No abstract available.
Bacteremia* ; Staphylococcus aureus* ; Staphylococcus*

No abstract available.
Hamartoma*

The purpose of this study was to compare the corrosion characteristics between implant fixture and two types of abutment screw; gold screw, titanium screw. The anodic polarization behavior, the galvanic corrosion behavior, and the crevice corrosion behavior of prepared samples were investigated using potentiostat and scanning electron microscope. The results were as follows : 1. Anodic polarization behavior of samples: The primary passivation potential of implant fixture was -420mV, implant abutment was -560mV, titanium screw was -370mV and gold screw was -230mV. All samples were shown to have a high corrosion potential and good formation of passive film. The critical passive current density of gold screw was higher than of other samples and the sample of gold screw showed a unstable passive film formation at passive region. 2. Galvanic corrosion behavior of samples: Contact current density between implant fixture and titanium screw showed 8.023x 10-5C/cm2. Contact current density between implant fixture and gold screw showed 5.142x 10-5C/cm2. 3. Crevice corrosion behavior of samples : The crevice corrosion resistance of sample using titanium screw was higher than that of sample using gold screw, and a severe corrosion morphologies were observed at the fixture-screw interface by the scanning electron microscope.
Corrosion* ; Titanium

We measured poiyethylene wear radiographically in 85 cementless primary total hip arthroplasties by the modified technique of Livermore et al. All the patients were followed up for at least five years (mean, 6.31 years; range, 5 years-8 years 2 months). The mean extent of linear wear was 0.88mm (range, 0.0083-3.2839mm), and the mean rate of linear wear was 0.14mm/year(range, 0.00-0.47mm /year). The mean volumetric wear was 539.42mm (range, 5.11 2022.09mm), and the mean rate of volumetric wear was 87.69mm/year(range, 0.65-290.12mm/year). The polyethylene wear was correlated inversely with the patients age only, but was not influenced by weight or gender of the patients, Harris hip score, thickness of the polyethylene, the abduction angle of acetahular cup, or the duration of in situ implantation. Osteolysis developed in the femur of 34 hips(40%) and in the acetabulum of 11 hips(12.9%). Radiographic loosening was found in one case in the femur and none in the acetabul pm. The extent of polyethylene wear was significantly correlated with frequencies and sizes of the osteolytic lesion and was not directly associated with radiographic loosening of the prostheses. Calcar resorption was observed in 39 hips(45.9%) and was not associated with polyethylene wear. These results indicated that polyethylene wear of primary total hip arthroplasty should be considered one of major causes of osteolysis and has no direct relationship with prosthesis loosening. To reduce the extent of polyethylene wear, the material characteristics of polyethylene should be improved or new, durable, articulating materials should be researched.
Acetabulum ; Arthroplasty ; Arthroplasty, Replacement, Hip* ; Femur ; Hip ; Humans ; Osteolysis* ; Polyethylene* ; Prostheses and Implants ; Prosthesis Failure

No abstract available.
Stents*

Ovarian mature cystic teratoma containing benign prostatic tissue is rare and only 11 cases have been reported in the literature to date. We report a case of mature cystic teratoma of the ovary containing prostatic tissue. A 23-year-old female patient came to our hospital complaining of irregular menstruation for 3 months. Her menarche had occurred when she was 13 years old. The patient showed no evidence of virilization nor of endocrinopathy. A goose-egg-sized mass was palpable in the left lower abdomen on physical examination. Ultrasonography revealed a cystic ovarian mass with internal echogenecity. Microscopic finding was consistent with that of usual mature cystic teratoma except for a 1.5 cm focus of prostatic and bladder tissues. Prostatic tissue demonstrated strong immunoreactivity for prostatic specific antigen (PSA), prostatic alkaline phosphatase (PAP) and cytokeratin 7. Basal cells of the prostate glands were positive for high molecular weight cytokeratin (34betaE12). Although ovarian mature cystic teratoma containing prostatic tissue has been reported as a rare occurrence, a careful examination with immunohistochemical staining may increase the detection of prostatic tissue in mature cystic teratoma of the ovary.
Abdomen ; Adolescent ; Alkaline Phosphatase ; Female ; Humans ; Keratin-7 ; Keratins ; Menarche ; Menstruation ; Molecular Weight ; Ovary ; Physical Examination ; Prostate ; Teratoma* ; Ultrasonography ; Urinary Bladder ; Virilism ; Young Adult

Authors have experienced 27 cases of traumatic hyphemas in our department for recent years. All the patients was taken systemic administration of Diamox as ocular hypotensives, prednisolone as anti-inflammatory agent and hemostatics, and antihistaminics for neutralize the histamin like substance which may emerge after vascular injury by trauma, without any surgical procedures or other medication. The result of treatment satisfactory as hyphemas were absorbed clerly within short period without any complication and visual deterioration.
Acetazolamide ; Hemostatics ; Humans ; Hyphema* ; Prednisolone ; Vascular System Injuries

No abstract available.
Animals ; Mice* ; Plants, Medicinal* ; Sarcoma 180* ; Sarcoma*

Since the introduction of percutaneous mitral valvotomy(PMV) in 1984, PMV was an effecive alternative to surgical commissurotomy in selected patients with severe mitral stenosis. Also PMV was an excellent palliative strategy in such patients who were high risk for operative management or longterm anticoagulation was not feasible. We performed PMV in a patient with very tight mitral stenosis and severe pulmonary hypertension under the general anesthesia because the patient was anticipated to be uncooperative due to mental problem, who was diagnosed as schizophrenia 16 years ago. Robinol was used for premedication and i.v fentanyl was used for maintenance of anesthesia. Inoue balloon was introduced into the LV and gradual ballooning was performed with favorable results. Total anesthesia time and interval from internal jugular vein puncture to the completion of valvuloplasty were 1 hour 45 min and 40 minutes respectively. Hemodynamic variables were improved immediately after intervention and mitral valve area was increased from 0.5cm2 to 1.3cm2.
Anesthesia ; Anesthesia, General* ; Fentanyl ; Hemodynamics ; Humans ; Hypertension, Pulmonary ; Jugular Veins ; Mitral Valve ; Mitral Valve Stenosis* ; Premedication ; Punctures ; Schizophrenia*

To elucidate a possible prognostic factor, we studied 91 cases of breast carcinoma for the expression of n-tn23 protein using an immunohistochemical method, and compared these results with the known prognostic parameters of the breast carcinoma. The mn23 protein was intensely stained in the cytoplasm and/or the nucleus of carcinoma cells in 82 cases(90.1%). There were two patterns of cytoplasmic staining; heterogeneous pattern and homogeneous pattern. Among the positive cases, 43 cases(47.2%) were heterogeneous while 39 cases(42.8%) were homogeneous. Axillary lymph node metastases(p<0.005) was found more frequently in the heterogeneous pattern group(79.0%) than in the homogeneous pattern group(41.0%). There was no significant correlation between nm23 protein expression and other parameters such as patient age, tumor size, estrogen receptor, histopathologic grade, and p53 overexpression. Although axillary lymph node metastasis was correlated with the disease free status(p<0.0005) and patient survival (p<0.05), they showed no correlation with nin23 expression. Multivariate analysis showed that axillary lymph node metastasis was the only prognostic indicator(p<0.05), and the expression of nm23 protein was of borderline significance. The results suggest that the homogeneous and/or granular cytoplasmic expression of mn23 protein plays a role in the suppression of nodal metastasis in breast carcinoma and might contribute in predicting patient survival.
Neoplasm Metastasis