Abstract
In order to prevent Helicobacter pylori infection from contaminating endoscopic instruments, several sterilization methods were recently reported. However, more rapid and convenient method is required clinically for disinf ection after individual endoscopic examination. Electrolized strong acid aqueous solution (ESAAS) has strong and rapid bacterocidal effects and is safe for human tissue. In this study, we investigated the effect of ESAAS for endoscopic disinf ection of H. pylori using PCR method. H. pylori was detected in 18 of 21 cases (85.7%) by rapid urease method or culture method. Urease A gene of H, pylori was detected in the washing solutions of 15 cases (83.3%) before cleaning and in those of 8 cases (53.3%) after washing with tap water. After washing with ESAAS, in addition, H. pylori was not detected at all. In conclusion, washing and suction with ESAAS is a rapid, convenient and safer steriliing method for preventing H. pylori transmission via endoscopic instruments.
