1.CHANGES OF REFERRED SYMPTOMA FOLLOWING SURGICAL TREATMENT IN PATIENTS DIAGNOSED AS TMJ INTERNAL DERANGEMENT
Hyung Gon KIM ; Kwang Ho PARK ; Jong Ki HUH ; Hyun Joong YOON ; Ki Young KIM ; Kwang Hyun NAM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1999;21(1):48-53
Female
;
Follow-Up Studies
;
Headache
;
Humans
;
Incidence
;
Neck
;
Neck Pain
;
Shoulder Pain
;
Temporomandibular Joint
2.Ependymal Cysts.
Jae Gon MOON ; Ki Uk KIM ; Han Kyu KIM
Journal of Korean Neurosurgical Society 1999;28(9):1359-1365
The authors report four cases of ependymal cysts. Among the benign cystic lesions of neuroepithelial origin, ependymal cysts have been reportedly located in the cerebral parenchyme. This usually become symptomatic after 40 years of age, although it is generally thought to be congenital in origin. Symptomatic cases have been treated effectively with resection of the cyst or shunting procedures. Stereotactic removal of the cyst was also a good alternative as management in the authors' cases. Differential diagnosis is mandatory with other benign intraparenchymal cystic diseases.
Diagnosis, Differential
3.Effect of Carteolol Hydrochloride on Sodium-Potassium Activated ATPase in Cattle Lena Epithelial Cell Membrane.
Ki Hoon LEE ; We Gon CHANG ; Byung Nam KANG
Journal of the Korean Ophthalmological Society 1990;31(2):207-213
The effect of Carteolol hydrocholride on the Na-K ATPase of anterior capsule and epithelium of cattle lens has been investigated. The experiments were also designed to determine the action of Carteolol hydrochloride on the Na-K ATPase activity in anterior capsule and epithelium of cattle lens. The following results were observed. 1. The predominent location of Na-K ATPase was located in the epithelim and NaK ATPase was closely related with active trasport system of sodium and potassium in the lens epithelium. 2. The activity of Na-K ATPase of cattle lens epithelium was alomst totally inhibited by Ouabain. 3. Beta-adrenergic blocking agent(Carteolol hydrochloride) in the epithelium of cattle lens was shown to be actively transported by the ATPase. 4. The Na-K ATPase activity of cattle lens epithelium was inhibited by Carteolol hydrochloride.
Adenosine Triphosphatases*
;
Animals
;
Biological Transport, Active
;
Carteolol*
;
Cattle*
;
Epithelial Cells*
;
Epithelium
;
Membranes*
;
Ouabain
;
Potassium
;
Sodium
4.Correlation between Mirror Movements and Recovery of Motor Power in Stroke Patients.
Ki Jong PARK ; Nack Cheon CHOI ; Nam Gon KIM ; Hae Jeong YUN ; Joon Gy HONG ; Oh Young KWON ; Byeong Hoon LIM
Journal of the Korean Neurological Association 1998;16(6):794-801
BACKGROUND: Mirror movement is common in young children, and it could be seen in normal adults. Several mechanisms including motor pathway reorganization involved in motor recovery after stroke. Motor pathway reorganization has been reported to be a mechanism in several studies of patients with mirror movement. However, the correlation of motor recovery and mirror movement has been debated. We studied the degree of mirror movement in stroke patients compared with a controlled group to look into their relationship. METHODS: Our controls were 50 adults without neurologic symptoms and signs. The hemiparetic group was comprised 94 patients who had incurred unilateral brain lesion: 36 patients were acute stroke patients, 58 patients were chronic stroke patients. Mirror movements were assessed by three different tasks: abduction of thumb, sequential finger tapping, and grasping. We analyzed mirror movements in controls and patients, and tried to find a correlation between the degree of mirror movement and the recovery of motor power in chronic stroke patients. RESULTS: In controls, male exhibited more frequent mirror movement than female at specific tasks, and there was no difference between tasks of right or left hand. In stroke patients, there was more mirror movement in the nonparetic hand than in the paretic one during the movement of contralateral hand. In acute stroke, the frequency of mirror movement had no variability according to the degree of motor power. The recovery of motor power at a late stage was not correlated with the degree of mirror movement. Consclusions: Motor pathway reorganization seems to be insignificant for motor recovery because the degree of mirror movement was not correlated with the recovery of motor power in this study.
