No abstract available.
Denture Liners* ; Dentures*

No abstract available.
Management Information Systems* ; Occupational Health Services* ; Occupational Health*

No abstract available.
Coronary Vessels* ; Electrocardiography* ; Spasm*

The most common cardiac cause of massive hemoptysis is mitral stenosis. Mitral regurgitation is rarely complicated by massive hemoptysis. A 48-year-old man with no significant medical history was admitted to our hospital with hemoptysis and production of 500 mL of blood within 24 hours. A pan-systolic murmur was found on chest examination. A chest computed tomography showed airspace consolidation in the right upper and middle lobes, with faint bilateral ground glass opacity. Echocardiography revealed mitral valve prolapse and grade IV mitral regurgitation. The patient was diagnosed with sporadic primary mitral valve prolapse. After mitral valve repair surgery, the patient recovered fully.
Echocardiography ; Glass ; Hemoptysis* ; Humans ; Middle Aged ; Mitral Valve Insufficiency* ; Mitral Valve Prolapse* ; Mitral Valve Stenosis ; Mitral Valve* ; Thorax

Radiation therapy is an effective cancer treatment modality as a primary treatment in early cancer and as an adjuvant treatment in advanced cancer, especially in head and neck lesions, but it also causes irreversible chronic damages to overlying normal tissues that may lead to wound complications. As well, at the microscopic level, radiation injury causes both stasis and occlusion of small vessels. Therefore, surgical reconstruction of previously-irradiated lesions in the head and neck poses a great problem. Fifth-six patients with head and neck lesions underwent 57 microsurgical reconstructions between 1990-1998. Thirteen patients were irradiated before surgery. The previous radiation dose was 30-75.6 Gy. The free tissue transfer was successful in 52 of the 57 microsurgical reconstructions(91.2%). The success rate was 92.3%(12/13) in previously-irradiated patients and 90.9%(40/44) in nonirradiated patients. Postoperative complications, such as flap loss, fistula, and infection, developed in 4 irradiated patients and 8 nonirradiated patients. Overall complication rate was 30.8%(4/13) in previously-irradiated patients and 18.2%(8/44) in nonirradiated patients. Although the failure rate of previously-irradiated patients was higher than that of nonirradiated patients, there was no statistically significant difference between them. Thus, free tissue transfers in patients with previously-irradiated head and neck lesions are suitable for one-stage reconstruction.
Fistula ; Head* ; Humans ; Neck* ; Postoperative Complications ; Radiation Injuries ; Wounds and Injuries

PURPOSE: To describe MR imaging features of hypoxic brain damage in relation to time elapse and prog-nosis of patients. MATERIALS AND METHODS: We reviewed 19 MR studies of 18 patients with hypoxic brain damage. MR imaging studies were performed between 1 to 20 days after the hypoxic insults (mean 8.6 days). MR images were analyzed with regard to the locations of abnormal signal intensities, the presence of brain edema. And imaging findings were correlated with the time elapse after the insults and the prognosis of patients. RESULTS: On 19 cases of MR studies, abnormal high intensities on T2-weighted images were found in the basal ganglia (15, 78.9%), cerebral cortex (13, 68.4%), white matter (9, 47.4%), thalamus (6, 31.6%), cerebellum (4, 21.1%) and brainstem (1, 5.3%), respectively. Cerebral cortical involvement was typically bilateral and diffuse, but sometimes limited to the parieto-occipital area. The brainstem and cerebellar involvement was rare and in all cases, cerebral cortical lesions accompanied. Most of the white matter lesions were accompanied with cortical and deep gray matter lesions and found in subacute period(>6 days). The cortical high signal intensity lesions on T1-weighted image were found mostly in subacute stage, but in some cases involvement was also found in acute stage (< or =6 days). The cortical edema is found on 11 cases in acute and subacute stages. In cases of recovered consciousness, cortical involvement and edema on MR were rare. CONCLUSION: MR findings of hypoxic brain damage were various, but diffuse bilateral involvement of cortex and/or deep gray matter was found in most of the cases. White matter involvement was rarely found in acute stage and usually found in subacute stage. In cases of good pronosis, cortical involvement and edema were rare.
Anoxia ; Basal Ganglia ; Brain ; Brain Edema ; Brain Stem ; Cerebellum ; Cerebral Cortex ; Consciousness ; Edema ; Humans ; Hypoxia, Brain* ; Magnetic Resonance Imaging ; Prognosis* ; Thalamus

