No abstract available.

BACKGROUND: Oxygen concentrators are convenient to operate and economical for patients with chronic obstructive pulmonary disease (COPD). However, oxygen concentrators are not manufactured domestically and the COPD patients are currently treated with imported oxygen concentrators. To evaluate the efficacy and safety of domestically developed prototype oxygen concentrator before clinical application, the efficacy and safety of the domestic oxygen concentrator were evaluate by comparing with the imported one. Meterial and METHODS: The clinical tests were performed on 36 hyperhydrosis patients from April 1999 to August 1999. Domestic and imported oxygen concentrators were in turn applied to the same patient, who inspired oxygen for 60 minutes at a rate of 3 liters per minute through nasal prong. The oxygen concentrator, which was applied first, was randomly allocated. The arterial partial oxygen pressure (PaO2) was estimated to compare the efficacy; and the carboxy hemoglobin(COHb), pH, arterial CO2 partial pressure, pulse rate, blood pressure, and respiration rate to compare the safety before and after applying each oxygen concentrator. A student t-test was used to analyze the results. RESULTS: In respect to efficacy, the difference in the change of PaO2 before and after the application between two concentrators was not statistically significant. In respect to safety, the differences in the changes of COHb, pH, partial pressure of arterial CO2, pulse rate, blood pressure, respiration rate between two concentrators were also not statistically significant. CONCLUSION: The domestically developed oxygen concentrator, showed satisfactory efficacy and safety when compared with the imported one.
Blood Pressure ; Heart Rate ; Humans ; Hydrogen-Ion Concentration ; Oxygen* ; Partial Pressure ; Pulmonary Disease, Chronic Obstructive ; Respiratory Rate

No abstract available.
Cryopreservation* ; Trachea*

No abstract available.
Thoracic Surgery, Video-Assisted*

No abstract available.
Esophageal Neoplasms*

No abstract available.
Biopsy, Fine-Needle* ; Lung Neoplasms* ; Lung* ; Thoracic Wall* ; Thorax*

No abstract available.
Child* ; Humans ; Prone Position* ; Thoracotomy*

Adenoid cystic carcinoma of the esophagus was regarded as an esophageal counterpart of the more common adenoid cystic carcinoma of the salivary gland. However it is a rare lesion which has more malignant differentiations and thus shows more aggressive clinical behaviors than the latter. Although many authors think that this tumor arises from the submucosal esophageal gland, its histogenesis is still in dispute. A 60-year-old male patient had a tumor in the middle third of the esophagus which was incidentally found during gastrofiberscopy. The tumor was 1.5 cm sized and covered with intact mucosa. The patient underwent Ivor Lewis operation, and the postoperative complication of ARDS eventually subsided. On microscopic examination of the surgically resected specimen, the adenoid cystic carcinoma which was mainly confined to the submucosa extended to the proper muscle layer, however no regional lymph node metastasis was present. The patient is still alive and well 6 months after the surgery.
Adenoids* ; Carcinoma, Adenoid Cystic* ; Dissent and Disputes ; Esophagus* ; Humans ; Lymph Nodes ; Male ; Middle Aged ; Mucous Membrane ; Neoplasm Metastasis ; Postoperative Complications ; Salivary Glands

We report a case of epidermolysis bullosa acquisita in a 53 year-old woman who had. extreme skin fragility, trauma induced blisters and erosions usually localized to extensor site of the skin surface, and healing with scars and milia for several years. Histologic findings of perilesional skin showed normal epidermis, subepid malblister and spirsely infiltration of inflammatory cells. Direct immuncofluorescence showed depositiori of IgCi and C3 in a linear pattern along the epidermal basement, membrane in the per ilesional skin. In indirect immuriofluorescence, using 1.0M sodium chloride separated nor mal human skin as the sntbstrate, antitodies(IgG at a titer of 1:40) were bound to dermal site of the separation, indicating that the patient serum yields the reaction in or below the lamiria densa. Electronmicroscopic findings showed the roof of the blister was located. below the basal lamiria.
Blister ; Cicatrix ; Epidermis ; Epidermolysis Bullosa Acquisita* ; Epidermolysis Bullosa* ; Female ; Humans ; Membranes ; Middle Aged ; Skin ; Sodium Chloride

From March 1979 through December 1986, 124 patients with early stage carcinoma of the uterine cervix received curative radiation therapy. According to FIGO classification, 35 patients were stage IB and 89 were stageIIA. In stage IB, five year locoregional control, five year disease A, five year locoregional control, five disease free survival, and five year overall survival were 78.0%, 66.8%, and 72.1%, respectively. To identify prognostic factor, pretreatment including age, ECOG performance status, number of pregnancies, history of diabetes mellitus and hypertension, histology, size and shape of primary tumor, CT findings and blood parameters were retrospectively analyzed in terms of locoregional control, disease free survival and overall survival using univariate analysis and multivariate analysis. In univariate analysis, tumor size on physical examination and rectal invasion on CT significantly affected locoregional control, disease free survival and overal survival. Parametrial involvement on CT was a significant prognostic factor on locoregional control and disease free survival. Hemoglobin level affected disease free survival and overall survival. Histology and age were significant pronostic factor on locoregional control. In multivariate analysis excluding CT finding, tumor size on physical examination was a significant factor in terms of locoregional control and overall survival. Hemoglobin level was significant in terms of disease free survival. In multivarate analysis including CT, histology was a prognostic factor on locoregional control and disease free survival. Hemoglobin level and rectal invasion on CT were significant factors on locoregional control.
Cervix Uteri* ; Classification ; Diabetes Mellitus ; Disease-Free Survival ; Female ; Humans ; Hypertension ; Multivariate Analysis ; Physical Examination ; Pregnancy ; Radiotherapy ; Retrospective Studies ; Uterine Cervical Neoplasms