No abstract available.
Child* ; Humans ; Obesity*

Focal nodular hyperplasia is a benign hepatic tumor mainly composed of nodules of hepatocytes and Kupffer cells separated by fibrous septa. In general, it is difficult to differentiate focal nodular hyperplasia and hepatocellular carcinoma on ultrasonography, conventional CT(computerized tomography), and angiography. But IV bolus CT is of particular value in the diagnosis of focal nodular hyperplasia because it can divide enhanced CT into early and late phase and can characterize tumor vascularity and analyze any intratumoral elements. In our case, it was seen as a hypoechoic mass lesion on ultrasonograpl'hy and hyperdense mass lesion on early-phase IV bolus CF and isodense mass, lesion on late-phase IV bolus CT. On angiography, hypertrophy of the feeding artery and tumor staining were well visualized. The patient underwent operation and the mass was pathologically confirmed to a focal nodular hyperplasia. We report the first case of focal nodular hyperplasia on IV bolus CT in Korea.
Angiography ; Arteries ; Carcinoma, Hepatocellular ; Diagnosis ; Focal Nodular Hyperplasia ; Hepatocytes ; Humans ; Hypertrophy ; Korea ; Kupffer Cells ; Liver* ; Ultrasonography

No abstract available.
Humans ; Intensive Care Units* ; Critical Care* ; Korea*

No abstract available.
Anesthesia* ; Certification*

Henoch-Schonlein purpura is a common pediatric disease presenting most frequently with skin, gastrointestinal, joint and renal manifestations. But in cases are infrequently only severe gastrointestinal manifestations. It is hard to diagnose promptly and exactly. Clinical manifestations and laboratory findings were observed and analyzed in 20 cases with Henoch-Schonlein purpura which were considered as acute abdomen, hospitalized at Kyung Hee university Hospital during the period from December, 1982 to September, 1992. The following results were obtained; 1) The age distribution of Henoch-Schonlein purpura had a peak incidence between 7 to 9 year old. And male preponderance was observed with male to female ratio of 2.33 to 1. 2) The most prevalent season for the initial presentation of Henoch-Schonlein purpura was in fall: in 10 cases (50%). 3) The frequency of each type of clinical manifestations showed 20 (100%), 20 (100%), 18 (90%), 8(40%) cases for skin, gastrointestinal, joint and renal manifestation respectively in order of frequency. 4) The common previous illness were URI, 40 cases (50%) and allergy, 2 cases (10%). 5) The onset time of skin manifestation from admission were 1 to 4 days (75%0, 5 to 8 days (15%), 9 to 12 days (10%) explolaparotomies were done the last 2 cases. 6) In all cases, X-ray study (100%), abdominal sono (50%), Meckels scan and colon study (5%) respectively were done. 7) Hematologically leukocytosis over 10,000/mm3 was observed in 80% of cases and increase in ESR over 20 mm/hr in 65% of cases. Coagulation studies, immunologic and complement level revealed the result within normal range in most of the cases. 8) Among 8 cases with renal involvement, all cases had both hematuria and proteinuria. 9) Most cases were recovered within 4 weeks but in 4 cases, renal biopsies were done because of relapse. The results were Meadow classification grade I (1 case), II (1 case), IVa (2 cases). After renal biopsy, steroid pulse therapy was started.
Abdomen, Acute* ; Age Distribution ; Biopsy ; Child ; Classification ; Colon ; Complement System Proteins ; Female ; Hematuria ; Humans ; Hypersensitivity ; Incidence ; Joints ; Leukocytosis ; Male ; Proteinuria ; Purpura, Schoenlein-Henoch* ; Recurrence ; Reference Values ; Seasons ; Skin ; Skin Manifestations

No abstract available.
Submandibular Gland* ; Tuberculosis*

The Korean Society of Anesthesiologists began to take in training examination(Self Assessment) for the residents in April 1989. Two hundreds thirty four participants took the first examination and after that 343 in 1990, 399 in 1991, 455 in 1992 took the examination obviously the actual number is increasing each year. This study was done to see if there is any correlationship between the results of self assessment and board examination in the same population group. Ninety two persons who took self assessment in April 1990 and board examination in Jan 1991 and 108 persons who took self assessment in Sept. 1991 and board examination in Jan 1992 were investigated. In both groups we can see the close positive correlationships between the results of self assessment and written board examination.
Anesthesiology* ; Humans ; Population Groups ; Self-Assessment

