No abstract available.
Emergencies* ; Emergency Medicine* ; Humans

Cholesteatoma of the upper urinary tract is a rare nonmalignant condition histologically characterized by keratinizing desquamative squamous metaplasia (KDSM). Until now about 80 cases including one case from Korea have been reported. Cholesteatoma shows microscopic features of squamous metaplasia of the transitional epithelium and keratinization. These changes with subsequent desquamation of the superficial epithelial layers explain clinical manifestations of the disease. Flank pain, passage of cornified material in the urine and a filling defect on the IVP constitute the characteristic triad. Most cases were managed by extensive ablative surgery for fear of malignant potential. We report a case of renal cholesteatoma which was misdiagnosed as renal stone in 58 year-old female patient who had been suffered from intermittent left flank pain.
Cholesteatoma* ; Epithelium ; Female ; Flank Pain ; Humans ; Korea ; Metaplasia ; Middle Aged ; Urinary Tract

Purpose: This study aimed to establish the role of and to analyze the job of nurses in a regional emergency center using the Developing a Curriculum(DACUM) process, a job analysis technique. Methods: The DACUM committee was organized, and three workshops were held from June 1st to July 4th, 2016. One hundred two nurses in a regional emergency center participated in a survey from October 3rd to 10th, 2016. The frequency, importance and difficulty of each tasks and task elements in the DACUM were investigated on a Likert scale. Results: The roles of nurses in a regional emergency center were identified and the DACUM chart was developed with 6 duties, 29 tasks and 153 task elements. According to the survey, some tasks such as ‘CPR,’ ‘acute respiratory distress care,’ and ‘drug administration’ showed high frequency and importance or difficulty in all nursing units in common, and different results reflected the characteristics of each nursing unit were also found. Conclusion The results showed the feature of the regional emergency center. Based on these results, it is necessary to develop educational programs for practice.

The X-ray synchrotron is quite different from conventional radiation sources. This technique may expand the capabilities of conventional radiology and be applied in novel manners for special cases. To evaluate the usefulness of X-ray synchrotron radiation systems for real time observations, mouse fetal skeleton development was monitored with a high resolution X-ray synchrotron. A non-monochromatized X-ray synchrotron (white beam, 5C1 beamline) was employed to observe the skeleton of mice under anesthesia at embryonic day (E)12, E14, E15, and E18. At the same time, conventional radiography and mammography were used to compare with X-ray synchrotron. After synchrotron radiation, each mouse was sacrificed and stained with Alizarin red S and Alcian blue to observe bony structures. Synchrotron radiation enabled us to view the mouse fetal skeleton beginning at gestation. Synchrotron radiation systems facilitate real time observations of the fetal skeleton with greater accuracy and magnification compared to mammography and conventional radiography. Our results show that X-ray synchrotron systems can be used to observe the fine structures of internal organs at high magnification.
Animals ; Bone and Bones/*anatomy & histology/radiography ; Female ; Fetus/*anatomy & histology/radiography ; Histocytochemistry ; Mice ; Mice, Inbred ICR ; Pregnancy ; Synchrotrons ; X-Rays

PURPOSE: In this study, the retrospective radiographic study is executed to evaluate amount of bone loss of various conditions in patients using customized abutment for 4 years of follow-up. MATERIALS AND METHODS: The subjects of this study were implant fixed dental prosthesis using CAD/CAM customized abutments. CAD/CAM customized abutment and fixed dental prosthesis were manufactured by the Prosthodontics Department of Chosun University Dental Hospital from August 1, 2011 to July 31, 2012. Radiological assessments were performed on the patients who were treated by the fixed prosthodontics. After each treatment, a retrospective study was performed for a total of 4 years at 3 months, 6 months, 1 year, 2 years, 3 years, and 4 years. RESULTS: As a result of the study, the customized abutment using CAD/CAM showed less bone loss than the results of existing research. There was no statistically significant differences at alveolar bone loss between splinting group and non-splinting group (respectively 0.27 mm, 0.5 mm). Also, there were statistically significant differences at alveolar bone loss in mx. anterior, mx. posterior, mn. anterior and mn. posterior part (respectively 1.37 mm, 0.39 mm, 0.00 mm, 0.30 mm). CONCLUSION: The customized abutment using CAD/CAM showed less bone loss than the results of existing research, there were statistically significant differences at alveolar bone loss in implant positions.
Alveolar Bone Loss ; Dental Prosthesis ; Follow-Up Studies ; Humans ; Prosthodontics ; Retrospective Studies ; Splints

PURPOSE: Based on the vascular theory of glaucoma pathogenesis, we wanted to evaluate the effect of Ginkgo biloba extract (GBE) on peripapillary blood flow in patients with normal tension glaucoma (NTG). METHODS: Thirty patients with NTG were randomly placed in the GBE-treated or control groups. The GBE-treated group received 80 mg GBE orally, twice a day for four weeks, and the control group received a placebo twice a day for four weeks. Complete ocular examinations including visual field, Heidelberg retina flowmeter, and systemic examinations were performed on the first study day and on the day treatment was completed. RESULTS: After GBE treatment, the mean blood flow, volume, and velocity increased at almost all points, and there was a statistically significant increase in blood flow at almost all points, in comparison to the placebo. Blood volume significantly increased only in the superior nasal and superior temporal neuroretinal rim areas. GBE also significantly increased blood velocity in areas of the inferior temporal neuroretinal rim and superior temporal peripapillary area. CONCLUSIONS: GBE administration appears to have desirable effect on ocular blood flow in NTG patients.
Aged ; Double-Blind Method ; Female ; *Ginkgo biloba ; Humans ; Laser-Doppler Flowmetry ; Low Tension Glaucoma/*drug therapy/physiopathology ; Male ; Optic Disk/blood supply ; Phytotherapy/*methods ; Plant Extracts/*therapeutic use ; Regional Blood Flow/*drug effects ; Retina/*physiopathology ; Retrospective Studies ; Time Factors ; Visual Fields

