1.Autogeous Bone-Articular Cartilage stored within Abdominal Wall
Jang Suk CHOI ; Jeong Hyeon JO ; Jeong Hwan KIM
The Journal of the Korean Orthopaedic Association 1994;29(1):13-20
Articular cartilage can be damaged by trauma or by progressive degradation caused by disease. Unfortunately, it has a extremely limited capacity for repair and regeneration. The use of joint prosthesis has revolutionized but remains limited in its use. To know the possibility of clinical application of clinical application of autogenous bone-articular graft in open complicated intraarticular fractures we studied the change of bone-articular cartilage defect in medial femoral condyle of rabbits and viability of autogenous bone-articular graft stored within abdominal wall of rabbits. The results were obtained as follows: 1. There was over 90% viability of subchondral bone after 10 days storage in the adbominal wall but the articular cartilage showed degenerative change about 40% after 5 days passed. 2. The bone-articular defect was replaced by undifferentiated mesenchymal tissue and fibrous tissue, postoperative 6 weeks later. 3. In implanted bone-articular cartilage graft at 3 days, the chondrocyte of basal cell layer in articular cartilage was relatively well preserved but in 7 days, transplanted articular cartilage graft showed almost necrotic chage. Most of subchondral bones were well healed with host bone without regard to duration of implantation.
Abdominal Wall
;
Cartilage
;
Cartilage, Articular
;
Chondrocytes
;
Intra-Articular Fractures
;
Joint Prosthesis
;
Rabbits
;
Regeneration
;
Transplants
2.A Case of Meconium Peritonitis Diagnosed by Prenatal Ultrasonography.
Jeong Hwan HYEON ; Jeong Hyeon BAK ; Hong Wo LEE ; Gwang Jun AN ; Tae Sang KIM
Korean Journal of Obstetrics and Gynecology 2003;46(2):454-459
Meconium peritonitis is the chemical inflammation or foreign body reaction of peritoneum resulted from the prenatal bowel perforation associated with or without obstructive lesion during late intrauterine or early neonatal periods. Prenatal ultrasonographic findings of meconium peritonitis are intraperitoneal calcification, ascites, and pseudocyst. These provides the preparation for proper management which should reduce mortality and morbidity of neonate. We have experienced a case of meconium peritonitis in utero diagnosed by prenatal ultrasonography and present this case with a brief review of literatures.
Ascites
;
Foreign-Body Reaction
;
Humans
;
Infant, Newborn
;
Inflammation
;
Meconium*
;
Mortality
;
Peritoneum
;
Peritonitis*
;
Ultrasonography, Prenatal*
3.The efficacy of Kinesio taping in patients with a low back pain.
Cheol Hwan KIM ; Ae Ran KIM ; Myeong Il KIM ; Se Hyeon KIM ; Hee Jeong YOO ; Sang Hyeon LEE
Journal of the Korean Academy of Family Medicine 2002;23(2):197-204
BACKGROUND: Kinesio taping is a treatment for pain and dysfunction of musculoskeletal system, using tapes which have a similar elasticity to skin. This study was done to find out about the efficacy of kinesio taping on patients with a low back pain. METHODS: This study was performed in patients with a non-specific low back pain who had visited the Inchon International Airport Construction Authority Clinic from January 2000 to April 2000. We performed taping to a randomized case group and a placebo to control group during the first 3 days. After the first 3 days, we assessed the changes of improvement in low back pain with visual-analogue pain scale (VAS) . From the second visit on, we also started carrying out kinesio taping in the control group. RESULTS: The total number of patients participating in this study was 43, but 4 patients did not complete the study stopped. After the first 3 days, control group showed just 0.93 of the VAS score improvement, while randomized case group showed 2.55(p=0.003). The VAS score of case and control group were 3.18 and 3.03 respectively, which showed improvement at the end point of treatment compared with the first score. CONCLUSIONS: Kinesio taping was more efficacious than placebo in patients with a nonspecific low back pain.
Airports
;
Elasticity
;
Humans
;
Incheon
;
Low Back Pain*
;
Musculoskeletal System
;
Skin
4.De Ritis Ratio (Aspartate Transaminase/Alanine Transaminase) as a Significant Prognostic Factor With Upper Urinary Tract Carcinoma Who Underwent Radical Nephroureterectomy and Adjuvant Chemotherapy
Jee Hwan YOON ; Chang Wook JEONG ; Cheol KWAK ; Hyeon Hoe KIM ; Ja Hyeon KU ; Ji Hyeong YU ; Hyeong Dong YUK
Korean Journal of Urological Oncology 2022;20(1):34-42
Purpose:
To investigate the correlation between preoperative De Ritis ratio (aspartate transaminase [AST]/alanine transaminase [ALT]) and postoperative clinical outcome in patients with upper urinary tract carcinoma (UTUC) who underwent radical nephroureterectomy (RNU) and adjuvant chemotherapy (ACH).
