173 Does non invasive nodal staging and elective irradiation of the pelvic lymphatics compromise the feasibility of local dose escalation using high dose rate brachytherapy for increased curability in men with localized prostate cancer? Long-term results: Survival and toxicity

2000 ◽  
Vol 55 ◽  
pp. 89-90
Author(s):  
R. Galalael ◽  
T. Loch ◽  
J. Schultze ◽  
P. Rzehakz ◽  
R. Wilhelm ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Dose Rate ◽  
Dose Escalation ◽  
High Dose Rate ◽  
Localized Prostate Cancer ◽  
Long Term Results ◽  
High Dose ◽  
Nodal Staging ◽  
Non Invasive

scholarly journals Two-Weekly High-Dose-Rate Brachytherapy Boost After External Beam Radiotherapy for Localized Prostate Cancer: Long-Term Outcome and Toxicity Analysis

2021 ◽  
Vol 11 ◽  
Author(s):  
Jörg Tamihardja ◽  
Paul Lutyj ◽  
Johannes Kraft ◽  
Dominik Lisowski ◽  
Stefan Weick ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Dose Rate ◽  
External Beam Radiotherapy ◽  
High Dose Rate ◽  
Localized Prostate Cancer ◽  
High Dose ◽  
High Dose Rate Brachytherapy ◽  
Brachytherapy Boost ◽  
Gi Toxicity

PurposeEvaluation of clinical outcome of two-weekly high-dose-rate brachytherapy boost after external beam radiotherapy (EBRT) for localized prostate cancer.Methods338 patients with localized prostate cancer receiving definitive EBRT followed by a two-weekly high-dose-rate brachytherapy boost (HDR-BT boost) in the period of 2002 to 2019 were analyzed. EBRT, delivered in 46 Gy (DMean) in conventional fractionation, was followed by two fractions HDR-BT boost with 9 Gy (D90%) two and four weeks after EBRT. Androgen deprivation therapy (ADT) was added in 176 (52.1%) patients. Genitourinary (GU)/gastrointestinal (GI) toxicity was evaluated utilizing the Common Toxicity Criteria for Adverse Events (version 5.0) and biochemical failure was defined according to the Phoenix definition.ResultsMedian follow-up was 101.8 months. 15 (4.4%)/115 (34.0%)/208 (61.5%) patients had low-/intermediate-/high-risk cancer according to the D`Amico risk classification. Estimated 5-year and 10-year biochemical relapse-free survival (bRFS) was 84.7% and 75.9% for all patients. The estimated 5-year bRFS was 93.3%, 93.4% and 79.5% for low-, intermediate- and high-risk disease, respectively. The estimated 10-year freedom from distant metastasis (FFM) and overall survival (OS) rates were 86.5% and 70.0%. Cumulative 5-year late GU toxicity and late GI toxicity grade ≥ 2 was observed in 19.3% and 5.0% of the patients, respectively. Cumulative 5-year late grade 3 GU/GI toxicity occurred in 3.6%/0.3%.ConclusionsTwo-weekly HDR-BT boost after EBRT for localized prostate cancer showed an excellent toxicity profile with low GU/GI toxicity rates and effective long-term biochemical control.

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