Adult
;
Brain
;
Child
;
Female
;
Fingers
;
Hand
;
Hand Strength
;
Humans
;
Male
;
Neurologic Manifestations
;
Stroke*
;
Thumb
5.A case of entrapped temporal horn of lateral ventricle caused by Pseudomonas stutzeri choroid plexitis.
Nam Gon KIM ; Oh Young KWON ; Ki Jong PARK ; Nack Cheon CHOI ; Byeong Hoon LIM
Journal of the Korean Neurological Association 1997;15(2):421-428
Focal ventricular dilatation of the temporal horn caused by an occlusion of the cerebrospinal fluid pathway at the atrium of the lateral ventricle is a form of non communicating hydrocephalus, and this condition is termed as "entrapment of the temporal horn". The choroid plexus is important central nervous system(CNS) structure, but it is often neglected in pathologic and clinical studies of intracranial diseases. Even though choroid plexitis is very rare, it may be occurred as the resultant of CNS infections and primary choroid plexitis can be associated with bacterial, viral, and parasitic etiologies. Some aspects of the neuroimaging findings of this infection mimick those of a intraventricular neoplasms. The most important neoplasms which should be differentiated, are choroid plexus papilloma and carcinoma. Wherem primary neoplasms of the choroid plexus are well known, but primary infections of the choroid plexus (such as choroid plexitis) are not commonly encountered. Pseudomonas stutzeri infections are especially rare as the causative organism of the choroid plexitis and often have serious underlying disease but generally respond well to treatment with antibiotics. We report a 65-year-old female patient with primary choroid plexitis due to Pseudomonas stutzeri and the findings of her brain computerized tomography and magnetic resonance imaging. In conclusion, our case revealed that choroid plexitis may result in ventricular entrapment and mimick intraventricular tumors. Although it is very rare, when a intraventricular mass was observed in imaging studies and combined with signs and symptoms suggesting CNS infection, choroid plexitis should be considered.
Aged
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Animals
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Anti-Bacterial Agents
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Brain
;
Cerebral Ventricle Neoplasms
;
Cerebrospinal Fluid
;
Choroid Plexus
;
Choroid*
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Dilatation
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Female
;
Horns*
;
Humans
;
Hydrocephalus
;
Lateral Ventricles*
;
Magnetic Resonance Imaging
;
Neuroimaging
;
Papilloma, Choroid Plexus
;
Pseudomonas stutzeri*
;
Pseudomonas*
6.A Double Mutation of the Ryanodine Receptor Type 1 Gene in a Malignant Hyperthermia Family with Multiminicore Myopathy.
Seul Ki JEONG ; Dong Chan KIM ; Yong Gon CHO ; Il Nam SUNWO ; Dal Sik KIM
Journal of Clinical Neurology 2008;4(3):123-130
BACKGROUND AND PURPOSE: At least 100 Ryanodine receptor type 1 (RYR1) mutations associated with malignant hyperthermia (MH) and central core disease (CCD) have been identified, but 2 RYR1 mutations accompanying multiminicore myopathy in an MH and/or CCD family have been reported only rarely. METHODS: Fifty-three members of a large MH family were investigated with clinical, histopathologic, RYR1 mutation, and haplotyping studies. Blood creatine kinase (CK) and myoglobin levels were also measured where possible. RESULTS: Sequencing of the entire RYR1 coding region identified a double RYR1 mutation (R2435H and A4295V) in MH/CCD regions 2 and 3. Haplotyping analysis revealed that the two missense heterozygous mutations (c.7304G>A and c.12891C>T) were always present on a common haplotype allele, and were closely cosegregated with histological multiminicores and elevated serum CK. All the subjects with the double mutation showed elevated serum CK and myoglobin, and the obtained muscle biopsy samples showed multiminicore lesions, but only two family members presented a late-onset, slowly progressive myopathy. CONCLUSIONS: We found multiminicore myopathy with clinical and histological variability in a large MH family with an unusual double RYR1 mutation, including a typical CCD-causing known mutant. These results suggest that multiminicore lesions are associated with the presence of more than two mutations in the RYR1 gene.
