An international expert survey on the indications and practice of radical thoracic reirradiation for non-small cell lung cancer
Chua, K. L. M.
De Ruysscher, D.
Hanna, G. G.
Louie, A. V.
Palma, D. A.
Videtic, G. M. M.
Chalmers, A. J.
AffiliationInstitute of Cancer Sciences, The University of Glasgow, Glasgow
MetadataShow full item record
AbstractPurpose: Thoracic reirradiation for non-small cell lung cancer with curative intent is potentially associated with severe toxicity. There are limited prospective data on the best method to deliver this treatment. We sought to develop expert consensus guidance on the safe practice of treating non-small cell lung cancer with radiation therapy in the setting of prior thoracic irradiation. Methods and materials: Twenty-one thoracic radiation oncologists were invited to participate in an international Delphi consensus process. Guideline statements were developed and refined during 4 rounds on the definition of reirradiation, selection of appropriate patients, pretreatment assessments, planning of radiation therapy, and cumulative dose constraints. Consensus was achieved once ≥75% of respondents agreed with a statement. Statements that did not reach consensus in the initial survey rounds were revised based on respondents' comments and re-presented in subsequent rounds. Results: Fifteen radiation oncologists participated in the 4 surveys between September 2019 and March 2020. The first 3 rounds had a 100% response rate, and the final round was completed by 93% of participants. Thirty-three out of 77 statements across all rounds achieved consensus. Key recommendations are as follows: (1) appropriate patients should have a good performance status and can have locally relapsed disease or second primary cancers, and there are no absolute lung function values that preclude reirradiation; (2) a full diagnostic workup should be performed in patients with suspected local recurrence and; (3) any reirradiation should be delivered using optimal image guidance and highly conformal techniques. In addition, consensus cumulative dose for the organs at risk in the thorax are described. Conclusions: These consensus statements provide practical guidance on appropriate patient selection for reirradiation, appropriate radiation therapy techniques, and cumulative dose constraints.
CitationRulach R, Ball D, Chua KLM, Dahele M, De Ruysscher D, Franks K, et al. An International Expert Survey on the Indications and Practice of Radical Thoracic Reirradiation for Non-Small Cell Lung Cancer. Advances in Radiation Oncology. 2021 Mar;6(2):100653.
JournalAdvances in Radiation Oncology
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