Published guidelines from the Center for Disease Control (CDC) “strongly recommended” gas sterilization or 30 minutes of high-level
disinfection with either 2 percent glutaradehyde or 6 percent hydrogen peroxide following each flexible endoscope cleansing
for proper care. The guidelines were proposed on the basis of previous CDC studies performed on glutaraldehyde disinfection
of respiratory equipment. A prospective study was performed culturing flexible endoscopes following cannulation of the lower
gastroinstestinal tract and cleansing. A uniform endoscope cleansing method without gas sterilization or high-level disinfection
was used between patients. Thirty aerobic and 30 anaerobic RODAC bacterial culturings revealed no obligate anaerobic organism
growth and only sparse, aerobic, environmental and cutaneous organism growth. These were no instances of documented or suspected
postendoscopy infectious complications. Our results indicate that high-level disinfection and gas sterilization of flexible
endoscopes are not necessary to prevent bacterial disease transmission from patient to patient.
Read at the joint meeting of the American Society of Colon and Rectal Surgeons with the Section of Colo-Proctology, Royal
Society of Medicine, and the Section of Colonic and Rectal Surgery, Royal Australasian College of Surgeons, New Orleans, Louisiana,
May 6 to 11, 1984. 相似文献
Laboratory tests have been carried out on sample strips of an acrylic denture-base material for a range of temperatures in excess of that recommended by the manufacturers of a leading proprietary denture cleaning agent.
The results show that water temperatures of 80'C and above have adverse effects on the visual appearance of correctly cured acrylic strips, producing a bleached or whitened appearance. In these samples, changes in the physical properties were seen as a breakdown of the surface layer, a reduction in light transmission and transverse bend strength, and an increase in surface hardness.
The conclusion from this study is that the temperature of the water used by patients in their cleaning procedures is critical, and that the effects observed might be the result of a thermal shock experienced on immersion with microcrazing of the surface layer. 相似文献