1.Percutaneous transluminal angioplsty in arteriosclerosis
Journal of the Korean Radiological Society 1984;20(4):754-760
Percutaneous transluminal angioplasty(PTA) is a non-operative therapeutic procedure to the dilation ofstenosis or to the recanalization of occlusion in artherosclesrotic atherosclerotic arteries using of dilatationcatheters. PTA was performed 37 times in 34 patients with arteriosclerosis for 1 year and 4 months from March.,1982 to June, 1983 at department of radiology, Klinikum Barmen/west Germany. The results were as follows; 1. Themale to female ratio was 2:1 and peak age range was from 61 to 70. 2. The most common indication was clinicalstage II b with 19 cases(51.3%) 3. PTA was performed most commonly in superficial femoral artery in 25cases(67.5%). 4. Acute major complication occurred in 2 cases(5.4%). PTA is a alternative or complementarytherapeutic procedure to vascular surgery.
Arteries
;
Arteriosclerosis
;
Female
;
Femoral Artery
;
Germany
;
Humans
2.A Study on the Serum Triglyceride Values in Children.
Sang Won CHA ; Young Hun CHUNG
Journal of the Korean Pediatric Society 1994;37(11):1519-1525
The concentration of serum triglyceride values were studied at department of pediatrics, Chungnam National University Hospital. With the total 742 cases, among them 462 boys and 280 girls who were at the age of 2 months through 15 years old. Serum triglycerde values were measured to determine the distribution of values and evaluated on the basis of sex, age, height and weight percentile. The following results were obtained: 1) The mean value of the serum triglycerides were 88.11+/-35.76 mg/dl in boys and 94.82+/-34.56 mg/dl in girls. 2) In distribution of trglyceride level by percentile, the value of 90th percentile was 136 mg/dl. 3) The values of the serum triglyceride from 6 to 11 year old age group were significant low values in boys and girls.
Adolescent
;
Child*
;
Chungcheongnam-do
;
Female
;
Humans
;
Pediatrics
;
Triglycerides*
3.Endotracheal Intubation Using Laryngeal Mask Airway in a Patient with a Difficult Airway: A case report.
Korean Journal of Anesthesiology 1998;35(5):988-992
Laryngeal mask airway (LMA) was designed as a new concept of airway management in anesthetic practice and has been successfully used in patients with difficult endotracheal intubation due to an abnormal upper airways. When It is in good position, one can cannulate the trachea either blindly or fiberoptic brochoscopically. In a patient with short neck and large breast, we were forced to use an emergency LMA because couldn't insert the laryngoscope. We decided to replace the LMA with an endotracheal tube to secure a definite airway. A fiberoptic bronchoscope was passed through both the endotracheal tube and the LMA to achieve endotracheal intubation. Then we attempted to remove the LMA for safe and smooth awakening. But the LMA coudln't be removed while keeping the LMA and the endotracheal tube in position. Therefore, surgery had to be proceeded with both the LMA and the endotracheal tube in place and all of which were removed after the surgical procedure. We conclude that the LMA is very useful as an aid of endotracheal intubation in patients with difficult airway.
Airway Management
;
Breast
;
Bronchoscopes
;
Emergencies
;
Humans
;
Intubation, Intratracheal*
;
Laryngeal Masks*
;
Laryngoscopes
;
Neck
;
Trachea
4.Clinical application of human embryonic stem cells.
