2.The Clinical Follow-up Study on Total Hip Replacement
Seung Ho YUNE ; Kwang Zin LEE ; Jun Kyu LEE ; Kwan Ki YOON ; Woo Soon YIM
The Journal of the Korean Orthopaedic Association 1983;18(2):261-268
Total Hip Replacement is well documented and widely used procedure for painful arthritic hip in past two decades and each year still seems to be increased in numher of total hip replacement. And recently, there is a few reports of follow-up study on total hip arthroplasty in our country. The aim of this study was to present the clinical material which was performed on 27 hips of 21 patients who were treated at Dept. of Orthopedic Surgery. College of Medicine, Chungnam university from jan, 1979 to Jan. 1982. The longest follow up was 4 years, shortest was 8 months, average time was 2 years and 8months The results were obtained as follow; 1. The age incidence ranged from 26 to 69 years old, and average were 47 years old. 2. There were 17 males (81%) and 4 females (19%). 3, The causes of hip disease were mostly avascular necrosis of the femoral head (67%). 4, The most commonly used prosthesis were Muller type with trochanteric ostcotomy approaches. 5. Several complications were found: perforation of acetabulum with bone cenent in pelvis, postperative pneumonia wire breakage and painful bursitis around the trochanteric area which was on osteotomy sites. 6. Postoperative functional evaluation was evaluated by method of d'Aubigne and Postel, and improved from 10.0 scores to 15.8 scores. Relief of the pain is the most effect of the total hip replacement in this study, But case are not enough to more detail evaluation, especially, the problem of loosening of stem, acetabular cup wearing and heterotopic bone formation after total hip replacement.
Acetabulum
;
Arthroplasty, Replacement, Hip
;
Bursitis
;
Chungcheongnam-do
;
Female
;
Femur
;
Follow-Up Studies
;
Head
;
Hip
;
Humans
;
Incidence
;
Male
;
Methods
;
Necrosis
;
Orthopedics
;
Osteogenesis
;
Osteotomy
;
Pelvis
;
Pneumonia
;
Prostheses and Implants
3.Klebsiella pneumoniae Brain Abscess and Endophthalmitis after Acute Epiglottitis
Soo Hwan YIM ; Yuseok KIM ; Jun Yeong HONG ; Sang-Jun NA
Journal of the Korean Neurological Association 2020;38(2):124-128
Klebsiella pneumoniae is an unusual cause of brain abscess. Among the few cases of Klebsiella pneumoniae brain abscess that have been reported, most were associated with another underlying primary focus of infection. Endogenous endophthalmitis caused by Klebsiella pneumoniae is an infrequent but often devastating septic metastatic infection. We report a rare case of Klebsiella pneumoniae brain abscess and endophthalmitis after acute epiglottitis.
4.The Role of Pericranial Flap in Surgery of Craniosynostosis.
Jun Hee BYEON ; Young Min YIM ; Gyeol YOO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2005;32(2):189-193
Reconstruction of calvarial bone defects from congenital anomaly or from bone loss due to traumatic or neoplastic processes remains a significant problem in craniofacial surgery and neurosurgery. To facilitate bone regeneration, there have been many trials such as autologous bone graft or allograft, and the addition of demineralized bone matrix and matrix-derived growth factor. Guided bone regeneration is one of the methods to accelerate bone healing for calvarial bone defects especially in children. Pericranium is one of the most usable structure in bone regeneration. It protects the dura and sinus, and provides mechanical connection between bone fragments. It supplies blood to bone cortex and osteoprogenitor cells and enhances bone regeneration. For maximal effect of pericranium in bone regeneration, authors used pericranium as a flap for covering calvarial defects in surgeries of 11 craniosynostosis patients and achieved satisfactory results: The bone regeneration of original cranial defect in one year after operation was 74.6%(+/-8.5%). This pericranial flap would be made more effectively by individual dissection after subgaleal dissection rather than subperiosteal dissection. In this article, we reviewed the role of pericranium and reported its usefulness as a flap in surgery of craniosynostosis to maximize bone regeneration.
Allografts
;
Bone Matrix
;
Bone Regeneration
;
Child
;
Craniosynostoses*
;
Equipment and Supplies
;
Humans
;
Neoplastic Processes
;
Neurosurgery
;
Transplants
5.The Diagnostic Accuracy of Multidetector Row CT for Evaluating the Axillary Lymph Nodes in Patients with Breast Cancer.
