Study finds hospital mobile phones transmit message of MRSA
Stressed Out Nurses Weekly, March 16, 2009
A study recently published in the Annals of Clinical Microbiology and Antimicrobials suggests hospital phones could be spreading more than information.
Medical researchers from the Ondokuz Mayis University, located in Samsun, Turkey, tested samples from the hands of 200 ICU and OR healthcare workers from various hospitals, and performed cultures on 200 mobile phones, and found 95% of the phones were contaminated with bacteria including MRSA. Other microorganisms that surfaced have been linked to hospital-acquired infections. The study, which states the bacteria from both examinations was similar, suggests the hospital phones may allow for increased patient-to-patient transmission of bacteria in hospital settings.
In addition, researchers found only 10% of healthcare workers routinely cleaned hospital phones.
Study authors stress the need for healthcare workers to be trained on firm infection control practices, hand hygiene, and environmental disinfection.
They recommend preventative measures, such as regular decontamination of hospital phones with "alcohol containing disinfectant materials" and the use of "antimicrobial additive materials" to cut cross-infection.
Source: Annals of Clinical Microbiology and Antimicrobials
Showing posts with label bacteria. Show all posts
Showing posts with label bacteria. Show all posts
Thursday, April 9, 2009
Hazards: Ambulance Stethoscopes May Pose Risk
The New York Times
By ERIC NAGOURNEY
Stethoscopes carried by ambulance crews are not always cleaned as often as they should be, and as a result they may be exposing some patients to drug-resistant bacteria, a new study reports.
Researchers who looked at stethoscopes used by emergency medical services workers in New Jersey found that a significant number carried methicillin-resistant Staphylococcus aureus, bacteria known as MRSA that are resistant to standard drugs.
Some of the ambulance workers could not recall the last time the instruments had been cleaned, said the researchers, whose report appears in the current issue of Prehospital Emergency Care.
The study’s lead author, Dr. Mark A. Merlin of Robert Wood Johnson Medical School, said it was unclear how big a threat MRSA on a stethoscope posed to a patient. But as incidents of infection by the bacteria become more common, and with the possibility that it will become more resistant to antibiotics, it is important to reduce its spread, he said.
Researchers asked ambulance crews arriving at an emergency department over a 24-hour period to let their stethoscopes be tested. They also asked when the instruments had last been cleaned.
Of 50 stethoscopes tested, 16 had the bacteria, which a simple alcohol swab is usually enough to kill, the researchers said. “The concept of cleaning an entire ambulance after every patient is not practical,” they wrote. “Cleaning a stethoscope, however, is not labor-intensive, does not require much time, and does not require any special equipment beyond currently stocked items.”
By ERIC NAGOURNEY
Stethoscopes carried by ambulance crews are not always cleaned as often as they should be, and as a result they may be exposing some patients to drug-resistant bacteria, a new study reports.
Researchers who looked at stethoscopes used by emergency medical services workers in New Jersey found that a significant number carried methicillin-resistant Staphylococcus aureus, bacteria known as MRSA that are resistant to standard drugs.
Some of the ambulance workers could not recall the last time the instruments had been cleaned, said the researchers, whose report appears in the current issue of Prehospital Emergency Care.
The study’s lead author, Dr. Mark A. Merlin of Robert Wood Johnson Medical School, said it was unclear how big a threat MRSA on a stethoscope posed to a patient. But as incidents of infection by the bacteria become more common, and with the possibility that it will become more resistant to antibiotics, it is important to reduce its spread, he said.
Researchers asked ambulance crews arriving at an emergency department over a 24-hour period to let their stethoscopes be tested. They also asked when the instruments had last been cleaned.
Of 50 stethoscopes tested, 16 had the bacteria, which a simple alcohol swab is usually enough to kill, the researchers said. “The concept of cleaning an entire ambulance after every patient is not practical,” they wrote. “Cleaning a stethoscope, however, is not labor-intensive, does not require much time, and does not require any special equipment beyond currently stocked items.”