Journal of the Korean Medical Association 2011;54(5):454-461
Recent advances in stem cell biology, including the development of optimized cell type-specific culture systems, and the broader understandings of biochemical and molecular signals involved in cell self-renewal and differentiation have brought cell-based therapy closer to practical application. As of now, at least 250 adult stem cell therapies are being used or tested in clinical situations. Stem cells have two important properties that distinguish them from other types of cells; they can both proliferate without changing their phenotypes indefinitely, and they also can differentiate into one or more new kinds of cells depending on their culture conditions. Thus, stem cell therapy could be most effective for treating the diseases that are marked by the loss of cells. The typical examples are Parkinson's disease, Alzheimer's disease, diabetes, heart failure, blindness, spinal cord injury, and stroke. Additionally, stem cell derivatives can be used in drug discovery as well. In the last decade, various types of stem cells have been identified from preimplantation stage embryos, fetuses, placentas, and adult tissues. Moreover, it is now almost a common practice to produce induced pluripotent stem (iPS) cells from various adult somatic cells using only a few defined factors. Thus, it is feasible that patient-specific stem cells will be generated with less controversy in the near future. However, human embryonic stem (ES) cells firmly remain "the gold standard" because of their greatest potential to become any type of cell in the body. The vast knowledge obtained from human ES cell research in the past decade has made cell-based therapy more promising than ever. Even the recent establishment of iPS cell technology is the culmination of human ES cells research. In our laboratory, interesting human cardiovascular cells including endothelial precursor cells and beating myocardiac cells, artificial blood cells, and retinal pigment epithelial cells were successfully differentiated and their therapeutic potential was confirmed after cell transplantation into animal models. Thus, here, the current research status of human embryonic stem cell-based therapy will be introduced and the future directions of stem cell applications in clinical trials will be discussed.
Adult
;
Adult Stem Cells
;
Alzheimer Disease
;
Artificial Cells
;
Biology
;
Blindness
;
Blood Cells
;
Cell Transplantation
;
Drug Discovery
;
Embryonic Stem Cells
;
Embryonic Structures
;
Epithelial Cells
;
Fetus
;
Heart Failure
;
Humans
;
Induced Pluripotent Stem Cells
;
Models, Animal
;
Parkinson Disease
;
Phenotype
;
Placenta
;
Retinaldehyde
;
Spinal Cord Injuries
;
Stem Cells
;
Stroke
;
Transplants
5.Fragile X Syndrome : Clinical Characteristics and EEG Findings.
Hee Jung CHUNG ; Kwang Eun CHA ; Sook Hwan LEE
Journal of the Korean Pediatric Society 1997;40(8):1110-1119
PURPOSE: Fragile X syndrome is an X-llinked genetic disorder and is characterized by mental retardation, learning disability, behavior disorder, and autism with typical elongated face, large ears, and macro-orchidism. Recent reports have focused attention on the EEG finding of this syndrome, which is a particular paroxysmal pattern during sleep (mono or diphasic centrotemporal spikes) and awake state (background slowing). In this study, we analyzed the clinical characteristics of fragile X syndrome patients and observed whether a particular EEG pattern is associated with this syndrome or not. METHODS: 7 cases of fragile X syndrome, diagnosed at Sowha Children's Hospital and Cha General Hospital from August 1993 to February 1995, were analyzed retrospectively in terms of typical phenotypes and clinical & EEG characteristics. The patients were diagnosed by Southern blotting and polymerase chain reaction (PCR) method. RESULTS: 1) The subjects were all male and the mean age was 5.8 years old (2Y-11Y). 2) Typical phenotype of long elongated face, macro-orchidism, large ears, and large head are noted in 2/3 of the subject. 3) Developmental delay, mental retardation, learning disability, attention deficit, hyperactivity, and autism are noted in 2/3 of the subject. 4) Seizure is noted in one case and EEG was performed in 6 cases, regardless of the presence of seizures. Abnormal findings including centrotemporal sharps and background slowing are noted in one case, each. 5) By molecular diagnostic methods including Southern blotting and PCR, 3 cases of affected male and 4 of normal transmitting male were diagnosed. CONCLUSIONS: 1) The typical phenotype of fragile X syndrome is long elongated face, macro-orchidism, large ears and large head. 2) The non-physical characteristics of fragile X syndrome are developmental delay, mental retardation, learning disability, attention deficit, hyperactivity, and autism. 3) The characteristic EEG findings of fragile X syndrome known by literature are noted in 2 among 6 cases, which means the specificity is high even though the sensitivity is low. This allows us to propose this EEG pattern as an important "marker" in the diagnosis of fragile X syndrome. However, the number of the subject is too small to conclude now. Further accumulation of cases is reguired.
