Is there a proximal shift in the distribution of colorectal adenomas?

Detalhes bibliográficos
Autor(a) principal: Oliveira, AM
Data de Publicação: 2015
Outros Autores: Anapaz, V, Lourenço, L, Rodrigues, C, Alberto, S, Martins, A, Deus, JR, Reis, J
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.10/1597
Resumo: INTRODUCTION: Several studies have shown a proximal shift of colorectal cancer (CRC) during the last decades. However, few have analyzed the changing distribution of adenomas over time. AIM: The aim of this study was to compare the site and the characteristics of colorectal adenomas, in a single center, during two periods. METHODS: We conducted a retrospective, observational study in a single hospital of adenomas removed during a total colonoscopy in two one-year periods: 2003 (period 1) and 2012 (period 2). Patients with inflammatory bowel disease, familial adenomatous polyposis, hereditary non-polyposis colorectal cancer syndrome, or history of CRC were excluded from the study. The χ(2) statistical test was performed. P values less than 0.05 were considered statistically significant. RESULTS: During the two considered periods, a total of 864 adenomas from 2394 complete colonoscopies were analyzed: 333 adenomas from 998 colonoscopies during period 1 and 531 adenomas from 1396 colonoscopies during period 2. There was a significant increase in the proportion of adenomatous polyps in the proximal colon from period 1 to 2 (30.6% to 38.8% (p = 0.015)). Comparing the advanced features of adenomas between the two periods, it was noted that in period 2, the number of adenomas with size ≥1 cm (p = 0.001), high-grade dysplasia (p = 0.001), and villous features (p < 0.0001) had a significant increase compared to period 1. CONCLUSION: Incidence of adenomatous polyps in the proximal colon as well as adenomas with advanced features has increased in the last years. This finding may have important implications regarding methods of CRC screening.
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spelling Is there a proximal shift in the distribution of colorectal adenomas?Colorectal neoplasmsMass screeningNeoplasias colorrectaisRastreioINTRODUCTION: Several studies have shown a proximal shift of colorectal cancer (CRC) during the last decades. However, few have analyzed the changing distribution of adenomas over time. AIM: The aim of this study was to compare the site and the characteristics of colorectal adenomas, in a single center, during two periods. METHODS: We conducted a retrospective, observational study in a single hospital of adenomas removed during a total colonoscopy in two one-year periods: 2003 (period 1) and 2012 (period 2). Patients with inflammatory bowel disease, familial adenomatous polyposis, hereditary non-polyposis colorectal cancer syndrome, or history of CRC were excluded from the study. The χ(2) statistical test was performed. P values less than 0.05 were considered statistically significant. RESULTS: During the two considered periods, a total of 864 adenomas from 2394 complete colonoscopies were analyzed: 333 adenomas from 998 colonoscopies during period 1 and 531 adenomas from 1396 colonoscopies during period 2. There was a significant increase in the proportion of adenomatous polyps in the proximal colon from period 1 to 2 (30.6% to 38.8% (p = 0.015)). Comparing the advanced features of adenomas between the two periods, it was noted that in period 2, the number of adenomas with size ≥1 cm (p = 0.001), high-grade dysplasia (p = 0.001), and villous features (p < 0.0001) had a significant increase compared to period 1. CONCLUSION: Incidence of adenomatous polyps in the proximal colon as well as adenomas with advanced features has increased in the last years. This finding may have important implications regarding methods of CRC screening.Sage PublicationsRepositório do Hospital Prof. Doutor Fernando FonsecaOliveira, AMAnapaz, VLourenço, LRodrigues, CAlberto, SMartins, ADeus, JRReis, J2016-03-29T15:55:38Z2015-01-01T00:00:00Z2015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.10/1597engUnited European Gastroenterol J. 2015 Aug;3(4):353-72050-641410.1177/2050640615577534info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-20T15:52:21Zoai:repositorio.hff.min-saude.pt:10400.10/1597Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:52:40.544534Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Is there a proximal shift in the distribution of colorectal adenomas?
title Is there a proximal shift in the distribution of colorectal adenomas?
spellingShingle Is there a proximal shift in the distribution of colorectal adenomas?
Oliveira, AM
Colorectal neoplasms
Mass screening
Neoplasias colorrectais
Rastreio
title_short Is there a proximal shift in the distribution of colorectal adenomas?
title_full Is there a proximal shift in the distribution of colorectal adenomas?
title_fullStr Is there a proximal shift in the distribution of colorectal adenomas?
title_full_unstemmed Is there a proximal shift in the distribution of colorectal adenomas?
title_sort Is there a proximal shift in the distribution of colorectal adenomas?
author Oliveira, AM
author_facet Oliveira, AM
Anapaz, V
Lourenço, L
Rodrigues, C
Alberto, S
Martins, A
Deus, JR
Reis, J
author_role author
author2 Anapaz, V
Lourenço, L
Rodrigues, C
Alberto, S
Martins, A
Deus, JR
Reis, J
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do Hospital Prof. Doutor Fernando Fonseca
dc.contributor.author.fl_str_mv Oliveira, AM
Anapaz, V
Lourenço, L
Rodrigues, C
Alberto, S
Martins, A
Deus, JR
Reis, J
dc.subject.por.fl_str_mv Colorectal neoplasms
Mass screening
Neoplasias colorrectais
Rastreio
topic Colorectal neoplasms
Mass screening
Neoplasias colorrectais
Rastreio
description INTRODUCTION: Several studies have shown a proximal shift of colorectal cancer (CRC) during the last decades. However, few have analyzed the changing distribution of adenomas over time. AIM: The aim of this study was to compare the site and the characteristics of colorectal adenomas, in a single center, during two periods. METHODS: We conducted a retrospective, observational study in a single hospital of adenomas removed during a total colonoscopy in two one-year periods: 2003 (period 1) and 2012 (period 2). Patients with inflammatory bowel disease, familial adenomatous polyposis, hereditary non-polyposis colorectal cancer syndrome, or history of CRC were excluded from the study. The χ(2) statistical test was performed. P values less than 0.05 were considered statistically significant. RESULTS: During the two considered periods, a total of 864 adenomas from 2394 complete colonoscopies were analyzed: 333 adenomas from 998 colonoscopies during period 1 and 531 adenomas from 1396 colonoscopies during period 2. There was a significant increase in the proportion of adenomatous polyps in the proximal colon from period 1 to 2 (30.6% to 38.8% (p = 0.015)). Comparing the advanced features of adenomas between the two periods, it was noted that in period 2, the number of adenomas with size ≥1 cm (p = 0.001), high-grade dysplasia (p = 0.001), and villous features (p < 0.0001) had a significant increase compared to period 1. CONCLUSION: Incidence of adenomatous polyps in the proximal colon as well as adenomas with advanced features has increased in the last years. This finding may have important implications regarding methods of CRC screening.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01T00:00:00Z
2015-01-01T00:00:00Z
2016-03-29T15:55:38Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.10/1597
url http://hdl.handle.net/10400.10/1597
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv United European Gastroenterol J. 2015 Aug;3(4):353-7
2050-6414
10.1177/2050640615577534
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sage Publications
publisher.none.fl_str_mv Sage Publications
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instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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