1.A COMPARISON OF MIDAZOLAM AND DIAZEPAM AS SEDATIVES FOR AMBULATORY PLASTIC SURGERY PATIENTS.
Yong Chan CHUN ; Hyun Cheol PARK ; Sung Ho CHOI
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(6):1274-1282
No abstract available.
Diazepam*
;
Humans
;
Hypnotics and Sedatives*
;
Midazolam*
;
Surgery, Plastic*
2.Relationship between the Measurement Values of the Digitial Dust Indicator and Personal Dust Sampler.
Young No YOON ; Jeong Joo LEE ; Ho Keun CHUNG ; Ho Chun CHOI
Korean Journal of Preventive Medicine 1987;20(2):255-260
The digital dust indicator (Sibata P-5), one of the direct-reading instruments was evaluated for the respirable dust in the underground coal mine environments. As a reference, respirable dust was determined using three cyclones and/or impactors. All the tests were performed on aerosol in twenty underground coal mines. The coefficients of mass-relative concentration were 0.067+/-0.054 (Mean+/-Standard deviation) (range: 0.006-0.172). The relationship between relative concentration and temperature was not significant statistically. Also, the relationship of relative concentration and relative humidity was not significant. Mass concentration and relative concentration were 5.31+/-5.22 mg/m3 and 162+/-163 CPM (Mean+/-Standard deviation) respectively. The range of mass concentration was 1.22-22.69 mg/m3; relative concentration 16-628 CPM. The relationship of mass concentration and relative concentration was not significant in these ranges.
Coal
;
Cyclonic Storms
;
Dust*
;
Humans
;
Humidity
3.Patient Falls in Stroke Rehabilitation.
Chang Sik CHUN ; Kyoung Hyo CHOI ; Min Ho CHUN
Journal of the Korean Academy of Rehabilitation Medicine 1999;23(5):905-912
OBJECTIVE: The present study was prospectively designed to identify the incidence, risk factors and characteristics of falls in a patient with stroke. METHOD: One hundred and three stroke patients admitted to the department of rehabilitation medicine between March 1, 1998 and June 30, 1998, were evaluated. RESULTS: Fifteen (14.6%) have falled at least one time, and most of the falls occurred in their own room while walking. Risks for falls were associated with multiple brain lesion involving both anterior and posterior circulation, the presence of the cognitive function disturbance, and presence of caregiver hired by the patient. Fifteen (78.9%) of total 19 incidents did not cause any problem, but 4 falls (21.1%) caused mild injury - pain, and simple contusion. Severe injury such as fracture or intracerebral hemorrhage were not caused by these falls. CONCLUSION: The incidence of fall in a patient with stroke was 14.6%. And risks for falls were associated with multiple brain lesion, the presence of the cognitive function disturbance, and presence of caregiver hired by the patient.
Brain
;
Caregivers
;
Cerebral Hemorrhage
;
Contusions
;
Humans
;
Incidence
;
Prospective Studies
;
Rehabilitation*
;
Risk Factors
;
Stroke*
;
Walking
4.Falls in a Rehabilitation Hospital.
Chang Sik CHUN ; Kyoung Hyo CHOI ; Min Ho CHUN
Journal of the Korean Academy of Rehabilitation Medicine 1999;23(3):643-649
OBJECTIVE: The present study was prospectively designed to identify the incidence, risk factors and characteristics of falls in a rehabilitation hospital. METHOD: Two hundred nine consecutive admissions to the department of rehabilitation medicine between March 1, 1998 and June 30, 1998, were evaluated. RESULTS: Twenty four (11.5%) experienced at least one fall, and most of the falls occurred in their own room during walking. Risks for falls were associated with the presence of the sensory or cognitive function disturbance, the ability of walking, the use of antihypertensive drug, and presence of caregiver hired by the patient. No injury was observed in 25 (76%) of total 33 incidents, and 8 falls (24%) caused mild injury - pain, and simple contusion. There was no fracture or intracerebral hemorrhage. CONCLUSION: These data suggest that high risk groups of patients who are prone to the falls within the rehabilitation setting can be identified for the prevention, and afterward for preventive measures.
Caregivers
;
Cerebral Hemorrhage
;
Contusions
;
Epidemiology
;
Humans
;
Incidence
;
Prospective Studies
;
Rehabilitation*
;
Risk Factors
;
Walking
5.Clinical Characteristics of Influenza B Virus in Children and the Efficacy of Oseltamivir: Data from Two University Hospitals.