Autistic Disorder
;
Blotting, Southern
;
Diagnosis
;
Ear
;
Electroencephalography*
;
Fragile X Syndrome*
;
Head
;
Hospitals, General
;
Humans
;
Intellectual Disability
;
Learning Disorders
;
Male
;
Pathology, Molecular
;
Phenotype
;
Polymerase Chain Reaction
;
Retrospective Studies
;
Seizures
;
Sensitivity and Specificity
6.Pattern of Distant Lymph Node Metastasis in Colorectal Carcinoma and its Correlation with Distant Organ Metastasis: CT Evaluation.
Sang Hoon CHA ; Cheol Min PARK ; In Ho CHA ; Kyoo Byung CHUNG ; Won Hyuck SUH
Journal of the Korean Radiological Society 1995;32(5):751-755
PURPOSE: To evaluate the pattern of distant lymph node metastasis in colorectal carcinoma and its correlation with distant organ metastasis. MATERIALS AND METHODS: We retrospectively reviewed abdominal CT scans of 46 patients with pathologically proven colorectal carcinoma. RESULTS: The incidence of distant lymphadenopathy in colorectal carcinoma was 30.4%(14/46). The most commonly involved distant lymph node was the left paraortic lymph node below the renal hilum(9/25). The most common type of distant lymphadenopathy was solitary type(7/14) and all of these lymphadenopathies were noted in the left paraortic lymph node below the renal hilum. Six cases of left sided colorectal carcinoma showed left paraortic lymphadenopathy with solitary type. The incidence of distant organ metastasis was 17. 4%(8/46) and markedly increased if distant lymphadenopathy was multiple and confluent, or confluent type(5/7). CONCLUSION: The incidence of distant lymphadenopathy in colorectal carcinoma was not high and the most common lymphadenopathy was the left paraaortic lymph node with solitary type below the renal hilum. The possibility of distant organ metastasis was high if distant lymphadenopathy was multiple and confluent, or confluent type.
Colorectal Neoplasms*
;
Humans
;
Incidence
;
Lymph Nodes*
;
Lymphatic Diseases
;
Neoplasm Metastasis*
;
Retrospective Studies
;
Tomography, X-Ray Computed
7.Reconstruction of the soft tissue defects for disral part of the tibia, ankle and foot using rectus abdominis muscle free flap.
Won Jae CHA ; Hoon Bum LEE ; Yoon Kyu CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1114-1124
No abstract available.
Ankle*
;
Foot*
;
Free Tissue Flaps*
;
Rectus Abdominis*
;
Tibia*
8.Clinical experience in marginal rotation.
Wha Sun CHUNG ; Chae Ju KIM ; Soon Cheol CHA
Yeungnam University Journal of Medicine 1992;9(1):23-28
Fifty-four marginal rotation procedures for cicatrical entropion and marginal entropion were performed in twenty-eight patients (8 males, 20 females). The age ranged from 4 to 74 years old (meant 51.1 years old). After the follow up periods of 6 to 48 months, excellent correction of the eyelid margin and good cosmetic appearance were noticed in most cases, but nine cases combined with severe trichiasis showed recurred trichiasis requiring reoperation.
Entropion
;
Eyelids
;
Follow-Up Studies
;
Humans
;
Male
;
Reoperation
;
Trichiasis
9.Clinical analysis of 98 patients undergoing concomitant cholecystectomy and exploration of the common bile duct.
Kyung Ho CHA ; Min CHUNG ; Tae Hoon LEE
Journal of the Korean Surgical Society 1991;40(2):185-192
No abstract available.
Cholecystectomy*
;
Common Bile Duct*
;
Humans
10.Study on absolute and relative refractory period of human sensoryfiber.
Hee Kyu KWON ; Cha Hwan KO ; Chung Hie OH
Journal of the Korean Academy of Rehabilitation Medicine 1991;15(1):6-11
No abstract available.
Humans*