[High-intensity focused ultrasound for localized prostate cancer].
High-intensity focused ultrasound (HIFU) is a noninvasive treatment that induces complete coagulative necrosis of a tumor at depth through the intact skin. We evaluated a biochemical disease-free rate, safety and morbidity for localized prostate cancer treated with HIFU. A total of 132 consecutive patients with stage T1c-2N0M0 localized prostate cancer underwent HIFU using Sonablate-500 (Focus Surgery, Indianapolis, USA). The 5-year biochemical disease-free rate in all patients was 67%. The 5-year biochemical disease-free rates for patients with a pretreatment PSA less than 10 ng/ml, 10.01 to 20.0 ng/ml, 20.01-30.0 ng/ml and more than 30.01 ng/ml were 88%, 67%, 34% and 13% (log rank test, p < 0.0001), respectively. HIFU therapy appears to be a safe, efficacious and minimally invasive therapy for patients with localized prostate cancer.
Uchida
Toyoaki
T
Department of Urology, Tokai University Hachioji Hospital.
D000368:Aged; D000369:Aged, 80 and over; D018572:Disease-Free Survival; D006801:Humans; D008297:Male; D008875:Middle Aged; D011471:Prostatic Neoplasms / Q000628:therapy*; D012189:Retrospective Studies; D016896:Treatment Outcome; D036761:Ultrasound, High-Intensity Focused, Transrectal / Q000295:instrumentation / Q000379:methods