It is common to administrate neostigmiae methylsulfate and atropiae aulfate to counteract the effect of nondepolarising neuromuscular blocker. In case of cardiovascular disease, the effect of bradycardia or tachycardia resultiag from the administration of these drugs may be harmful to the patient. The purpose of this study is to investigate the effects of combinatioa and method of administration of neostigmine methylsulfate and atropine sulfate on heart rate. One hundred and two patients in both sexes were devided into three groups(A, B, C), and each group was devided into three subgroups (AI, AII, AIII, BI, BII, BIII, CI, CII, CIII). In group A, neostigmine methylsulfate and atropine aulfate were mixed and administered intravenously within fifteen seconds. In group B, atropine eulfate was administered thirty seconds after the administration of neostigmine methylsulfate. In group C, the two drugs were mixed and administered over a period of five minutes. In subgroup I the ratio of neostigmine methyliulfate to atropine sulfate was 2: 1(0. 04 mg/kg: 0.02 mg/kg) in subgroup 3 the ratio was 3: 2(0.03 mg/kg: 0. 02 mg/kg), and in subgroup lll the ratio was 1: 1(0. 02 mg/kg: 0. 02 mg/kg). The heart rate was counted just before, 0. 5 minute, 1 miaute, l. 5 minutes, 2 minutes, 3 minutes, 5 minutes, 10 minutes, 15 minutes, 20 minutes, 25 minutes, 30 minutes after the administration of the drugs. The results were as follows: 1) Initial increase in heart rate was significant in lager atropine ratio. 2) The later decrease in heart rate waa less in larger atropine ratio. 3) The maximal increases in heart rate in groap A and B appeared thirty seconds apart, but there was little difference betweea them. 4) The change ia heart rate was the least in group C.
Atropine* ; Bradycardia ; Cardiovascular Diseases ; Heart Rate* ; Heart* ; Humans ; Neostigmine ; Neuromuscular Blockade ; Tachycardia

In a series of 20 young rats, three cortical lesions were made in each hemisphere. Two of these lesions were filled with avitene and gelfoam, while the third was left empty as a control. The animals were killed successively on weeks 1, 2, 4 and 8 after the operation. The results were as follows : 1) Although there was no difference in the type of tissue reactions, avitene was more rapid and profound than gelfoam in the process and degree of inflammatory reaction at the same periods. 2) Avitene biodegradaded more rapidly than gelfoam. 3) The extent of fibrosis and adhesion to the surrounding brain tissues were not grossly different between these two agents but more profound histopathologically in avitene at the same periods. With these results, we could conclude that the avitene was superior to the gelfoam as the hemostatic agent in neurosurgical area.
Animals ; Brain* ; Collagen ; Fibrosis ; Gelatin Sponge, Absorbable ; Rats

The use of pure titanium and titanium alloys have been increased recently in fixed, removable prosthodontics and implant fields as a framework. But when they were used for superstructures of implant of metal framework of removable prosthesis, welding is necessary to reconnect the fracture site to control the casting distortions. To overcome the difficulties in soldering the titanium due to high oxidation property, much effort have been devoted. In this study, some of mechanical properties were compared between pure titanium and Ti-6Al-4V alloy by usingl aser welding, electron beam welding technique and tungsten arc welding. Mechanical properties such as tensile strength, yield strength, elongation and microhardness were measured. And, in order to compare the effect of welding site and surrounding metal tissue according to the welding condition, SEM photographs were taken an element distribution was observed by Wave Dispersion Spectroscopy. Through analyses of the data, following results were obtained; 1. In items such as tensile strength, yield strength and elongation according to the welding techniques of pure titanium, only tungsten arc welded group showed significant lower value than other groups(P<0.05). 2. In items such as tensile strength and yield strength according to the welding techniques of Ti-6Al-4V alloy, control group and tungsten arc welded group showed significant difference among all the groups(P<0.05). 3. Ti-6Al-4V alloy exhibited significantly greater elongation than control group when the laser welding method and electron beam welding method were used, and elongation showed increasing tendency. 4. Pure titanium specimens exhibited increasing tendency of microhardness regardless of the welding technique applied, and especially tungsten arc welded group demonstrated a great increase of microhardness than parent metal. 5. There was no hardness change in laser welded group and electron bean welded group of Ti-6Al-4V ally, but in tungsten arc welded group, hardness changed greatly from parent metal to weld seam. 6. Through the metallographic examination and scanning electron microscopy, laser welding caused central fusion and recristallizations were formed and tungsten arc welding caused localized fusion to 0.3-0.7mm from the surface.
Alloys ; Hardness ; Humans ; Microscopy, Electron, Scanning ; Parents ; Prostheses and Implants ; Prosthodontics ; Spectrum Analysis ; Tensile Strength ; Titanium* ; Tungsten ; Welding*