1.Congenital Giant Aneurysm of Pulmonary Artery-Associated with Ventricular Septal Defect and Pulmonary Stenosis : A Case Report.
Cheol Gyu YOON ; Jin Gyu JANG ; Min Seop SONG ; Cheol Ho KIM
Korean Circulation Journal 1997;27(10):1050-1054
Aneurysm of the pulmonary artery is a rate entity. A neonate was seen with cyanosis and tachypnea. There was a grade 4/6 systolic murmur along the left sternal border. The chest X-ray showed a round mass shadow in the left parahilar region. Echocardiogram showed large Ventricular Septal Defect and mild Pulmonary Stenosis. The cardiac angiogram showed giant aneurysm of pulmonary artery. Surgical intervention was advised. However, the patient was discharged against operative plan. And the patient died two weeks later.
Aneurysm*
;
Cyanosis
;
Heart Septal Defects, Ventricular*
;
Humans
;
Infant, Newborn
;
Pulmonary Artery
;
Pulmonary Valve Stenosis*
;
Systolic Murmurs
;
Tachypnea
;
Thorax
2.Localized Fibrous Mesothelioma of the Liver: A Case Report.
Young Hwan KIM ; In Chul LEE ; Moon Gyu LEE ; Yong Ho AUH ; Young Cheol WEON ; Seung Gyu LEE ; Yoon Jeong KIM
Journal of the Korean Radiological Society 1995;33(4):605-607
Localized fibrous mesothelioma of the liver is very rare benign tumor. It usually manifest large palpable hepatic mass in right upper quadrant area, and the prognosis is excellent by surgical resection. Contrast enhanced CT scan shows well defined hyperattenuating mass and celiac anglogram shows hypervascular mass. Recently we experienced 1 case of localized fibrous mesothelioma of the liver, and we report CT and anglographic findings of this tumor.
Liver*
;
Prognosis
;
Solitary Fibrous Tumor, Pleural*
;
Tomography, X-Ray Computed
3.An experimental study about efficacy of drain catheters.
Bum Gyu AHN ; Joon Young NHO ; Hyo Cheol WOO ; Woo Cheol HWANG ; Choong Ki PARK ; Jong Sup YOON
Journal of the Korean Radiological Society 1993;29(5):917-922
Although percutaneous abscess drainage has become and accepted alternative from of therapy for selected patients with abscess, it is well known that there are several factors in the failure of adequate drainage such as pre-and post- procedural management, technique itself, various features of abscess, and selection and application of catheters. Among these factors, we made an experiment about drain efficacy of commonly used various catheters with different viscosities of water-glycerin solution under the two different pressure gradients. The experimental values of flow rate were lower than than the calculated values. An efficacy of experimental value was 4-14%. Because the inner diameter of fittings and stopcocks was usually smaller than the inner diameter of catheters, these factors also affected the drain efficacy. Finally, we though that it will be very helpful to the treatment of patients as well as to study about the catheter drainage, if the drain efficacy of individual catheters has been notified.
Abscess
;
Catheters*
;
Drainage
;
Humans
;
Viscosity
4.Effect of Cyclic GMP on Human Cytomegalovirus Gene Expression.
Joo Hyun YOON ; Gyu Cheol LEE ; Byung Hak SONG ; Young Jin KIM ; Chan Hee LEE
Journal of the Korean Society of Virology 1999;29(4):261-269
No abstract available.
Cyclic GMP*
;
Cytomegalovirus*
;
Gene Expression*
;
Humans*
5.Antimicrobial Susceptibilities and Serotypes of Group B Streptococci Isolated from Pregnant Women.
