1.Rh C/c , E/e genotyping by polymerase chain reaction using sequence - specific primers.
Yoo Sung HWANG ; Heung Bum OH ; Sang In KIM ; Dong Hee SEO
Journal of the Korean Society for Microbiology 1999;34(1):21-26
BACKGROUNDS: With the recent elucidation of genetic basis of Rh blood group, it is now available the molecular genotyping methods for Rh blood typing. These can be used when serological typing is difficult. This study was conducted to investigate the usefulness of Rh genotyping method for Koreans. METHODS: Genotyping for Rh C/c and E/e was performed in peripheral blood DNA samples from 34 blood donors by polymerase chain reaction using sequence-specific primers (PCR-SSP). The PCR determined genotypes were compared with serologically determined phenotypes. RESULTS: The Rh C/c and E/e genotyping results of 34 blood donors were full concordance with the results of their serologic phenotyping. CONCLUSIONS: Rh genotyping method on the basis of Rh genetic model can be applied to Koreans. This genotyping method would be useful tool in prenatal Rh typing of fetus at risk of hemolytic disease and when serotyping is not available for example massive transfusion. (Korean J Blood Transfusion 10(1): 21-26, 1999)
Blood Donors
;
Blood Grouping and Crossmatching
;
Blood Transfusion
;
DNA
;
Fetus
;
Genotype
;
Humans
;
Models, Genetic
;
Phenotype
;
Polymerase Chain Reaction*
;
Serotyping
2.Extensor Mechanism Injuries of the Finger
Moon Sang CHUNG ; Soo Joong CHOI ; Yong Bum PARK ; Joong Bae SEO ; Woo Dong NAM
The Journal of the Korean Orthopaedic Association 1996;31(6):1259-1266
Injuries to the extensor mechanism include a wide range of injuries from minor one to massive defect. And the methods of treatment must be individualized according to the anatomical site, extent and chronicity of injuries. The extensor mechanism is a triangular thin sheet like structure, the function of which cannot be explained completely by the Tubiana's church-steeple like diagram. Authors think that the extensor mechanism should be repaired or reconstructed as a triangular sheet. The tension of the repaired or reconstructed tendon was estimated as good when the neutral extensions were obtained in all the MP, PIP and DIP joints after the completion of sutures. Also authors think that stable sutures are mandatory for the early rehabilitation postopoeratively. Seventy-five patients have been treated by the authors from 1982 to 1994. According to zonal classification, forty-two patients were injured in Zone I. 5 in Zone II, 21 in Zone III, 5 in Zone IV and 2 patients were unclassified due to massive defects of the extensor mechanism. Mostly bony mallet injuries were treated by open reduction and K-wire fixation. Acute tendinous mallet injuries were treated by conservative splinting and old injuries were treated by anatomical plication of the terminal extensor tendon. Old buttonhole deformities were generally treated by the central tendon plication. Massive defects were managed by skin coverage and reconstruction of the extensor mechanism by using a tendon graft which was tailored like a triangular thin sheet. With author's treatment principles, excellent or good results were obtained in about 87%. Consequently, authors emphasize that an anatomical repair or reconstruction is a keystone in the treatment of injuries to the extensor mechanism.
Classification
;
Congenital Abnormalities
;
Fingers
;
Fluconazole
;
Humans
;
Joints
;
Rehabilitation
;
Skin
;
Splints
;
Sutures
;
Tendons
;
Transplants
3.The Effects of a New Eyeball Fixation Device on the Ablation Surface Profile in Photore fractive Kertectomy.
