PURPOSE: The purpose of this study was to examine the validity of student ratings of instruction by analyzing their relationships with several variables, including gender, academic rank, specialty, teaching time, and teaching method, at a medical school. METHODS: This study analyzed the student ratings of 297 courses at Ajou University School of Medicine in 2013. SPSS version 12.0 was used to analyze the data and statistics by t-test, analysis of variance, and Scheffe test. RESULTS: There were no statistically significant differences in student ratings between gender, rank, and specialty. However, student ratings were significantly influenced by teaching times and methods (p<0.05). Student ratings were high for teaching times of 10 hours or more and small-group learning, compared with lectures. There was relatively mean differences in students ratings by teaching times, specialty and rank, although the difference in ratings was not statistically significant. CONCLUSION: Student ratings can be classified by teaching time and method for summative purposes. To apply student ratings to the evaluation of the performance of faculty, further studies are needed to analyze the variables that influence student ratings.
*Attitude ; *Curriculum ; *Education, Medical, Undergraduate ; Faculty/standards ; Female ; Humans ; *Learning ; Male ; *Schools, Medical ; *Students, Medical ; Surveys and Questionnaires ; Teaching/*standards

The purpose of this study was to investigate the effect of bone mineral density on life styles, dietary habits and nutrient intakes among the male college students. The subjects were divided into four groups; Q1 (calcaneus BMD < 25 percentile, n = 117), Q2 (25 percentile < or = calcaneus BMD < 50 percentile, n = 118), Q3 (50 percentile < or = calcaneus BMD < 75 percentile, n = 118), Q4 (calcaneus BMD > or = 75 percentile, n = 116). And they were asked about general characteristics, life style, dietary habit, and nutrient intake using questionnaire and 24-hr recall method. They were measured the bone mineral density of calcaneus using quantitative ultrasound. The average age of the subjects of the study was 23.0 years and the average height, weight, and BMI were 174.7 cm, 69.0 kg, 22.5 kg/m2. The bone mineral density in calcaneus was 0.43 g/cm2 in Q1, 0.50 g/cm2 in Q2, 0.56 g/cm2 in Q3, and 0.69 g/cm2 in Q4 (p < 0.001). The results showed that Q1 tended to have irregular exercise compared to the other three groups. Compared with Q1 and Q2, the frequency of skipping breakfast was lower in Q3 and Q4. Also the results showed that the Q4 was significantly more often to drink coffee compared with the other three groups (p < 0.01). The mean daily energy intake was 2210.6 kcal (88.4% of RDA). The intake of energy, vitamin B2, calcium, and zinc did not meet the Korean RDA. Also the Q2 consumed significantly lower intakes of protein (p < 0.05) and plant protein (p < 0.05) compared to the Q3 and Q4. The Q1 and Q2 consumed significantly lower intakes of vitamin B2 (p < 0.01) compared to the Q3 and Q4. In conclusion, male student in lower bone mineral density appeared to have unhealthy life styles and dietary habits in terms of irregular exercise, high frequency of skipping breakfast and lower intakes of protein, vitamin B2 showing a strong need proper education on meal practices and exercise habits for the bone health.
Bone Density* ; Breakfast ; Calcaneus ; Calcium ; Coffee ; Education ; Energy Intake ; Food Habits* ; Humans ; Life Style* ; Male* ; Meals ; Plants ; Riboflavin ; Surveys and Questionnaires ; Ultrasonography ; Zinc