PURPOSE: Based on the vascular theory of glaucoma pathogenesis, we wanted to evaluate the effect of Ginkgo biloba extract (GBE) on peripapillary blood flow in patients with normal tension glaucoma (NTG). METHODS: Thirty patients with NTG were randomly placed in the GBE-treated or control groups. The GBE-treated group received 80 mg GBE orally, twice a day for four weeks, and the control group received a placebo twice a day for four weeks. Complete ocular examinations including visual field, Heidelberg retina flowmeter, and systemic examinations were performed on the first study day and on the day treatment was completed. RESULTS: After GBE treatment, the mean blood flow, volume, and velocity increased at almost all points, and there was a statistically significant increase in blood flow at almost all points, in comparison to the placebo. Blood volume significantly increased only in the superior nasal and superior temporal neuroretinal rim areas. GBE also significantly increased blood velocity in areas of the inferior temporal neuroretinal rim and superior temporal peripapillary area. CONCLUSIONS: GBE administration appears to have desirable effect on ocular blood flow in NTG patients.
Aged ; Double-Blind Method ; Female ; *Ginkgo biloba ; Humans ; Laser-Doppler Flowmetry ; Low Tension Glaucoma/*drug therapy/physiopathology ; Male ; Optic Disk/blood supply ; Phytotherapy/*methods ; Plant Extracts/*therapeutic use ; Regional Blood Flow/*drug effects ; Retina/*physiopathology ; Retrospective Studies ; Time Factors ; Visual Fields

The purpose of this study was to determine if contrast media would enhance visualization of the endocardium for assessment of left ventricle (LV) function. In addition, differences between pre- and post-contrast evaluation for the cardiac output measurements including the modified Simpson's method and automated contour tracking (ACT) method were examined. Ten clinically healthy adult beagle dogs (three males and seven females) between 2~3 years old and weighing 6.6~10.8 kg were used. Echocardiographic examinations were performed to compare pre- and postcontrast LV endocardium visualization using a segmental scoring method. Two different methods for measuring cardiac output were also compared. LV visualization was significantly enhanced in post-contrast echocardiography (p < 0.01). Significant differences between pre- and post-contrast measurements for the modified Simpson's method (p < 0.05) were also observed. No significant difference was found for the ACT method. Contrast echocardiography provides better LV chamber opacification and significantly improves wall segment visualization. Furthermore, contrast echocardiography for measuring cardiac output is helpful for the modified Simpson's method.
Adult ; Animals ; Cardiac Output* ; Contrast Media* ; Dogs ; Echocardiography* ; Endocardium ; Heart Ventricles ; Humans ; Male ; Research Design ; Ultrasonography*

We experienced a 4-month-old boy presenting with fever and painful scrotal swelling. Diagnostic work-up showed the presence of urinary tract infection and concurrent acute epididymitis. On the voiding cystourethrography, vesicoureteral reflux and urinary reflux through the ejaculatory duct and the seminal vesicle were detected without obvious urethral obstruction. In general, urinary reflux into the seminal vesicle can take place with obstructive lesions of the urethra and may cause epididymitis in infants. We report a case of urinary reflux without urethral obstruction with a brief review of related literatures.
Ejaculatory Ducts ; Epididymitis* ; Fever ; Humans ; Infant ; Male ; Seminal Vesicles* ; Urethra ; Urethral Obstruction ; Urinary Tract Infections ; Vesico-Ureteral Reflux

BACKGROUND/AIMS: This study was conducted in order to analyze the effects of sarcopenia on age-related osteoarthritis (OA) of the knee in a Korean population. METHODS: All the Korean subjects who visited the Yeungnam University Medical Center Health Promotion Center between 2008 and 2012 in order to undergo a routine medical examination were enrolled. A total of 5,723 young, healthy people (2,959 males, 2,764 females) enrolled as normal subjects and 23,473 subjects (13,006 males and 10,467 females) were included for evaluation of the effects of sarcopenia on OA. There were 266 subjects who followed-up bioelectrical impedance analysis at a 4-year interval. Of 327 subjects enrolled in this study, knees with anteroposterior X-rays were assessed according to the Kellgren-Lawrence (K/L) grade. RESULTS: Skeletal muscle mass index (SMI) and basal metabolic rate (BMR) showed a steady decrease with the advance of age (p < 0.01), but SMI showed strong positive correlation with BMR (r = 0.72, β = 30.96, p < 0.01). During the 4-year interval, BMR showed a significant decrease with aging (p < 0.01), consistently with the decrease of SMI. Knees with normal SMI were prone to be designated as K/L grade 0 or 1; however, subjects with sarcopenia showed a trend toward the higher K/L grade, classified as knee radiological osteoarthritis (ROA) (p < 0.01). CONCLUSIONS: The results of this study may indicate that sarcopenia as age-related loss of skeletal muscle mass is interactively correlated with the presence and severity of age-related OA.
Academic Medical Centers ; Aging ; Basal Metabolism ; Body Composition ; Electric Impedance ; Health Promotion ; Humans ; Knee ; Male ; Muscle, Skeletal* ; Osteoarthritis* ; Sarcopenia