Late last year, we reported on the tragic and needless death of two preemies at White Memorial Hospital in Los Angeles.
The bug that killed the two babies was Pseudomonas aeruginosa, a bacterium infamous for its ability to thrive in numerous environments, its tendency to cause disease in immunocompromised individuals, and its resistance to antibiotics. P. aeruginosa produces toxic proteins that can destroy tissue and interfere with the immune system, and is said to be responsible for 10 percent of the 2 million hospital-acquired infections that happen each year. Of the 2 million infections, nearly 100,000 are fatal.
My article took strong exception to the way this matter was reported to the public, especially since it did not include the rather astounding finding that the very organizations promoting the voluntary standards for sterilization and disinfection were at least partially to blame for the tragedy.
I quoted acclaimed infection control guru Dr. Lawrence F. Muscarella, who believes that AORN's guidelines (Association of periOperative Registered Nurses) have lowered the levels of diligence, vigilance, compliance, and concern regarding the potential for disease transmission associated with improper reprocessing of endoscopes (including laryngoscopes). The guidelines seem to be disproportionately influenced by cost factors and the peculiarities of certain manufacturers' reprocessing equipment, rather than patient safety.
Fast forward a few weeks, and the LA Times confirmed that inadequate reprocessing of laryngoscope blades was to blame for the deaths.
According to the Times--The blades were cleaned with soap, tap water and alcohol wipes, which was not in accordance with the manufacturer's recommendations to sterilize them. The hospital's director of risk management and infection control told inspectors that "the practice was unapproved, and there was no training, no competency and no monitoring of the procedure."
But, let's not be so quick to blame the underpaid techs...
Muscarella does not agree that White Memorial Hospital and its staff members were entirely to blame for the reprocessing missteps that led to this outbreak. He notes that:
The use of soap and water and wiping with 70% alcohol to reprocess rigid laryngoscope blades, while inadequate, is reported to be an all too common practice.
Failure of the health care community to have published formal and multi-society endorsed step-by-step guidelines for reprocessing the rigid laryngoscope's blade and handle, in Muscarella's opinion, may have played a role in this outbreak at White Memorial.
What's more, Muscarella believes that "mixed signals" regarding the minimum reprocessing requirements for rigid laryngoscopes may have also played a role in this outbreak. Some guidelines all but endorse the use of 70% alcohol for reprocessing laryngoscope blades, which might have confused reprocessing staff members at White Memorial.
One guideline recommends the following for reprocessing laryngoscope blades:
"Wash (the blade) with detergent solution and dry. If disinfection is indicated, immerse (the blade) in 70% alcohol for 10 minutes."
For the handle, this guideline recommends no more than cleaning with a detergent solution. Guidelines that not only recommend inadequate measures for the blades of laryngoscopes, but that also recommend a different, and lower, level of disinfection for the handle do little to resolve the confusion surrounding the minimum reprocessing requirements for rigid laryngoscopes.
Noted in my original article--
As any undergraduate microbiology student will tell you, once a surface that started off at a higher level of disinfection is touched by a surface that is at a lower level—such as a laryngoscope blade touching a laryngoscope handle—the higher level surface has been compromised. Indeed, this would be a fundamental violation of aseptic technique.
Where was AORN? The silence is deafening.