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Chemoradiotherapy alone or chemoradiotherapy followed by surgery in rectal cancer

Which way to go?

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Summary

In locally advanced rectal cancer, neoadjuvant chemoradiotherapy provides a significant benefit to local cancer control in addition to total mesorectal excision. However, in 10–40% of all patients, a complete clinical remission can be detected after completion of chemoradiotherapy. Recent studies have shown that those patients omitting radical surgery after successful neoadjuvant pretreatment can be safely managed within a close follow-up network without compromising short-term overall and disease-free survival. However, available data suggest that 20–30% of all patients assigned to a watch and wait regimen will eventually have to be transferred to surgical management due to local recurrence. Careful patient selection is key for a successful watch and wait approach and the choice of non-operative management should not be made after completion of staging but rather after neoadjuvant chemoradiotherapy. Selected patients need to be thoroughly informed that there is still no standardized follow-up protocol and no predefined follow-up period.

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  1. Department of Surgery, Cantonal Hospital of Winterthur, Brauerstrasse 15, 8401, Winterthur, Switzerland

    Fabian Lunger MD, PhD & Georgios Peros MD

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F. Lunger and G. Peros declare that they have no competing interests.

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Lunger, F., Peros, G. Chemoradiotherapy alone or chemoradiotherapy followed by surgery in rectal cancer. memo 13, 324–328 (2020). https://doi.org/10.1007/s12254-020-00586-0

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