Infection prevention and control (IPC) professionals grapple with the ongoing issue of instrument contamination despite adherence to rigorous reprocessing practices and manufacturer guidelines. Two recent studies, spotlighted in The Journal of Hospital Infection and American Journal of Infection Control, present alarming instances of contamination in new endoscopes and cleaned lumened surgical instruments and shed light on this potential weakness in our healthcare system. Such findings emphasize the need for exhaustive scrutiny in reprocessing these sensitive devices.
An outbreak at a hospital in Mecklenburg-Western Pomerania, Germany, containing the OXA-181 carbapenemase-producing Klebsiella pneumoniae virus, was the focus of the first study. Out of the 19 affected patients in the initial phase, the majority had undergone endoscopic procedures, resulting in the tracking of the bacterial source to a contaminated colonoscope. In efforts to rectify the situation, the hospital replaced all its older endoscopes (over ten years old) with new equipment. However, subsequent testing revealed residual bacterial contamination on 4 out of 67 freshly reprocessed endoscopes, emphasizing that even new equipment is not exempt from risk.
The second study inspected 40 different types of cleaned lumened surgical instruments used in various procedures, from orthopedic and neurologic to ear, nose, and throat treatments. The shocking results demonstrated residual debris, rust, or soil on every instrument post-cleaning. Some instruments also harbored design flaws that obstructed thorough decontamination.
Taken together, these studies confront infection prevention professionals with a harsh reality: adhering to manufacturers’ guidelines is not bulletproof against persistent contamination. Constant inquiry, testing, and advocating for improved design and stringent oversight are critical steps towards fortifying our defenses. As these cases illustrate, contamination can be tenacious, thereby underscoring the need for relentless vigilance in the face of ongoing infection risks.