Materials and Methods:
We respectively analyzed the clinical and pathological data of 102 patients who underwent RNU and ACH for UTUC. Patients were divided into 2 groups, according to the optimal value of AST/ALT ratio. The effect of the AST/ALT ratio was analyzed by the Kaplan-Meier method and Cox regression hazard models for patients’ cancer-specific survival (CSS) and overall survival (OS).
Results:
Mean survival time was 50.5±41.2 months. Mean age was 61.4±9.7years. Forty-one of the patients (46.5%) were in the high AST/ALT group. According to receiver operating characteristic analysis, the optimal AST/ALT ratio was 1.2. In Kaplan-Meier analyses, the high AST/ALT group showed worse outcomes in OS (p=0.007) and CSS (p=0.011). Using Cox regression models of clinical and pathological parameters to predict OS, high AST/ALT ratio (hazard ratio [HR], 5.428; 95% confidence interval [CI]; 1.803–16.334; p=0.002), pathological T3 (pT3) or higher (HR, 1.464; 95% CI; 1.156-1.857; p=0.002), and to predict CSS, high AST/ALT ratio (HR, 4.417; 95% CI; 1.545–12.632; p=0.005), and pT3 or higher (HR, 1.475; 95% CI; 1.172–1.904; p=0.002) were determined as independent prognostic factors.
Conclusions
Pretreatment AST/ALT ratio is a significant independent predictor of CSS and OS in advanced UTUC patients receiving systemic ACH after RNU.
5.Demographic Changes in Intensive Care Units in Korea over the Last Decade and Outcomes of Elderly Patients: A Single-Center Retrospective Study.
Jeong Uk LIM ; Jongmin LEE ; Jick Hwan HA ; Hyeon Hui KANG ; Sang Haak LEE ; Hwa Sik MOON
Korean Journal of Critical Care Medicine 2017;32(2):164-173
BACKGROUND: Aging is a significant issue worldwide, and Korea is one of the most rapidly aging countries. Along with the demographic transition, the age structure of intensive care unit (ICU) patients changes as well. METHODS: The aim of this study was to analyze the change in age distribution of the ICU patients over the last 10 years and its effect on clinical outcomes. Single-center, retrospective analysis of all patients aged ≥18 years admitted to either the medical or surgical ICU at St. Paul's Hospital, The Catholic University of Korea, between January 2005 and December 2014 was conducted. For clinical outcome, in-hospital mortality, duration of ICU stay, and hospital stay were analyzed. Cost analysis was performed to show the economic burden of each age strata. RESULTS: A total of 10,366 ICU patients were admitted to the chosen ICUs during the study period. The proportion of elderly patients aged ≥65 years increased from 47.9% in 2005 to 63.7% in 2014, and the proportion of the very elderly patients aged ≥80 years increased from 12.8% to 20.7%. However, this increased proportion of elderly patients did not lead to increased in-hospital mortality. The percent of ICU treatment days attributable to elderly patients increased from 51.1% in year 2005 to 64.0% in 2014. The elderly ICU patients were associated with higher in-hospital mortality compared to younger age groups. CONCLUSIONS: The proportion of elderly patients admitted to ICUs increased over the last decade. However, overall in-hospital mortality has not increased during the same period.
Age Distribution
;
Aged*
;
Aging
;
Costs and Cost Analysis
;
Critical Care*
;
Hospital Mortality
;
Humans
;
Intensive Care Units*
;
Korea*
;
Length of Stay
;
Mortality
;
Population Dynamics
;
Retrospective Studies*
6.Study on tumor-associated antigens expressed on the lymphocytes from cattle infected with bovine leucosis virus by using monoclonal antibody.
Moo Hyung JUN ; Duck Hwan KIM ; Young Do CHOI ; Young Sung CHO ; Jeong Woo PARK ; Jong Hyeon PARK
Journal of the Korean Society of Virology 1992;22(2):129-138
No abstract available.
Animals
;
Cattle*
;
Lymphocytes*
7.The Authors Reply: Should Very Old Patients Be Admitted to the Intensive Care Units?.
Jeong Uk LIM ; Jongmin LEE ; Jick Hwan HA ; Hyeon Hui KANG ; Sang Haak LEE ; Hwa Sik MOON
Korean Journal of Critical Care Medicine 2017;32(4):377-379
No abstract available.
Intensive Care Units
;
Sepsis
;
Critical Illness
;
Chronic Disease
;
Hospital Mortality
8.A Case of Behcet's Syndrome with Superior Vena Cava Obstruction and Massive Pericardial Effusion.
