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At least 19 recordsLinked to original sources
PubMed1975

[Determination of radiation dosage for radiosterilization of disposable medical equipment].

The study on radiation resistance of 17169 microbial clones was performed including 15376 clones of bacteria isolated from the factory rooms in which injection needles were manufactured and those adjacent to strong sources of ionizing radiation. Out of this number of examined clones, there were selected 955 clones which survived the radiation doses of 2-4 Mrad. Basing on analysis of resistant bacteria according to radiation, the dosages for sterilization of disposable medical equipment are proposed.

Bacteria↗
PubMed1975

[Radiation sterilization of disposable medical equipment].

In the Institute of Nuclear Research in Warsaw, the double-function linear electron accelerator LAE 13/9 has been operating since 1972, currently yielding radiation in the amount equivalent to 1 millon Ci of cobalt 60, thus providing unique research possibilities. The author has discussed the technical base in Poland and Comecon Member Countries, and planning and prognostic in this respect in other countries, as well.

Disposable Equipment↗
PubMedDate not supplied

[Sterilization by ionizing radiations (author's transl)].

The first part summarizes the general characteristics of ionizing radiations and their activity on microorganisms: lethal and mutagenic effects, sensitivity conditions. Different microbial species have different sensitivities: gram negative bacteria are more sensitive (D10 approximately 5-10 Krads), bacterial spores and viruses are more resistant (D10 approximately 1 Megarads). The second part considers the main applications of radiosterilization: some are at present in full development (medical and surgical disposable equipment); others are still at the experimental stage. Practical aspects, determination of sterilizing doses and control of radiosterilization are also described.

Bacteria↗
PubMed1990

Infection control procedures among New Zealand general practitioners: changes since the emergence of HIV infection.

A random sample of 1000 general practitioners in New Zealand were surveyed to assess their infection control procedures in the surgery, particularly since the emergence of the human immunodeficiency virus (HIV). Forty three per cent of the sample routinely used surgical gloves for minor surgical procedures, 8% used gloves for venepuncture, and 7% for blood glucose testing. Thirty two per cent reported a change in glove use since the emergence of HIV infection. Changes in sterilization procedures were also studied. Thirty eight per cent of the sample reported increased use of disposable equipment, and 38% reported changes in the sterilization solution used. Increased time spent by equipment in the sterilizer was reported by 33% of respondents and increased use of an autoclave by 18%. In general, women were more likely to have adopted infection control procedures than men. Infection control was also more common among those doctors having the greatest number of patients requesting HIV testing.

Acquired Immunodeficiency Syndrome↗
PubMed1991

Faulty Superset plastic catheter mounts. A cautionary tale applicable to other mass-produced disposable products.

Nine Superset (Intersurgical Ltd) single-use corrugated plastic catheter mounts were found to be faulty in a boxed batch of 75. The manufacturer's meticulous system of batch coding enabled the source of the problem to be traced quickly. Sporadic faults must be expected to occur in mass-produced disposable equipment and the unusual origin of the defect reported in these catheter mounts is testimony to the way unexpected events can prejudice the most carefully regulated quality control. It is emphasised that the user can help safeguard the community by ensuring that stock is used in strict rotation and that batch numbers are accurately reported when faults arise.

Anesthesiology↗
PubMed1991

Cutting the cost of cataract surgery--a financial audit.

We have analysed the cost of disposable equipment used during cataract surgery by eight different surgeons over a six-month period in the same hospital. By comparing the costs of single-use items used by each surgeon we highlight how significant savings can be made by change of technique (without an adverse effect on surgical outcome).

Cataract Extraction↗
PubMed1988

Evidence for cross-infection in an outbreak of Clostridium difficile-associated diarrhoea in a surgical unit.

Environmental studies were performed in a hospital outbreak of Clostridium difficile-associated diarrhoea. Transmission was associated with the sluice room and the storage room where medical equipment was found to be contaminated with C.difficile. Typing of isolates by antibiotic-susceptibility patterns and profiles of EDTA-extracted proteins showed the presence of an "epidemic" strain common to the majority of patients and environmental sites. Control of the outbreak was achieved by improvement of environmental hygiene and use of disposable equipment.

Adult↗
PubMed1992

Infection with hepatitis A, B, delta, and human immunodeficiency viruses in children receiving cycled cancer chemotherapy.

Serological markers of hepatitis A, B, and Delta and human immunodeficiency viruses were studied in 25 children receiving cancer chemotherapy. Eighty-eight percent had pre-existing HAV immunity which was unaltered by chemotherapy. HDV infection was observed in 8% while HIV was conspicuous by its absence. Active HBV infection, observed in 76% of the children, was asymptomatic in the majority and was accompanied by a high incidence of HBe antigenaemia (57.9%) and its persistence. Pre-existing anti-HBs failed to prevent HBV infection recurrence, which was, however, transient and self-limiting. Multiple blood transfusions and repeated parenteral exposures appeared to be the possible sources of HBV acquisition. Transmission to close contacts was also observed. The study suggests that although HBV vaccine might not be protective against HBV infection in patients receiving cancer chemotherapy, it may prevent its persistence and thereby help in reducing chronic liver disease-related morbidity and a highly infectious reservoir. Strict HBV screening of blood donors, exclusive use of disposable equipment, and vaccination of close contacts of cancer patients is recommended, particularly in HBV endemic third-world countries.

Antineoplastic Agents↗
PubMed1989

Influence of standard and novel LTB4 analogs on human neutrophil chemotaxis measured by the multiwell cap assay.

Standard and novel LTB4 analogs were tested for neutrophil chemoattractant activity using the multiwell cap assay (Evans et al. (1986) Biosc. Rep. 6, 1041). The assay uses disposable equipment and measures chemotaxis by the number of cells able to migrate across the full thickness of cellulose nitrate filters. Under standard conditions (90 min incubation at 37 degrees C in buffer containing 2% bovine albumin), LTB4 and 6-cis-LTB1 had EC50 values of 3.5 and 15,000 nM, respectively. 20-hydroxy-LTB4 was equipotent with LTB4 and exhibited a similar biphasic chemotactic response, however, only one third of the number of cells migrated through the filter. 20-carboxy-LTB4 was inactive up to 1,000 nM. 5-desoxy-((6,7)-cis-cyclopropyl)-LTB2, (6,7)-benzo-LTB2 and 5-desoxy-(8,10)-LTB2 had EC50 values of 11,300, 50,000 and 84,000 nM, respectively. Checkerboard analysis indicated a chemokinetic component of 42% for LTB4 at a concentration causing peak chemotaxis. Reduction of albumin in the buffer to 0.5% increased the apparent potencies of LTB4 and 6-cis-LTB1 five-fold. Since LTB4 is a mediator of inflammation, various anti-inflammatory agents were tested at peak concentrations observed in vivo for in vitro inhibition of LTB4-stimulated chemotaxis in the presence of 0.5% albumin. Under the conditions of the assay, chloroquine diphosphate, dexamethasone, indomethacin, penicillamine, piroxicam and diclofenac sodium were inactive; gold sodium thiomalate was inhibitory (IC50 = 20 microM).

Albumins↗