Song Ee YOUN ; Ji Hye CHUN ; Kyung Suk LEE ; Yeong Ho RHA ; Sun Hee CHOI
Korean Journal of Pediatric Infectious Diseases 2014;21(3):199-206
PURPOSE: There has been little research regarding the effectiveness of oseltamivir for influenza B infections. We sought to identify the different clinical manifestations between patients treated with and without oseltamivir. METHODS: We retrospectively studied the medical records of 72 inpatients or outpatients from two medical centers diagnosed with influenza B infections by either a rapid antigen test or multiplex reverse transcriptase PCR between January 2012 and July 2012. We compared gender, age, past medical history, admission period, total fever duration, fever duration after hospitalization, post-oseltamivir medication peak temperature, laboratory test, chest X-ray, antibiotic medication, and the presence of concomitant viral or bacterial infections. RESULTS: The number of subjects in our study was 72 who were diagnosed with influenza B pneumonia, acute bronchitis, acute bronchiolitis, croup, and mean age was 3.6+/-2.8 year old. The demographic characteristics and clinical manifestations of oseltamivir and the non-oseltamivir groups, including hospitalization period (4.18+/-2.10 vs 4.79+/-1.49 days, P=.17) and total fever duration (5.32+/-2.07 vs 6.41+/-3.25 days, P=.09), demonstrated no significant differences. Notably, the oseltamivir group did have significantly reduced usage of antibiotic treatment than the non-oseltamivir group (P=.04). When we limited our patient group to patients under the age of three, similar results were seen. The group prescribed oseltamivir within 48 hours of fever onset had less antibiotic usage, in addition to a shorter fever duration. CONCLUSION: Oseltamivir appeared to have no benefit in improving the clinical course. However, if it is prescribed within the first 48 hours of symptoms, it may be more effective.
Bacterial Infections
;
Bronchiolitis
;
Bronchitis
;
Child*
;
Croup
;
Fever
;
Hospitalization
;
Hospitals, University*
;
Humans
;
Influenza B virus*
;
Influenza, Human
;
Inpatients
;
Medical Records
;
Oseltamivir*
;
Outpatients
;
Pneumonia
;
Retrospective Studies
;
Reverse Transcriptase Polymerase Chain Reaction
;
Thorax
6.Clinical application of transluminal balloon dilatation of ureteral stricture.
Seuk Hyoung CHOI ; Young Ho PARK
Korean Journal of Urology 1992;33(1):136-139
Ureteral stricture is a problem that always has confronted urology. The development of balloon dilatation has introduced new modalities for the management of ureteral stricture disease. We experienced the ten patients of the ureteral stricture from July 1988 to April 1990. The following results were obtained. 1. Transluminal balloon dilatation is simple, safe technique for ureteral stricture. 2. After dilatation. most cases of stricture were improved on urography immediately. but follow up results were not so much improved. 3. Success rate of ureteral balloon dilatation was low (40% ). Therefore, we felt that secondary therapy modalities should be considered if first attempt was failed.
Constriction, Pathologic*
;
Dilatation*
;
Follow-Up Studies
;
Humans
;
Ureter*
;
Urography
;
Urology
7.Endocrinologic evaluation of male hypogonadism: Kallmann's syndrome.
Ho Cheol CHOI ; In Kyu LEE ; Chun Il KIM
Korean Journal of Urology 1991;32(2):311-318
A clinical investigation and hormonal study was on 36 patients of male hypogonadism who visited the Department of Urology, Dong San hospital, Keimyung university, School of Medicine from March, 1986 to August, 1990, retrospectively. The results were as follows; 1. The cause of primary hypogonadism was Klinefelter's syndrome in all 27 cases. In patients with secondary hypogonadism, there were 7 cases of Kallmann's syndrome, a case of delayed puberty and a case of pituitary tumor. 2. The major physical feature was delay in sexual maturation. In addition, anosmia was found in 4. cases, gynecomastia in 3 cases, family history in 2 cases, cryptorchidism in 2 cases, color blindness in 1 case, obesity in 1 case and associated renal agenesis in 1 case. 3. In hormonal study of primary hypogonadism patients, serum LH was 30.8 mIU/ml, serum FSH 40.3 mIU/ml and serum testosterone 3.9 ng/ml. The results of hormonal study in secondary hypogonadism were serum LH 1.4 mIU/ml, serum FSH 1.9 mIU/ml, serum testosterone 0.3ng/ ml and serum prolactin 4.2 mIU/ml. 4. LHRH stimulation test was performed in secondary hypogonadism to differentiate hypothalamic and pituitary lesion. In 4 cases of Kallmann's syndrome and a case of delayed puberty, 597.6+/-191.4% increase in circulating LH and 365.0+/-218.8% increase in circulating FSH were seen. In 3 cases of Kallmann's syndrome, 200% increase in circulating LH and 153% in crease in circulating FSH were found. A case of pituitary tumor shows 163% increase in circulating LH and 325% in circulating FSH. 5. The treatments of patients with secondary hypogonadism were composed of HCG and HMG administration. Dosage of HCG was 3000 IU, two times a week and HMG administration was combined to restore fertility. 6. To differentiate the hypothalamic from pituitary lesion, a single LHRH test was not always possible, because the limited or absent response to LHRH might indicate either pituitary lesion or pituitary hyporeponsiveness due to chronic deprivation of endogenous LHRH. In this respect, a prolonged LHRH stimulation test and triple stimulation test may help to differentiate hypothalamic from pituitary lesions.