Wednesday, September 10, 2008
Special Dyes and Lighting Kill MRSA, Research Shows
But new technologies don't replace basic infection control procedures, expert says
By Steven Reinberg, HealthDay Reporter
WEDNESDAY, Sept. 10 (HealthDay News) -- A new kind of paint that releases titanium dioxide when exposed to fluorescent light and a green dye for wounds that gives off toxic molecules when activated by near-infrared light could both kill the deadly superbug known as MRSA, two new studies claim.
MRSA stands for methicillin-resistant Staphylococcus aureus. It's a strain of staph that's resistant to many antibiotics commonly used to treat it, and it can be fatal. Both reports were presented Tuesday at the Society for General Microbiology Autumn meeting at Trinity College in Dublin.
In the first study, British researcher Lucia Caballero, from Manchester Metropolitan University, found that paint that contained particles of titanium dioxide killed bacteria when it absorbed ultraviolet light.
"If this turns out, the impact is sure to be positive in the area of health," Caballero said.
The same reaction occurs when paints containing titanium dioxide are exposed to infrared light. The researchers found that the paint containing titanium dioxide successfully killed bacteria when the concentration of these nanoparticles was stronger than the normal paint. In fact, they found that all E. coli were killed with fluorescent lights.
"There are many circumstances where it is necessary or desirable to remove or to kill microorganisms found in a biological host or on surfaces," Caballero said. "Maintenance of hygienic standards is essential in hospitals, pharma and the food industry. Surface hygiene could be improved by the action of fluorescent light on catalytic surfaces, such as paints containing nanotitanium, for retarding contamination and saving on cost of cleaning maintenance."
In the second report, Dr. Ghada Omar, from University College London, found that 99 percent of the MRSA bacteria in infected wounds could be killed using a green dye that gives off toxic molecules when activated by infrared light.
"The chemicals produced when the dye is activated harm the bacteria in such a wide variety of ways that it is unlikely bacteria could ever develop resistance to the treatment," Omar said in a statement. "This makes it ideal, and possibly the only option, for treating infections with multiple drug-resistant bacteria, including MRSA."
Infected wounds are a major problem for thousands of hospital patients. Up to 9 percent of hospital-acquired infections occur during surgery and contribute to 77 percent of deaths from operations. These infections increase the length of time patients remain in hospital and increase costs, Omar noted.
Dr. Pascal James Imperato, Dean and Distinguished Service Professor of the Graduate Program in Public Health at SUNY Downstate Medical Center in Brooklyn, said a lot more work needs to be done before these technologies become practical.
"It's very much in the experimental stage at this point," Imperato said. "It's an interesting new development, but one is going to have to see many more studies to determine whether or not this is really going to work."
Dr. Marc Siegel, an associate professor of medicine at New York University School of Medicine, thinks that basic cleanliness can do more to remove the threat of hospital infections than these new technologies.
"This technology is very promising, but it gets us away from the real issue, which is that we have a problem with cleanliness and sterility in hospitals," Siegel said. "The real issue is that doctors don't change their coats, change their gloves enough. We are not using hand wipes."
Siegel noted that soap and water, when used properly, gets rid of most of this bacteria.
"MRSA has been around for 20 years and is a symptom of our inability to properly clean and sterilize facilities, while, at the same time, we are overusing antibiotics," Siegel said.
For more on MRSA, visit the U.S. Centers for Disease Control and Prevention.
SOURCES: Lucia Caballero, Manchester Metropolitan University, U.K.; Marc Siegel, M.D., associate professor, medicine, New York University School of Medicine, New York City, and author, Bird Flu: Everything You Need to Know About the Next Pandemic; Pascal James Imperato, M.D., M.P.H., dean and distinguished service professor, Graduate Program in Public Health, SUNY Downstate Medical Center, Brooklyn, New York; Sept, 9, 2008, presentations, Society for General Microbiology Autumn meeting, Trinity College, Dublin
By Steven Reinberg, HealthDay Reporter
WEDNESDAY, Sept. 10 (HealthDay News) -- A new kind of paint that releases titanium dioxide when exposed to fluorescent light and a green dye for wounds that gives off toxic molecules when activated by near-infrared light could both kill the deadly superbug known as MRSA, two new studies claim.
