Intraprostatic Endoprosthesis

Abstract

Italian

The indications and advantages of an intraprostatic endoprosthesis (IPEP) in the case of obstructive symptoms and urinary retention in patients with BPH are well known. The aim of this study is to report our preliminary experience in the use of a new IPEP which has been developed at our Institute. This prosthesis can be easily positioned, shows little invasiveness and does not require ultrasonic, radiological or endoscopic guidance. The IPEP consists of three detachable parts, which are assembled coaxially to form an ordinary catheter. This procedure is made easier by a knob on the catheter which can be localized by inserting a finger into the rectum. The unit is compact, flexible and smooth. While positioning the IPEP, it is also possible to insert it and draw it back without causing any change to its shape. It is positioned by following the same procedure used for catheters. From November 1989 to April 1991, IPEP prototypes were inserted, with patients’ permission, in 16 patients with BPH and a residual urine volume of 150 cc (mean age 67 years; range 52 to 83 years). In all cases the procedure lasted only a few minutes. In 11 patients the prosthesis was correctly positioned, their stop test and uroflowmetry being valid. In 2 (12%) the procedure was not immediately successful and an additional catheter had to be used. In 3 (19%), it was repositioned.

Keywords

benign prostatic hypertrophy intraprostatic endoprosthesis

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