Alleles
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Biopsy
;
Clinical Coding
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Creatine Kinase
;
Haplotypes
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Humans
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Malignant Hyperthermia
;
Muscles
;
Muscular Diseases
;
Myoglobin
;
Myopathies, Structural, Congenital
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Myopathy, Central Core
;
Ophthalmoplegia
;
Ryanodine
;
Ryanodine Receptor Calcium Release Channel
7.A case of apraxia of lid opening in Wilson's disease.
Ki Jong PARK ; Oh Young KWON ; Nack Cheon CHOI ; Nam Gon KIM ; Tae Yon KIM ; Byeong Hoon LIM
Journal of the Korean Neurological Association 1997;15(5):1203-1207
Apraxia of lid opening is a nonparalytic motor abnormality characterized by difficulty in initiating the act of lid elevation. It has been reported in various extrapyramidal disorders(Parkinson's disease, Huntington's chorea, progressive supranuclear palsy), right middle cerebral infarction and Wilson's disease. We report a case of apraxia of opening in Wilson's disease, 34-year-old man was noted to have resting tremor and voluntary eye opening difficulty. Wilson's disease without Kayser-Fleisher ring was diagnosed by serum Cu, serum ceruloplasmin and liver biopsy. He was treated with D-penicillamine anticholinergics, amantadine, and levodopa.
Adult
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Amantadine
;
Apraxias*
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Biopsy
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Cerebral Infarction
;
Ceruloplasmin
;
Cholinergic Antagonists
;
Hepatolenticular Degeneration*
;
Humans
;
Huntington Disease
;
Levodopa
;
Liver
;
Penicillamine
;
Tremor
8.Post-Lumbar puncture headache: Does bed rest prevent the post-lumbar puncture headache?.
Jae Cheol KWON ; Nack Cheon CHOI ; Ki Jong PARK ; Nam Gon KIM ; Hae Jeong YUN ; Oh Young KWON ; Byeong Hoon LIM
Journal of the Korean Neurological Association 1997;15(5):1117-1124
BACKGROUND & OBJECTIVES: It is widely believed that the post-lumbar puncture headache(PLPH) is related to CSF leakage through the dural hole made by needle tract. So it is accepted that PLPH is prevented by at least 4 hour bed rest after lumbar puncture (LP). If bed rest was unneccessary, the administrative and nursing advantages would be obvious,, especially in neurologic units, whereLP has been done frequently. Therefore, we evaluate the incidence of PLPH in the ambulant and bed-rest patients prospectively and compared the incidence difference between two group. METHODS: Eighty-eight patients without preceding headache who were done lumbar puncture for diagnostic purpose were selected prospectively. We compared the incidence of PLPH between the ambulant (50 patients) and bed-rest group (38 patient,) at 6 hour and 24 hours. We also evaluated the effect of the CSF profile (count of RBC and WBC, protein level and opening pressure) on PLPH. RESULTS: The PLPH was found in 11 cases(12.5%) among bed-rest and ambulant groups. The frequency of each group was 8% (3/38) in bed-rest group and 16%(8/50) in ambulant group, but there is no significant difference between two groups (p-vaIue = 0.26). The frequency of PLPH is also not correlated to the CSF profiles; count of RBC and WBC, protein level, and opening pressure. CONCLUSIONS: There is no significant difference between the ambulant and bed rest group in the frequency of the PLPH. We conclude that the bed rest after LP is unnecessary for the prevention of the PLPH.
