BACKGROUND: Nowadays, decreased physical activity is considered to be a contributor to increase the prevalence of many diseases such as obesity, coronary heart disease and so on. Many researches demonstrated that regular physical activity reduce all cause mortality. To increase the physical activities of the population, accurate estimation of the activities is needed. Actical and actigraph are confirmed as accurate tools to measure physical activities. But the target populations of the validity studies were not Asian people. Therefore, the accuracy of the accelerometers should be confirmed in Asian people. The accuracy of the tools could be different. Therefore head to head comparison study between the tools would be needed. METHODS: Thirty volunteers from the community, ages over 20 yrs, were recruited. The participants put on the two accelerometers (Actical, Actigraph) on the waists, secured with elastic belts, and performed a session of rest and three structured activities (two walking speeds, 4 km/hr and 6 km/hr, and one jogging speed, 8 km/hr). During each activity, expired respiratory gases were collected, and oxygen consumption (VO2) was measured by indirect calorimetry (Model Quark beta2(R)). The calories measured by gas analyzer and two accelerometers were compared by correlation analysis using SPSS program. RESULTS: Pearson correlation coefficient between gas analyzer and two accelerometers was calculated at three structured activities. The r in Actical was 0.747, 0.785, and 0.677, at speed of 4, 6, 8 km/hr, respectively (P<0.05), and the same measures in Actigraph was 0.617, 0.737, and 0.530 (P<0.05), respectively. Pearson correlation coefficient was also calculated between the two accelerometers, and the r was 0.881, 0.927, and 0.824, at each speed. CONCLUSION: The Actical and Actigraph are valid tools for measuring physical activities in Korean people.
Asian Continental Ancestry Group ; Calorimetry, Indirect ; Coronary Disease ; Gases ; Head ; Health Services Needs and Demand ; Humans ; Jogging ; Motor Activity ; Obesity ; Oxygen Consumption ; Prevalence ; Walking

STATEMENT OF PROBLEM: Proper finishing and polishing enhance both the esthetics and the longevity of restored teeth. Blade finishing technique would be suited for smoothing and finishing. Evaluation of this technique are necessary. PURPOSE: The purpose of this study was to evaluate the blade finishing and polishing procedures on the surface profile and roughness of ormocer-based composite resin and nanohybrid composite resin. MATERIAL AND METHODS: The material included a ormocer-based composite resin (Admira(R) & Admira(R) Flow); a nanohybrid composite resin (Grandio(R) & Grandio(R) Flow). One hundred forty specimens of each group were prepared using a mylar strip and randomly divied into blade finishing and rubber polishing groups (n=10). The average surface roughness (Ra) in micrometers was measured and the surface profile was examined by scanning electron microscopy (SEM) (Magnification X 200). The data were analyzed by Mann-Whitney Test at 0.05 significance level. CONCLUSION: The results of this study indicated that the mylar strip produced the smoothest surface on all materials and among the finishing-polishing methods was not significanct difference (P>0.05). Ormocer-based flowable composite resin performedthe lowest variability in initial surface roughness among the tested materials.
Composite Resins ; Esthetics ; Longevity ; Microscopy, Electron, Scanning ; Polyethylene Terephthalates ; Rubber ; Tooth

