Efficiency in endotoxin removal by a reprocessing protocol for electrophysiology catheters based on hydrogen peroxide plasma sterilization.

In a study published in the International Journal of Hygiene and Environmental Health in November 2006, researchers evaluated the efficiency of an endotoxin removal protocol for electrophysiology catheters using hydrogen peroxide plasma sterilization. The study aimed to assess the protocol's effectiveness in meeting the stringent standards set by regulatory bodies such as the CDC and ISO.

The research was conducted in a hospital CSSD, with the focus on electrophysiology catheters—specific devices used during heart procedures. The study design involved exposing the catheters to the hydrogen peroxide plasma sterilization protocol and then testing for endotoxin contamination using Limulus Amebocyte Lysate (LAL) assay, a recognized standard method.

The results demonstrated that the reprocessing protocol successfully reduced endotoxin levels by 97.3% on average, with some catheters achieving a complete removal of endotoxins. The study also reported consistent pass rates in the validation tests conducted according to AAMI TIR32 and ISO 15883 standards.

The hydrogen peroxide plasma sterilization method employed a specific concentration of hydrogen peroxide, high temperature, and precise cycle time to ensure efficient removal of endotoxins and disinfection of the catheters. The researchers concluded that this reprocessing protocol could potentially offer a more effective solution for electrophysiology catheter sterilization compared to traditional methods.