PSA nadir is a significant predictor of treatment failure after high-intensity focussed ultrasound (HIFU) treatment of localised prostate cancer.

Abstract:

OBJECTIVES:To assess if prostate-specific antigen (PSA) nadir is an independent predictor of treatment failure and disease-free survival after high-intensity focussed ultrasound (HIFU) therapy for localised prostate cancer as defined by the new ASTRO criteria. METHODS:One hundred three patients after HIFU treatment (Ablatherm, EDAP, Lyon, France) for localised prostate cancer without previous hormonal therapy were evaluated retrospectively. Patients attended regular follow-up visits every 3 mo. Treatment failure was defined by the revised ASTRO criteria (PSA >or=2 ng/ml above nadir PSA, positive biopsy, if salvage treatment was administered). Patients were divided into three PSA nadir subgroups (group 1, 1 ng/ml). The disease-free survival rate (DFSR) was calculated by using life table methods. The log-rank test was used to compare the curves based on Kaplan-Meier models. RESULTS:The median follow-up was 4.9 (3-8.6) yr. Mean time to PSA nadir was 6.4+/-5.1 mo. A PSA nadir of 1ng/ml was reached by 64%, 22.3%, and 13.6% of patients, respectively. Treatment failure rates during follow-up were 4.5%, 30.4%, and 100%, respectively, for the three groups (p<0.001). The actuarial DFSRs at 5 yr were 95%, 55%, and 0%, respectively, for the 3 groups (p<0.001). CONCLUSIONS:The PSA nadir after HIFU correlates highly significantly with treatment failure and DFSR, and can be applied in daily clinical practice. Promising oncological outcome is obtained if a PSA nadir of

journal_name

Eur Urol

journal_title

European urology

authors

Ganzer R,Rogenhofer S,Walter B,Lunz JC,Schostak M,Wieland WF,Blana A

doi

10.1016/j.eururo.2007.07.010

subject

Has Abstract

pub_date

2008-03-01 00:00:00

pages

547-53

issue

3

eissn

0302-2838

issn

1873-7560

pii

S0302-2838(07)00916-5

journal_volume

53

pub_type

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