1.A clinical study on cementless porous coated femoral component.
The Journal of the Korean Orthopaedic Association 1991;26(5):1371-1379
No abstract available.
2.Interpretation of simple X-ray film.
Journal of the Korean Academy of Family Medicine 2000;21(11):1363-1380
No Abstract Available.
X-Ray Film*
3.Comparison of the Clinical Effects of the Different Ventilatory Care Strategies in the Neonates with Acute Respiratory Failure: High Flow Rate - Constant Flow Rate.
June Dong PARK ; Beyng Il KIM ; Jung Hwan CHOI
Journal of the Korean Society of Neonatology 1999;6(2):145-153
PURPOSE: High flow rate (FR) and pressure limit (PL) strategy with time-cycled pressure-limited (TCPL) ventilator is employed routinely in the neonates. Theoretical basis of this strategy is the two-compartment theory that the lung with acute respiratory failure consists of units with different compliance and resistance. But such constant pressure strategy has the risk of ventilator induced lung injury. We compared the ventilatory indices and clinical outcomes of two different strategies, high FR-constant pressure and low FR-constant FR in the ventilator care of the neonates with acute respiratory failure. METHODS: For the neonates born in our hospital and treated with mechanical ventilation from March to August in 1997, two different ventilator strategies were employed randomly with flow control ventilator. In the high-FR group, the FR was fixed at 10 L/ min and the PL was adjusted according to the arterial blood gas analysis (ABGA) results. In the low-FR group, the FR was adjusted to 10 mL/kg of tidal volume. Sixty neonates were enrolled, 32 in high-FR and 28 in low-FR group. Ventilatory indices and clinical outcomes were statistically cornpared in the two groups. RESULTS: Perinatal factors were not different in the two groups. Initial ventilator settings, ABGA results and ventilatory indices were not different. The tidal volume, fraction of inspired oxygen, peak inspired pressure and oxygenation index were higher and dynamic compliance was lower in the high-FR group compared to the low-FR group after 3 to 72 hours of ventilator care. In clinical outcomes, incidences of pulmonary interstitial emphysema, pneumothorax and chronic lung disease were significantly lower in the low-FR group. CONCLUSION: Low-FR with constant FR strategy resulted in better clinical outcomes in the ventilator care of neonates. We conclude that constant FR strategy prevents damage of the better compliant lung units and decreases the incidence of acute and chronic complications of ventilator care.
Blood Gas Analysis
;
Compliance
;
Emphysema
;
Humans
;
Incidence
;
Infant, Newborn*
;
Lung
;
Lung Diseases
;
Oxygen
;
Pneumothorax
;
Respiration, Artificial
;
Respiratory Insufficiency*
;
Tidal Volume
;
Ventilator-Induced Lung Injury
;
Ventilators, Mechanical
4.Upper Gastrointestinal Fiberoptic Endoscopy in Children.
Dong Hyup LEE ; Chong Woo BAE ; Yong Mook CHOI ; Chang Il AHN ; Young Il MIN
Journal of the Korean Pediatric Society 1987;30(8):868-873
No abstract available.
Child*
;
Endoscopy*
;
Humans
5.A Human Case of Hepatic Fascioliasis Accompanied by Egg Granulomas in Common Bile Duct Lymph Node.
Jun Hyuk CHOI ; Dogn Sug KIM ; Won Hee CHOI ; Tae Sook LEE ; Dong Il CHUNG ; Dong Wik CHOI
Korean Journal of Pathology 1991;25(3):250-255
A 32-year-old housewife who resides in Taegu was admitted in Yeungman University Hospital due to right upper quadrant abdminal pain of 2 mounths'duration. An abdomical CT and ultrasonography revealed a relatively well demarcated low density mass in the right lobe of liver. Right hepatic lobectomy was performed on the clinical impression of hepatoma. On the light microscopic study, the lobulated liver mass showed extensive central necrosis and fibrosis, with large numbers of pseudotubercles therein. The pseudotubercles have distorted helminthic eggs frequently. The submitted common bile duct lymph node also showed a few pseudotubercles. The eggs recovered from the tissue homogenate measured 140~152 micrometer by 75~85 micrometer in size and were unembryonated and light yellow to brown. The eggs were determined as those of Fasciola species. We reported the present case as 11th one of human fascioliasis in korea.
Humans
6.Maternal and perinatal outcomes in triplet versus twin pregnancies with the result of Assisted Reproductive Technology.
Chang Ik CHOI ; In Bai CHUNG ; Gab Young OH ; Ki Dong CHOI ; Hyun Il CHOI ; Hyuck Dong HAN ; Young Jin LEE
Korean Journal of Obstetrics and Gynecology 1999;42(9):2013-2018
The present study was performed to compare maternal and perinatal outcomes in triplet and twin pregnancies with the result of ART(Assisted Reproductive Technology). Each pregnancy of 18 triplet pregnancies with 18 weeks or more was matched for maternal age, EDC(estimated date of confinement), parity, history of preterm delivery, indication of ART with two sets of twin pregnancies. Triplet pregnancies had a significantly shorter gestational age at delivery than twin pregnancies(30.4 versus 34.6 weeks), and a significantly lower mean birth weight(1,514 versus 2,286g). The mean hospital stay was significantly longer in triplets(22.3 versus 10.1 days). The incidences of 5 min Apgar score less than 7, neonatal deaths were significantly more often in triplets than twins; 18(33.3%) vs 6(8.3%), 15(27.8%) vs 7(9.72%), respectively. There were significant differences in the incidence of neonatal complications such as respiratory distress syndrome; 14(25.9%) vs 7(9.72%), ventilatory support; 18(33.3%) vs 5(6.9%), neonatal seizure; 9(16.7%) vs 0, btween the two groups. However, there were no significant differences between the groups in maternal complications or neonatal morbidity such as congenital malformations or hyperbilirubinemia, intraventricular hemorrhage, or bronchopulmonary dysplasia. We suggest that counseling patient regarding the anticipated perinatal outcomes of triplet pregnancies with the result of ART should be conducted with our data.
