In:
Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 32, No. 4_suppl ( 2014-02-01), p. 100-100
Abstract:
100 Background: The clinical value of adjuvant (aRT) or salvage radiation (sRT) for patient treated with radical prostatectomy (RP) is currently controversially debated. In this study, we assessed the impact of aRT and sRT on long-term urinary continence. Methods: Overall, 15,901 patients who underwent RP in our center between 1992 and 2012 were analyzed. aRT within the first 6 months was performed in 734 (2.9%) patients, and sRT after 6 months in 1405 (8.8%) patients (median time 21.6 months), respectively. Continence rates were assessed annually after RP using a self-administrated questionnaire. Median follow-up was 48.4 months. Continence was defined as the use of no pads or one safety pad. Incontinence was categorized by the number of used pads. The impact of additional radiation therapy on continence results was analyzed by logistic regression analyses, the chi 2 -likelyhood test and propensity score matching. Results: In multivariate logistic regression analysis, adjusted for age, prostate volume, extend of nerve-sparing, year of surgery, the event of additive RT (OR=1.2, p=0.17) was not statistically relevant correlated with the long-term continence status whereas all other variables significantly correlated with urinary incontinence (p 〈 0.01, each). The lacking correlation of RT and continence remained in a second logistic regression model, adjusted for tumor features (pT, pN, Gleason, PSA, margin-status). The timing of RT (aRT vs. sRT) was not statistically relevant correlated with the long-term continence status (OR=1.7, p=0.09; OR=1.2, p=0.5) In addition, a comparison of all patients received aRT with a propensity score based matched cohort of RP only patients (corrected for age, prostate volume, extend of nerve-sparing and year of surgery) revealed no statistical significant impact of RT on continence (p 〉 0.05). In 248 patients, the continence status was available pre and post RT, again not showing a negative impact of RT (p 〉 0.05). Conclusions: Additive radiation therapy after radical prostatectomy does not negatively affect urinary continence.
Type of Medium:
Online Resource
ISSN:
0732-183X
,
1527-7755
DOI:
10.1200/jco.2014.32.4_suppl.100
Language:
English
Publisher:
American Society of Clinical Oncology (ASCO)
Publication Date:
2014
detail.hit.zdb_id:
2005181-5
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