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International Journal of Clinical Oncology

Erschienen in:

01.08.2012 | Original Article

Percent tumor volume predicts biochemical recurrence after radical prostatectomy: multi-institutional data analysis

verfasst von: Cheryn Song, Seongil Seo, Hanjong Ahn, Seok-Soo Byun, Jin Seon Cho, Young Deuk Choi, Eunsik Lee, Hyun Moo Lee, Sang Eun Lee, Han Yong Choi

Erschienen in: International Journal of Clinical Oncology | Ausgabe 4/2012

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Abstract

Background

To investigate the prognostic significance of percent tumor volume (PTV) in relation to the surgical margin status in men with prostate cancer after radical prostatectomy (RP).

Methods

Clinical and pathological data from 1,567 patients treated with RP only between 1995 and 2007 at participating institutions were reviewed. PTV was determined by the sum of all visually estimated tumor foci on every section. Biochemical recurrence (BCR) was defined as 2 consecutive increases in prostate-specific antigen (PSA) > 0.2 ng/ml and various clinicopathological variables were tested for prognostication of recurrence-free survival.

Results

Serum PSA at surgery was 12.5 ± 16.8 ng/ml and pathological stage was T2 in 899 (57.4%) patients. Surgical Gleason score was 7 in 842 patients (53.7%), higher than 7 in 250 (16%) patients, and in 32% of the patients, surgical margin was positive. Mean PTV was 15.7% and demonstrated a significant positive correlation with serum PSA, all pathological variables and BCR. On multivariate analysis, preoperative PSA (p = 0.012), surgical Gleason score (p < 0.0001, HR 2.183, 95% CI 1.778–2.681), and PTV (≤5, 5.1–15, >15%; p < 0.0001, HR 1.393, 95% CI 1.183–1.641) were independently prognostic of recurrence-free survival. Pathological stage demonstrated a significant relationship with BCR but was not independently prognostic in the multivariate model.

Conclusion

In men with prostate cancer, preoperative PSA, surgical Gleason score, and PTV are independent predictors of recurrence-free survival after RP.

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Titel: Percent tumor volume predicts biochemical recurrence after radical prostatectomy: multi-institutional data analysis
verfasst von: Cheryn Song
Seongil Seo
Hanjong Ahn
Seok-Soo Byun
Jin Seon Cho
Young Deuk Choi
Eunsik Lee
Hyun Moo Lee
Sang Eun Lee
Han Yong Choi
Publikationsdatum: 01.08.2012
Verlag: Springer Japan
Erschienen in: International Journal of Clinical Oncology / Ausgabe 4/2012
Print ISSN: 1341-9625
Elektronische ISSN: 1437-7772
DOI: https://doi.org/10.1007/s10147-011-0295-2

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Percent tumor volume predicts biochemical recurrence after radical prostatectomy: multi-institutional data analysis