BACKGROUND: Outpatient surgery has recently grown at a substantial rate. The development and use of short acting anesthetic and analgesic agents have played a major role in the growth of outpatient surgery. This study was designed to evaluate the intraoperative hemodynamic responses and recovery characteristics, using propofol or isoflurane to maintain the anesthesia. METHODS: A total number of 30, ASA physical status I-II patients scheduled for outpatient surgery, all of whom were to undergo excision of breast mass. The patients were randomly allocated to receive either total intravenous anesthesia with propofol, or inhalation anesthesia with isoflurane after induction of anesthesia with propofol. All patients were ventilated via a laryngeal mask airway (LMA) using a mixture of oxygen and air so that the FiO2 would be 0.4. RESULTS: There were no significant differences in hemodynamic changes during anesthesia in recovery time, or in complications between the two groups. CONCLUSIONS: We conclude that both methods provide reasonably rapid and reliable recovery from anesthesia and are equally acceptable to the patients.
Ambulatory Surgical Procedures* ; Analgesics ; Anesthesia* ; Anesthesia, Inhalation ; Anesthesia, Intravenous ; Breast ; Hemodynamics ; Humans ; Isoflurane ; Laryngeal Masks ; Outpatients* ; Oxygen ; Propofol*

Hajdu-Cheney syndrome (HCS) is a rare skeletal dysplasia that is characterized by acroosteolysis of the distal phalanges, distinctive craniofacial and skull changes, dental abnormalities and generalized osteoporosis. The clinical and radiologic characteristics are variable and these characteristics progress with age. This syndrome shows autosomal dominant inheritance with sporadic cases. The genetic defects or molecular pathogenesis of HCS are still unknown. We experienced a case of Hajdu-Cheney syndrome in a 20-year-old man who had generalized osteoporosis with multiple non-traumatic spine compression fractures. He had acroosteolysis of the hands and feet, wormian bones in the skull, facial dysmorphism (mid-facial flattening, micrognathia and bushy eyebrows), a high arched palate, malocclusion and short dental alveolar processes. HCS was diagnosed based on the clinical and radiologic evidence. For the differential diagnosis, we excluded the other possible causes of the acroosteolysis and wormian bones, including hyperparathyroidism, osteogenesis imperfecta, hypophosphatemia and mandibuloacral dysplasia. The specific treatment of HCS is unknown, but case reports with bisphosphonate treatment have been reported.
Acro-Osteolysis ; Alveolar Process ; Diagnosis, Differential ; Foot ; Fractures, Compression ; Hajdu-Cheney Syndrome ; Hand ; Humans ; Hyperparathyroidism ; Hypophosphatemia ; Malocclusion ; Osteogenesis Imperfecta ; Osteoporosis ; Palate ; Skull ; Spine ; Wills ; Young Adult

OBJECTIVES: This study is conducted to investigate the prevalence of work-related back pain among Driving and Transport Related Occupations and to identify the risk of mechanical factors and psychosocial factors. METHODS: Subjects were 779 operators and drivers of transportation vehicles selected from respondents from the 1st Korean Working condition survey. The occupation risk factors, including socioeconomic, ergonomic, psychosocial factors, were investigated. We used the multiple logistic regression analysis to determine the relationship between risk factors and low back pain. RESULTS: The prevalence of self-reported work-related low back pain was 27.7%. Adjusting for confounding factors, we determined that whole body vibration(OR 1.64 95% CI: 1.09~2.48), tiring posture(OR 5.18, 95% CI: 3.01~8.93), extended work(OR 1.91, 95% CI: 1.20~3.04), night-time work(OR 2.79, 95% CI: 1.86~4.19), evening work(OR 2.82, 95% CI: 1.78~4.46), shift work(OR 2.35, 95% CI: 1.30~4.26), job dissatisfaction (OR 2.65, 95% CI: 1.76~3.99), and experiencing physical violence at work(OR 5.31, 95% CI: 1.25~22.67) had meaningful relationships with low back pain. CONCLUSIONS: We found that the psychosocial risk factors were the most significant factors among drivers of transportation vehicles in Korea. Therefore, we suggest a health promotion program to relieve Job stress as a solution to prevent and control low back pain among drivers of transportation vehicles in Korea.
Back Pain ; Data Collection ; Health Promotion ; Korea ; Logistic Models ; Low Back Pain ; Occupations ; Prevalence ; Risk Factors ; Transportation ; Violence

