Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer

Detalhes bibliográficos
Autor(a) principal: Rêgo,Rodrigo Soares Napoleão do
Data de Publicação: 2011
Outros Autores: Queiroz,Fábio Lopes de, Costa,Breno Xaia Martins da, Rabelo,Fernanda Elias Ferreira, Lamounier,Paulo Cesar de Carvalho, Silva,Luciana Costa, Alves Filho,Valdivino, Carmona,Maria Zuleime
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Coloproctology (Rio de Janeiro. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2237-93632011000400004
Resumo: INTRODUCTION: Neoadjuvant chemoradiation promotes tumor size reduction and staging before the surgery, reducing the risk of involving the circumferential resection margin and local recurrence. For patients who have been submitted to the neoadjuvant therapy, the usefulness of a second nuclear magnetic resonance (MRI) after chemoradiation has not been clearly explained. Objective: Assess the degree of tumor regression and downstaging after chemoradiation using MRI, compared with the pathology, and its correlation with surgical outcomes and patient prognosis. METHODS: This study investigated 13 patients. Their mean age was 52.3 years and 69.23% were male. RESULTS: The agreement in T and N staging was 30.76%, between the second MRI and pathology, overestimated in 55.55% of the remaining. T staging agreement was 53.84% and N staging agreement, 61.53%. The circumferential resection margin was free of cancer in 100%. The survival rate was 92%, with 75% disease-free in a mean follow-up of 1-2 years. CONCLUSION: A second MRI after chemoradiation can evaluate the degree of tumor regression, but with low compliance in relation to pathology, with tendency to overstaging. More studies are required to confirm these initial observations.
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spelling Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancermagnetic resonance imagingrectal cancerneoadjuvant therapyINTRODUCTION: Neoadjuvant chemoradiation promotes tumor size reduction and staging before the surgery, reducing the risk of involving the circumferential resection margin and local recurrence. For patients who have been submitted to the neoadjuvant therapy, the usefulness of a second nuclear magnetic resonance (MRI) after chemoradiation has not been clearly explained. Objective: Assess the degree of tumor regression and downstaging after chemoradiation using MRI, compared with the pathology, and its correlation with surgical outcomes and patient prognosis. METHODS: This study investigated 13 patients. Their mean age was 52.3 years and 69.23% were male. RESULTS: The agreement in T and N staging was 30.76%, between the second MRI and pathology, overestimated in 55.55% of the remaining. T staging agreement was 53.84% and N staging agreement, 61.53%. The circumferential resection margin was free of cancer in 100%. The survival rate was 92%, with 75% disease-free in a mean follow-up of 1-2 years. CONCLUSION: A second MRI after chemoradiation can evaluate the degree of tumor regression, but with low compliance in relation to pathology, with tendency to overstaging. More studies are required to confirm these initial observations.Sociedade Brasileira de Coloproctologia2011-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2237-93632011000400004Journal of Coloproctology (Rio de Janeiro) v.31 n.4 2011reponame:Journal of Coloproctology (Rio de Janeiro. Online)instname:Sociedade Brasileira de Coloproctologia (SBCP)instacron:SBCP10.1590/S2237-93632011000400004info:eu-repo/semantics/openAccessRêgo,Rodrigo Soares Napoleão doQueiroz,Fábio Lopes deCosta,Breno Xaia Martins daRabelo,Fernanda Elias FerreiraLamounier,Paulo Cesar de CarvalhoSilva,Luciana CostaAlves Filho,ValdivinoCarmona,Maria Zuleimeeng2012-05-07T00:00:00Zoai:scielo:S2237-93632011000400004Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2237-9363&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcp@sbcp.org.br2317-64232237-9363opendoar:2012-05-07T00:00Journal of Coloproctology (Rio de Janeiro. Online) - Sociedade Brasileira de Coloproctologia (SBCP)false
dc.title.none.fl_str_mv Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
title Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
spellingShingle Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
Rêgo,Rodrigo Soares Napoleão do
magnetic resonance imaging
rectal cancer
neoadjuvant therapy
title_short Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
title_full Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
title_fullStr Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
title_full_unstemmed Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
title_sort Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
author Rêgo,Rodrigo Soares Napoleão do
author_facet Rêgo,Rodrigo Soares Napoleão do
Queiroz,Fábio Lopes de
Costa,Breno Xaia Martins da
Rabelo,Fernanda Elias Ferreira
Lamounier,Paulo Cesar de Carvalho
Silva,Luciana Costa
Alves Filho,Valdivino
Carmona,Maria Zuleime
author_role author
author2 Queiroz,Fábio Lopes de
Costa,Breno Xaia Martins da
Rabelo,Fernanda Elias Ferreira
Lamounier,Paulo Cesar de Carvalho
Silva,Luciana Costa
Alves Filho,Valdivino
Carmona,Maria Zuleime
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Rêgo,Rodrigo Soares Napoleão do
Queiroz,Fábio Lopes de
Costa,Breno Xaia Martins da
Rabelo,Fernanda Elias Ferreira
Lamounier,Paulo Cesar de Carvalho
Silva,Luciana Costa
Alves Filho,Valdivino
Carmona,Maria Zuleime
dc.subject.por.fl_str_mv magnetic resonance imaging
rectal cancer
neoadjuvant therapy
topic magnetic resonance imaging
rectal cancer
neoadjuvant therapy
description INTRODUCTION: Neoadjuvant chemoradiation promotes tumor size reduction and staging before the surgery, reducing the risk of involving the circumferential resection margin and local recurrence. For patients who have been submitted to the neoadjuvant therapy, the usefulness of a second nuclear magnetic resonance (MRI) after chemoradiation has not been clearly explained. Objective: Assess the degree of tumor regression and downstaging after chemoradiation using MRI, compared with the pathology, and its correlation with surgical outcomes and patient prognosis. METHODS: This study investigated 13 patients. Their mean age was 52.3 years and 69.23% were male. RESULTS: The agreement in T and N staging was 30.76%, between the second MRI and pathology, overestimated in 55.55% of the remaining. T staging agreement was 53.84% and N staging agreement, 61.53%. The circumferential resection margin was free of cancer in 100%. The survival rate was 92%, with 75% disease-free in a mean follow-up of 1-2 years. CONCLUSION: A second MRI after chemoradiation can evaluate the degree of tumor regression, but with low compliance in relation to pathology, with tendency to overstaging. More studies are required to confirm these initial observations.
publishDate 2011
dc.date.none.fl_str_mv 2011-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2237-93632011000400004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2237-93632011000400004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S2237-93632011000400004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Coloproctologia
publisher.none.fl_str_mv Sociedade Brasileira de Coloproctologia
dc.source.none.fl_str_mv Journal of Coloproctology (Rio de Janeiro) v.31 n.4 2011
reponame:Journal of Coloproctology (Rio de Janeiro. Online)
instname:Sociedade Brasileira de Coloproctologia (SBCP)
instacron:SBCP
instname_str Sociedade Brasileira de Coloproctologia (SBCP)
instacron_str SBCP
institution SBCP
reponame_str Journal of Coloproctology (Rio de Janeiro. Online)
collection Journal of Coloproctology (Rio de Janeiro. Online)
repository.name.fl_str_mv Journal of Coloproctology (Rio de Janeiro. Online) - Sociedade Brasileira de Coloproctologia (SBCP)
repository.mail.fl_str_mv ||sbcp@sbcp.org.br
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