Dong Ho LEE ; Eung Kweon KIM ; Kyoung Yul SEO ; Hyun Chae LEE ; Jae Bum LEE ; Jung Bum KIM
Journal of the Korean Ophthalmological Society 2001;42(1):127-136
The surgical outcome of excimer laser photorefractive keratectomy(PRK) depends on the accuracy of ablation and the smoothness of the surface ablated. The purpose of this study was to investigate the clinical usefulness of a new eyeball fixation device(EK fixation device). First, the PRK was done on the cornea of New Zealand white rabbit (-8 D, 5.5 mm). The surface with the device was smoother compared to that without. Second, The PRK (-4 D, 6 mm)was done on the surface of the contact lens over the cornea of human volunteers. The ablation surface with the device was smoother than that without(0.20+/-0.04 micrometer vs. 0.34 +/-0.14 micrometer, p=0.028). The epithelial healing experiment in New Zealand white rabbit after myopic PRK (-8 D, 5.5 mm)showed more rapid wound healing in the fixation group (66.49+/-0.03 micrometer/hr vs 47.93+/-1.80 micrometer/hr, p=0.0001). In conclusion, the EK fixation device during the PRK procedures creates a smoother ablation surface and enhances corneal epithelial healing, thus may be a useful clinical device.
Cornea
;
Healthy Volunteers
;
Lasers, Excimer
;
New Zealand
;
Wound Healing
4.Tuberculous Aortitis Complicated with Pseudoaneurysm Formation in the Descending Thoracic Aorta: A Case Report.
The Korean Journal of Thoracic and Cardiovascular Surgery 2012;45(6):408-411
A 51-year-old male with sustained fever was diagnosed with military tuberculosis and tuberculous aortitis complicated with pseudoaneurysm formation at the proximal descending aorta. A follow-up computed tomography evaluation showed an increased size of the pseudoaneurysm in this area, suggestive of a contained rupture. Consequently, the patient underwent emergency excision and replacement of the aorta using a left heart bypass. The patient was discharged without postoperative complications on post-operative day 12. During the one-year follow-up period, the patient was free of any complications or recurrence of tuberculosis. We report a case of pseudoaneurysm of the descending aorta that was successfully surgically repaired.
Aneurysm, False
;
Aorta
;
Aorta, Thoracic
;
Aortitis
;
Emergencies
;
Fever
;
Follow-Up Studies
;
Heart Bypass, Left
;
Humans
;
Male
;
Middle Aged
;
Military Personnel
;
Postoperative Complications
;
Recurrence
;
Rupture
;
Tuberculosis
5.Comparison between Planar View and SPECT View on the Dipyridamole Thallium 201 Myocardial Perfusion Scintigraphy.
Sung Yub YEO ; Jeong Pyo JANG ; Hong JOO ; Hong Bum KIM ; Jong Han OK ; Dong Ryong SEO ; You Soon CHAE
Korean Circulation Journal 1988;18(2):207-220
Exercise testing with Thallium imaging is widely used for the noninvasive evaluation of patients suspected of having coronary artery disease. However, many patients referred for stress testing connot exercise adequately for either physical or psychological reasons, and as a result may have nondiagnostic or suboptimal test results. Intravenous dipyridamole in conjunction with Thallium imaging is as effective alternative method without exercise. But, myocardial imaging using the standard scintillation camera technique(planner view) is hampered by superposition of proximal & distal cardial walls and by the segmental nature of myocardial ischemia. For this reason, Single Photon Emission Computed Tomography(SPECT) reslut in high specificity & sensitivity rates for the detection of coronar artery disease compared with conventional technique. So we performed dipyridamole Th-201 myocardial scintigraphy on 25 subjects who have suspicious angina or myocardial infarction instead of exercise Th-201 myocardial scintigraphy, and compared SPECT view with conventional plannar view. The results obtained are as follows : 1) T1-201 scintigraphic findings in 17 patients with suspicious angina were as follows ; redistribution defect was seen in 4 cases in plannar view and 13 cases in SPECT view. 2) T1-201 scintigraphic findings in 8 patients with myocardial infarction were as follows ; in planner view, perfusion defect was seen in all cases and 1 cases of them, redistribution defect was accompained, and in SPECT view, perfusion defect was seen in all cases and 6 cases of them, redistribution defect was accompained. 3) During dipyridamole infusion, the mean systolic & diatolic pressure decreased from 133+/-22.7/86+/-13.5 to 121+/-23.9/78+/-13.1mmHg and the heart rate increased from 68+/-12.4 to 84+/-12.4beats/min. 4) Adverse effects of dipyridamole were noted in 14(56%) of the subjects, but in 12 of these, the symptoms were mild in severity and subsided spontanously. To summarize, Dipyridamole-201 myocardial imaging is a useful and test for coronary artery disease, and the new tomographic technique, SPECT view, is more useful than the conventional plannar view.
