PURPOSE: The purpose of this study is to evaluate the CT features and pathogenesis of the electric brain injuries. MATERIALS AND METHODS: We reviewed the CT scans of 3 patients injured by high-voltage electricity. We evaluated the findings early and delayed periods in each patients. RESULTS: The early CT findings were diffuse brain edema, scalp swelling, and focal hemorrhagic contusion. The findings of delayed period were cerebral infarction, pneumocephalus, brain abscess, and pneumatocele. CONCLUSION: CT was useful to correlate the pathogenesis and variable features of electric brain injuries.
Brain Abscess ; Brain Edema ; Brain Injuries ; Brain* ; Cerebral Infarction ; Contusions ; Electric Injuries* ; Electricity ; Humans ; Pneumocephalus ; Scalp ; Tomography, X-Ray Computed

A 48-year-old woman, who had had tattoo on her eyebrows, was seen with pruitic erythematous indurated plaques on the tattooing sites. The skin react ion was begun to observe about 4 weeks after getting tattoo. Skin biopsy specimens from the indurated lesions showed granulomatous reactions. Intradermal tests by means of multiple pricks and patch test were done on her low back with the same tattoo dye and also 4 others available in Korea. Serial punch biopsy specimens were obtained from the sites of intradermal test at 2nd, 7th, 28th, and 56th day after intradermal test. Granulomatous reactions were found in the spiecimens taken at the 28th and 56th day.
Biopsy ; Eyebrows ; Female ; Humans ; Intradermal Tests ; Korea ; Middle Aged ; Patch Tests ; Skin ; Tattooing

There have been few reports of hypoglycemic encephalopathy (HE) with unilateral brain lesion. A 66-year-old male with hypoglycemia, who had history of diabetes and recent poor oral intake, presented with amnesia and confusion. Diffusionweighted imaging (DWI) showed high signal intensity in left hippocampus, which was low on apparent diffusion coefficient (ADC) map. By intravenous glucose, the symptoms improved besides amnesia for hypoglycemic period. Follow-up DWI revealed no lesion and single photon emission computed tomography (SPECT) showed decreased perfusion in left temporo-parieto-frontal area. We experienced a case of HE with a reversible unilateral hippocampal lesion.
Aged ; Amnesia ; Brain* ; Diffusion ; Follow-Up Studies ; Glucose ; Hippocampus ; Humans ; Hypoglycemia ; Magnetic Resonance Imaging* ; Male ; Perfusion ; Tomography, Emission-Computed, Single-Photon

Platelet-rich plasma (PRP) has been known to increase the rate and degree of bone formation by virtue of growth factors in concentrated platelets. Although its great healing effect on bone defect or pre-implantation site preparation in conjunction with bone substitute has been reported, the effect associated with implant is unknown. The purpose of this study was to investigate the effect of PRP on rapid osseointegration of endosseous dental implants in the rabbit tibiae. Twenty two adult female New Zealand white rabbits, weighing approximately 2.7-3.3kg, were used for this study. Twelve of the 22 animals were used for histomorphometric analysis and ten of the 22 were for removal torque test. Each animal received two implants in each tibia (two treated with PRP and two as control) and was given fluorochrome intramuscularly. For histomorphometric analysis, rabbits were divided into four groups according to the healing period. At 1 week, 2 weeks, 4 weeks and 8 weeks postoperatively, each three animals were sacrificed serially and the amount and rate of bone formation around dental implant were examined on the undecalcified sections under fluorescent microscope, polarized microscope and light microscope connected to a personal computer equipped with image analysis system. For removal torque test, rabbits were divided into two groups and removal torque tests were performed at 4 weeks, 10 weeks after implant placement. In total, 88 screw shaped, commercially pure titanium implants (Neoplant, Neobiotech, Seoul, Korea) were used in this study. Labeling pattern reflected differences of two groups in bone formation rate at each period. Histomorphometrically, PRP group showed significantly higher bone volume within threads compared to control group at 2 weeks (70.30+/-4.96% vs. 50.68+/-6.33%; P<.01) and 4 weeks (82.59+/-5.94% vs. 72.94+/-4.57%; P<.05). PRP group at 1, 2 and 4 weeks revealed similar degree of bone volume formation comparable to control group at 2, 4 and 8 weeks, respectively. On the other hand, while PRP group showed higher bone-implant contact (47.37+/-8.09%) than control group (33.16+/-13.47%) at 2 weeks, there were no significant differences between PRP group and control group for any experimental period. Removal torque values also showed no significant differences between PRP group and control group at any experimental period (P>.05). These findings imply that PRP could induce rapid, more bone formation around implant during early healing period and get faster secondary stability for reducing healing period, though it has not induced bone maturation enough to resist functional loading.
Adult ; Animals ; Bone Substitutes ; Dental Implants* ; Female ; Hand ; Humans ; Intercellular Signaling Peptides and Proteins ; Microcomputers ; Osseointegration ; Osteogenesis* ; Platelet-Rich Plasma* ; Rabbits ; Seoul ; Tibia ; Titanium ; Torque* ; Virtues