Doo Kyung KANG ; Jun Man KIM ; Hyunee YIM
Journal of the Korean Radiological Society 2007;57(2):187-196
PURPOSE: We investigated the CT (computed tomography) findings of metastatic lymph nodes (LNs), and we analyzed the diagnostic performance of multidetector row CT (MDCT) for detecting axillary LN metastases in patients with breast cancer. MATERIALS AND METHODS: We investigated 59 patients who preoperatively underwent chest MDCT, and they underwent sentinel LN biopsy or whole axillary LN dissection. We analyzed the morphologic features, the degree of enhancement and the delayed enhancement pattern. We classified the patients into the non-metastatic LN group and the metastatic LN group, and we calculated the diagnostic performance of MDCT for detecting metastatic LNs. RESULTS: When both the morphologic and quantitative criteria were consistent, the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were 58.1%, 100%, 100% and 68.3%, respectively, and MDCT accurately detected metastatic LNs in 2 patients that were false negative on sentinel LN biopsy. When the morphologic and quantitative criteria were consistent, the sensitivity, specificity, PPV and NPV were 87.1%, 53.6%, 67.5% and 78.9%, respectively. However, MDCT could not detect metastatic LNs, including two micrometastases (a total of 8 micrometastases) that were in each of four patients. CONCLUSION: MDCT can be used to perform the morphology and quantitative analysis of axillary LNs, and this modality has excellent specificity and a PPV for detecting metastatic LNs when the both of the diagnostic criteria are consistent.
Axilla
;
Biopsy
;
Breast Neoplasms*
;
Breast*
;
Humans
;
Lymph Nodes*
;
Lymphatic System
;
Neoplasm Metastasis
;
Neoplasm Micrometastasis
;
Sensitivity and Specificity
;
Thorax
;
Tomography, X-Ray Computed
6.Acute toxicity assessment of camphor in biopesticides by using Daphnia magna and Danio rerio.
Eun Chae YIM ; Hyeon Joe KIM ; Seong Jun KIM
Environmental Health and Toxicology 2014;29(1):e2014008-
OBJECTIVES: An ecofriendly alternative to chemical pesticides is bio-pesticides, which are derived from natural sources. The interest in bio-pesticides is based on the disadvantages associated with chemical pesticides. METHODS: We conducted acute toxicity assessments of camphor, a major component of bio-pesticides, by using Daphnia magna (D. magna) as well as assessed the morphological abnormalities that occurred in Danio rerio (D. rerio) embryos. RESULTS: The median effective concentration of camphor on D. magna after 48 hours was 395.0 muM, and the median lethal concentration on D. rerio embryos after 96 hours was 838.6 muM. The no observed effect concentration and predicted no effect concentration of camphor on D. magna, which was more sensitive than D. rerio, were calculated as 55.2 muM and 3.95 muM, respectively. Morphological abnormalities in D. rerio embryos exposed to camphor increased over time. Coagulation, delayed hatching, yolk sac edema, pericardial edema, and pigmentation of embryos mainly appeared between 24 and 48 hours. Further, symptoms of scoliosis and head edema occurred after 72 hours. In addition, bent tails, ocular defects and collapsed symptoms of fertilized embryonic tissue were observed after 96 hours. CONCLUSIONS: The camphor toxicity results suggest that continuous observations on the ecosystem are necessary to monitor toxicity in areas where biological pesticides containing camphor are sprayed.
Camphor*
;
Daphnia*
;
Ecosystem
;
Edema
;
Embryonic Structures
;
Head
;
Pesticides
;
Pigmentation
;
Scoliosis
;
Yolk Sac
;
Zebrafish*
7.A Case of Cughing's Disease which Responded to the Combined Treatment of Ketoconazole and Octreotide.
Chan Soo SHIN ; Chang Hoon YIM ; Jae Jun KOH ; Sung Yeon KIM ; Bo Yeon CHO ; Hong Gyu LEE
Journal of Korean Society of Endocrinology 1998;13(1):94-98
The treatment of choice for Cushing's disease is surgical removal of tumor, the source of ACTH overproduction. In occasional patients in whom a surgical approach including total adrenalectomy is not feasible or surgical removal of tumor is not complete, medical treatment may be necessary because pituitary irradiation requires a long 1ag time to remission. Although ketoconazole, an imidazole derivative with inhibitory activity on adrenal steroidogenesis has been reported to be effective in the treatment of Cushing's disease, the limited effectiveness in lowering very high level of cortisol and occasional hepatotoxicity restrains its wide use. In this report, we describe a woman with Cushing's disease due to pituitary microadenoma. Transsphenoidal pituitary adenomeetomy followed by ketoconzole treatment had been unsuccessful in achieving remission of the disease, but combined treatment with ketoconazole and octreotide accomplished successful reduction in cortisol production.
