1.Erythropoietic Protoporphyria in a Family.
Son Won BYEON ; Seung Kyung HANN ; Jeong Ho KIM ; Sungbin IM ; Yoon Kee PARK ; Oh Hun KWON
Annals of Dermatology 1993;5(1):25-29
Erythropoietic protoporphyria (EPP) is an autosomal dominant condition due to decreased activity of ferrochelatase. The disease is characterized by a wide range of photocutaneous changes and occasionally by liver disease. The level of protoporphyin is raised in erythkocytes and it may also be increased in the feces. We report herein a case of EPP present in a family which was diagnosed by a high free erythrocyte protoporphyrin (FEP) count.
Erythrocytes
;
Feces
;
Ferrochelatase
;
Humans
;
Liver Diseases
;
Protoporphyria, Erythropoietic*
2.Erythropoietic Protoporphyria in a Family.
Son Won BYEON ; Seung Kyung HANN ; Jeong Ho KIM ; Sungbin IM ; Yoon Kee PARK ; Oh Hun KWON
Annals of Dermatology 1993;5(1):25-29
Erythropoietic protoporphyria (EPP) is an autosomal dominant condition due to decreased activity of ferrochelatase. The disease is characterized by a wide range of photocutaneous changes and occasionally by liver disease. The level of protoporphyin is raised in erythkocytes and it may also be increased in the feces. We report herein a case of EPP present in a family which was diagnosed by a high free erythrocyte protoporphyrin (FEP) count.
Erythrocytes
;
Feces
;
Ferrochelatase
;
Humans
;
Liver Diseases
;
Protoporphyria, Erythropoietic*
3.Anatomy as Elective Course for Fourth-Year Medical Students.
Tae Hwan KONG ; Sang Hun KIM ; Yong Hun SON ; Ki Sang CHUNG ; Ho Kyung JIN ; Hye Won JANG ; Chang Seok OH
Korean Journal of Physical Anthropology 2016;29(1):1-7
Five medical students in the fourth-year took anatomy as their elective courses for 1 month. They dissected one cadaver, and investigated Digital Report, under the course subjects as follows; (1) the shape of thyroid gland and the location of its isthmus, (2) the branches of left and right coronary arteries, (3) the number of blood vessels and bronchi on the hilum of lung, (4) topographical relationship of the renal vessels and ureter, and the shape of the renal pelvis, (5) the location and attachment of the appendix, (6) the penetration of median nerve through the pronator teres, (7) the sensory nerves and the extensor tendons on the dorsum of hand, (8) the branches of deep femoral artery. The pancreatic and live samples were processed and stained with H&E, for LM observation, since the individual had suffered from pancreatic cancer and got a Pylorus preserving pancreatico-duodenectomy (PPPD). At the last step of the elective course, students wrote small articles following the conventional method for writing manuscript. From the viewpoint of professor, the anatomy course for the fourth-year students were definitely different from that for first-year students, and had many positive effects in terms of anatomy education.
Appendix
;
Blood Vessels
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Bronchi
;
Cadaver
;
Coronary Vessels
;
Education
;
Femoral Artery
;
Hand
;
Humans
;
Kidney Pelvis
;
Lung
;
Median Nerve
;
Pancreatic Neoplasms
;
Pylorus
;
Students, Medical*
;
Tendons
;
Thyroid Gland
;
Ureter
;
Writing
4.Three Different Methods in Deformity Correction of Degenerative Flat Back: A Single Surgeon's Experience with 64 Consecutive Cases.
Ki Tack KIM ; Sang Hun LEE ; Jung Hee LEE ; Kyung Jung KANG ; Jung Suk LEE ; Eun Seok SON
Asian Spine Journal 2015;9(3):361-369
STUDY DESIGN: Retrospective study. PURPOSE: To evaluate the radiological and clinical results of three different methods in the deformity correction of a degenerative flat back. OVERVIEW OF LITERATURE: There are no comparative studies about different procedures in the treatment of degenerative flat back. METHODS: Sixty-four patients who consecutively underwent corrective surgery for degenerative flat back were reviewed. The operations were performed by three different methods: posterior-only (group P, n=20), one-stage anterior-posterior (group AP, n=12), and two-stage anterior-posterior with iliac screw fixation (group AP-I, n=32). Medical and surgical complications were examined and radiological and clinical results were compared. RESULTS: The majority of medical and surgical complications were found in group AP (5/12) and group P (7/20). The sagittal vertical axes were within normal range immediately postoperatively in all groups, but only group AP-I showed normal sagittal alignment at the final follow-up. Postoperative lumbar lordosis was also significantly higher in group AP-I than in group P or group AP and the finding did not change through the last follow-up. The Oswestry disability index was significantly lower in groups AP and AP-I than in group P at the final follow-up. Meanwhile, the operating time was the longest in group AP-I, and total amount of blood loss was larger in group AP-I and group AP than in group P. CONCLUSIONS: Anterior-posterior correction showed better clinical results than posterior-only correction. Two-staged anterior-posterior correction with iliac screw fixation showed better radiological results than posterior-only or one-staged anterior-posterior correction. Two-staged anterior-posterior correction with iliac screw fixation also showed a lower complication rate than one-staged anterior-posterior correction.
