Tracheal stenosis can be caused by various etiologies, such as infectious disease, trauma from previous prolonged incubation, airway surgery, or external blunt trauma, and neoplasm. Recently, the development of emergency and intensive care units leads to the primary cause of airway stenosis using airway devices. The stenotic lesions can be produced at any level between the vocal cord and the site of the tip of the tube. Laryngotracheal stenosis may be due to prolonged endotrachel intubation, especially with large tube, large tracheostomy stoma, too highly placed oacheostomy, erosion by local infection, the prying action of heavyweight equipment that connects the tracheostomy to the ventilator, excessive cuff pressure, or erosion by the tip of the tube. Prevention of tracheal stenosis is of key importance by understanding and attending to these causes. We experienced three cases of tracheal stenosis occurred after use of airway devices. In first and second cases, We performed end-to-end anastomosis artier resection of stenotic segment of the trachea in a 22-year-ol4 female and a 25-year-old male. They ha6 been treated with prolonged endotracheal incubation and emergency tracheostomy, respectively, for a ventilatory support for the respiratory failure after falling down from a height. The stenotic lesions occurred at the cuff site in the first case and at the stomal level in the second case. In third case, We performed one-stage laryngotracheoplastic procedure for subglottic stenosis in a 23-year-old male. He had been treated with emergence tracheostomy which had been placed too high for a ventilators support for the respiratory failure after traffic accident. The stenotic lesion occurred at the stomal level. The postoperative courses were uneventful.
Accidents, Traffic ; Adult ; Communicable Diseases ; Constriction, Pathologic ; Emergencies ; Female ; Humans ; Intensive Care Units ; Intubation ; Male ; Respiratory Insufficiency ; Trachea ; Tracheal Stenosis* ; Tracheostomy ; Ventilators, Mechanical ; Vocal Cords ; Young Adult

No abstract available.
Lipopolysaccharides* ; Otitis Media with Effusion* ; Otitis Media* ; Otitis*

No abstract available.
Retrospective Studies* ; Tracheal Stenosis*

BACKGROUND: Congenital aortic stenosis in children is characterized by "excessive" left ventricular hypertrophy with reduced left ventricular systolic wall stress that allows for supernormal ejection performance. We hypothesized that left ventricular wall stress was decreased immediately after surgical correction of pure congenital aortic stenosis. Also measuring postoperative left ventricular wall stress was a useful noninvasive measurement that allowed direct assessment for oxygen consumption of myocardium than measuring the peak systolic pressure gradient between ascending aorta and left ventricle for the assessment of surgical results. MATERIAL AND METHOD: Between September 1993 and August 1999, 8 patients with isolated congenital aortic stenosis who underwent surgical correction at Yonsei cardiovascular center were evaluated. There were 6 male and 2 female patients ranging in age from 2 to 11 years(mean age, 10 years). Combined Hemodynamic-Ultrasonic method was used for studying left ventricular wall stress. We compared the wall stress peak systolic pressure gradient and ejection fraction preoperatively and postoperatively. RESULT: After surgical correction peak aortic gradient fell from 58.4+/-17.6, to 23.7+/-17.7 mmHg(p=0.018) and left ventricular ejection fraction decreased but it is not statistically significant. In the consideration of some factors that influence left ventricular end-systolic wall stress excluding one patient who underwent reoperation for restenosis of left ventricular outflow tract left ventricular end-systolic pressure and left ventricular end-systolic dimension were fell from 170.6+/-24.3 to 143.7+/-27.1 mmHg and from 1.78+/-0.4 to 1.76+/-0.4 cm respectively and left ventricular posterior wall thickness was increased from 1.10+/-0.2, to 1.27+/-0.3cm but it was not statistically singificant whereas left ventricular end-systolic wall stress fell from 79.2+/-24.9 to 57.1+/-27.6 kdynes/cm2(p=0.018) in 7 patients. For one patient who underwent reoperation peak aortic gradient fell from 83.0 to 59.7 mmHg whereas left ventricular end-systolic wall stress increased from 67.2 to 97.0 kdynes/cm2 The intervals did not change significnatly. CONCLUSION: We believe that probably some factors that are related to left ventricular geometry influenced the decreased left ventricular wall stress immediately after surgical correction of isolated congenital aortic stenosis. Left ventricular wall stress is a noninvasive measurement and can allow for more direct assesment than measuring peak aortic gradient particularly in consideration of the stress and oxygen consumption of the myocardium therefore we can conclude it is a useful measurement for postoperative assessment of congenital aortic stenosis.
Aorta ; Aortic Valve Stenosis* ; Blood Pressure ; Child ; Equidae ; Female ; Follow-Up Studies* ; Heart Ventricles ; Humans ; Hypertrophy, Left Ventricular ; Male ; Myocardium ; Oxygen Consumption ; Reoperation ; Stroke Volume

No abstract available.
Head* ; Neck*

No abstract available.
Diverticulum*

No abstract available.
Mastoid* ; Otitis Media with Effusion* ; Otitis Media* ; Otitis*

No abstract available.
Carcinoma, Squamous Cell* ; Palatine Tonsil* ; Tongue*

BACKGROUND: Recent times, elderly population increased due to development of medical treatment and extension of the average span of a human life. Hereupon, variable studies and measures for elderly population were made an attempt in the world at large. In medical treatment, an aged person related an institutes begin to vivacious activity for reflection of this national concern. So we survey the transition of internal diseases of the aged in Korea for 10 years lo support the policy of medical treatment. METHODS: In order to access this study, we use data of korea medical insurance coorporation and national statistical office republic of Korea. We classified internal diseases into several diseases by age, and sex. RESULTS: 1. The transition of out-Patients Digestive troubles have the most high prevalence in both men and women, and cardiovascular diseases are become increasing. Endocrine diseases are become increasing also. 2. The transition of in-patients 1) 65-69 years old Neoplastic diseases and digestive diseases are high in men, but cardiovascular disease are become increasing. Digestive diseases are high in women but, cardiovascular disease and endocrine diseases are become increasing. 2) 70-74 years old Cardiovascular diseases are decreased in men and especially in women. 3) Over 75 years old Digestive diseases are decreased in both men and women, endocrine diseases and cardiovascular diseases are increased in women. 3. The transition of the cause of death. The cardiovascular diseases are high in both men and women, and showed decreasing tendency gradually, Neoplastic diseases and endocrine diseases are increasing in steady. CONCLUSION: In our data, the cardiovascular diseases are high especially, in women according to age in the transition of internal diseases of an aged man in Korea, recent 10 years and endocrine diseases are increasing in steady. So, in medical treatment, we must consider many-sided methods to access this population
Academies and Institutes ; Aged ; Cardiovascular Diseases ; Cause of Death ; Endocrine System Diseases ; Female ; Humans ; Insurance ; Korea* ; Male ; Outpatients ; Prevalence ; Republic of Korea

No abstract available.
Mastoid* ; Otitis Media with Effusion* ; Otitis Media* ; Otitis*