Kil Hyeon CHO ; Jeong Hyun PARK ; Seung Hwan RYOO ; Hong Ok RYOO ; Dong Soo KIM ; Kyung Soon LEE
Korean Circulation Journal 1994;24(5):726-731
Behcet's syndrome has been known as multisystemic disease caused by nonspecific immune mediated vasculitis, but it's precise etiology is not yet identified. Among the various systemic manifestations, pericardial effusion is extremely rare, and pericardial tamponade caused by massive pericardial effusion in Behcet'sydrome has not been reported in the literature. We report a case of Behcet's syndrome manifested as SVC syndrome due to SVC and right atrial thrombus with massive pericardial effusion resulting cardiac tamponade with the review of the literature.
Behcet Syndrome*
;
Cardiac Tamponade
;
Pericardial Effusion*
;
Superior Vena Cava Syndrome*
;
Thrombosis
;
Vasculitis
;
Vena Cava, Superior*
9.Effects of Melatonin on Fine Structures and Extracellular Matrix Proteins of Cancer Cell Lines.
Eon Ki SUNG ; Hyeon Gyoo JEONG ; In Hwan SONG ; Joo Young KIM ; Yungchang LEE
Korean Journal of Anatomy 1999;32(2):199-210
Melatonin could be used as an anticancer agent to suppress the proliferation of tumor cells and induce the differentiation of cancer cells. HeLa, HepG2, A549, L929, and NIH/3T3 cell lines were cultivated in alpha-MEM with 0.2 mM/2 mM melatonin. The influences of melatonin on quantitative changes of glycoprotein, fibronectin, laminin and actin related to the metastasis of tumor cells investigated with PAS or PAP at light microscopic level. To elucidate the possibility of antitumor actions of melatonin, the changes of cell organelles were observed under transmission electron microscope. Cell proliferation was suppressed after treatment with 2 mM melatonin for 2 or 3 days. Compared with control groups, the amounts of glycoprotein, fibronectin, laminin and actin in all cell lines at 1st, 2nd and 3rd day after treatment with 0.2 mM and 2 mM melatonin were generally increased. Heterochromatin in the nucleus formed clumps in all cell lines at 2nd and 3rd day after treatment with 0.2 mM and 2 mM melatonin. The numerical increase of rough endoplasmic reticulum and golgi complex observed in HeLa and L929 cells treated with 0.2 mM and 2 mM melatonin at 1st, 2nd and 3rd day. The number of lysosomes increased in HeLa, A549, and L929 cells treated with 0.2 mM and 2 mM melatonin at 3rd day. The number of vesicles increased in all cell lines treated with 0.2 mM and 2 mM melatonin at 1st, 2nd and 3rd day. Taken together, antimitotic effect of melatonin can be expected at least 2day after treatment with 2 mM melatonin. The production of fibronectin and laminin in all cell lines treated with 0.2 mM or 2 mM melatonin increased. Therefore, the increase of amounts of extracellular matrix proteins in the extracellular space can be expected. And the increase of amounts of actin connected to the extracellular matrix proteins through the integrin of plasma membrane seemed to strengthen cell attachment. In order to metastasize of cancer cells, it is important for them to secrete various enzymes to pass through the extracellular matrix proteins. Hence, it will be more difficult for the cells to metastasize into other regions due to the increase of the extracellular matrix proteins. It was postulated that the clumps of heterochromatin and the numerical increase of vesicles induced by treatment with 0.2 mM and 2 mM melatonin could be represented for the actions of melatonin as morpholgical criteria.
Actins
;
Cell Line*
;
Cell Membrane
;
Cell Proliferation
;
Endoplasmic Reticulum, Rough
;
Extracellular Matrix Proteins*
;
Extracellular Matrix*
;
Extracellular Space
;
Fibronectins
;
Glycoproteins
;
Golgi Apparatus
;
Heterochromatin
;
Laminin
;
Lysosomes
;
Melatonin*
;
Neoplasm Metastasis
;
Organelles
10.Kallmann's Syndrome Associasted with Slipped Capital Femoral Epiphysis
Hyeon Jeong JEON ; Byeong Seong KO ; Do Hyeong KIM ; Jang Hwan BAE ; TGae Geun OH ; Seung Baek KANG
Journal of Korean Society of Endocrinology 1996;11(3):318-323
The Kallmanns syndrome is the most common form of isolated hypogonadotropic hypogonadism in which anosmia or hyposmia resulting from agenesis of hypoplasia of the olfactory lobes is associated with LHRH deficiency, This syndrome is genetically heterogeneous and can be trans-mitted as an X-linked, autosomal dominant or autosomal recessive trait. The hypogonadotropic hypogonadism results in absent or incomplete pubertal development and may be associated with anosmia or hyposmia, mid-line defect(color blindness, cleft-lip or
Blindness
;
Cryptorchidism
;
Epiphyses
;
Femur Neck
;
Gonadotropin-Releasing Hormone
;
Growth Plate
;
Head
;
Humans
;
Hypogonadism
;
Kallmann Syndrome
;
Male
;
Olfaction Disorders
;
Olfactory Cortex
;
Slipped Capital Femoral Epiphyses