Color Vision Defects
;
Cryptorchidism
;
Fertility
;
Gonadotropin-Releasing Hormone
;
Gynecomastia
;
Humans
;
Hypogonadism*
;
Kallmann Syndrome*
;
Klinefelter Syndrome
;
Male*
;
Obesity
;
Olfaction Disorders
;
Pituitary Neoplasms
;
Prolactin
;
Puberty, Delayed
;
Retrospective Studies
;
Sexual Maturation
;
Testosterone
;
Urology
8.Quantitative Analysis of Quartz, Mica, and Feldspar in Respirable Coalmine Dust in Taebaek Area by Fourier Transform Infrared Spectrophotometry.
Ho Chun CHOI ; Yong Hee CHEON ; Hae Jeong KIM ; Jeong Joo LEE
Korean Journal of Preventive Medicine 1988;21(2):271-283
A Fourier transform infrared spectrophotometric method was described for the determination of quartz, mica(sericite) and feldspar(potassium feldspar) in respirable dust in Taebaek area. The results were as follows; 1) The concentration of minerals were determined from the intensity of absorption peak of quartz at 799 cm-1, sericite at 539 cm-1, and potassium feldspar at 648 cm-1 respectively. 2) The precision(C. V. %) for the quartz determination was 7.70+/-2.68 % from 10 to 200 microgram of quartz. 3) The precision for the sericite determination was 16.34+/-6.82 % from 30 to 500 microgram of serictite. 4) The precision for the potassium feldspar determination was 5.28+/-1.74 % from 30 to 500 microgram of potassium feldspar. 5) The concentration of respirable dust in Taebaek area was 4.90+/-3.29 mg/m3(0.4-93.7%), percent quartz was 1.80+/-4.14% (0.01-20.56%), percent sericite was 11.37+/-6.43% (0.00-29.69%), percent potassium feldspar was 8.15 % (n=7, 3.41-19.70%). 6) The difference of respirable coal dust, quartz, and sericite concentration in drilling, coal cutting, hauling and separating was significant respectively (p<0.05).
Absorption
;
Coal
;
Dust*
;
Fourier Analysis*
;
Minerals
;
Potassium
;
Quartz*
;
Spectrophotometry, Infrared*
9.Effect of Panax Ginseng Extracts on the Experimentally Induced Comedones.
Sung Bin IM ; Eung Ho CHOI ; Dong Sik BANG ; Soo Il CHUN ; Jung Bock LEE
Korean Journal of Dermatology 1990;28(4):434-440
In this animal study, comedones were induced by topical application of oleic acid onto the rabbit ear canal and the histopathologic and ultrastructural changes in response to topical application of HO and hexane extracts of red ginseng, and saponin were measured. No microscopical difference was observed between treatment groups. Nucle ir remnants were observed in the horny cell layer as well as the thinning of the granular cell layer. Scattered and decreased keratohyaline granules were also noted. Six weeks after initiation of treatment, we observed the thinning of epidermis and veappearance of granular cell layer with normal keratohyaline granules. After treatment, scanning electron microscopy showed a decrease in the size of comedones, and loosened and desquamating horny cells in the comedones. From the above results, it could be concluded that Panax ginseng extracts might have effects on the keratinization process of the skin.
Animals
;
Ear Canal
;
Epidermis
;
Microscopy, Electron, Scanning
;
Oleic Acid
;
Panax*
;
Saponins
;
Skin
10.Quartz Concentration and Respirable Dust of Coal Mines in Taeback and Kangneung Areas.
Ho Chun CHOI ; Yong Hee CHEON ; Young No YOON ; Hae Jeong KIM
Korean Journal of Preventive Medicine 1987;20(2):261-269
In order to investigate working conditions of underground coal mines, this work was undertaken to evaluate the respirable dust and the concentration of quartz in Taeback and Kangneung areas. The concentration of quartz was determined by Fourier Transform Infrared Spectrophotometry. The results were as follows; 1) The concentration of respirable dust of drilling and coal face in Taeback and Kangneung areas were as followed. 2) Distribution of respirable dust was well fitted to the long-normal distribution and geometric mean value was log(-1) 0.37+/-log(-1) 0.47 (2.34+/-2.95) mg/m3. 3) The difference of respirable dust concentrations in Taeback and Kangneung areas was not significant statistically (p>0.05). 4) The concentration of quartz of drilling and coal face in Taeback and Kangneung areas were as followed. 5) Distribution of quartz concentrations was well fitted to the log-normal distribution and geometric mean value was log(-1) 0.33+/-log(-1) 0.45 (2.14+/-2.82)%. 6) The difference of quartz concentrations in Taeback and Kangneung areas was not significant (p>0.05), but significant at drilling sites and coal faces (p<0.05).
Coal*
;
Dust*
;
Fourier Analysis
;
Gangwon-do*
;
Quartz*
;
Spectrophotometry, Infrared