Arteries
;
Coronary Artery Disease
;
Dipyridamole*
;
Exercise Test
;
Gamma Cameras
;
Heart Rate
;
Humans
;
Myocardial Infarction
;
Myocardial Ischemia
;
Myocardial Perfusion Imaging
;
Perfusion Imaging*
;
Perfusion*
;
Sensitivity and Specificity
;
Thallium*
;
Tomography, Emission-Computed, Single-Photon*
6.Prenatal Determination of Fetal Rh, Kell and MN Blood Group Antigens by DNA Analysis of Amniotic Fluid.
Heung Bum OH ; Dong Hee SEO ; Kyou Sup HAN
Korean Journal of Clinical Pathology 1999;19(6):729-734
BACKGROUND: Prenatal determination of a blood antigen of a fetus at risk for hemolytic disease of the newborn makes the obstetrician facilitate to take timely procedures such as intra-uterine transfusion or plasma exchange. However, determining the phenotype of a fetal antigen is of limited use because fetal RBCs must be obtained by periumbilical blood sampling which entails considerably greater adverse outcomes than an amniocentesis does. METHODS: Genotypes of Rh, MN and Kell systems using 14 amniotic fluid samples were compared with phenotypes of cord blood. The incidence of maternal blood contamination in 8 amniotic fluid samples which were obtained during mid-trimester was estimated by amplification of variable number of tandem repeat(VNTR) D1S80. The detection sensitivity of each technique was evaluated by artificially mixed samples. RESULTS: All the 14 paired samples of amniotic fluid and cord blood showed identical results between the genotype of amniocyte and the phenotype of cord blood. Of 8 paired samples of amniotic fluid and maternal blood, D1S80 VNTRs of fetuses were evidently amplified and there were no evidence of maternal blood contamination. The detection sensitivity of Rh(E) and Rh(c) genotyping was 0.5% by ethidium bromide staining, while D1S80 VNTR was 10%. Heterozygosity of D1S80 VNTR was 94%. CONCLUSIONS: Genotypes of Rh, MN and Kell systems could be prenatally determined by this technique. Since the heterozygosity of D1S80 VNTR is high up to 94% in Koreans, D1S80 VNTR could be effectively used in determining the maternal blood contamination of amniotic fluid. The prenatal determination of fetal red cell antigen genotypes by this technique will be helpful for the management of sensitized pregnancies at risk for HDN.
Amniocentesis
;
Amniotic Fluid*
;
Blood Group Antigens*
;
DNA*
;
Ethidium
;
Female
;
Fetal Blood
;
Fetus
;
Genotype
;
Humans
;
Incidence
;
Infant, Newborn
;
Phenotype
;
Plasma Exchange
;
Pregnancy
7.Rh C/c, E/e genotyping by polymerase chain reaction using sequence-specific primers.
Dong Hee SEO ; Heung Bum OH ; Yoo Sung HWANG ; Sang In KIM
Korean Journal of Blood Transfusion 1999;10(1):21-26
BACKGROUNDS: With the recent elucidation of genetic basis of Rh blood group, it is now available the molecular genotyping methods for Rh blood typing. These can be used when serological typing is difficult. This study was conducted to investigate the usefulness of Rh genotyping method for Koreans. METHODS: Genotyping for Rh C/c and E/e was performed in peripheral blood DNA samples from 34 blood donors by polymerase chain reaction using sequence-specific primers (PCR-SSP). The PCR determined genotypes were compared with serologically determined phenotypes. RESULTS: The Rh C/c and E/e genotyping results of 34 blood donors were full concordance with the results of their serologic phenotyping. CONCLUSIONS: Rh genotyping method on the basis of Rh genetic model can be applied to Koreans. This genotyping method would be useful tool in prenatal Rh typing of fetus at risk of hemolytic disease and when serotyping is not available for example massive transfusion.
