This is an analysia of 126 cases(14.1%) of segmental vitiligo among 892 vitiligo patient who had visited vitiligo special clinie in Severance Hospital. The results are summarized as follow : 1. There were 53 males(42.1%) and 73 females(57.9%). 2. The mean age of onset was 15.4 years, the mean age on the first visit was 19.3 years, and mean duration of the disease was 4.8 years. 3. Mode of onset was single in 86.5% and the disease was table in 57.1% of patients at the visit. 4. The mean percentage of depigmented lesions was 3.3% and less than 5% of body surface area was involved in 86.5% of patients. 5. The most common site of involvement was head and necl(59.6%), especially face(43.7%) and the trigerminal dermatome was most commonly involved. 6. Poliosis was observed in 39.7%. 7. Family history of vitiligo was obtained in 11.1% of patients. There was no precipitating factors in 126 cases prior to development of vitiligo. 8. Koebner phenomenon was found in 4% of patients. 9. Association with diseases of a proven or suggested allergic or immunologic etiology including atopic dermatitis, halo nevus, uveitis, thyroid disease, lopecia areata and premature graying of hair was found in 10.3% of patients.
Age of Onset ; Body Surface Area ; Dermatitis, Atopic ; Hair ; Head ; Humans ; Nevus, Halo ; Precipitating Factors ; Thyroid Diseases ; Uveitis ; Vitiligo*

Thirty-six cases of paroxysmal supraventricular tachycardia which were observed at the Department of Pediatrics, Seoul National University Hospital from 1976 till October 1982, were analyzed. 1. The sex ratio was 1.8:1, male predominance. Sixteen cases (44.4%) were under 1 year of age and 11 cases (30.6%) were under 4 months of age. 2. Cases without known heart disease were 22(61.6%). Among Known etiology, most frequent one was 7 cases(19.4%) of W-P-W syndrome. 3. The sex ratio of group without known heart disease was 2.1:1, and that of group with known heart disease was 1.3:1. Under 4 months of age, there were more cases without known heart disease(72.7%) and after 4 months of age number of cases with and without known heart disease were similar. 4. Most frequent clinical manifestation was tachydyspnea. hepatomegly, irritability, palipitation, cyanosis and pallor, vomiting, chest pain, edema, abdominal pain, and fever were followed in order of frequency. 5. Congestive heart failure occurred in 22 cases(61%). The incidence was related to the duration of attack of tachycardia, age of patients, and heart rate. The longer the duration of attack and the younger the age of patients and the faster the heart rate, the higher incidence of heart failure was observed. 6. As treatment, vagal reflex stimulation was almost ineffective, and digitalization was effective in most of the cases. Verapamil and electrical cardioversion were tried in small number of cases and proved to be effective. 7. One case (2.8%) expired becase of the supraventricular tachycardia. 8. Eight cases (30.8%) had recurrence. In younger age group, recurrence rate was lower. 9. Digoxin was given in 15 cases for prevention of recurrence and was effective in 12 cases.
Abdominal Pain ; Chest Pain ; Child* ; Cyanosis ; Digoxin ; Edema ; Electric Countershock ; Fever ; Heart ; Heart Diseases ; Heart Failure ; Heart Rate ; Humans ; Incidence ; Infant* ; Male ; Pallor ; Pediatrics ; Recurrence ; Reflex ; Seoul ; Sex Ratio ; Tachycardia ; Tachycardia, Supraventricular* ; Verapamil ; Vomiting

We have experienced 52 intra-articular fractures(24 malleolar, 17 patellar, 11 olecranon) treated with tension band wiring from 1972 to 1981 and the results are as followings; 1. The operative technique is relatively simple and easy. 2. In avulsion fractures without communition, anatomical reduction and rigid internal fixation can be achieved. 3. In comminuted fractures, the fragments can be securely fixed with a few additional K-wires including tension band wiring. 4. In avulsion fractures, where the fragment is either too small for screw fixation or too osteoporotic a tension band wiring can be applied with no difficulty. 5. Early joint motion reduces the functional disability and promote the fracture healing.
Fracture Healing ; Fractures, Comminuted ; Joints ; Olecranon Process