We report our first experience with the use of contrast-enhanced ultrasonography (CEUS) to differentiate between a complicated hemorrhagic renal cyst and a cystic renal cell carcinoma in a 50-year-old man diagnosed with autosomal dominant polycystic kidney disease undergoing hemodialysis for end-stage renal disease. CEUS could successfully differentiate between a complicated hemorrhagic renal cyst and a cystic renal cell carcinoma, as opposed to computed tomography (CT) or magnetic resonance imaging (MRI), which could not distinguish between the 2 disease conditions. CEUS is comparable diagnostic tool as CT or MRI to distinguish between benign and malignant cystic renal masses.
Carcinoma, Renal Cell ; Humans ; Kidney Failure, Chronic ; Magnetic Resonance Imaging ; Middle Aged ; Polycystic Kidney, Autosomal Dominant ; Renal Dialysis ; Ultrasonography

Bleeding from ileal conduit stomal varices is a rare complication. The standard treatment for the management of stomal varices has not been established yet. We present the case of a 65-yearold man with recurrent fatal bleeding from his ileal conduit stomal varices who was successfully treated with ligation of the engorged venous varices using hemostatic agents.

Bleeding from ileal conduit stomal varices is a rare complication. The standard treatment for the management of stomal varices has not been established yet. We present the case of a 65-yearold man with recurrent fatal bleeding from his ileal conduit stomal varices who was successfully treated with ligation of the engorged venous varices using hemostatic agents.

No abstract available.
Postpartum Period* ; Postpartum Thyroiditis*

BACKGROUND: Remnant lipoproteins are the lipolytic degradation product of the triglyceride-rich lipoproteins produced by the liver (very-low-density lipoprotein cholesterol) and intestine (chylomicrons). Recent studies have demonstrated a correlation between remnant lipoproteins and cardiovascular risk. Our study assessed the relationship between obesity and remnant lipoproteins and evaluated the factors related to remnant lipoprotein in children and adolescents. METHODS: Body mass index (BMI), waist circumference, systolic and diastolic blood pressures, body fat mass, total abdominal fat, visceral and subcutaneous fat areas, total cholesterol, triglyceride (TG), LDL cholesterol (LDL-C), HDL cholesterol (HDL-C) and remnant lipoprotein cholesterol (RLP-C) were measured in 135 children and adolescents (67 boys and 68 girls). Plasma RLP fractions were isolated using an immunoaffinity gel containing specific anti-apoB-100 and anti-apoA-I antibodies. The subjects were divided into three groups: the low (< 50 percentile), mid (50~84 percentile), and high (> or = 85 percentile) BMI groups. RESULTS: RLP-C was significantly correlated with age, sex, BMI, waist circumference, systolic and diastolic blood pressures, visceral and subcutaneous fat areas, visceral fat area to subcutaneous fat area ratio (VSR), total cholesterol, TG, HDL-C, apoB, and HOMA-IR. From a multivariate regression analysis, TG (beta = 0.928, P < 0.001) was found to be independently correlated with RLP-C. After excluding TG as an independent variable, a multivariate regression analysis revealed that the HOMA-IR (beta=0.231, P=0.007) and systolic blood pressure (beta=0.169, P=0.046) were independently associated with RLP-C. CONCLUSION: RLP-C was significantly higher in obese children and adolescents. TG, systolic blood pressure, and insulin resistance were related to remnant lipoproteins.
Abdominal Fat ; Adipose Tissue ; Adolescent* ; Antibodies ; Apolipoproteins B ; Blood Pressure ; Body Mass Index ; Child ; Cholesterol ; Cholesterol, HDL ; Cholesterol, LDL ; Dyslipidemias ; Humans ; Insulin Resistance ; Intestines ; Intra-Abdominal Fat ; Lipoproteins* ; Liver ; Obesity ; Pediatric Obesity* ; Plasma ; Subcutaneous Fat ; Triglycerides ; Waist Circumference