試作カテーテルを用いた前立腺圧出液採取法(前立腺カテーテル法)に関する基礎的検討

Abstract

前立腺炎の原因菌決定には尿道常在菌の汚染を受けることなくEPS (expressed prostatic secretiones)を採取することが肝要であり, そのためのカテーテルを試作した.試作カテーテルを用いたEPS採取法は, 一般細菌については6/12の症例で, Ureaplasma urealyticumについては2/5の症例で尿道常在菌の汚染除去が可能であった

The catheter for expressed prostatic secretions (EPS) collection was newly developed for the purpose of protecting EPS from the contamination of the urethral bacteria. This catheter is blind-ended, and has several lateral windows and a balloon between the end and the windows. The procedure of EPS collection using this catheter is as follows; first the catheter is inserted into the urethra, then a balloon is blown up. The catheter is extracted during massage of the prostate and finally EPS is aspirated through the internal lumen of the catheter. In 23 male patients who had neither urinary tract infection nor genital infection, this catheter method was carried out. Before inserting the catheter, the urethral swab was obtained, then culture of the swab and the EPS was done. The catheter method protected against contamination with bacteria in 56%, with Ureaplasma urealyticum in 40%, and all contaminations in 44% of all cases.