Young UH ; In Ho JANG ; Gyu Yel HWANG ; Kap Jun YOON ; Jang Yeon KWON ; Myeong Cheol KIM
Korean Journal of Clinical Pathology 1997;17(2):260-268
BACKGROUND: Recent data suggest that the colonization rate of group B streptococci(GBS) in pregnant women and the incidence of neonatal infections by GBS is increasing trend in Korea, but the antimicrobial susceptibilities and serotypes in pregnant women have not been reported in Korea. So, we studied to define the antimicrobial susceptibility patterns and frequency of serotypes of GBS in pregnant women. METHODS: The susceptibility and serotyping of 60 GBS isolates from 27 pregnant women and four isolates from their two neonates were tested by an agar dilution method and agglutination test, respectively. The typing sera used in this study were Ia, Ib, II, III, IV, and V. RESULTS: Minimal inhibitory concentration range of 60 GBS from pregnant women were penicillin G 0.015-0.12 microgram/ml, vancomycin 0.5-2 microgram/ml, clindamycin 0.015-4.0 microgram/ml, chloramphenicol 2-4 microgram/ml, erythromycin 0.015-2 microgram/ml, tetracycline 0.5-256 microgram/ml, cephalothin 0.12-0.25 microgram/ml, ceftriaxone 0.03-0.12 microgram/ml, respectively. The resistance rate of GBS were 6.7% to clindamycin, 0% to erythromycin, and 98.3% to tetracycline. Most of GBS serotypes from pregnant women in decreasing order were Ib(48.3%), Ia(24.1%), III(20.7%). CONCLUSION: All GBS strains isolated from pregnant women are highly susceptible to commonly used antimicrobial agents with the exception of tetracycline. The low prevalence of severe neonatal GBS infections in Korea is not due to the absence of serotype III, but probably due to a low genital carriage rate of GBS by pregnant women.
Agar
;
Agglutination Tests
;
Anti-Infective Agents
;
Ceftriaxone
;
Cephalothin
;
Chloramphenicol
;
Clindamycin
;
Colon
;
Erythromycin
;
Female
;
Humans
;
Incidence
;
Infant, Newborn
;
Korea
;
Penicillin G
;
Pregnant Women*
;
Prevalence
;
Serotyping
;
Tetracycline
;
Vancomycin
6.Kostmann's Disease: A Case Report.
Cheol Gyu YOON ; Jin Gyu JANG ; Jong Beom SIN ; Soon Yong LEE
Korean Journal of Pediatric Hematology-Oncology 1999;6(1):136-140
Kostmann's disease is a rare hematologic disease entity which is characterized by persistent neutropenia and recurrent bacterial infections since early in infancy. The authors experienced a 2-month-old female infant with disseminated bacterial skin infection since 3 weeks of age and persistent neutropenia. Diagnosis was made by neutropenia in the peripheral blood, maturation arrest of myeloid hemopoiesis at myelocyte stage in the finding of bone marrow aspiration and improving response of neutropenia with G-CSF administration. She had experienced 4 episodes of sepsis and one episode of acute otitis externa during follow-up until 14 months of age.
Bacterial Infections
;
Bone Marrow
;
Bone Marrow Transplantation
;
Diagnosis
;
Female
;
Follow-Up Studies
;
Granulocyte Colony-Stimulating Factor
;
Granulocyte Precursor Cells
;
Hematologic Diseases
;
Humans
;
Infant
;
Neutropenia
;
Otitis Externa
;
Sepsis
;
Skin
7.The detection of anti-ENA antibodies in systemic rheumatic diseases.
Sang Cheol BAE ; Gwan Gyu SONG ; In Hong LEE ; Dae Hyun YOO ; Seong Yoon KIM ; Think You KIM
Korean Journal of Medicine 1993;45(4):422-436
No abstract available.
Antibodies*
;
Rheumatic Diseases*
8.Results of Hip Arthroplasty Using a COREN Stem at a Minimum of Ten Years
Joon Soon KANG ; Yoon Cheol NAM ; Dae Gyu KWON ; Dong Jin RYU
Hip & Pelvis 2022;34(4):211-218
Purpose:
We report on the 10-year clinical hip function and radiologic outcomes of patients who underwent hip arthroplasty using a COREN stem.
Materials and Methods:
A consecutive series of 224 primary cementless hip arthroplasty implantations were performed using a COREN stem between 2009 and 2011; among these, evaluation of 128 hips was performed during a minimum follow-up period of 10 years. The mean age of patients was 65.4 years (range, 40-82 years) and the mean duration of follow-up was 10.8 years (range, 10-12 years). Evaluation of clinical hip function and radiologic implant outcomes was performed according to clinical score, thigh pain, and radiologic analysis.
