No Abstract Available.
Cadaver* ; Humans* ; Spinal Cord* ; Spine*

No abstract available.
Animals ; Guinea Pigs* ; Guinea* ; Nasal Mucosa*

Benign tumors of the mendible are uncommon lesions. That were classifed into odontogenic tumors and nonodontogenic tumors. Author reviewed the radiological evaluation and pathological microscopic finding from 33 benign tumors of the mandible that were comfirmed by the biopsy during last 10 years in Dental Clinics, Ewha Womans University Hospital and Seoul Natinal University Dental Hospital. Following results were obainend; 1.Benign tumors of the mandible were classified into odontogenic (66.7%) and non-odontogenic tumors (33%). 2. The range of the age distribution was between 6 years and 67 years old. The commonest age group was the second decade(39.4%). 3. There was no difference to sex distribution. 4. The most frequent locatio was the body of the mandible (42.4%). 5. Radiographic findings were relatively characteristic in odontogenic tumors rather thannon-odontogenic tumors. 1) Radiolucent cystic lesions-ameloblastoma, odontogneic myxoma, odontogneic fibroma,aneurysmal bone cyst and neurofibroma. 2) Radiopaque mass lesions-odontoma, cementoma and osteoma. 3) Mixed patterns-ossifying fibroma, cementifying fibroma, calcifying odontogenic epithelial tumor and hemangioma. It was concluded that the radiographic examination was of value to diagnose the benign tumos of tee mandible in symptomless patients.
Age Distribution ; Biopsy ; Bone Cysts ; Cementoma ; Dental Clinics ; Female ; Fibroma ; Hemangioma ; Humans ; Mandible ; Myxoma ; Neurofibroma ; Odontogenic Tumors ; Osteoma ; Seoul ; Sex Distribution

Fifteen cases of corrective operation for the ascending aortic aneurysm performed under general anesthesia from 1979 to 1985 in Severance Hospital were studied retrospectively. There were ten male patients and 5 female and their average age were 36.6 years(range 25~50 years). Most of the patients showed aortic regurgitation. Thus the anesthetic management involved consideration for patients with aortic dissection combined with aortic incompetence(annuloaortic ectasia). Patients were premedicated with atropine or glycopyrrolate in 14 cases and a combination of triflupromazine, hydroxyzine, diazepam and pethidine in 13 cases or a combination of hydroxyzine and morphine in 2 cases. Anesthesia was induced with thiopental sodium and/or diazepam and/or midazolam and/or morphine IV. Morphine and a mixture of 50% nitrous oxide and oxygen was administered for maintenance of anesthesia. Supplementary volatile anesthetics were inhaled as needed. Vasodilating therapy and avoidance of bradycardia during anesthesia are the most importance considerations for the reduction of left ventricular wall tension and to maximize the myocardial oxygen supply while maintaining cardiac output. Operative complications were reoperation due to bleeding in four cases, myocardial infarction in two cases, pericardial tamponade and urethral track infection in one case each. One patient died of sepsis. Fourteen patients improved in their heart size and function.
Anesthesia ; Anesthesia, General ; Anesthetics ; Aortic Aneurysm* ; Aortic Valve Insufficiency ; Atropine ; Bradycardia ; Cardiac Output ; Cardiac Tamponade ; Diazepam ; Female ; Glycopyrrolate ; Heart ; Hemorrhage ; Humans ; Hydroxyzine ; Male ; Meperidine ; Midazolam ; Morphine ; Myocardial Infarction ; Nitrous Oxide ; Oxygen ; Reoperation ; Retrospective Studies ; Sepsis ; Thiopental ; Triflupromazine

Epileptic seizures of nystagmoid character with the fast -beat to the opposite side of the epileptogenic focus have been described as oculoclonic seizures and epileptic nystagmus. Epileptic nystagmus, especially horizontal, most commonly results from seizure activity involving the occipital cortex, although participation of adjoining portions of the parietal and temporal cortex is possible. The frequency of ictal nystagmus was less than 10% of patients with occipital lobe epilepsy. Although forty-six cases were already reported at the litherature, there was no report in korea. We reported a 20-year old patient who had history of recurrent paroxysmal attacks of epileptic nystagniu, associated with oscillopsia and followed by episodic bilateral blindness and eyelid flutter. Standard and extra occipital electrodes visualized more exact left occipital foci at the videomonitored EEG examination when the patient showed epileptic nystagmus. The ictal Brain SPECT, with the use of 99mTc-HMPAO also localized the seizures to left occipital lobe.
Blindness ; Brain ; Electrodes ; Electroencephalography ; Epilepsies, Partial* ; Epilepsy ; Eyelids ; Humans ; Korea ; Occipital Lobe* ; Rabeprazole ; Seizures ; Technetium Tc 99m Exametazime ; Tomography, Emission-Computed, Single-Photon ; Young Adult

In a study of 460 cases of upper gastrointestinal bleeding admitted in Han Yang University Hospital during the 6 year period 1978-1983 inclusive, the following results were obtained. (continue...)
Hemorrhage*

