OBJECTS: Thls study was designed to assess muscle tensions while working at a YDT workstation with surface electromyography (SEMG). METHODS: Variables texted were desk height, monitor positon on the desk, distance from edge of the desk to the keyboard. Eleven female volunteers working in the tele-com munication company were seated at an ergonomically adjusted workstation. They were assigned to a task of typing for 5 minutes and were given a 10 minutes resting with hands in their lap. For the initial experiment, the desk height was fixed to standard desk height(65.0 cm) recommended by ANSI and latter adjusted to a higher desk height (72.8 cm) for this study such that the subjects experienced slight elevation of shoulders. The monitor position initially at the center on the desk and latter left site of the desk (45o from monitorneck axles). The keyboard was positioned to an optimal distance (15 cm from the desk edge) and an abnormal distance (30 cm). Five muscle groups (paraspinal muscles, upper trapezium muscle, supraspinatus muscle, infraspinatus muscle, and rhomboid muscle) were selected for the study. The data of SEMG were analyzed by 2x2x2xs mixed factorial design. RESULTS: The results were as follows: 1. SEMG activity recorded from the paraspinal muscles were significantly higher when the angle of the monitor adjusted to 45 degree from the center of the desk.. 2. SEMG activity recorded from the upper trapezius/supraspinatus/infraspinatus muscles were significantly higher when the hight of the desk was elevated from the recommended height.3. SEMG activity from the rhomboid muscle showed no significantiy difference in all test conditions. CONCLUSIONS: The results of thls study confirm that the helght of a VDT workstation and the angle of the monitor are risk factors of upper extremity cumulative trauma disorders. Also SEMG would be useful for measuring muscle activities during workstation assessment.
Cumulative Trauma Disorders ; Electromyography* ; Female ; Hand ; Humans ; Muscles ; Paraspinal Muscles ; Risk Factors ; Shoulder ; Upper Extremity ; Volunteers

The present study has been undertaken to investigate the values of serum lipids with hypertension and ischemic heart diseases. Serum lipids and lipoproteins were measured from 231 cases of hypertension, 23 cases of angina pectoris, 18 cases of acute myocardial infarction and 67 healthy adults together with normal value as controls. The results obtained were as follows: 1. The mean values of serum lipids in healthy adults were 111.0+/-41.3mg% for triglyceride, 171.2+/-33.5mg% for cholesterol, 175.1+/-36.3mg% for phospholipid, 479.9+/-82.6mg% for total lipid. The values of serum lipoproteins were 219.8+/-46.8mg% for beta-lipoprotein, 93.4+/-53.8mg% for pre beta-lipoprotein and 164.1+/-40.8mg% for alpha-lipoprotein. The values of cholesterol, triglyceride and beta-lipoprotein were gradually increased with aging. 2. The mean values of serum lipids in patients with hypertension were 176.3+/-94.5mg% for triglyceride, 199.7+/-36.9mg% for cholesterol, 207.8+/-38.0mg% for phospholipid, 601.9+/-139.9mg% for total lipid. The values of serum lipoproteins were 266.0+/-73.5mg% for beta-lipoprotein, 147.7+/-89.5mg% for pre-beta-lipoprotein and 187.7+/-56.7mg% for alpha-lipoprotein. The serum lipid values in patients with hypertension were significantly higher than those in healthy controls. 3. The mean values of serum lipids and lipoproteins in patients with angina pectoris were significantly higher than in healthy controls. 4. The serum lipid values in general were higher rather in patients with acute myocardial infarction than healthy controls, but the values of serum phospholipid, pre-beta-lipoprotein and alpha-lipoprotein in them were not significantly higher than those in healthy controls. 5. The values of serum HDL-cholesterol in patients with hypertension, anginal pectoris and acute myocardial infarction were lower than those in healthy controls. The values of serum HDL-cholesterol in all cases were in general higher rather in femal than male.
Adult ; Aging ; Angina Pectoris ; Cholesterol ; Humans ; Hypertension* ; Lipoproteins ; Male ; Myocardial Infarction ; Myocardial Ischemia* ; Reference Values ; Triglycerides

