ArticleInternational journal of particle therapy2026
Outcomes of Salvage Proton Therapy After Primary Cryosurgery or High-Intensity Focused Ultrasound for Recurrent Localized Prostate Cancer.
Article in International journal of particle therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: To report long-term outcomes for patients treated with salvage proton therapy (PT) following primary cryosurgery (CS) or high-intensity focused ultrasound (HIFU) for recurrent localized prostate cancer. Materials and Methods: We assessed 31 patients who underwent salvage PT at our institution between 2007 and 2017 for biopsy-confirmed, localized prostate cancer recurrence after CS ( Results: Median follow-up was 8.0 years (range, 1.9-13.5). The 5- and 10-year Freedom from biochemical failure rates were 72.4% and 64.7%, respectively. Overall survival at 5- and 10-year was 86.0% and 71.1%, respectively. At 10-years, freedom from regional failure was 73.7% and failure and distant failure was 96.8%. One late grade 3 hematuria occurred (3.2%), and 2 transient late grade 2 rectal hemorrhages occurred (6.4%). Median Expanded Prostate Index Composite and International Prostate Symptom Score scores remained stable from pre-PT through 5 years after treatment. Conclusion: Our results demonstrate salvage PT as a safe and effective option following CS or HIFU with low toxicity and minimal impact on reported quality of life. PT outcomes are comparable with recent prostate cancer ablation salvage reports. Future studies should include multi-center collaborations to investigate elective pelvic nodal radiation to optimize treatment strategies for recurrent prostate cancer.
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