BACKGROUND: An intensive and ongoing surveillance program is effective for preventing the hospital infections. but it is time-consuming to detect all cases of hospital infections. So, labratory-based surveillance was performed with the aid of personal computer. The software 'MICRO' that coded and used privately was written in FoxPro 2.0 code. METHODS: All results of the microbiologic culture were stocked in the software and hospital infections were detected by review d an positive microbiology reports and daily ward rounds with examination of patient progress notes. If there was any suggestion or evidence of outbreak of hospital infections the data were analyzed by the 'MICRO' and reported to hospital infections control committee. RESULTS: We detected the outbreak of nosoccmial pneumonia due to a putative single species of methicillin-resistant Staphylococcus aureus in the neurosurgical ward at May, 1996. The suggestive outbreak of wound infections in the 7th ward at April, 1966 was denied by the 'MICRO'. The possible outbreak of 10th ward at May, 1996 was detected. CONCLUSIONS: We describe a surveillance method that identifies excessive rates of positive culture on patient location culture site, and organism indentification using the 'MICRO'. We were able to monitor patient-to-patient cross-infections and possible breakdowns in proper technique, and expect suggestive outbreak of infections early. These results demonstrate that computer analysis of positive culture rates by 'MICRO' is a sensitive and time-efficient method for detecting potentially preventable hospital infections.
Cross Infection* ; Humans ; Methicillin-Resistant Staphylococcus aureus ; Microcomputers* ; Pneumonia ; Wound Infection

20-40% of cases of acute transverse myelitis are attributed to viral infections, although the specific viral etiology is only rarely identified. We have studied one patient with transverse myelitis in association with acute hepatitis B virus infection. Hepatitis virus should be considered as rare cause of transverse myelitis.
Hepatitis B virus* ; Hepatitis B* ; Hepatitis Viruses ; Hepatitis* ; Humans ; Myelitis, Transverse*

No abstract available.

One hundred cases of anterior communicating artery aneurysms, operated upon during a 10-year period from 1977 to 1987, were analysed to study the microsurgical anatomy of the aneurysms. All of the cases were operated by direct intracranial approach using a operating microscope. Findings of preoperative four-vessel angiogram, operative microphotographs, operative microvideo tapes, and operator's drawings with narratives were investigated on in order to provide the detaild microsurgical anatomy of the aneurysms to obtain the classification according to it. The results were as follows; 1) The anatomical variations of the anterior portion of circle of Willis were as follows;right A1 hypoplasia in 23 cases, left A1 hypoplasia in 9 cases, left A1 aplasia in 3 cases, duplication of anterior communicating artery in 3 cases, and fenestration of anterior communicating artery in 1 case. 2) The diameter of the aneurysm was as follows;5-10mm in 73% below 5mm in 16%, and over 10mm in 11%. 3) Classification of the anterior communicating artery aneurysms according to its direction were as follows;anterior directions in 65%, posterior directions in 16%, superior directions in 10%, inferior direction in 9%. 4) The frequency of hemorrhage were as follows;One bleeding in 65%, Two bleedings in 25%, more than three bleedings in 10%. 5) The vasospasm was observed in 26%, the hydrocephalus in 44%. 6) The posteriorly directing aneurysms showed worse preoperative state than anteriorly directing ones, and the diameter and the direction of anterior communicating artery aneurysm has no relationship with hydrocephalus, vasospasm, and rebleeding. 7) Overall mortality was 5%. Psychotic disturbance, one of the significant complications of rupture of the anterior communicating artery aneurysms, was observed in 13% and among these 6% were observed after operation. Frontal lobe syndrome, organic brain syndrome, depression, confusion, mutism, memory disturbance were manifestations of psychotic disfurbances.
Aneurysm ; Arteries ; Brain ; Circle of Willis ; Classification* ; Depression ; Frontal Lobe ; Hemorrhage ; Hydrocephalus ; Intracranial Aneurysm* ; Memory ; Mortality ; Mutism ; Rupture

