Cellulose fibers are a major industrial input, but due to their irregular shape and anisotropic material response, accurate material characterization is difficult. Single fiber tensile testing is the most popular way to estimate the material properties of individual fibers. However, such tests can only be performed along the axis of the fiber and are associated with problems of enforcing restraints.
View Article and Find Full Text PDFThis is the first report of a major foodborne outbreak of enterohaemorrhagic Escherichia coli (EHEC) in Sweden. It occurred among the nursing staff at a children's hospital with approximately 1600 employees. Contaminated lettuce was the most likely source of infection.
View Article and Find Full Text PDFNosocomial spread of HCV and other blood-borne pathogens continues to occur in the Western world despite the screening of blood products. Using molecular and epidemiological methods we investigated an outbreak of HCV involving 3 patients following percutaneous coronary intervention at a Swedish hospital. The most likely mode of transmission was contamination of a multidose vial of saline used for the flushing of intravenous catheters.
View Article and Find Full Text PDFBackground: The aim of our study was to test the feasibility of culturing Helicobacter pylori directly from biopsies aimed for rapid urease test in routine clinical practice.
Materials And Methods: In 260 consecutive patients referred for gastroscopy because of dyspepsia one antral biopsy was routinely used for our "in house" rapid urease test (RUT). Positive biopsies were placed in a transport medium and sent to the laboratory.
Background/aims: This study was undertaken to validate the usefulness of the culture of duodenal biopsy specimens and gastric aspirate compared to the culture of small bowel aspirate for diagnosing small intestinal bacterial overgrowth. We also investigated the occurrence of predisposing conditions in these patients.
Methodology: Seventy five consecutive patients, admitted because of symptoms which caused us to suspect small intestinal bacterial overgrowth, were studied.
Aim: Primary resistance of H pylori strains to antimicrobials has direct therapeutical implications. For this reason we studied the prevalence of primary resistance of H pylori of Sweden, in a regional setting.
Material And Methods: A total of 244 patients referred to our endoscopy unit have been evaluated prospectively for the occurrence of H pylori.
Eur J Orthop Surg Traumatol
May 1996
Bacterial growth in relation to suction drains and suction drain tubes following total hip replacements was studied in 105 consecutive patients. All the patients were operated on in a Charnley Howorth Mark II sterile enclosure without walls, but with a body exhaust system and routine antimicrobial prophylaxis. Specimens for culture were taken from the suction drain tip, from inside the suction tube and the incision site.
View Article and Find Full Text PDFActa Obstet Gynecol Scand
February 1993
Bacterial vaginosis (BV) has been considered by many investigators to be a risk factor for preterm labor. We have followed vaginal pH and the persistence of clue cells in Papanicolaou stained smears in 119 pregnant women during the course of pregnancy. Of 19 patients with clue cells in their smears during the first trimester, 11 (58%) still had clue cells at the second visit during the third trimester.
View Article and Find Full Text PDFBacterial ascending from the cervix may infect the membranes and amniotic fluid, contributing to their premature rupture. In the present in vitro study, isolated amniotic membranes were exposed to different concentrations of disintegrated bacterial cells. Collagenolysis was estimated by the ratio of acid-soluble/insoluble hydroxyproline.
View Article and Find Full Text PDFObjective: To find out if there were any differences in infection rates if acute traumatic soft tissue wounds were cleaned with tap water instead of sterile saline.
Design: Randomised study.
Setting: Emergency department at one city hospital.
Microorganisms associated with bacterial vaginosis are commonly recovered from the amniotic fluid and chorion-amnion of patients who deliver prematurely. Bacteria closely related to those causing bacterial vaginosis may play a role in the initiation of uterine contractions, ripening of the cervix and weakening of the fetal membranes by stimulating prostaglandin synthesis. In the present investigation, cervical mucus was collected by brush from early pregnant women with and without bacterial vaginosis.
View Article and Find Full Text PDFSeptic shock from intraperitoneal (i.p.) injection of live Escherichia coli bacteria in rats induces marked pathophysiological changes, including 40% decrease in plasma volume (PV), cardiac output, and oxygen consumption with 100% mortality within 24 hr.
View Article and Find Full Text PDFThe concentration of secretory immunoglobulin A (IgA) in the vaginal fluid of 20 untreated post-menopausal women (aged 75.4 +/- 1.4 years) was compared with the levels in a group of 20 post-menopausal women (aged 73.
View Article and Find Full Text PDF10 pregnant women with bacterial vaginosis were treated vaginally with a low-pH lactate gel intermittently during 6 weeks. Reappearance of a lactobacillus-dominated vaginal flora was observed after a few days treatment in all patients. All women experienced a subjective disappearance of abnormal vaginal discharge and malodour.
View Article and Find Full Text PDFGynecol Obstet Invest
January 1991
Intermittent treatment with an acid lactate gel (Lactal, ACO, Sweden) reduced symptoms of bacterial vaginosis (BV) and promoted the reestablishment of the normal vaginal flora of lactobacilli. Forty-two women seriously affected by recurrent BV were initially given acid gel (lactate gel, pH 3.8, 5 ml) to be inserted into the vagina daily for 7 consecutive days.
View Article and Find Full Text PDFResistance of the fecal bacterial flora to doxycycline was studied before, during and after systemic prophylaxis with that agent in 24 patients undergoing surgery for complex intestinal disorders, 14 of whom had received antibiotics during the preceding 6 months. Fecal specimens for bacteriologic culture were obtained preoperatively, at operation and 3 days, 1 week and 4 weeks postoperatively. In nine patients (38%) there was dominance of doxycycline-resistant strains preoperatively.
View Article and Find Full Text PDFThis review is a historical summary of twenty years of experience with preoperative whole body disinfection in the western part of Sweden.
View Article and Find Full Text PDFIn the circle absorber system, a decrease in fresh gas flow means a higher degree of rebreathing, and, consequently, a higher temperature and humidity within the system. With our present hygienic routines, the circle system tubings are changed and decontaminated once daily. Thus, the same circle system is used for several patients each day.
View Article and Find Full Text PDFActa Obstet Gynecol Scand Suppl
September 1987
In a geriatric hospital the routines of one ward were modified with the intention of removing indwelling catheters from all patients admitted to the ward. A continence training programme had been designed during the preceding 6 months. A total of 124 patients were admitted with indwelling catheters during a period of 18 months.
View Article and Find Full Text PDFThis study evaluates the relative effects of 2 combined antibiotics, a crystalloid solution, 4 3% colloid solutions, and a pharmacologic dose of corticosteroids, given alone and in combination for the treatment of Escherichia coli-induced septic shock. All treatments began 5.5 h after bacterial injection.
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