Results:
Dramatic improvement of the mean Harris hip score (HHS) from 59.4 preoperatively to 93.5 was observed at the final follow-up (P≤0.01). Stable fixation was demonstrated for all implants with no change in position except for one case of Vancouver type B2 periprosthetic femur fracture. A radiolucent line (RLL) was observed in 16 hips (12.5%). Thigh pain was observed in only two hips (1.6%) at the final follow-up. There were no cases of osteolysis around the stem. The survival rate for the COREN stem was 97.7%.
Conclusion
Good long-term survival with excellent clinical and radiological outcomes can be achieved using the COREN femoral stem regardless of Dorr type.
9.Skin entrance dose for digital and film radiography in Korean dental schools.
Eun Sang CHO ; Kun Ho CHOI ; Min Gyu KIM ; Hoi Jeong LIM ; Suk Ja YOON ; Byung Cheol KANG
Korean Journal of Oral and Maxillofacial Radiology 2005;35(4):203-205
PURPOSE: This study was aimed to compare skin entrance dose of digital radiography with that of film radiography and to show the dose reduction achievement with digital systems at 11 dental schools in Korea. MATERIALS AND METHODS: Forty six intraoral radiographic systems in 11 dental schools were included in this study. Digital sensors were used in 33 systems and film was used in 13 systems. Researchers and the volunteer visited 11 dental schools in Korea. Researchers asked the radiologic technician (s) at each school to set the exposure parameters and aiming the x-ray tube for the periapical view of the mandibular molar of the volunteer. The skin entrance doses were measured at the same exposure parameters and distance by the technician for each system with a dosimeter (Multi-O-Meter : Unfors instruments, Billdal, Sweden). RESULTS: The median dose was 491.2micronGy for digital radiography and 1, 205.0 microGy for film radiography. The skin entrance dose in digital radiography was significantly lower than that of film radiography (p< 0.05). CONCLUSIONS: Fifty-nine percent skin entrance dose reduction with digital periapical radiography was achieved over the film radiography in Korean dental schools.
Humans
;
Korea
;
Molar
;
Radiographic Image Enhancement
;
Radiography*
;
Schools, Dental*
;
Skin*
;
Volunteers
10.Clinical Features Of Mixed Connective Tissue Disease: 18 Cases In Korea.
In Hong LEE ; Gwan Gyu SONG ; Sung Soo JUNG ; Sang Cheol BAE ; Dae Hyun YOO ; Think You KIM ; Seong Yoon KIM
The Journal of the Korean Rheumatism Association 1994;1(1):39-45
OBJECTIVE: Mixed connective tissue disease(MCTD) was first described by Sharp and coworkers in 1972 as distinct rheumatic diseases characterized by the overlapping features of systemic lupus erythematosus (SLE), systemic sclcrosis (SSc) and dermatomyositis/polymyositis and associated with the serologic marker anti-nRNP antibody at high titer. METHODS: We reviewed 18 cases(all females) of MCTD who were admitted or visited to rheumatism center of Hanyang University Hopital, from October 1989 to September 1992. RESULTS: 1) The average age at onset of MCTD was 38.6 years. The average duration of the disease was 5.3 years. 2) Raynaud's phenomenon was found in 100%. Arthritis was found in 13 cases but rheumatoid factor was found in 15 cases. 3) Hand swelling was found in 15 cases and myositis was found in 56% (10 cases). 4) All patients with MCTD have anti-nRNP antibodies by high titer. In general, the titer does not correlate with disease activity. CONCLUSIONS: These data suggested that the clinical features of MCTD in Korean patients revealed similar to those of previous reports regarding foreign ethnic groups.
Antibodies
;
Arthritis
;
Connective Tissue
;
Ethnic Groups
;
Hand
;
Humans
;
Korea*
;
Lupus Erythematosus, Systemic
;
Mixed Connective Tissue Disease*
;
Myositis
;
Rheumatic Diseases
;
Rheumatoid Factor