Adrenalectomy
;
Adrenocorticotropic Hormone
;
Female
;
Humans
;
Hydrocortisone
;
Ketoconazole*
;
Octreotide*
;
Pituitary Irradiation
8.Copy Number Variations in the Human Genome: Potential Source for Individual Diversity and Disease Association Studies.
Tae Min KIM ; Seon Hee YIM ; Yeun Jun CHUNG
Genomics & Informatics 2008;6(1):1-7
The widespread presence of large-scale genomic variations, termed copy number variation (CNVs), has been recently recognized in phenotypically normal individuals. Judging by the growing number of reports on CNVs, it is now evident that these variants contribute significantly to genetic diversity in the human genome. Like single nucleotide polymorphisms (SNPs), CNVs are expected to serve as potential biomarkers for disease susceptibility or drug responses. However, the technical and practical concerns still remain to be tackled. In this review, we examine the current status of CNV DBs and research, including the ongoing efforts of CNV screening in the human genome. We also discuss the characteristics of platforms that are available at the moment and suggest the potential of CNVs in clinical research and application.
Coat Protein Complex I
;
Disease Susceptibility
;
Genetic Variation
;
Genome, Human
;
Humans
;
Mass Screening
;
Polymorphism, Single Nucleotide
;
Biomarkers
9.Copy Number Variations in the Human Genome: Potential Source for Individual Diversity and Disease Association Studies.
Tae Min KIM ; Seon Hee YIM ; Yeun Jun CHUNG
Genomics & Informatics 2008;6(1):1-7
The widespread presence of large-scale genomic variations, termed copy number variation (CNVs), has been recently recognized in phenotypically normal individuals. Judging by the growing number of reports on CNVs, it is now evident that these variants contribute significantly to genetic diversity in the human genome. Like single nucleotide polymorphisms (SNPs), CNVs are expected to serve as potential biomarkers for disease susceptibility or drug responses. However, the technical and practical concerns still remain to be tackled. In this review, we examine the current status of CNV DBs and research, including the ongoing efforts of CNV screening in the human genome. We also discuss the characteristics of platforms that are available at the moment and suggest the potential of CNVs in clinical research and application.
Coat Protein Complex I
;
Disease Susceptibility
;
Genetic Variation
;
Genome, Human
;
Humans
;
Mass Screening
;
Polymorphism, Single Nucleotide
;
Biomarkers
10.Current Status of Molecular Targeted Therapies in Hepatocellular Carcinoma.
The Korean Journal of Gastroenterology 2013;61(3):136-146
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer death in Korea. Curative treatment is only possible when the disease is diagnosed at the early stage. The prognosis of patients with HCC is even dismal in advanced stages. No systemic cytotoxic chemotherapy has proven to be beneficial in overall survival. Recently, the understanding of the molecular pathogenesis led to the development of new therapies. With the evidence of dysregulation of critical genes associated with cellular proliferation, growth factor signaling, cell cycling, apoptosis, and angiogenesis in HCC, a number of molecular target agents are under clinical trials. Sorafenib is the first systemic anticancer drug which has proven to gain survival benefit in the global as well as Asia-Pacific trials. However, the survival gain is still modest, and further efforts to improve outcomes in patients with HCC are necessary by developing novel drugs or combining other forms of therapies. This article will review signaling pathways in HCC and introduce molecular target agents under investigation currently.
Antineoplastic Agents/therapeutic use
;
Carcinoma, Hepatocellular/*drug therapy/metabolism/pathology
;
Humans
;
Liver Neoplasms/*drug therapy/metabolism/pathology
;
Mitogen-Activated Protein Kinase Kinases/antagonists & inhibitors/metabolism
;
Molecular Targeted Therapy
;
Niacinamide/analogs & derivatives/therapeutic use
;
Phenylurea Compounds/therapeutic use
;
Protein Kinase Inhibitors/therapeutic use
;
Proto-Oncogene Proteins c-akt/antagonists & inhibitors/metabolism
;
Receptor, IGF Type 1/antagonists & inhibitors/metabolism
;
Signal Transduction
;
TOR Serine-Threonine Kinases/antagonists & inhibitors/metabolism
;
Wnt Proteins/antagonists & inhibitors/metabolism