PURPOSE: The objective of this study is to observe high-resolution computed tomography (HRCT) findings of lung parenchyme in very low birth weight (VLBW) infants between the corrected age of 38-42 weeks who were treated with oxygen after birth, and to compare them to the clinical severity of bronchopulmonary dysplasia (BPD). METHODS: The lungs of fourty-four VLBW infants with gestational ages of less than 32 weeks and birth weights of less than 1,500 g who were treated with oxygen after birth were examined using HRCT taken when the corrected age was between 38-42 weeks. Common findings among the infants and the frequency of their occurrences were noted. Total CT scores obtained by the summation of air trapping and actelectasis scores and the ratio of bronchus-to-pulmonary artery diameter were used to quantitatively evaluate HRCT findings and correlate them with the clinical severity of BPD as defined by Jobe-Bancalari diagnostic criteria. RESULTS: 1) The most common findings in HRCT images of the lungs were air trapping (56%), atelectasis (70.5%), linear opacity (77%), and distortion of the bronchopulmonary bundle (65.9%). These findings were more commonly observed in infants with BPD in a mixed pattern than those without (P<0.05). However, abnormal findings were also found in HRCT images of some infants without BPD. In infants with BPD, air trapping, atelectasis and total CT scores were higher than those without BPD. Also infants with BPD had a lower bronchus-to-pulmonary artery diameter than those without BPD (P<0.05). 2) The total CT scores (r=0.799, P<0.0001) and the ratio of bronchus- to-pulmonary artery diameter (r=0.576, P<0.0001) showed a linear correlation with the clinical severity of BPD. CONCLUSION: HRCT findings in VLBW infants between the corrected age of 38-42 weeks who had been treated with oxygen after birth are useful in revealing pathologic changes in the lung parenchyme and show a good correlation with the clinical severity of BPD.
Arteries ; Birth Weight ; Bronchopulmonary Dysplasia ; Gestational Age ; Humans ; Infant* ; Infant, Newborn ; Infant, Very Low Birth Weight* ; Lung* ; Oxygen Inhalation Therapy ; Oxygen* ; Parturition ; Pulmonary Atelectasis

There are many kinds of treatments for hepatocellular carcinoma (HCC) such as surgical resection, liver transplantation, chemotherapy, interventional therapy [TACE, ethanol embolization, Immuno -chemoembolization, I131 -lipiodol embolization], thermal therapy, cryotherapy, and radiation therapy. Generally spontaneous remission is not common in HCC, however underlying mechanism of spontaneous remission is uncertain. We report a case of complete remission after one time TACE in ruptured HCC with review of literature about the effect of TACE and spontaneous remission. We conclude that arterial embolization is an effective alternative to surgery for hepatic hemostasis in patients with spontaneous rupture of hepatocellular carcinoma.
Carcinoma, Hepatocellular* ; Cryotherapy ; Drug Therapy ; Ethanol ; Hemostasis ; Humans ; Liver Transplantation ; Remission, Spontaneous ; Rupture, Spontaneous

BACKGROUND: Aplastic anemia is an uncommon disease characterized by marrow hypocellularity, resulting in a reduction of the counts of circulating red blood cells, neutrophils, and platelets. The etiology of aplastic anemia remains unknown in the majority of cases. An association of aplastic anemia with pregnancy has been reported but the strength of such a relationship remains somewhat controversial. OBJECTIVE: To evaluate the association of aplastic anemia with pregnancy and the optimal management of patients with aplastic anemia during pregnancy. METHODS: This retrospective study was done by review of medical records of 18 patients with aplastic anemia, of whom 8 patients were diagnosed before pregnancy and 10 patients were diagnosed during pregnancy, who had a total of 25 pregnancies after the diagnosis from January, 1990 to October, 1997 at the Seoul National University Hospital, RESULTS: The incidence of aplastic anemia during pregnancy was one in 806 persons(18/14, 507) in this study. During pregnancy, the circulating blood cell levels decreased in all pregnancies. In all 7 cases that showed a relapse during pregnancy the remission occurred following the termination of pregnancy. 12 patients presenting with severe aplastic anemia during pregnancy had poorer hematological improvement than patients with mild aplastic anemia after termination of pregnancy. CONCLUSION: In all patients with aplastic anemia during pregnancy the circulating blood cell levels decreased. The successful outcome in these cases illustrates the benefit of modern supportive care in the management of such patients. The present observations suggest that a pregnancy which occurs during the long-term remission of aplastic anemia may be allowed to progress to birth.
Anemia* ; Anemia, Aplastic ; Blood Cells ; Bone Marrow ; Diagnosis ; Erythrocytes ; Female ; Humans ; Incidence ; Medical Records ; Neutrophils ; Parturition ; Pregnancy ; Pregnant Women* ; Recurrence ; Retrospective Studies ; Seoul