PURPOSE: The purpose of the experiment with the rabbit was to evaluate the effect of human amniotic membrane transplantation in the extraocular muscle surgery area after the operation. METHODS: Five millimeters resection of both superior rectus muscles was performed in eight rabbits. The left eye was served as a control, and the right eye was covered with human amniotic membrane at the site where the operation was performed. Each rabbit was graded according to the degree of adhesion. A histological comparison was done after enucleation. RESULTS: At one week after the operation, it was discovered that the inflammation of the human amniotic membrane transplantation site was suppressed, but at two weeks the human amniotic membrane transplantation site was significantly inflamed. However, the inflammation decreased at six weeks. CONCLUSIONS: This study shows that strabismus surgery with transplantation of human amniotic membrane may reduce postoperative inflammation and adhesion in strabismus surgery after one week. However, after two weeks the inflammation will increase and produce more postoperative adhesion. After six weeks there was no significant inflammation in comparison to the control group.
Amnion* ; Humans ; Inflammation ; Muscles ; Rabbits* ; Strabismus* ; Tissue Adhesions*

Few patients with traumatic aortic laceration remain undiagnosed and survive long enough to develop a chronic aneurysm. Such aneurysms are frequently asymptomatic: alternatively, they may manifest chest pain, dysphagia, bronchial irritation, or sudden death. A case of aortobronchial fistula secondary to a chronic post-traumatic aneurysm of the aortic isthmus is presented. Hemoptysis was the main sign. The affected segment of the thoracic aorta was repaired with a Hemashield patch and a left upper lobectomy was performed.
Aneurysm ; Aorta, Thoracic ; Chest Pain ; Death, Sudden ; Deglutition Disorders ; Fistula* ; Hemoptysis ; Humans ; Lacerations ; Thorax*

We developed the system that enables patients to be treated at home during their daily life through digital telemetry and public communication line. In this study, video conference based remote examination and wireless telemetry were integrated together to form a remote monitoring homecare system, and underwent the validation. Test ECG signals were transmitted wirelessly unhindering the person's movement in one floor of our building, and the stability was assessed. The signal were transmitted to remote host via ISDN, with the patient's voice and moving image. To control the system and manage files remotely, the interactive model was devised for this study.
Electrocardiography ; Humans ; Telemetry* ; Voice

BACKGROUND: As the number of elder patients grows, spinal anesthesia for such patients are increasing significantly. Any effort is needed to use the least anesthetic drug for maintaining the anesthesia while avoiding hazards of cardio-pulmonary complications. METHODS: American Society of Anesthesiologists physical status classification I and II, Forty five elderly patients (> or = 60 years) who received transurethral resection of the prostate or transurethral resection of the bladder tumor were allocated randomly into three treatment groups. The DMT 0.5 group was designed as with dexmedetomidine 0.5 microg/kg while the DMT 1.0 group has a 1 microg/kg intravenous injection over 10 min before anesthetic induction. The Control group was designed to get a normal saline. Each group was compared regarding the maximum sensory block level, extension of anesthesia, degree of motor block, level of sedation, VAS score and complications. RESULTS: There were no significant differences among the 3 treatment groups regarding the maximum level of sensory block and motor block. However, the duration of sensory block was significantly longer in DMT 1.0 group than in the control group (P = 0.045). Both DMT 1.0 group (median = 3, range = 2-6) and DMT 0.5 group (median = 3, range = 1-6) showed a mean value of 3-4 Ramsay sedation score, which resulted in more excessive sedation and significantly greater incidence of bradycardia compared to the control group. No complications such as hypotension, nausea, tremor, and hypoxia were found during this investigation. CONCLUSIONS: In elder patients, the DMT 1.0 group is effective in duration of sensory block and is superior in the aspect of prolonged duration of sensory block compared to the DMT 0.5 group.
Aged* ; Anesthesia ; Anesthesia, Spinal* ; Anoxia ; Appointments and Schedules* ; Bradycardia ; Classification ; Dexmedetomidine* ; Humans ; Hypotension ; Incidence ; Injections, Intravenous ; Nausea ; Prostate ; Tremor ; Urinary Bladder Neoplasms