Apgar Score
;
Bronchopulmonary Dysplasia
;
Counseling
;
Female
;
Gestational Age
;
Hemorrhage
;
Humans
;
Hyperbilirubinemia
;
Incidence
;
Infant, Newborn
;
Length of Stay
;
Maternal Age
;
Parity
;
Parturition
;
Pregnancy
;
Pregnancy, Triplet
;
Pregnancy, Twin*
;
Reproductive Techniques, Assisted*
;
Seizures
;
Triplets*
7.The Usefulness of the UBC(TM)(Urinary Bladder Cancer) Test for Screening of Transitional Cell Carcinoma of the Bladder in Patients with Hematuria.
Korean Journal of Urology 2004;45(1):14-18
PURPOSE: A new quantitative tumor marker, based on the combined measurement of urinary fragments of cytokeratins 8 and 18, namely the urinary bladder cancer antigen(UBC(TM)) test, has been proposed for the detection of bladder transitional cell carcinoma(TCC). We evaluated the diagnostic efficacy of UBC(TM) test in comparison with that of urinary cytology to establish UBC(TM) test for the diagnosis of TCC. MATERIALS AND METHODS: One-hundred ninety-six patients with hematuria were included in this study. Forty patients were diagnosed histologically as TCC by transurethral resection or radical cystectomy(group A), while the others had various benign urinary tract conditions(group B). RESULTS: UBC(TM) levels were significantly different between groups A (1851.39+/-4627microgram/l) and B (19.28+/-107.03microgram/l) (p<0.001). Sensitivity for diagnosis of TCC was 89.7%(36/40) in UBC(TM) test and 45%(18/40) in cytology(p<0.05). Specificity for diagnosis of TCC was 84.6%(132/156) in UBC(TM) test and 100%(156/156) in cytology. UBC(TM) test was significantly more sensitive than cytology in stage Ta(85.7% vs. 0%, p<0.05), T1 tumors(89.4% vs. 31.5%, p<0.05), and in Grades 1(83.3% vs. 25%, p<0.05) and 2(90.4% vs. 52.3%, p<0.05) tumors. UBC(TM) test was more sensitive in higher Grade(83.3% in Grade 1, 90.4% in Grade 2 and 100% in Grade 3). CONCLUSIONS: In comparison with urinary cytology, UBC(TM) test could be a valuable marker for diagnosis of TCC in patients with early stage and low grade TCC. Therefore, UBC(TM) test in association with cytology may be useful as a screening test for TCC of the bladder.
Carcinoma, Transitional Cell*
;
Diagnosis
;
Hematuria*
;
Humans
;
Keratins
;
Mass Screening*
;
Sensitivity and Specificity
;
Urinary Bladder Neoplasms
;
Urinary Bladder*
;
Urinary Tract
8.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
9.Prognostic evaluation of regional lymph node morphology in uterine cervical cancer.
Dong Hee CHOI ; Byung Seok LEE ; Tchan Kyu PARK ; Chan Il PARK
Korean Journal of Obstetrics and Gynecology 1991;34(11):1583-1591
No abstract available.
Lymph Nodes*
;
Uterine Cervical Neoplasms*
10.Urologic Diseases in Korean Military Population: a 6-year Epidemiological Review of Medical Records.
Se Young CHOI ; Chang Gyo YOON
Journal of Korean Medical Science 2017;32(1):135-142
We sought to describe the incidence rate of the urologic disease in the Korean military by reviewing diagnoses made in active duty soldiers from 2008 to 2013. A total of 72,248 first visits were generated in the Defense Medical Statistics Information System (DMSIS) with its gradually increasing trend over 6 years. A sharp increase of first visit was observed after implementation of the regular health check-up for all conscripted soldiers since 2013. Urolithiasis, prostatitis, epididymoorchitis, urethritis, and varicocele were prevalent. Prostatitis was the highest diagnosis made in the outpatient service, while varicocele was ranked the highest in the inpatient service. The incidence rates of urologic disease varied from 12.3 to 34.2 cases per 1,000 person-years. The urologic disease in conscripted men showed different distribution when we separated the population into conscripted and professional soldiers. Epididymoorchitis was the highest disease followed by urolithiasis, dysuresia, and balanoposthitis in 2013. This study underscores that the urologic disease has spent significant amount of health care resources in the Korean military. This calls for further study to find any significant difference and contributing factors of the urologic disease in the military and the civilian population.
Delivery of Health Care
;
Diagnosis
;
Epidemiology
;
Humans
;
Incidence
;
Information Systems
;
Inpatients
;
Male
;
Medical Records*
;
Military Personnel*
;
Outpatients
;
Prostatitis
;
Urethritis
;
Urolithiasis
;
Urologic Diseases*
;
Urology
;
Varicocele