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- W1949830495 abstract "The management of rectal cancer has evolved significantly in the last few decades. Significant improvements in local disease control were achieved in the 1990s, with the introduction of total mesorectal excision and neoadjuvant radiotherapy. Level 1 evidence has shown that, with neoadjuvant chemoradiation therapy (CRT) the rates of local recurrence can be lower than 6% and, as a result, neoadjuvant CRT currently represents the accepted standard of care. This approach has led to reliable tumor down-staging, with 15–27% patients with a pathological complete response (pCR)—defined as no residual cancer found on histological examination of the specimen. Patients who achieve pCR after CRT have better long-term outcomes, less risk of developing local or distal recurrence and improved survival. For all these reasons, sphincter-preserving procedures or organ-preserving options have been suggested, such as local excision of residual tumor or the omission of surgery altogether. Although local recurrence rate has been stable at 5–6% with this multidisciplinary management method, distal recurrence rates for locally-advanced rectal cancers remain in excess of 25% and represent the main cause of death in these patients. For this reason, more recent trials have been looking at the administration of full-dose systemic chemotherapy in the neoadjuvant setting (in order to offer early treatment of disseminated micrometastases, thus improving control of systemic disease) and selective use of radiotherapy only in non-responders or for low rectal tumors smaller than 5 cm." @default.
- W1949830495 created "2016-06-24" @default.
- W1949830495 creator A5016541773 @default.
- W1949830495 creator A5052247473 @default.
- W1949830495 date "2015-08-19" @default.
- W1949830495 modified "2023-10-14" @default.
- W1949830495 title "Neoadjuvant chemoradiation therapy and pathological complete response in rectal cancer" @default.
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- W1949830495 doi "https://doi.org/10.1093/gastro/gov039" @default.
- W1949830495 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4650974" @default.
- W1949830495 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26290512" @default.
- W1949830495 hasPublicationYear "2015" @default.