Blood Donors
;
Blood Grouping and Crossmatching
;
DNA
;
Fetus
;
Genotype
;
Humans
;
Models, Genetic
;
Phenotype
;
Polymerase Chain Reaction*
;
Serotyping
8.Successful Conversion Arterial Switch Operation after Palliative Senning Operation.
Joon Bum KIM ; Jeong Jun PARK ; Sung Ho CHUNG ; In Sook PARK ; Dong Man SEO
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(2):140-144
Six year-old female having TGA, VSD with severe PHT which was considered inoperable for anatomical correction, received palliative Senning procedure. During follow-up, she was given prostacyclin and at the age of 21, she received Senning takedown, arterial switch and VSD closure after a reevaluation of the hemodynamic status. Significant reduction in PHT was found and she is doing well without complication 3 months after the operation.
Epoprostenol
;
Female
;
Follow-Up Studies
;
Hemodynamics
;
Humans
9.Asymptomatic Synchronous Tuberculosis Involving Stomach and Small Bowel in Immunocompetent Patient.
Jin Soo CHUNG ; Young Bum CHO ; Won Gak HEO ; Dong Ho JO ; Young Hun JEONG ; Geom Seog SEO
The Korean Journal of Gastroenterology 2015;66(6):345-349
Gastrointestinal tuberculosis that is not an unusual form of extrapulmonary tuberculosis and it is usually associated with immunocompromised condition that may present with clinical symptoms including fever, weight loss or pain. Terminal ileum and cecum are the common sites of involvement, but involvement of the stomach is rare. Furthermore, synchronous tuberculosis involving both the stomach and lower gastrointestinal tract has been reported in very few cases. Herein, we report a case of incidentally detected synchronous tuberculosis involving both the stomach and terminal ileum that was successfully treated by antituberculosis therapy in an asymptomatic immunocompetent patient.
Adult
;
Antitubercular Agents/therapeutic use
;
Asymptomatic Infections
;
Drug Therapy, Combination
;
Endoscopy, Digestive System
;
Female
;
Humans
;
Intestine, Small/pathology
;
Stomach/pathology
;
Tomography, X-Ray Computed
;
Tuberculosis, Gastrointestinal/*diagnosis/drug therapy
10.Changes in Area of Conjunctiva and Tear Meniscus Measured Using Anterior Segment Optical Coherence Tomography after Conjunctivochalasis Surgery.
Jong Soo KIM ; Jeong Bum BAE ; Jang Won SEO ; Woo Chan PARK
Journal of the Korean Ophthalmological Society 2015;56(4):509-514
PURPOSE: To evaluate cross-sectional areas of conjunctiva and tear meniscus of conjunctivochalasis using Fourier-Domain RTVue-100 optical coherence tomography (OCT) before and after conjunctivochalasis surgery. METHODS: Thirty-one patients (33 eyes) with symptomatic conjunctivochalasis were recruited for this study between June 2013 and April 2014. All patients underwent crescent-shaped conjunctiva resection and amniotic membrane transplantation. Anterior segment OCT (AS-OCT) imaging was performed and tear break-up time was evaluated prior to and 3 months after the conjunctivochalasis surgery. Cross-sectional areas of conjunctiva and tear meniscus of conjunctivochalasis at 7 locations (1 center, 3 nasal and 3 temporal areas) were measured in all patients. RESULTS: The mean age of patients was 66.3 +/- 10.8 years. Cross-sectional areas of conjunctivochalasis at all locations significantly decreased from 0.487 +/- 0.42 mm2 to 0.007 +/- 0.011 mm2 (p < 0.001), whereas no significant changes in cross-sectional areas of tear meniscus at all 7 locations were observed after the surgery. Mean tear break-up time significantly increased from 2.26 +/- 0.69 sec to 3.81 +/- 1.22 sec following the surgery. CONCLUSIONS: Using AS-OCT, in this study we showed that areas of conjunctiva decreased and areas of tear meniscus were unchanged after conjunctivochalasis surgery.
Amnion
;
Conjunctiva*
;
Humans
;
Tears*
;
Tomography, Optical Coherence*