MRSA stands for methicillin-resistant Staphylococcus aureus. It's a strain of staph that's resistant to many antibiotics commonly used to treat it, and it can be fatal. Both reports were presented Tuesday at the Society for General Microbiology Autumn meeting at Trinity College in Dublin.
In the first study, British researcher Lucia Caballero, from Manchester Metropolitan University, found that paint that contained particles of titanium dioxide killed bacteria when it absorbed ultraviolet light.
"If this turns out, the impact is sure to be positive in the area of health," Caballero said.
The same reaction occurs when paints containing titanium dioxide are exposed to infrared light. The researchers found that the paint containing titanium dioxide successfully killed bacteria when the concentration of these nanoparticles was stronger than the normal paint. In fact, they found that all E. coli were killed with fluorescent lights.
"There are many circumstances where it is necessary or desirable to remove or to kill microorganisms found in a biological host or on surfaces," Caballero said. "Maintenance of hygienic standards is essential in hospitals, pharma and the food industry. Surface hygiene could be improved by the action of fluorescent light on catalytic surfaces, such as paints containing nanotitanium, for retarding contamination and saving on cost of cleaning maintenance."
In the second report, Dr. Ghada Omar, from University College London, found that 99 percent of the MRSA bacteria in infected wounds could be killed using a green dye that gives off toxic molecules when activated by infrared light.
"The chemicals produced when the dye is activated harm the bacteria in such a wide variety of ways that it is unlikely bacteria could ever develop resistance to the treatment," Omar said in a statement. "This makes it ideal, and possibly the only option, for treating infections with multiple drug-resistant bacteria, including MRSA."
Infected wounds are a major problem for thousands of hospital patients. Up to 9 percent of hospital-acquired infections occur during surgery and contribute to 77 percent of deaths from operations. These infections increase the length of time patients remain in hospital and increase costs, Omar noted.
Dr. Pascal James Imperato, Dean and Distinguished Service Professor of the Graduate Program in Public Health at SUNY Downstate Medical Center in Brooklyn, said a lot more work needs to be done before these technologies become practical.
"It's very much in the experimental stage at this point," Imperato said. "It's an interesting new development, but one is going to have to see many more studies to determine whether or not this is really going to work."
Dr. Marc Siegel, an associate professor of medicine at New York University School of Medicine, thinks that basic cleanliness can do more to remove the threat of hospital infections than these new technologies.
"This technology is very promising, but it gets us away from the real issue, which is that we have a problem with cleanliness and sterility in hospitals," Siegel said. "The real issue is that doctors don't change their coats, change their gloves enough. We are not using hand wipes."
Siegel noted that soap and water, when used properly, gets rid of most of this bacteria.
"MRSA has been around for 20 years and is a symptom of our inability to properly clean and sterilize facilities, while, at the same time, we are overusing antibiotics," Siegel said.
For more on MRSA, visit the U.S. Centers for Disease Control and Prevention.
SOURCES: Lucia Caballero, Manchester Metropolitan University, U.K.; Marc Siegel, M.D., associate professor, medicine, New York University School of Medicine, New York City, and author, Bird Flu: Everything You Need to Know About the Next Pandemic; Pascal James Imperato, M.D., M.P.H., dean and distinguished service professor, Graduate Program in Public Health, SUNY Downstate Medical Center, Brooklyn, New York; Sept, 9, 2008, presentations, Society for General Microbiology Autumn meeting, Trinity College, Dublin
Subscribe to:
Posts (Atom)
