PubMed · 9625641
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C L Cole. 1998-06-11. A computer-assisted management program for antiinfective agents.. https://pubmed.ncbi.nlm.nih.gov/9625641/
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Errors in antimicrobial prophylaxis for surgical patients remain one of the most frequent types of medication errors in hospitals. Failure to administer the first dose of antimicrobial prophylaxis within the 2-h window of time before incision is associated with 2- to 6-fold increases in rates of surgical site infection. Optimal use of antimicrobial prophylaxis includes proper case selection; use of appropriate agents; proper dosing, route of administration, timing, and duration; and intraoperative dosing when appropriate. Effective use of antimicrobial prophylaxis also requires monitoring of and feedback on patterns of use. Programs to improve antimicrobial prophylaxis should be multidisciplinary and should aim to improve use of medications, not simply to change physician practice patterns. The LDS Hospital experience demonstrates the clinical and financial benefits of such a program and also shows the pitfalls of and great difficulties associated with changing systems of care.
The uptake and controlled release of model active substances from poly(ethylene oxide), (PEO), hydrogels synthesized by irradiation were investigated. For the characterization of network structure of PEO hydrogels, swelling properties in water and the number average molecular weight between crosslinks were determined. Salicylic acid, phthalic acid and resorcinol were used as model substances for their controlled release from PEO hydrogels. The effects of dose rate, total dose and chemical structure of active substance on the uptake and release have been studied. The active substance uptake capacity of hydrogels was found to be lowest for phthalic acid and highest for resorcinol in the gel system obtained by irradiation both at low and high dose rates. The release was lowest both in rate and in total amounts in hydrogels containing phthalic acid, more in those with salicylic acid and highest in those with resorcinol. The physical and chemical factors affecting the release of model compounds such as the network structure of hydrogels and hydrogen bond formation between the adsorbent and PEO chains were discussed.