STATEMENT OF PROBLEM: Over the past decade, increased demand for esthetically pleasing restorations has led to the development of all-ceramic systems. Recent reports suggest that the all-ceramic crowns have excellent physical properties, wear resistance, and color stability. In addition, numerous ceramics have excellent biocompatibility, a natural appearance, and improved physical bonding with resin composite luting agents. However, the brittle nature of ceramics has been a major factor in their restriction for universal usage. Functional occlusal loading can generate stress in the luting agent, and the stress distribution may be affected by the marginal geometry at the finish line. Tooth preparation for fixed prosthodontics requires a decision regarding the marginal configuration. The design dictates the shape and bulk of the all ceramic crowns and influences the fit at the margin. PURPOSE: The purpose of this study was to evaluate the stress distribution within marginal configurations of all- ceramic crowns (90-degree shoulder, 110-degree shoulder, 135-degree shoulder). MATERIAL AND METHODS: The force is applied from a direction of 45 degrees to the vertical tooth axis. Three-dimensional finite element analysis was selected to determine stress levels and distributions. RESULTS AND CONCLUSION: The result of stress level for the shoulder marginal configuration was more effective on stress distribution at 135-degree shoulder margin. But the stresses concentrated around at 135-degree shoulder margin. The stress decreased apically at the surface between cements and alumina core, and increased apically at the surface between alumina core and veneering porcelain.
Aluminum Oxide ; Axis, Cervical Vertebra ; Ceramics ; Collodion ; Crowns ; Dental Cements ; Dental Porcelain ; Finite Element Analysis ; Prosthodontics ; Shoulder ; Tooth ; Tooth Preparation

No abstract available.
Humans

Emphysematous pyelonephritis is an uncommon and, but life-threatening necrotizing inflammation of renal parenchyme and perinephric tissue by gas-forming organisms. This disease is encountered mainly in patients with uncontrolled diabetes mellitus and/or urinary tract obstruction etc. Clinically, it appears as an acute severe clinical pyelonephritis that needs emergency care with poor prognosis. Though the pathogenesis of this disease is still pooly understood, radiographic demonstration of gas shadow in renal parenchyme and peri- nephritic tissue establishes the diagnosis of emphysematous pyelonephritis. The identification of this finding has been believed to consider incision and drainage or nephrectomy in addition to medical treatment, because of high mortality rate of this disease in spite of vigorous medical management. We herein present 1 diabetic patient with emphysematous pyelonephritis who responded to medical treatment alone. The patient was treated with antibiotics alone, the clinical signs and laboratory findings were improved, CT scan 1 month after medical treatment revealed absence of gas in the renal pelvis.
Anti-Bacterial Agents ; Diabetes Mellitus ; Diagnosis ; Drainage ; Emergency Medical Services ; Humans ; Inflammation ; Kidney Pelvis* ; Mortality ; Nephrectomy ; Prognosis ; Pyelonephritis* ; Tomography, X-Ray Computed ; Urinary Tract

A glomus tumor of the stomach is a rare submucosal lesion that was first described by De Busscher in 1948. Submucosal tumors of the stomach are mostly leiomyoma, leiomyosarcoma, and malignant lymphoma. It is difficult to diagnose this kind of tumor preoperatively. We present a patient with a gastric glomus tumor which showed the characteristic endoscopic ultrasonographic (EUS) finding. Our case was also diagnosed by pathology after surgery. The major EUS findings in the present case are circumscribed low echoic mass in the forth submucosal layer and an internal heterogenous echo mixed with high echoic spots. The EUS seems to be useful in distinguishing between glomus tumor and other submucosal tumors.
Endosonography* ; Glomus Tumor* ; Humans ; Leiomyoma ; Leiomyosarcoma ; Lymphoma ; Pathology ; Stomach*

An adenosquamous carcinoma of the penis is an exceedingly rare, highly malignant tumor, with histological features of a squamous cell carcinoma and an adenocarcinoma, which originates in the penile surface epithelium, and possibly in embryologically misplaced mucus glands of the perimeatal region of the glans mucosa. We report a case of an adenosquamous carcinoma of the penis in a 73-year-old man who had been suffering from a painful ulcerative mass on his penis for 2 years.
Adenocarcinoma ; Aged ; Carcinoma, Adenosquamous* ; Carcinoma, Squamous Cell ; Epithelium ; Humans ; Male ; Mucous Membrane ; Mucus ; Penis* ; Ulcer