[Reliability of endorectal echography of the prostate in the screening and staging of prostatic cancer]. / Fiabilité de l'échographie endorectale de la prostate dans le dépistage et le staging du cancer prostatique.

1433 transrectal ultrasonographies were performed for prostatic disease. In 453 cases, histopathologic correlation was obtained and compared to digital rectal examination and transrectal ultrasonography done after the clinical examination. The sensitivity of digital rectal examination was 91% and the specificity was 85%. The sensitivity and the specificity of ultrasonography were respectively 95 and 81%. 4 prostatic cancers, not suspected by digital rectal examination, were diagnosed by ultrasound (0,9%). The total number of subclinical cancer was 9 (2%). Interest of ultrasound compared to digital rectal examination concerns less than 1% of the total number of controlled patients. The staging of local extension of prostatic cancer is better by ultrasound than by the digital rectal examination. On 9 cases of clinical unsuspected extracapsular invasion, 6 were diagnosed by ultrasound.

Extracorporeal shock wave lithotripsy for urinary stone disease: clinical experience with the electromagnetic lithotriptor 'Lithostar'.

400 urinary stone patients were treated with the electromagnetic lithotriptor Siemens 'Lithostar': 66.3% had renal stones and 33.7% had ureteral stones. Ninety percent of the treatments were performed under intravenous sedation only: 14.5% of the patients had more than one session. After 3 months more than 80% of the patients with a single stone smaller than 1.5 cm and 46% of the patients with stones larger than 2.5 cm were 'stone-free'.