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Second conservative treatment for second ipsilateral breast tumor event: A systematic review of the different re-irradiation techniques.

ABSTRACT: AIM:To address the different partial breast re-irradiation techniques available in the context of second conservative treatment (SCT), as an alternative to salvage mastectomy, for 2nd ipsilateral breast tumor event (IBTE) and summarize their respective oncological and toxicity outcomes. MATERIAL AND METHODS:A literature search was made based on MeSH/PubMed, including papers from 1995 to 2019. Each article was described according to the main irradiation technique, fractionation, oncological results and grade 3 toxicities related to the salvage conservative treatment. RESULTS:Twenty-two articles were identified, reporting the outcomes of over 1 000 patients. MIB Brachytherapy was the most used re-irradiation technique in case of SCT, with a median 3rdIBTE-FS rate of 88% and summed up grade 3 toxicities of 6%. As for IORT, the average rate of 3rdIBTE-FS was about Finally, external beam partial re-irradiation was recently tested in this indication with encouraging results in terms of tolerance. CONCLUSION:When presenting a 2ndIBTE, a SCT can safely be proposed to carefully selected and well-informed patients, as an alternative to salvage mastectomy. MIB appears to be the first intention and most robust choice. IORT, external beam radiotherapy and balloon brachytherapy are interesting alternatives but have only been tested in small series. Further investigations are required and their use should be limited to clinical trial only.

SUBMITTER: Montagne L

PROVIDER: S-EPMC7375668 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Second conservative treatment for second ipsilateral breast tumor event: A systematic review of the different re-irradiation techniques.

Montagne Lucile L Hannoun Arthur A Hannoun-Levi Jean-Michel JM

Breast (Edinburgh, Scotland) 20200109

<h4>Aim</h4>To address the different partial breast re-irradiation techniques available in the context of second conservative treatment (SCT), as an alternative to salvage mastectomy, for 2nd ipsilateral breast tumor event (IBTE) and summarize their respective oncological and toxicity outcomes.<h4>Material and methods</h4>A literature search was made based on MeSH/PubMed, including papers from 1995 to 2019. Each article was described according to the main irradiation technique, fractionation, on ...[more]

PMID: 31945697

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Project description:Purpose: To perform a prospective study to evaluate the efficacy and safety of isolated recurrent tumor re-irradiation with carbon-ion radiotherapy (RT). Methods and Materials: The inclusion criteria were clinically proven recurrent tumors, measurable by computed tomography or magnetic resonance imaging, patients ≥ 16 years old, performance status scores between 0 and 2, isolated tumor at a previously irradiated site, and a life expectancy > 6 months. The exclusion criteria were tumor invasion into the gastrointestinal tract or a major blood vessel, uncontrolled infection, early recurrence (<3 months), and severe concomitant diseases. The primary end-point was the local control rate, the secondary end-points including the overall survival rate, and adverse events. Results: Between December 2013 and March 2016, 22 patients were enrolled in this prospective study. All patients were re-irradiated with carbon-ion RT with radical intent. Five patients had rectal cancer, 4 had sarcoma, 4 had lung cancer, 3 had hepatic cell carcinoma, and 6 had other tumors. The median follow-up time was 26 months. Eight patients developed local recurrence, and the 1- and 2-year local control rates were 71 and 60%, respectively. Eight patients died of their cancers and 2 died of other diseases. The 1- and 2-year overall survival rates were 76 and 67%, respectively. There were no grade 2 or higher acute adverse events and 4 patients (18%) developed grade 3 late adverse events. The group with the longer interval (>16 months) between the first RT and re-irradiation had significantly better outcomes than the shorter interval group (≤ 16 months). Conclusions: Re-irradiation, using carbon-ion RT with radical intent, had favorable local control and overall survival rates without severe toxicities for selected patients. Re-irradiation has the potential to improve clinical outcomes for isolated, local, recurrent tumors; further investigations are required to confirm the therapeutic efficacy.

Dataset Information

Second conservative treatment for second ipsilateral breast tumor event: A systematic review of the different re-irradiation techniques.

Publications

Second conservative treatment for second ipsilateral breast tumor event: A systematic review of the different re-irradiation techniques.

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