[The Safety of Bladder Irrigation with Solution G Prepared with Tap Water]

This study investigated the safety of bladder irrigation in patients with indwelling bladder catheter using Solution G prepared with tap water. Solution G was prepared using tap water and stored in a refrigerator for 1 week. The bacterial count range in the solution was estimated to be between 0 and 10 colony forming units/ml. The values were within the reference range in the Water Supply Act of Japan. Subsequently, bladder irrigation was performed with the prepared Solution G in six patients. The number of bacteria, leukocytes, and bacterial flora were evaluated before and 1 and 3 months after bladder irrigation. The results indicated no significant change in the values during this period. Therefore, bladder irrigation with Solution G prepared with tap water is safe.