Animals
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Congenital Abnormalities*
;
Follow-Up Studies
;
Humans
;
Kyphosis
;
Lordosis
;
Lumbar Vertebrae
;
Reference Values
;
Retrospective Studies
;
Treatment Outcome
5.Operative Treatment in Fracture-Dislocations of Carpometacarpal Joints.
Jae Yeol CHOI ; Hun Kyu SHIN ; Kyung Mo SON ; Chun Suk KO
Journal of the Korean Fracture Society 2005;18(4):443-451
PURPOSE: To present our operative experiences with carpometacarpal (CMC) injuries, excluding thumb. MATERIALS AND METHODS: Thirty four fracture and dislocations of CMC joint excluding thumb were reviewed retrospectively. Emphases were placed on injury mechanisms, anatomical location, times between diagnosis and surgery, treatment and complications. RESULTS: The average age of patients was 31.5 years. 19 cases of axial loading by blow as an injury mechanism. The 5th CMC joint was found to be the most frequently involved single joint (18 cases of 34 cases). Dorsal dislocation of CMC joints was present in 12 cases. Comminution of the carpal or metacarpal bone was present in 18 cases. The average time to surgery was 6 days. Twenty-seven cases were operated upon by closed reduction and percutaneous pinning. Seven cases were treated by open reduction and internal fixation. In the last follow up period, a clinically full hand function was restored in 31 cases. Intermittent pain was present in 6 cases in which there was grip weakness in 4 cases and limitation of motion in 3 cases. However, all cases were able to activities of daily living. CONCLUSION: We obtained good outcomes in CMC joint injuries through the accurate diagnosis and proper operative treatment.
Activities of Daily Living
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Carpometacarpal Joints*
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Diagnosis
;
Dislocations
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Follow-Up Studies
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Hand
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Hand Strength
;
Humans
;
Joints
;
Retrospective Studies
;
Thumb
6.Bioavailability of EVA-Coated Metallic Stents Implanted in the Rabbit Iliac Artery.
Sang Woo NAM ; Byung Hyun RHEE ; Jei Keon CHAE ; Eun Kyung KIM ; Chang Ho SONG ; Dong Hun LEE ; Gil Son KHANG ; Won Ho KIM ; Jae Ki KO
Korean Circulation Journal 2003;33(7):614-619
BACKGROUND AND OBJECTIVES: Coronary artery stenting actually shows a high efficacy in the treatment of coronary heart disease, but has the major limitation of restenosis. The ethylene-vinyl acetate copolymer (EVA), a biocompatible nondegradable copolymer, has been employed as a rate-controlling membrane in several drug delivery systems. Herein, the feasibility of an EVA-coated coronary stent was evaluated as a possible route for localized drug delivery. MATERIALS AND METHODS: A total of 15 rabbits were employed in this study. An uncoated stent was implanted into the non-diseased iliac artery in six rabbits, and an EVA-coated stent into a further nine. On the 30th day following the stent implantations, stented segments of the iliac arteries were removed for histological processing and morphometric analysis. RESULTS: The mean neointimal area of the uncoated and coated groups were 1.009 and 1.011 mm2 (p=0.56), respectively. No inflammatory cells were found in coated group. There were no apparent differences between the two groups. CONCLUSION: The results from this study have demonstrated that an EVA-coated coronary stent might be an appropriate method for the controlled-release of a drug.
Biological Availability*
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Coronary Disease
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Coronary Vessels
;
Drug Delivery Systems
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Iliac Artery*
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Membranes
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Polyvinyls
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Rabbits
;
Stents*
7.A Case of Hepatoblastoma.
Young Hun KWACK ; Sung Chul SON ; Kyung Tai WHANG ; Sung Hoon CHO ; An Hi LEE ; Chong Moo LEE
Journal of the Korean Pediatric Society 1978;21(4):299-304
We have experienced a case of hepatoblastoma in 22 months old male infant who presented with abdominal distention and hepatomegaly. Diagnosis was confirmed by X-ray of abdomen, liver scan and histological findings. A brief review of literature was also presented.
Abdomen
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Diagnosis
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Hepatoblastoma*
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Hepatomegaly
;
Humans
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Infant
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Liver
;
Male
8.Leflunomide Treatment in BK Virus Associated Nephropathy after Renal Transplantation.