No abstract available.
Child* ; Humans

Synthetic hydroxyapatite is a safe, nontoxic, biocompatible, and osteoconductive material. Hydroxyapatite-coated implants have the property of achieving a very strong bond with living bone in a relatively short period. From March 1992 to June 1994, 140 hydroxyapatite-coated primary total hip prostheses were implanted. This study included 60 cases that could follow up minimum 3 years. At the time of mean follow up, 45 months after operation, the mean Harris hip score was 92 points. Only two patients complained of thigh pain at last follow up. On radiographic evaluation, radiolucent lines were seen around the uncoated distal part of the stem in 46 percents of the implants. No radiolucent line was observed around the coated area of the prosthesis. Cancellous condensation was seen in 95 per cents of the implants at the Gruen zone 2 and 6 area. Cortical hypertrophy was present in 32 percents. Fourteen cases had the gaps at the bone to acetabular cup interface in the immediate postoperative period. The gaps disappeared in 12 months after operation. Five implants were revised because of polyethylene wear, cup migration and periprosthetic fracture. The clinical outcome was excellent. But this result was obtained in the relatively short-term follow up. Longer-term data will be the only true test of the value of hydroxyapatite coated implant.
Acetabulum ; Arthroplasty, Replacement, Hip ; Durapatite* ; Follow-Up Studies ; Hip Prosthesis* ; Hip* ; Humans ; Hypertrophy ; Periprosthetic Fractures ; Polyethylene ; Postoperative Period ; Prostheses and Implants ; Thigh

Respiratory distress is not uncommon in children and adolescents, who are at higher risk of progressing into respiratory failure than adults. When managing dyspneic pediatric patients, a clinical history and physical examination should be performed simultaneously and must be followed up by prompt first aid, including oxygen supplementation. Prior to initiating an invasive therapy such as endotracheal intubation, noninvasive positive pressure ventilation should first be considered. This method may be effective in patients with chronic respiratory distress and failure. The prevention and proper management of respiratory infections are also important in affected patients. If chronic respiratory distress deteriorates into respiratory failure, a portable home mechanical ventilator may be needed.
Adolescent* ; Adult ; Child* ; First Aid ; Humans ; Intubation, Intratracheal ; Oxygen ; Physical Examination ; Positive-Pressure Respiration ; Respiratory Insufficiency ; Respiratory Tract Infections ; Ventilators, Mechanical

Hydroa vacciniforme is a very rare photosensitivity disorder. The primary skin lesion is a vesicle or bulla which then heals with vacciniform scarring. We report a case of hydroa vacciniforme recurred after 3 years period of quiescence in a 20 year-old man who had had history of the disease from the age of two. The duplication of the natural lesion, clinically and histologically, was successfully made by artificial UV-A irradiation on the patient's back.
Cicatrix ; Hydroa Vacciniforme* ; Photosensitivity Disorders ; Skin

No abstract available.
Estrogens* ; Humans ; Receptors, Estrogen* ; Thyroid Diseases* ; Thyroid Gland*

No abstract available.
Breast Neoplasms* ; Breast*

This study was undertaken to investigate the recovery of epidermal Langerhans cells in relation to time after UVA irradiation through different amounts and ways of exposure in CH mice. We irradiated the ears of C2H mice with UVA 200J/cm2 and 400J/cm2 in a single dose at one time or 5 fractionated doses for 5 days and performed biopsies on the ears of the control and experimental groups after 2, 7, 14, 21days of irradiation and stained them with immunoperoxidase method. The results are summarized as follows, l. We observed a significant decrease in the number of the Ia-positive epidermal Langerhans cells in the single-dose-exposed group compared to the fractionated- dose-exposed group on 7th and 14th days irradiated with UVA 200J/cm. 2. There was no significant difference in the change in the number of the Ia- positive epidermal Langerhans cells until 21 days of exposure between the single- dose-exposed group and the fractionated-dose-exposed group irradiated with UVA 400 J/cm 3. In the group irradiated with UVA 2003/cm, the reduced number of the Ia-positive epidermal Langerhans cells returned to normal on the 14th day after irradiation in the fractionated-dose-exposed group and on the 21st day in the single- dose-exposed group. In the group irradiated with 400J/cm, the number returned to normal on the 21st day of irradition both in the fractionated-dose-exposed group and in the single-dose-exposed group.
Animals ; Biopsy ; Ear ; Langerhans Cells* ; Mice ; Mice, Inbred C3H*