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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Int+J+Environ+Res+Public+Health
2016 ; 13
(10
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Time Effectiveness of Ultraviolet C Light (UVC) Emitted by Light Emitting Diodes
(LEDs) in Reducing Stethoscope Contamination
#MMPMID27669273
Messina G
; Fattorini M
; Nante N
; Rosadini D
; Serafini A
; Tani M
; Cevenini G
Int J Environ Res Public Health
2016[Sep]; 13
(10
): ä PMID27669273
show ga
Today it is well demonstrated that stethoscopes can be as contaminated as hands,
which are a recognized source of Health-Care Associated Infections (HCAIs).
Ultraviolet C (UVC) light has proven disinfection capacity and the innovative UVC
technology of Light Emitting Diode (LED) shows several potential benefits. To
verify whether the use of UVC LEDs is effective and reliable in stethoscope
membrane disinfection after prolonged use, a pre-post intervention study was
conducted. A total of 1668 five-minute cycles were performed on two UVC LEDs to
simulate their use; thereafter, their disinfection capacity was tested on
stethoscope membranes used on a previously auscultated volunteer. Then, a further
1249 cycles were run and finally the LEDs were tested to assess performance in
reducing experimental contamination by Staphylococcus aureus, Pseudomonas
aeruginosa and Escherichia coli on the stethoscope membrane. Baseline volunteer
contamination identified 104 Colony Forming Units (CFUs) while treated Petri
dishes had 12 and 15 CFUs (p < 0.001). Statistically significant differences (p <
0.001) were also found relating to the reduction of specific bacteria: in
particular, after treatment no CFU were observed for S. aureus and E. coli. UVC
LEDs demonstrated the capacity to maintain high levels of disinfection after more
than 240 h of use and they were effective against common microorganisms that are
causative agents of HCAIs.
|*Disinfection
[MESH]
|*Ultraviolet Rays
[MESH]
|Bacteria
[MESH]
|Cross Infection/prevention & control
[MESH]
|Equipment Contamination/*prevention & control
[MESH]
|Escherichia coli/radiation effects
[MESH]
|Humans
[MESH]
|Pseudomonas aeruginosa/radiation effects
[MESH]
|Staphylococcal Infections/prevention & control
[MESH]