No abstract available.
Occupational Diseases*

PURPOSE: This study was intended to evaluate the positional relationship between the hyoid bone and the mandible in patients with mandibular protrusion after mandibular set-back surgery by means of 3D-CT. MATERIALS AND METHODS: Preoperative(3 weeks before) and postoperative (6 weeks after) 3D-CT and cephalogram were taken on 32 patients(12 male, 20 female, mean age of 23.2) treated by bilateral sagittal split osteotomy with rigid fixation. The angular measurement on 3D-CT basilar view were deviation of Me and H, long axis angle of left and right cornu majus. The lineal measurement on 3D-CT basilar view were composed of intercondylar line and coordinates(x,y) of Me and H. The angular and lineal measurement of lateral cephalogram were composed of mandibular plane angle, SNA, SNB, ANB, FH-NA and FH-NB, and coordinates(x,y) of B, Pog, Me and H, PAS, Lpw, MPH and IAS. On the frontal cephalogram, deviation of Me were evaluated. RESULTS: The mean mandibular set-back was 8.0mm horizontally and mandibular plane angle was slightly increased. The hyoid bone was displaced postero-inferiorly, the distance between MP(mandibular plane) and H(hyoid bone) was increased and the posterior airway space values (PAS, Lpw, IAS) were decreased. The coordinates Me(x,y), H(x,y) and deviation angle Me' and H'were revealed the strong positive correlation. CONCLUSION: The results revealed that the horizontal, vertical and transverse relationship of the mandibular and the hyoid bone movements were significantly correlated in patients performed mandibular set-back surgery.
Axis, Cervical Vertebra ; Female ; Humans ; Hyoid Bone* ; Male ; Mandible* ; Orthognathic Surgery* ; Osteotomy

Heterotopic partial liver transplantation(HLT) in the rat is relatively simple method to orthotopic liver transplantation. Addition of mesocaval shunt which diverts almost intestinal blood to systemic circulation provides only splenopancreaticoduodenal blood for the graft. The usefulness of our novel model is first, evaluating the pure effect of pancreaticoduodenal blood to liver regeneration, second, evaluating the contribution of splanchnic viscera to liver reperfusion injury. In the first group (conventional HLT, C-HLT), the thirty percent graft liver was transplanted just below the host liver with whole portal blood input. In the second group(mesocaval shunt added HLT, M-HLT), the superior mesenteric vein was diverted to systemic circulation and portal blood from the spleen-pancreas-duodenum supplied the graft. The graft weight at 2 posttransplant weeks was significantly increased in the C-HLT group compared with the M-HLT group, which suggests pancreatic blood alone is not sufficient to regenerate the partial liver grafts. There was no significant difference in the graft survival between two groups, which implies the influence of intestine to postreperfusion injury is negligible.
Animals ; Graft Survival ; Intestines ; Liver Regeneration ; Liver Transplantation* ; Liver* ; Mesenteric Veins ; Models, Animal* ; Rats* ; Reperfusion Injury ; Transplants ; Viscera

In a murine model system, enhancement of the total IgA and rotavirus-specific IgA of suckling mice was measured by ELISA with the intestinal fluid following oral administration of murine rotavirus EC (EDIM-Cambridge) strain. In the EC strain-administered group, the geometric mean titers (GMT) of total IgAs were 512 and 91 at 1 and 2 week postinfection, respectively. On the other hand, the GMTs of the rotavirus-specific IgAs were 108 and 3 at the same periods, respectively. Thus increase in the total IgAs was 64 folds and that in the rotavirus-specific IgAs was 43 folds compared with the negative control group. As the maximal titers of both the total and rotavirus-specific IgAs were observed at 1 week decreasing until 2 weeks after infection, it is evident that the GMT of the total IgA implies that of rotavirus-specific IgA. In our ELISA system, whose specificity was verified by Western blot analysis, the total IgA in the administered group was determined to be 40-400 ng per 1 ml of the intestinal fluid. Therefore it is concluded that determination of the rotavirus-specific IgA in murine models can be a sensitive indication of rotavirus infection, and will be another promising tool in viral challenge experiments in vaccine development.
Administration, Oral ; Animals ; Blotting, Western ; Enzyme-Linked Immunosorbent Assay ; Hand ; Immunoglobulin A* ; Mice ; Mice, Inbred ICR* ; Rotavirus Infections ; Rotavirus* ; Sensitivity and Specificity