The most common primary heart tumor in infants is the rhabdomyoma.It is known that tuberous sclerosis is found in half of the patients with cardiac rhabdomyoma. Because the prognosis of this tumor associated with subaortic stenosis is poor,the surgical intervention is indicated.We report one case of left ventricular rhabdomyoma with tuberous sclerosis.
Constriction, Pathologic ; Heart Neoplasms ; Humans ; Infant ; Prognosis ; Rhabdomyoma* ; Tuberous Sclerosis*

Cytologic findings from five cases with variable types of Hodgkin's disease were reviewed with special emphasis on the Reed-Sternberg (R-S) cells and their variants, Typical R-S and Hodgkin's cells were mono- or binucleated, and nuclei had rounded smooth con- tour. Acidophilic prominent nucleoli with perinucleolar halo were conspicuous. In comparison to typical Reed-Sternberg cells, L & H (lymphocytic and histiocytic) cells in the lymphocyte predominant type tended to show pop-corn like irregular nuclear contour and to lack the prominent nucleoli. Lacunar cells in the nodular sclerosis type had multilobated nuclei with prominent acidophilic nucleoli. There was no prominent perinucleolar halo in L & H and lacunar cells. In conjuction with the number of Reed-Sternberg cells and back ground findings observed on the smears, the characteristic features of R-S cells and their variants allowed to make typing of Hodgkin's disease.
Epidemiologic Studies* ; Hodgkin Disease ; Lymphocytes ; Multiple Myeloma ; Nephrotic Syndrome* ; Reed-Sternberg Cells ; Sclerosis

Blood samples were collected from 140 institutionalized children aged 0~9 at Goyang gun. Kyunggi Do, Korea. The venous blood was taken and isolated serum was used for Haemagglutination(HA) test.1. Out of 140 samples, the positive rate of HA titer was 35.7 per cent. No significant differences was recognized by sex gropus. 2. When subdivided into the 0~4 and 5~9 years age groups, the positive rate obtained 30.4 per cent and 34.1 per cent respectively, which was no significant difference. 3. The positive rate of HA titirs in various diseases was 31.0 percent in total, being 50 per cent in mental retardation cases, 100 percent in delayed speech and hearing loss.
Child ; Child, Institutionalized* ; Gyeonggi-do ; Hearing Loss ; Humans ; Intellectual Disability ; Korea ; Toxoplasma*

PURPOSE: The efficacy of the artificial urinary sphincter(AUS) in treating sphincteric incontinence has been clearly demonstrated. We report on 20 years of experience using artificial sphincter implantation at a single institute. MATERIALS AND METHODS: The follow-up data for 37 patients who received AUS(AMS 800(TM)) implantation between 1987 and 2006 at Yonsei University were available for this study. We investigated various components of the medical records, such as the number of pads used per day, results of pre-operative urodynamic studies, operative and post-operative complications, and revision rate. RESULTS: Mean patient age was 35.6 years(range 15-64 years), and mean follow-up duration was 12.4 years(range 1.4-19.8 years). Of the 37 patients, 21 had neurogenic bladder, and 9 had traumatic injury. Other causes of incontinence included post-operative complications(4 patients) and congenital anomalies(3 patients). The cuffs were placed were in the bladder necks of 21 patients and in the bulbous urethrae of 16 patients. The average number of pads used daily decreased significantly from 6.2 to 1.2 after the operation, and 27 patients(72.9%) were able to maintain 'dry-up status' (number of pads used< or=1). A total of 32 artificial sphincters remained in place(86.4% survival rate), with 8 revisions(21.6%) required secondary to infection, mechanical failure, or urethral stone. CONCLUSIONS: AUS implantation is a safe and durable treatment for urinary incontinence in patients with intrinsic sphincter deficiency from various underlying diseases.
Follow-Up Studies ; Humans ; Medical Records ; Neck ; Urethra ; Urinary Bladder ; Urinary Bladder, Neurogenic ; Urinary Incontinence ; Urinary Sphincter, Artificial ; Urodynamics