PURPOSE: The objective of our study was to compare preoperative "Monitor Templating" with postoperative results for total hip replacement and to investigate the accuracy of "Monitor Templating" that was carried out by monitoring with picture archiving communication system (PACS). MATERIALS AND METHODS: Forty five patients underwent primary cementless total hip replacements. For setting parameters, we located the 10cm rod placed in the medial thigh on anteroposterior view of both hips and in the anterior thigh on Lowenstein lateral view. We measured implant sizes and the predictive value of corrective change in leg length and horizontal offset, by using radiographs magnified 120% of the anteroposterior views of both hips and Lowenstein lateral view of PACS on 27 inch monitor. We examined the correlation between preoperative monitor templating and the actual implant size, postoperative leg length and horizontal offset difference. RESULTS: The preoperative monitor templating showed a high rate of coincidence with the actual implant size, the postoperative leg length, and the horizontal offset difference. The averages in accurate prediction were 98% in the acetabular cup, 98% in the femoral stem, 97% in the postoperative actual difference of leg length, and 97% in the horizontal offset. With regard to leg length discrepancy, the sick limb was on average 4.7 mm shorter and 0.5 mm longer postoperatively than the contralateral limb. The average ratio of horizontal offset of the sick limb to the contralateral limb was 94.6% preoperatively and increased to 97.8% postoperatively. CONCLUSION: Preoperative "Monitor Templating" using PACS images on 26 inch monitor is an easy and effective method for predicting implant size, correcting leg length discrepancy and restoring horizontal offset.
Arthroplasty, Replacement, Hip ; Extremities ; Hip ; Humans ; Leg ; Organothiophosphorus Compounds ; Thigh

In recent studies there have been various attempts at replacing a damaged retina with an artificial one. This paper outlines the assembly of an artificial retina membrane by incorporating a photorective protein bacteriorhodopsin into an electrochemically syntheszed conducting polymer polypyrrole. An electrophysiologic test was conducted to evaluate the photoresponsiveness of the bacteriorhodopsin and rabbit eyes were used to examine the biocompatibility of the artificial retina. The electrophysiologic test analyzed both wave forms and amplitudes obtained by photostimulating the artificial retina membrane with various light intensites(0.2, 2, 20J). In the biocompatibility test, the artificial membrane was inserted into the anterior chambers(4 eyes) and vitreous cavities(8 eyes) of rabbits. The condition of the eyes was then observed for one month. At the end of the first moonth, the eyes were enucleated and a histological examination was carried out. The electrophysiologic study displayed negative reflection waves, which are characteristic in rhodpsin, and their amplitudes showed a correspondign increase with stronger light intensities. The results of the biocompatibility test demonstrated that inflammatory reactions were not prominent in either the anterior chambers or the vitreous cavities during the first month and the histological examinations revealed no specific findings. In conclusion, a membrane assembled utilizing an electroactive polymer and a phocial retina.
Anterior Chamber ; Bacteriorhodopsins ; Membranes ; Membranes, Artificial ; Polymers ; Rabbits ; Retina*

PURPOSE: The purpose of present study is to analyze the incidence and the predisposing factors for postoperative complications that diabetes mellitus (DM) patients suffer after undergoing total hip arthroplasty. MATERIALS AND METHODS: Among the 379 patients who underwent primary cementless total hip arthroplasty from September 1998 to February 2007, fifty-nine patients (62 hips) who had DM were selected and the other 320 patients (378 hips) without DM were set as a control group to perform comparative analysis. The mean follow up period was 36 months (range, 12-117 months) and the mean age of patients was 55.5 years (range, 16-79 years). The preoperative and annual postoperative Harris Hip Score (HHS) and the postoperative complications were checked. We analyzed the factors that were associated with the incidence of postoperative complications in DM patients. RESULTS: The DM group had a higher incidence of urinary tract infection and a longer admission period than did non-DM group (p=0.001 and p=0.002). The HHS was 52 and 53 (p=0.185), respectively, for the DM patients and the non-DM patients preoperatively, and it was 93 and 95 (p=0.467), respectively, at the last follow up. The predisposing factors for postoperative complications in DM patients are a high hemoglobin A1c (HbA1c) level and comorbidities. CONCLUSION: Total hip arthroplasty in DM patients is associated with a higher incidence of postoperative complications and a prolonged admission period. A high HbA1c level and comorbidities are considered to have significant associations with these complications.
Arthroplasty ; Comorbidity ; Diabetes Mellitus ; Follow-Up Studies ; Hemoglobins ; Hip ; Humans ; Incidence ; Postoperative Complications ; Urinary Tract Infections

OBJECTIVE: To investigate the the effects of interleukin-17 (IL-17)on the production of vascular endothelial growth factor (VEGF)from cultured rheumatoid arthritis synoviocytes. METHODS: Fibroblast-like synovial cells(FLS)were prepared from the synovial tissues of rheumatoid arthritis patients and cultured in the presence of IL-17, IL-17 with or without transforming growth factor-beta(TGF-beta),tumor necrosis factor-alpha(TNF-alpha)and interleukin-1 beta(IL-1 beta).VEGF levels were determined in the culture supernatants by sandwitch ELISA. RESULTS: Stimulation of FLS by serial concentration of IL-17,TGF-beta,TNF-alpha,IL-1 beta increased the production of VEGF by 2.1-2.7,2.2-3.0,2.0-2.9,2.3-3.1 fold over the constitutive levels of unstimulated FLS.Stimulation of FLS by IL- 17 with TGF-beta or TNF-alpha or IL-1 beta also increased the production of VEGF accord-ing to culture periods by 1.6-1.8,1.1-1.9,1.5-1.7 fold over the levels stimulated with TGF-beta or TNF-alpha or IL-1 beta,respectively.This results indicated that IL-17 increased the effect of TGF-beta,TNF-alpha,IL-1 beta on FLS,leading synergistic enhancement of VEGF production. CONCLUSION: IL-17 may be involved in the neovascularization in rheumatoid synovitis by enhancing the production of VEGF.
Arthritis, Rheumatoid* ; Enzyme-Linked Immunosorbent Assay ; Humans ; Interleukin-1 ; Interleukin-17* ; Interleukin-1beta ; Necrosis ; Synovitis ; Transforming Growth Factor beta ; Tumor Necrosis Factor-alpha ; Vascular Endothelial Growth Factor A*