Bed Rest*
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Headache
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Humans
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Incidence
;
Needles
;
Nursing
;
Post-Dural Puncture Headache*
;
Prospective Studies
;
Punctures
;
Spinal Puncture
9.Simulation of the Cardiovascular System Using PID Control Model.
Byeong Cheol CHOI ; Chul Han KIM ; Ki Gon NAM ; Dong Keun JUNG ; Yun Jin KIM ; Ho Jong KIM ; Hyun Cheol LEE ; Soo Young YAE ; Do Un JEONG ; Gye Rok JEON
Journal of Korean Society of Medical Informatics 2004;10(4):367-377
OBJECTIVE: The electric analog circuit model can be used to analyse the various function of the cardio vascular system and the dynamic characteristics on each part of human body. According to the previous studies, viscous resistance, flow inertia, and vascular compliance in the cardiovascular system are analogous to resistance, inductance, and capacitance in electric circuit, so the cardiovascular system models have been represented by the electric circuit models. These approaches were to propose suitable models for the interested part of body and to simulate the various characteristics on the cardiovascular system. METHODS: This paper tried to put the characteristics of morphologic structure into the suggested electric circuit model. After setting parameter values of the model the dynamic characteristics of the cardio vascular system is simulated using VisSim, which is one of the simulation tools. RESULTS: The derived simulation results have represented major cardiovascular functions of normal adults. Also simulation results reflect the variation due to the pathophysiological state. CONCLUSION: The controller by baroreceptor, which is one of controllers to control the cardiovascular system, is appended in the model. The dynamic response characteristics and the procedure to restore blood pressure to normal state was observed by simulation lasted a certain period of bleeding.
Adult
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Blood Pressure
;
Cardiovascular System*
;
Compliance
;
Hemorrhage
;
Human Body
;
Humans
;
Pressoreceptors
10.Bone and Soft Tissue Changes after Two-Jaw Surgery in Cleft Patients.
Yung Sang YUN ; Ki Il UHM ; Jee Nam KIM ; Dong Hyeok SHIN ; Hyun Gon CHOI ; Soon Heum KIM ; Cheol Keun KIM ; Dong In JO
Archives of Plastic Surgery 2015;42(4):419-423
BACKGROUND: Orthognathic surgery is required in 25% to 35% of patients with a cleft lip and palate, for whom functional recovery and aesthetic improvement after surgery are important. The aim of this study was to examine maxillary and mandibular changes, along with concomitant soft tissue changes, in cleft patients who underwent LeFort I osteotomy and sagittal split ramus osteotomy (two-jaw surgery). METHODS: Twenty-eight cleft patients who underwent two-jaw surgery between August 2008 and November 2013 were included. Cephalometric analysis was conducted before and after surgery. Preoperative and postoperative measurements of the bone and soft tissue were compared. RESULTS: The mean horizontal advancement of the maxilla (point A) was 6.12 mm, while that of the mandible (point B) was -5.19 mm. The mean point A-nasion-point B angle was -4.1degrees before surgery, and increased to 2.5degrees after surgery. The mean nasolabial angle was 72.7degrees before surgery, and increased to 88.7degrees after surgery. The mean minimal distance between Rickett's E-line and the upper lip was 6.52 mm before surgery and 1.81 mm after surgery. The ratio of soft tissue change to bone change was 0.55 between point A and point A' and 0.93 between point B and point B'. CONCLUSIONS: Patients with cleft lip and palate who underwent two-jaw surgery showed optimal soft tissue changes. The position of the soft tissue (point A') was shifted by a distance equal to 55% of the change in the maxillary bone. Therefore, bone surgery without soft tissue correction can achieve good aesthetic results.
Cleft Lip
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Humans
;
Lip
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Mandible
;
Maxilla
;
Orthognathic Surgery
;
Osteotomy
;
Osteotomy, Le Fort
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Osteotomy, Sagittal Split Ramus
;
Palate