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Pre-radiotherapy PSA level as a predictor for biochemical control in prostate cancer patients receiving radiotherapy after radical prostatectomy



Pre-radiotherapy PSA level as a predictor for biochemical control in prostate cancer patients receiving radiotherapy after radical prostatectomy



Biomedical Journal 36(2): 71-76



To report the outcome of patients receiving radiotherapy (RT) after radical prostatectomy (RP). Between May 2001 and December 2008, 53 consecutive cases of prostate adenocarcinoma treated with RP and RT were reviewed. A total of 49 patients were eligible for this study. After a median follow-up of 53 months, the 4-year overall survival (OS) and biochemical progression-free survival (bPFS) for all patients were 91.0% and 68.9%, respectively. According to univariate and multivariate analysis, pre-RT prostate-specific antigen (PSA) was the most significant factor for bPFS. Patients with pre-RT PSA levels of < 0.2 ng/ml and ≧ 0.2 ng/ml had a 4-year bPFS of 83.1% and 52.6%, respectively (p = 0.013). The incidence of chronic rectal toxicity was low, with no grade 3 toxicity reported and grade 2 toxicity found in only 6 patients (12.2%). However, long-term urinary toxicity of grade 2 or higher was found in 24 patients (49.0%). For patients with increasing PSA levels following RP, local RT should be administered prior to biochemical failure (PSA ≧ 0.2), to ensure good bPFS.

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Accession: 055092864

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PMID: 23644235


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