AB141. Removal of numerous vesical magnetic balls with a self-made magnetic sheath

INTRODUCTION: Sexual curiosity and the quest for sexual excitement are the most frequent reasons for patients to introduce foreign bodies into the urethral or the bladder. Imagination and surgical skill are essential for an urologist to retrieve such vesical foreign bodies. AIMS: To describe a novel method for retrieving vesical magnetic balls, which was used for autoeroticism by an adolescent, by utilizing a self-made “magnetic sheath”. PATIENTS AND METHODS: A 21-year-old inserted more than one hundred small magnetic balls into his urethra for sexual excitement, which lately causing symptoms of gross hematuria, frequent urination and acute lower abdominal pain when walking or urination. We invented a “magnetic sheath” by fixing a magnetic ball on the tip of a F9.5 ureteral access sheath to remove the foreign bodies in a minimally invasive way. RESULTS: Under direct visualization of a F8/9.8 ureteroscopy, the “magnetic sheath” could easily firmly attach to the magnetic ball inside the bladder, which could pull out 5 to 15 balls each time. It took about 5 minutes to remove all of the 125 magnetic balls by utilizing our “magnetic sheath”. CONCLUSIONS: The self-made “magnetic sheath” can make the task of removal of magnetic foreign body easy to urologist, which requires less time and surgical skills. The new equipment provides a new method for urologist to deal with some challenging task of removing metal vesical foreign bodies which was self-inserted for masturbation.