Evaluation of response to neoadjuvant treatment, by nuclear magnetic resonance, as a predictor of oncologic results and survival of patients with rectal cancer
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , |
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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Journal of Coloproctology (Rio de Janeiro. Online) |
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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 |
_version_ |
1752126476965117952 |