In order to investigate the efficacy and safety of oral cilazapril, a new angiotensin converting enzyme inhibitor, on essential hypertension, a single daily dose of 2.5 to 5.0mg cilazapril was administered in 30 hypertensive patients with diastolic blood pressure in the range of 95??15mmHg while off all other anti-hypertensive agents for 10 weeks. Blood pressure and heart rate were measured every 2 weeks. The complete blood count with platelet count, blood chemistry by SMA-12 including lactic dehydrogenase and serum electrolytes, and urinalysis were performed at 4th and 10th week of therapy. The electrocardiography was performed at the beginning and the end of treatment period. Any kinds of side effects were actively questioned by the examining physicians. The following results were obtained : 1) The mean age was 49.2 years, and the ratio of male-to-female was 1 : 1.3. 2) Blood pressure started to fall significantly within 2 weeks of treatment with cliazpril 2.5mg(M+/-S.E., 15.4+/-17.4mmHg vs 138.5+/-23.3, 100.3+/-6.2 vs 89.4+/-6.6, p<0.05), and after 6 weeks of treatment with a mean dosage of 2.84mg. diastolic blood pressure of all subjects was maintained below 90mmHg throughout the rest of trial. 3) Pulse rate or body weight were not significantly changed during the entire treatment period(69.3+/-6.0/min vs 10th week : 69.0+/-7.7, 64.7+/-7.4kg vs 63.6+/-6.7, p>0.05). 4) There were no significant changes in blood chemistry including blood sugar, cholesterol and electrolytes, except mild changes of serum creativine and alkaline phosphatase values. 5) Hematologic findings, urinalysis and electrocardiographic findings remained unchanged. 6)Side effects were mostly mild in nature without potentially serious episodes(dry cough : 20%, indigestion, headache, dizziness, in order), but there was 1 cases in whom the dosage was redyced due to postural hypotension. From the above results, cilazapril with the dosage of 2.5 to 5.0mg was effectvie and well tolerated in essential hypertensive patients with diastolic blood pressure of 95 to 115mmHg, and cilazapril seems to be appropriate for monotherapy of mild to moderate hypertensive patients.
Alkaline Phosphatase ; Antihypertensive Agents ; Blood Cell Count ; Blood Glucose ; Blood Pressure ; Body Weight ; Chemistry ; Cholesterol ; Cilazapril* ; Cough ; Dizziness ; Dyspepsia ; Electrocardiography ; Electrolytes ; Headache ; Heart Rate ; Humans ; Hypertension ; Hypotension, Orthostatic ; Oxidoreductases ; Peptidyl-Dipeptidase A ; Platelet Count ; Urinalysis

BACKGROUND: It has been reported that nitroglycerin relaxes not only vascular smooth muscle but also uterine smooth muscle. The aim of the present study was to investigate the effect of nitroglycerin on rat uterine contractile activity in vitro. The effects of nitroglycerin on myometrial spontaneous activity and oxytocin-induced contractions were also observed. METHODS: Uterine smooth muscle tissues were obtained from non-pregnant female rats (n = 21). The uterine segments were mounted in tissue baths. After spontaneous or oxytocin-induced activity had been accomplished, nitroglycerin in various concentrations was added to the bath and the effects were continuously registered. RESULTS: Nitroglycerin induced a dose-dependent inhibition of spontaneous as well as oxytocin-induced myometrial contractile activity. Complete muscular relaxation on spontaneous contractility was obtained at a concentration of 50 microgram/ml. Complete muscular relaxation on oxytocin-induced contractility was obtained at a concentration of 75 microgram/ml. CONCLUSIONS: Nitroglycerin inhibited the uterine contractile response to exogenous oxytocin as well as spontaneous in the estrous rat.
Animals ; Baths ; Female ; Humans ; Muscle, Smooth* ; Muscle, Smooth, Vascular ; Nitroglycerin* ; Oxytocin ; Rats* ; Relaxation