Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 Era

Purpose: To analyze the difference in the prediction accuracy with an active surveillance (AS) protocol between two eras (pre-International Society of Urological Pathology [pre-ISUP]-2014 vs. post-ISUP2014). Materials and Methods:Materials and Methods: We retrospectively analyzed 118 candidates for...

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Main Authors: Mun Su Chung, Nam Hoon Cho, Jinu Kim, Youngheun Jo, Byung Il Yoon, Seung Hwan Lee
Format: Article
Language:English
Published: Korean Society for Sexual Medicine and Andrology 2021-07-01
Series:The World Journal of Men's Health
Subjects:
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author Mun Su Chung
Nam Hoon Cho
Jinu Kim
Youngheun Jo
Byung Il Yoon
Seung Hwan Lee
author_facet Mun Su Chung
Nam Hoon Cho
Jinu Kim
Youngheun Jo
Byung Il Yoon
Seung Hwan Lee
author_sort Mun Su Chung
collection DOAJ
description Purpose: To analyze the difference in the prediction accuracy with an active surveillance (AS) protocol between two eras (pre-International Society of Urological Pathology [pre-ISUP]-2014 vs. post-ISUP2014). Materials and Methods:Materials and Methods: We retrospectively analyzed 118 candidates for AS who underwent radical prostatectomy between 2009 and 2017. We divided our patients into two groups (group 1 [n=57], operation date 2009–2015; group 2 [n=61], op-eration date 2016–2017). Pathologic slides in group 1 were reviewed to distinguish men with cribriform pattern (CP) because the determination of Gleason scores in old era had been based on pre-ISUP2014 classification. Postoperative outcomes in the two eras were analyzed twice: first, all men in group 1 vs. group 2; second, the remaining men after excluding those with CPs in group 1 vs. group 2. Results:Results: The proportion of men with insignificant prostate cancer (iPCa) was significantly lower in group 1 than in group 2 (36.8% vs. 57.4%, p=0.040). After excluding 11 men with CPs from group 1, those remaining (46 men) were compared again with group 2. In this analysis, the proportion of men with iPCa was similar between the two groups (old vs. contempo-rary era: 41.3% vs. 57.4%, p=0.146). Nine of 11 men with CP had violated the criteria for iPCa in the earlier comparison. Conclusions:Conclusions: The accuracy of the AS protocol has been affected by the coexistence of CPs and pure Gleason 6 tumors in the pre-ISUP2014 era. We suggest to use only contemporary (post-ISUP2014) data to analyze the accuracy with AS protocols in future studies.
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spelling doaj.art-70c56f5b07794a0da675c779e3c581932022-12-21T22:03:47ZengKorean Society for Sexual Medicine and AndrologyThe World Journal of Men's Health2287-42082287-46902021-07-0139355055810.5534/wjmh.200037Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 EraMun Su Chung0https://orcid.org/0000-0002-9885-3559Nam Hoon Cho1https://orcid.org/0000-0002-0045-6441Jinu Kim2https://orcid.org/0000-0001-7468-364XYoungheun Jo3https://orcid.org/0000-0002-5604-9781Byung Il Yoon4https://orcid.org/0000-0003-0107-2818Seung Hwan Lee5https://orcid.org/0000-0001-7358-8544Catholic Kwandong University International St. Mary’s HospitalYonsei University College of MedicineYonsei University College of MedicineYonsei University College of MedicineCatholic Kwandong University International St. Mary’s HospitalYonsei University College of MedicinePurpose: To analyze the difference in the prediction accuracy with an active surveillance (AS) protocol between two eras (pre-International Society of Urological Pathology [pre-ISUP]-2014 vs. post-ISUP2014). Materials and Methods:Materials and Methods: We retrospectively analyzed 118 candidates for AS who underwent radical prostatectomy between 2009 and 2017. We divided our patients into two groups (group 1 [n=57], operation date 2009–2015; group 2 [n=61], op-eration date 2016–2017). Pathologic slides in group 1 were reviewed to distinguish men with cribriform pattern (CP) because the determination of Gleason scores in old era had been based on pre-ISUP2014 classification. Postoperative outcomes in the two eras were analyzed twice: first, all men in group 1 vs. group 2; second, the remaining men after excluding those with CPs in group 1 vs. group 2. Results:Results: The proportion of men with insignificant prostate cancer (iPCa) was significantly lower in group 1 than in group 2 (36.8% vs. 57.4%, p=0.040). After excluding 11 men with CPs from group 1, those remaining (46 men) were compared again with group 2. In this analysis, the proportion of men with iPCa was similar between the two groups (old vs. contempo-rary era: 41.3% vs. 57.4%, p=0.146). Nine of 11 men with CP had violated the criteria for iPCa in the earlier comparison. Conclusions:Conclusions: The accuracy of the AS protocol has been affected by the coexistence of CPs and pure Gleason 6 tumors in the pre-ISUP2014 era. We suggest to use only contemporary (post-ISUP2014) data to analyze the accuracy with AS protocols in future studies.neoplasm gradingprostatectomyprostatic neoplasmswatchful waiting
spellingShingle Mun Su Chung
Nam Hoon Cho
Jinu Kim
Youngheun Jo
Byung Il Yoon
Seung Hwan Lee
Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 Era
The World Journal of Men's Health
neoplasm grading
prostatectomy
prostatic neoplasms
watchful waiting
title Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 Era
title_full Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 Era
title_fullStr Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 Era
title_full_unstemmed Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 Era
title_short Predicting Insignificant Prostate Cancer: Analysis of the Pathological Outcomes of Candidates for Active Surveillance according to the Pre-International Society of Urological Pathology (Pre-ISUP) 2014 Era Versus the Post-ISUP2014 Era
title_sort predicting insignificant prostate cancer analysis of the pathological outcomes of candidates for active surveillance according to the pre international society of urological pathology pre isup 2014 era versus the post isup2014 era
topic neoplasm grading
prostatectomy
prostatic neoplasms
watchful waiting
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