The survey of occupational injury has not been performed in Korean Air Force. The aim of this survey is to identify the feature of the occupational injury at the Korean Air force base. The occupational injury were monitored at the medical group in a Korean air base, from Aug 1998 to Jul 1999. Because the medical group has supported 2 different groups, we analysed and described some results seperately; group 1 consisted of workers in line maintenance operation, group 2 included workers in base maintenance operation. There were 59 injuries(injured persons) in group 1, and 9 injuries in group 2, so the incidence(per 1000) were 21.5, 4.46 respectively. 11 persons transferred to well-equiped hospital. Most of injured persons were air men, and then sergeant, civilian employee in order. The median age of injured persons was 22 years old in group 1 and 21 years old in group 2. The median work experience was 0.8 and 8 years respectively. The median delay time to arrive at the hospital from the time of injury were 30 min in group 1, 20 min in group 2, but maximum delay in group 1 was about 9 days. The occupational injuries were most common in October in the year, Tuesday in a week. Also the injury occurred common from 13 to 13:59, and from 11 to 11:59 in a day. The injury occurred most commonly by the collision with something, when working with more than 4 coworkers, and repairing the machinery. The most common injured part of the body were hands and feet, the patterns of injury were laceration and fracture.
Foot ; Hand ; Humans ; Incidence ; Lacerations ; Male ; Occupational Injuries* ; Young Adult

Skip lesion is not uncommon feature in osteosarcoma and considered to be importantly associated with poor prognosis factor, and thus, should be excised with the main mass. The accurate pre-operative evaluation of the intramedullary extent of osteosarcoma is essential, because it determines the level of bone resection. Among the reliable detection methods, bone scan has a drawback of high rate of false negative results and regional MRI has a difficulty to cover the whole involved lesions without clinical suspicion. The authors report a case of osteosarcoma of the distal femur with a proximal skip lesion that was not detected by either regional MR imaging or by bone scan, but which was visualized by FDG-PET/CT.
Complement System Proteins ; Femur ; Neoplasm Metastasis ; Osteosarcoma ; Prognosis

BACKGROUND: Healthcare-associated infections (HAIs) are among the most important threats to patient safety. When hospitalized children face these threats, there is morbidity, mortality, prolonged hospitalization, and increased healthcare costs. Research on local healthcare epidemiology is necessary to enhance collective knowledge and evidence formanaging this problem. METHODS: We performed a retrospective analysis of databases of patients who were diagnosed with HAIs at Chung-Ang University Hospital (CAUH) from 2007 through 2011. Cases were selected from the microbiology registry databases. The data on prevalence of HAIs in various wards and its annual trends were compared to previously reported nationwide data. Moreover, we analyzed the patterns of antibiotic susceptibility results for HAI pathogens. RESULTS: A total of 181 HAIs were identified in 122 patients. The HAI rate among pediatric patients at CAUH was 2.4/1,000 person-hospital days. Urinary tract infections (UTIs) (53 episodes, 29.3%) were the most common, followed by pneumonia (33 episodes, 18.2%). Staphylococcus aureus was found to be the most common gram-positive organism, whereas Escherichia coli was the most common gram-negative organism. Methicillin-resistant S. aureus (MRSA) comprised 84% of the S. aureus infections. Imipenem resistance was detected in 58.8% and 55.0% of Acinetobacter baumannii and Pseudomonas aeruginosa isolates, respectively. CONCLUSION: Between 2007 and 2011, UTIs were the most common type of HAIs, and MRSA was the most common pediatric HAI pathogen, both in the general ward and intensive care unit at the CAUH. Further research on the epidemiology and pathogenesis of HAIs is necessary and prevention measures should be implemented to prevent HAIs in children.
Acinetobacter baumannii ; Child ; Child, Hospitalized ; Delivery of Health Care ; Escherichia coli ; Health Care Costs ; Hospitalization ; Humans ; Imipenem ; Intensive Care Units ; Methicillin Resistance ; Methicillin-Resistant Staphylococcus aureus ; Microbial Sensitivity Tests ; Patient Safety ; Patients' Rooms ; Pneumonia ; Prevalence ; Pseudomonas aeruginosa ; Retrospective Studies ; Staphylococcus aureus ; Urinary Tract Infections

No abstract available.
Femur*