1.The activity of antimelanocyte autoantibodies in vitiligo patients.
Yoon Kee PARK ; Seung Kyung HANN ; Min Seok SONG ; Jung Ku YOON ; Hyung Il KIM
Korean Journal of Dermatology 1991;29(3):391-398
Several observation suggest that the antimelanocyte autoantibodies could play a role in melanocyte destruction. Some experiments indicate that melanocyte antibodies from patients with vitiligo can kill melanocyte in vitro. In these experiments, we demonstrated that vitiligo patient's sera containing antimelanocyte antibodies can lyse cultured human melanocytes by complement activation. Melanocyte cytotoxicity was measured using the ethidium bromide/ acridine orange viability assay. Significant melanocyte cytotoxicity was seen in sera from patients with both active and inactive vitiligo(p<0.01). Melanocyte cytotoxicity measured with complement-mediated cytotoxicity decreased after systemic steroid treatment(p<0.05) ; however melanocyte cytotoxicity showed no significant change with systemic PUVA therapy.
Acridine Orange
;
Antibodies
;
Autoantibodies*
;
Complement Activation
;
Ethidium
;
Humans
;
Melanocytes
;
PUVA Therapy
;
Vitiligo*
3.A statistical Observation on Growth Pattern of Low birth Weight infants.
Jung In SHIN ; Sang Hyup KIM ; Chong Ku YOON
Journal of the Korean Pediatric Society 1977;20(5):357-364
The author have statistically observed growth pattern of LBW infants born at NMC obstetric ward for 4 years form Jan. 1972 rtrough Dec, 1975. LBW infants were divided ino 2 groups, preterm and small-for-date infants and compared with normal full-term delivered infants group for height and weight. Following results were obtained 1) As compared with NFD infants group, preterm infants group revealed ststistically meaningful difference in height and weight until 5-6 months of age. Thereafter no difference was noticed. But, SFD group showed difference in height and weight until 1 year of age. 2) Preterm infants group was found to have a greater growth velocity than SFD group in 4-7 months of age, SFD group showed relatively similar increment of height and weight with NFD group. 3) Mean heght and weight of LBW infants were below NFD gronp until 1 year of age. Growth velocity ws similar with NFD group, so handicaps of LBW infants were not overcome statistically during 1 year after birth.
Humans
;
Infant*
;
Infant, Low Birth Weight*
;
Infant, Newborn
;
Infant, Premature
;
Parturition
4.Blood Pressure Change in the Neonates during Abdominal Examination.
Young Sun KIM ; Yoon Deok KIM ; Son Moon SHIN ; Jung Hwan CHOI ; Chong Ku YUN
Journal of the Korean Pediatric Society 1987;30(11):1201-1206
No abstract available.
Blood Pressure*
;
Humans
;
Infant, Newborn*
5.A Case of Krabbe Disease.
Journal of the Korean Child Neurology Society 2001;9(2):411-415
Krabbe disease is an autosomal recessive neurodegenerative disorder that affects both the central and peripheral nerve system due to an enzymatic defect of galactocerebroside bata-galactosidase. The patient had typical clinical features of Krabbe disease, with irritability, hypertonicity, failure to thrive, and opisthotonic posturing. A brain MRI demonstrates profound white matter demyelination. The diagnosis of Krabbe disease is suspected on the basis of clinical pictures and confirmed by finding markedly reduced galactocerebroside bata-galactosidase activity in leukocyte or cultured fibroblast. Here we present the first reported case of Krabbe disease in Korea confirmed by decreased activity of galactocerebroside bata-galactosidase enzyme in leukocyte.
Brain
;
Demyelinating Diseases
;
Diagnosis
;
Failure to Thrive
;
Fibroblasts
;
Humans
;
Korea
;
Leukocytes
;
Leukodystrophy, Globoid Cell*
;
Magnetic Resonance Imaging
;
Neurodegenerative Diseases
;
Peripheral Nerves
6.Coronary Stent Implantation for Restenosis after PTCA.
