Neoadjuvant concomitant chemoradiotherapy has become a standard treatment of locally advanced rectal adenocarcinomas (LARA). It leads to shrinkage of the tumor mass and subsequently to an increase in complete resections (R0 resections), increasing a feasibility of sphincter-sparing intervention avoiding colostomy. It is based on concurrent application of fluoropyrimidines (5-fluorouracil, capecitabine) and radiotherapy (45 - 50,4 Gy). It shows less acute toxicity and improves local control rate in comparison to adjuvant treatment. Unfortunately, neoadjuvant chemoradiotherapy is not beneficial for all patients. The treatment response ranges from a complete pathological remission (pCR, ypT0ypN0) to a resistance. It is reported that cca 15 percent of patients with advanced rectal cancer show pCR which is indicative of improved long-term prognosis.

[Possibilities of resistance prediction to neoadjuvant concomitant chemoradiotherapy in the treatment algorithm of patients with rectal carcinoma]

GARAJOVA, INGRID;
2008

Abstract

Neoadjuvant concomitant chemoradiotherapy has become a standard treatment of locally advanced rectal adenocarcinomas (LARA). It leads to shrinkage of the tumor mass and subsequently to an increase in complete resections (R0 resections), increasing a feasibility of sphincter-sparing intervention avoiding colostomy. It is based on concurrent application of fluoropyrimidines (5-fluorouracil, capecitabine) and radiotherapy (45 - 50,4 Gy). It shows less acute toxicity and improves local control rate in comparison to adjuvant treatment. Unfortunately, neoadjuvant chemoradiotherapy is not beneficial for all patients. The treatment response ranges from a complete pathological remission (pCR, ypT0ypN0) to a resistance. It is reported that cca 15 percent of patients with advanced rectal cancer show pCR which is indicative of improved long-term prognosis.
2008
Garajová, I; Svoboda, M; Slabý, O; Kocáková, I; Fabian, P; Kocák, I; Vyzula, R
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/580607
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