작영역을 넓히기 위해 공진기의 길이를 1mm보다 짧은 초소형 간섭계를 구성하고자 하였을 경우, 광출력의 위상변화에 대한 감도가 낮아 전달함수로부터 변화된 위상을 복원하는 과정이 까다로워진다. 이러한 신호복원 과정에는 대부분 신호잡음비를 높여주는 신호처리 수단을 포함하게 되므로 간섭계가 겪은 위상변화를 보다 높은 신뢰성으로 검출하고자 할 때 어떠한 신호처리 방법이 적절한가하는 선택의 문제가 발생된다. 이는 각각의 신호처리방법이 장단점을 가지므로 응용목적에 따른 trade-off가 필요하기 때문이다. 본 연구에서는 참조 간섭계와 센서 간섭계 간의 correlation으로부터 위상을 검출하여 시스템의 잡음을 common mode 잡음으로 처리할 수 있었으며, 디지털 신호처리기법을 응용하여 짧은 공진기로 구성된 센서 간섭계의 위상변화분을 보다 안정적으로 검출하게 되었다.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.9 no.2
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• pp.168-172
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• 1998

Several kinds of surgical methods have been used to treat the submucous cleft palate with hypernasality. The purpose of this study was to evaluate the double opposing Z-plasty which is one of the newly established surgical methods by Dr. Furlow in three cases of submucous cleft palate with hypernasality operated in this department. There were a number of advantage of double opposing Z-plasty. The surgery is adaptable for use in early patient. Midfacial growth retardation and complication were not seen in all cases. Hypernasality was improved subjectively. Using the nasometer, the nasalance score of the postoperative period was compared with that of before surgery, much improvement were noted in 'Ah', 'PaPa'. And fiberoptic endoscope was used to evaluate the velopharyngeal closure pattern. Velopharyngeal closure pattern with velum was improved dramatically, Double opposing Z-plasty seem to be a good procedure for the treatment of submucous cleft palate with hypernasality.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.29 no.1
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• pp.14-18
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• 2018

Head and neck cancer patients are prone to dysphagia and aspiration, which are usually neglected due to treatment of the cancer itself. However, dysphagia and aspiration could cause malnutrition, dehydration, pneumonia, and moreover, have negative impact on the quality of life, morbidity, and mortality. Due to its multifactorial etiology, thorough clinical and instrumental evaluation are necessary. In managing head and neck cancer patients, it has become very important to identify the possibility of dysphagia and aspiration, and to start management as early as possible.

• Sleep Medicine and Psychophysiology
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• v.1 no.2
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• pp.117-124
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• 1994

Obstructive Sleep Apnea Syndrome(OSAS), that is a complex disease of neuromuscular, respiratory and cardiovascular system, can be cured by various treatment such as weight control, medical and surgical intervention. As most of OSAS may be caused by various anatomical abnormalities, preoperative evaluation for exact anatomical site of obstruction must be needed. And various diagnostic procedures such as fiberoptic nasopharyngoscopy, Mueller test, cinefluoroscopy, cephalometry, computerized tomography, polysomnography would be used for this purpose. Uvulopalotopharyngplasty is currently the most popular method for the patient with OSAS among various surgical maneuvers and is very effective for the relieving the symptoms as like snoring, daytime somnolence, and nocturnal restlessness etc. Although subjective improvement is not compatible with it's objective assessment in postoperative evaluation for it's results, uvulopalatopharyngoplasty could be a recommandable surgical procedure because of it's ample effectiveness in promoting symptom improvement without any risk of serious complications.

• Journal of Chest Surgery
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• v.30 no.4
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• pp.441-444
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• 1997

Pure lipoma, originating from the trachea is a very rara disease entity A-37-ycar-old-male patient had suf'leered from intermittent episodes of dyspnea and has been treated under the diagnosis of bronchial asthma for 6 months. On chest CT scan and bronchofiberscopic examination, a round mass with the pedunculated neck was found in the mid-portion of the membranous portion of the intrathoracic trachea. Under the guide of fiberoptic bronchoscope, the mass was extirpated using polypectomy w re loop and eletrocauterization . He was discharged without any events on third postoperative day of operation and has been well without recurrence for 6 months.

• Korean Journal of Bronchoesophagology
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• v.6 no.2
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• pp.209-212
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• 2000

Leiomyoma of the trachea is extremely rare but important to recognize early because they are curable. A case of leiomyoma of the trachea is described in 340-year-Old woman. She was admitted for dyspnea, coughing and sputum for 3 years. Under the impression of asthma she was treated but not improved. Chest CT showed an intraluminal tracheal mass just above the carina. Fiberoptic bronchoscopy revealed a round intraluminal mass on the membranous portion of trachea 4cm above the carina. The tumor was excised by wedge resection and end-to-end anastomosis of the trachea was performed. The pathologic examination revealed leiomyoma of the trachea. We report a case of leiomyoma of the trachea which was successfully resected.

• Korean Journal of Bronchoesophagology
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• v.19 no.1
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• pp.25-27
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• 2013

A 47-year-old man was referred for TEF. He underwent tracheostomy three months ago to maintain prolonged ventilator care. Computed tomography (CT) scan and fiberoptic examination showed bilateral vocal cord palsy with median fixation and about 2 inch sized long segmental tracheoesophageal fistula (TEF) tract along the necrotic cricoid and tracheal cartilages. Narrow field total laryngectomy was performed to remove devitalized cartilages and mucosa, and repair TEF. He discharged without complication except mild stenotic change of tracheal fenestration 19 days later.

• Journal of Korean Foot and Ankle Society
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• v.16 no.1
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• pp.1-8
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• 2012

Major technologic advances in fiberoptic light transmission, video cameras, and instrumentation have allowed great advances in small-joint arthroscopy. Arthroscopy in particular is now well established procedure for accurate diagnosis and operative management of certain ankle disorders. The small size of the ankle and significant periarticular soft tissue structures make placement and advancement of the arthroscope and instrumentation more difficult than in larger joints. Successful arthroscopy of the ankle requires knowledge of the regional anatomy and a familiarity with the available arthroscopic portals. This review article is going to describe the gross and arthroscopic anatomy of the ankle as it relates to current arthroscopic techniques. Particular emphasis is placed on the anatomic relations of the important osseous and soft tissue structures for a safe, reproducible approach to arthroscopic treatment of ankle pathology. Also, current arthroscopic equipment and instruments are included.