Won Heum SHIM ; Jung Han YOON ; Tack Jong HONG ; Woong Ku LEE
Korean Circulation Journal 1991;21(3):598-605
We report the implantation of a balloon-expandable intravascular stent at proximal left anterior decending artery in a patients suffered from Canakian functional class III angina for 8 years. The patient received 3 times percutaneous transluminal coronary angioplasty at proximal left anterior descending and circumflex artery without benefits. Repeated angiography revealed restenosis at proximal left anterior descending artery. Atherectomy was tried with transluminal extraction catheter(TEC) with luminal dissection and coronary bypass graft followed. occluded vein grafts were defined by follow-up angiography and chest pain recurred. No residual stenosis or thrombosis was documented in 24 hour follow-up angiography and the patient was discharged without symptom at 10 days after stenting.
Angiography
;
Angioplasty, Balloon, Coronary
;
Arteries
;
Atherectomy
;
Chest Pain
;
Constriction, Pathologic
;
Follow-Up Studies
;
Humans
;
Phenobarbital
;
Stents*
;
Thrombosis
;
Transplants
;
Veins
7.A Clincal Study of Type IIIc Open fracture of the Forearm
Hyung Ku YOON ; Kwang Pyo JEON ; Kuk Hwan OH ; Dong Jun KIM ; Young Jin JUNG
The Journal of the Korean Orthopaedic Association 1990;25(4):1089-1096
In 1984, Gustilo subgrouped type III open fracture into III a, III b and III c according to the severity, soft tissue damage and vascular injury. Type III c open fracture presents serious problems especially possible amputation due to vascular insufficiency, so emergency vascular surgery with bone fixation by using plate, IM nail fixator is mandatory. We reviewed 10 cases of type III c open fracture of the forearm and evaluated the bone healing process according to fixation method, intramedullary nailing and plating treated at Orthopaedic Department of Sung-Ae General Hospital from Feb. 1986 to Aug. 1988. The folliwing results were obtained: l. All cases were industrial accidents, 9 cases in right, and the mean age was 24.1 ranging from 17 to 34. 2. There were 4 cases of the radial & ulnar artery rupture and 6 cases of the radial artery rupture, 7 cases were treated end to end anastomosis and 3 cases with vein graft. 3. The fracture level of ulna & radius was same in all cases, 7 cases in distal one-third, 2 cases in middle one-third and 1 case in proximal one-third. 4. The average time of union was 14.1 weeks in the radius and 14.5 weeks in the ulna. 5. The fixation methods were plating in 7 cases and IM nailing in 3 cases. 6. The complications were non-union in 1 case, osteomyelitis in 2 cases and refracture in 1 case. 7. The functional result was excellent in 1 case, satisfactory in 3 cases, unsatisfactory in 5 cases, and failure in 1 case according to the rating system of Anderson.
Accidents, Occupational
;
Amputation
;
Emergencies
;
Forearm
;
Fracture Fixation, Intramedullary
;
Fractures, Open
;
Hospitals, General
;
Methods
;
Osteomyelitis
;
Radial Artery
;
Radius
;
Rupture
;
Transplants
;
Ulna
;
Ulnar Artery
;
Vascular System Injuries
;
Veins
8.A Clinical Study of closed Flexible IM Nail for Fractures of Distal one
Hyung Ku YOON ; Kwang Pyo JEON ; Kuk Hwan OH ; Dong Jun KIM ; Ki Dong JUNG
The Journal of the Korean Orthopaedic Association 1990;25(5):1310-1316
Fractures of the tibia are frequently encountered in mordern civilized society. Especially, those in distal 1/3 of the tibia have so many problems, such as angular deformity, osteomyelitis and nonunion because of anatomically scanty soft tissue. Many modalities of the treatment of fracture of distal 1/3 of the tibia were introduced. Among them, interlocking IM nailings were considered as one of the best modality. But, in interlocking IM nail, reaming of the medullary canal which destroys the endosteal circulation and causes thermal necrosis of the inner aspect of the cortical bone results in delayed union. And also, procedure for distal screw fixation is difficult and time-consuming. As for using flexible IM nails for fractures of distal 1/3 of the tibia, it was considered as not so satisfactory method due to lack of stability of fixation. However, the stability of fixation can be strengthened with fanning of the nails in distal fragment, using more than 3 nails and delay the protected weight bearing. Authors studied 25 cases of fractures of distal 1/3 of the tibia treated with closed flexible IM nailing at Sung Ae General Hospital, from July., 1987 to July., 1989, and obtained following results: 1. Among 25 cases, 4th decades were most common and males were more commonly involved. 2. Traffic accidents were the most common causes of injury and majority of 16 open fractures and 19 comminuted fractures, were caused by high energy mechanism. Among open fractures, type II were most common. 3. Two angular deformities less than 10 degrees, one proximal migration and one checkrein deformity were observed as complications, but, no clinically significant complications were noted. 4. The time for radiological union were 14.5 weeks in group without fibular fracture and 15.1 weeks in group with fibular fracture, and 14.0 weeks in closed fracture group and 17.2 weeks in open fracture group, and average in 15.6 weeks.