We produced two murine monoclonal antibodies designated S2E1 and S2C11, which recognize S antigen of hepatitis B virus (HBsAg). S2E1 could bind to denatured form of recombinant HBsAg as well as native form of HBsAg, but S2C11 could bind only to native form of HBsAg. Both antibodies reacted with HBsAg in the hepatocyte of patient infected with hepatitis B virus. Analyses of the nucleotide sequences encoding the variable regions of these antibodies revealed that S2E1 and S2C11 utilize variable gene segment which belong to V4/5 gene family and utilize the J5 and Jk4 gene segments, respectively. In addition, the heavy chain of S2E1 express a member of V14 gene family and a member of DSP2.9 and Jh3 gene families. S2C11 is related to the V1 gene family and expresses DFL16.1 gene regions in conjunction with the Jh3 gene segment.
Antibodies ; Antibodies, Monoclonal* ; Base Sequence ; Clone Cells* ; Cloning, Organism* ; Hepatitis B Surface Antigens ; Hepatitis B virus* ; Hepatitis B* ; Hepatitis* ; Hepatocytes ; Humans

No abstract available.
Peritoneal Dialysis, Continuous Ambulatory* ; Peritonitis, Tuberculous*

Transient global amnesia (TGA) causes retrograde amnesia, but there have been few reports of retrograde amnesia as a presenting symptom in TGA. A 52-year-old male who had acute amnesia for the past 4 years presented with TGA and recovered within 1 day. Brain magnetic resonance imaging revealed a lesion in the left hippocampus, and brain single-photon emission computed tomography revealed decreased blood flow in the left temporal and frontal areas. We speculated that hippocampal lesion with a frontal perfusion defect can be a cause of TGA.
Amnesia ; Amnesia, Retrograde ; Amnesia, Transient Global ; Brain ; Hippocampus ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Perfusion ; Tomography, Emission-Computed

No abstract available.
Fournier Gangrene* ; Myocutaneous Flap*

With the industrial development, vehicle, wars, and natural disasters, there are increasing chsnces of mass casuaities, it is very important to classify the injured patients by their severity, to give them immediate emergency care and to transfer them to the other medical facilities effectively. And it is more essential in the army. But in practice, there is no objective and comprehensive scale for injury severity yet. So we devised a method of comprehensive description for the injuredpatients. It is based on Abbreviated Injury Scale and Injury Severity Score and is composed of five parts of the body (General, Head & Neck, Chest, Abdomen, Extremities) and five degrees of severity (Grade I, Il, III, IV, V). For example, a description of a patient with multiple injuries such as generalized abrasion and cotusion, semicomatose mentality with skull fracture, hemoperitoneum, and fracture of right femoral shaft is very diffcult to understand quickly. But, with our method of description, the above is described as follows ; G(I)+(IV)+A (IV)+E(III), ISS =4+4+3 =41. And the high score is described as ISS makes it clear that the patient is very dangerous, even to death, so intensive care is immediately needed. Using this method, we reviewed 1,256 cases of passenger acidents of vehicles treated at our hospital during the last 2 years. The results were as follows ;1. The average ISS of 56 cases of dead is 33. 2. There are only 2 cases of death below 16 of ISS, and 84% mortality above 40 of ISS. 3. The average ISS of passengers in vehicles such as motocycles is 12, taxies 11, bongo 9, and buses 8. 4. We recommend our method of description for mass casualties, especially in the army. Because it is very useful to the injured patients by their severity, to give them immediate emergency care, to transfer them to the other medical facilities and to comprehend the whole condition of all patients.
Abbreviated Injury Scale ; Abdomen ; Critical Care ; Disasters ; Emergency Medical Services ; Head ; Hemoperitoneum ; Humans ; Industrial Development ; Injury Severity Score ; Mass Casualty Incidents ; Methods ; Mortality ; Motor Vehicles ; Multiple Trauma ; Neck ; Skull Fractures ; Thorax

Although some cases of benign positional vertigo are associated with a chronic ipsilateral sensorineural hearing loss, an association with simultaneous ipsilateral sudden deafness is rare. We report a 53-year old woman with sudden deaf-ness with simultaneous positional vertigo in the same ear characterized by benign paroxysmal positional vertigo of pos-terior semicircular canal type. After a modified Epley particle-repositioning maneuver, the patient's vertigo was resolved. Clinical and neuro-otologic evaluations suggested that the lesion responsible for this patient was probably located within inner ear rather than within the vestibulocochlear nerve. (J Korean Neurol Assoc 19(4):410~412, 2001)
Ear ; Ear, Inner ; Female ; Hearing Loss, Sensorineural ; Hearing Loss, Sudden* ; Humans ; Middle Aged ; Semicircular Canals ; Vertigo* ; Vestibulocochlear Nerve