Concern for overtreatment using the AUA/ASTRO guideline on adjuvant radiotherapy after radical prostatectomy

Recently, three prospective randomized trials have shown that adjuvant radiotherapy (ART) after radical prostatectomy for the patients with pT3 and/or positive margins improves biochemical progression-free survival and local recurrence free survival. But, the optimal management of these patients aft...

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Veröffentlicht in:BMC urology 2014-04, Vol.14 (1), p.30-30, Article 30
Hauptverfasser: Kang, Jung Hun, Ha, Yun-Sok, Kim, Sung, Yu, Jihyeong, Patel, Neal, Parihar, Jaspreet S, Salmasi, Amirali Hassanzadeh, Kim, Wun-Jae, Kim, Isaac Yi
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container_end_page 30
container_issue 1
container_start_page 30
container_title BMC urology
container_volume 14
creator Kang, Jung Hun
Ha, Yun-Sok
Kim, Sung
Yu, Jihyeong
Patel, Neal
Parihar, Jaspreet S
Salmasi, Amirali Hassanzadeh
Kim, Wun-Jae
Kim, Isaac Yi
description Recently, three prospective randomized trials have shown that adjuvant radiotherapy (ART) after radical prostatectomy for the patients with pT3 and/or positive margins improves biochemical progression-free survival and local recurrence free survival. But, the optimal management of these patients after radical prostatectomy is an issue which has been debated continuously. The object of this study was to determine the necessity of adjuvant radiotherapy (ART) by reviewing the outcomes of observation without ART after radical prostatectomy (RP) in patients with pathologic indications for ART according to the American Urological Association (AUA)/American Society for Radiation Oncology (ASTRO) guideline. From a prospectively maintained database, 163 patients were eligible for inclusion in this study. These men had a pathological stage pT2-3 N0 with undetectable PSA level after RP and met one or more of the three following risk factors: capsular perforation, positive surgical margins, or seminal vesicle invasion. We excluded the patients who had received neoadjuvant hormonal therapy or adjuvant treatment, or had less than 24 months of follow-up. To determine the factors that influenced biochemical recurrence-free (BCR), univariate and multivariate Cox proportional hazards analyses were performed. Among the 163 patients, median follow-up was 50.5 months (24.0-88.2 months). Of those men under observation, 27 patients had BCR and received salvage radiotherapy (SRT). The multivariate Cox analysis showed that BCR was marginally associated with pre-operative serum PSA (P = 0.082), and the pathologic GS (HR, 4.063; P = 0.001) was an independent predictor of BCR. More importantly, in 87 patients with pre-operative PSA < 6.35 ng/ml and GS ≤ 7, only 3 developed BCR. Of the 163 patients who qualified for ART based on the current AUA/ASTRO guideline, only 27 (16.6%) developed BCR and received SRT. Therefore, using ART following RP using the current recommendation may be an overtreatment in an overwhelming majority of the patients.
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To determine the factors that influenced biochemical recurrence-free (BCR), univariate and multivariate Cox proportional hazards analyses were performed. Among the 163 patients, median follow-up was 50.5 months (24.0-88.2 months). Of those men under observation, 27 patients had BCR and received salvage radiotherapy (SRT). The multivariate Cox analysis showed that BCR was marginally associated with pre-operative serum PSA (P = 0.082), and the pathologic GS (HR, 4.063; P = 0.001) was an independent predictor of BCR. More importantly, in 87 patients with pre-operative PSA &lt; 6.35 ng/ml and GS ≤ 7, only 3 developed BCR. Of the 163 patients who qualified for ART based on the current AUA/ASTRO guideline, only 27 (16.6%) developed BCR and received SRT. 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This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.</rights><rights>Copyright © 2014 Kang et al.; licensee BioMed Central Ltd. 2014 Kang et al.; licensee BioMed Central Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b613t-600bb85af647ce2cf3c9e8663ed14747459b6d12bc33ec8b13096a1b54ff98863</citedby><cites>FETCH-LOGICAL-b613t-600bb85af647ce2cf3c9e8663ed14747459b6d12bc33ec8b13096a1b54ff98863</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4005471/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4005471/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,315,728,781,785,865,886,27929,27930,53796,53798</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24708639$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kang, Jung Hun</creatorcontrib><creatorcontrib>Ha, Yun-Sok</creatorcontrib><creatorcontrib>Kim, Sung</creatorcontrib><creatorcontrib>Yu, Jihyeong</creatorcontrib><creatorcontrib>Patel, Neal</creatorcontrib><creatorcontrib>Parihar, Jaspreet S</creatorcontrib><creatorcontrib>Salmasi, Amirali Hassanzadeh</creatorcontrib><creatorcontrib>Kim, Wun-Jae</creatorcontrib><creatorcontrib>Kim, Isaac Yi</creatorcontrib><title>Concern for overtreatment using the AUA/ASTRO guideline on adjuvant radiotherapy after radical prostatectomy</title><title>BMC urology</title><addtitle>BMC Urol</addtitle><description>Recently, three prospective randomized trials have shown that adjuvant radiotherapy (ART) after radical prostatectomy for the patients with pT3 and/or positive margins improves biochemical progression-free survival and local recurrence free survival. 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subjects Adult
Aged
Analysis
Cancer therapies
Confidence intervals
Drug dosages
Evidence-Based Medicine
Guideline Adherence - utilization
Health aspects
Health Services Misuse - prevention & control
Health Services Misuse - statistics & numerical data
Humans
Male
Medical Oncology - standards
Medicine
Men
Middle Aged
Oncology
Practice Guidelines as Topic
Practice Patterns, Physicians' - standards
Practice Patterns, Physicians' - statistics & numerical data
Prostate cancer
Prostatectomy - standards
Prostatic Neoplasms - therapy
Radiation
Radiation therapy
Radiotherapy
Radiotherapy, Adjuvant - standards
Retrospective Studies
Statistical analysis
Studies
United States
University colleges
Urology
title Concern for overtreatment using the AUA/ASTRO guideline on adjuvant radiotherapy after radical prostatectomy
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