Accidents, Traffic
;
Clinical Study
;
Congenital Abnormalities
;
Fractures, Closed
;
Fractures, Comminuted
;
Fractures, Open
;
Hospitals, General
;
Humans
;
Male
;
Methods
;
Necrosis
;
Osteomyelitis
;
Tibia
;
Weight-Bearing
9.Treatment of Complex Supracondylar Fractures of the Femur with External Fixation
Hyung Ku YOON ; Kwang Pyo JEON ; Dae Eun JUNG ; Ho Seung JEON ; Kye Sung LEE
The Journal of the Korean Orthopaedic Association 1994;29(6):1605-1613
The authors report the clinical results of ten cases of complex supracondylar fractures treated by external fixation with a mean follow up of 21 months. Six cases were closed comminuted fracture, and four cases were open fractures. By AO classification six cases were type C2, two type C3, one type Al, and one type A3. Four cases had associated vascular injury. Reduction was performed by closed method in eight cases, and two cases were reduced through open wound. All cases healed at average of 142 days. Final healing of all cases occurred with an average range of motion of 3°-119° except one case which required reapplication due to infected nonunion with a gap. In nine cases of the ten functional results were rated as "good", and one case was "fair" by Iowa Knee Rating Scale. In conclusion, definitive external fixation can be a good alternative treatment modality despite previous recommendations to limit external fixation to temporary application in cases of limb salvage, such as severe comminution or pre-existing infection.
Classification
;
External Fixators
;
Femur
;
Follow-Up Studies
;
Fractures, Comminuted
;
Fractures, Open
;
Iowa
;
Knee
;
Limb Salvage
;
Methods
;
Range of Motion, Articular
;
Vascular System Injuries
;
Wounds and Injuries
10.Early MRI Finding of Femoral Head in Traumatic Hip Dislocation.
Hyung Ku YOON ; Kwang Pyo JEON ; Dae Eun JUNG ; Hoe Seung JEON ; Ji Ung YANG
The Journal of the Korean Orthopaedic Association 1997;32(3):565-572
Traumatic dislocation of the hip presents serious problems that may lead to avascular necrosis, nerve palsy, post-traumatic arthritis even when reduction is promptly and adequately carried out. Among them avascular necrosis is the most important prognostic factor, so the early detection of this complication has critical significance for final result. Bone scan has been considered one of early diagnostic test, but recently MRI replaced its role for imaging in the detection of early AVN, treatment monitoring and prediction of prognosis. Authors prospectively studied the early finding of MRI to detect avascular necrosis of the femoral head and to predict prognosis in traumatic hip dislocation and fracture-dislocation. From December 1990 to November 1994, 12 case of dislocation and fracture-dislocation of the hip were studied . In follow up period ranging from 19 months to 65 months, 10 case had excellent or good result. All cases had abnormal MRI finding such as paraarticular edema, capsular bulging, joint effusion, femoral head fracture, but findings such as femoral head signal changes were dectected in only 3 cases. Among the 3 cases, 1 case had developed AVN and 2 cases were uneventful. Other complications were 3 cases of posttraumatic arthritis, 2 cases of incomplete sciatic nerve palsy, and 1 case of heterotrophic ossification. Although early MRI finding at posttrauma 2weeks gave less specific information, it could give good information for risk group and follow up control with more cases. Although it is expensive, MRI can be one of the most reliable reference in early diagnosis of AVN and prediction of prognosis in traumatic dislocation and fracture- dislocation of the hip with non-invasive method.
Arthritis
;
Diagnostic Tests, Routine
;
Dislocations
;
Early Diagnosis
;
Edema
;
Follow-Up Studies
;
Head*
;
Hip Dislocation*
;
Hip Joint
;
Hip*
;
Joints
;
Magnetic Resonance Imaging*
;
Necrosis
;
Paralysis
;
Prognosis
;
Prospective Studies
;
Sciatic Neuropathy