Young Ki SON ; Joon Seok OH ; Hyae Ju OH ; Yong Hun SHIN ; Joong Kyung KIM ; Hyeon Joo JEONG
Korean Journal of Nephrology 2009;28(3):211-218
PURPOSE:BK virus associated nephropathy (BKVAN) affects 1-10% of kidney transplant (KT) patients and it produces a progressive destruction of allograft. Reducing immunosuppression is the only way to save the graft, while it needs tight monitoring of the graft rejection and graft survival is poorer in advanced case. Leflunomide has immunosuppressive effect and also antiviral activity. Addition of leflunomide may improve BK virus clearance and graft survival. METHODS:6 KT patients with biopsy proven BKVAN (Histological pattern B) were treated with leflunomide and reduced immunosuppression. All patients were monitored with serial determination of viral load in blood and graft function. RESULTS:BKVAN was diagnosed at 14 months (7-28) post transplant, at that time median serum creatinine concentration was 2.8 mg/dL (1.8-3.6). 12.5 months (6-16) later of leflunomide treatment, median serum creatinine was 2.3 mg/dL and no graft loss was found. CONCLUSION:Leflunomide therapy with reduced immunosuppression may be effective in the treatment for BKVAN.
Biopsy
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BK Virus
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Creatinine
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Graft Rejection
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Graft Survival
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Humans
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Immunosuppression
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Isoxazoles
;
Kidney
;
Kidney Transplantation
;
Transplantation, Homologous
;
Transplants
;
Viral Load
;
Viruses
9.Is It Real False Negative Finding in Motor Evoked Potential Monitoring during Corrective Surgery of Ankylosing Spondylitis? A Case Report.
Ki Tack KIM ; Sang Hun LEE ; Yoon Ho KWACK ; Eon Seok SON
Asian Spine Journal 2012;6(1):50-54
We performed L1 posterior vertebral columnar resection and posterior correction for Andersson's lesion and thoracolumbar kyphosis in an ankylosing spondylitis patient during motor evoked potential (MEP) monitoring. We checked MEP intra-operatively, whenever a dangerous procedure for neural elements was performed, and no abnormal findings were seen during surgery. After the operation, we examined neurologic function in the recovery room; the patient showed a progressive neurologic deficit and no response to MEP. After emergency neural exploration and decompression surgery, the neurologic deficit was recovered. We questioned whether to acknowledge the results of this case as a false negative. We think the possible reason for this result may be delayed development of paralysis. So, we recommend that MEP monitoring should be performed not only after important operative steps but also after all steps, including skin suturing, for final confirmation.
Decompression
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Emergencies
;
Evoked Potentials, Motor
;
Humans
;
Kyphosis
;
Neurologic Manifestations
;
Paralysis
;
Skin
;
Spondylitis, Ankylosing
10.Association of Estrogen Receptor 2(ESR 2) Gene Polymorphisms with Ossification of the Posterior Longitudinal Ligament of the Spine.
Ki Tack KIM ; Sang Hun LEE ; Yoon Ho KWACK ; Eon Seok SON ; Kyoung Jun PARK ; Duk Hyun KIM
Journal of Korean Society of Spine Surgery 2012;19(1):1-7
STUDY DESIGN: Genetic screening of the estrogen receptor 2 (ESR2) genes in patients with ossification of the posterior longitudinal ligament (OPLL). OBJECTIVE: We studied the relationships between ESR2 gene polymorphisms and OPLL to understand the pathophysiology of OPLL. SUMMARY OF LITERATURE REVIEW: The OPLL has a strong genetic component. Several familial surveys and human leukocyte antigen (HLA) haplotype studies reveal that genetic background is an important component in the occurrence of OPLL and a large number of gene analysis studies were utilized to clarify the susceptible gene for OPLL, including COL11A2, BMP-2, TNF-alpha, NPPS, leptin receptor, transforming growth factor (TGF)-beta, Retinoic X receptor, ER, IL-1, PTH, and VDR have been performed. MATERIALS AND METHOD: Genomic deoxyribonucleic acid (DNA) samples obtained from 164 patients (93 men and 71 women) with OPLL and 219 control subjects, without the disease (105 men and 114 women) were amplified by polymerase chain reaction, and polymorphism genotypes were determined by the restriction endonuclease digestion. The distribution of genotypes was compared between the patients with the disease and the control subjects. RESULTS: The polymorphism of ESR2 [rs1256049, exon6, Val328Val, p=0.018, odd ratio (OR)=2.41, 95 confidence interval (CI)=1.15-5.02 in the recessive model] only showed statistically significant association between the control and the OPLL groups. The rest SNPs of ESR2 did not show any significant differences between the control and the OPLL groups. CONCLUSIONS: Estrogen receptor 2 (ESR2) gene polymorphisms (rs 1256049) was associated with OPLL. In future studies, we will perform target SNP chip between OPLL and candidate gene.
Digestion
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DNA
;
DNA Restriction Enzymes
;
Estrogen Receptor beta
;
Estrogens
;
Genetic Testing
;
Genotype
;
Haplotypes
;
Humans
;
Interleukin-1
;
Leukocytes
;
Longitudinal Ligaments
;
Male
;
Ossification of Posterior Longitudinal Ligament
;
Polymerase Chain Reaction
;
Polymorphism, Single Nucleotide
;
Receptors, Leptin
;
Spine
;
Succinimides
;
Transforming Growth Factors
;
Tumor Necrosis Factor-alpha