Risk factors for the development of endometrial lesions in breast cancer patients using tamoxyphen: a retrospective cohort study

breast cancer is the cancer with the highest incidence in women in Brazil, representing 29.7% of all cancers. More than two thirds of women with breast cancer show expression for hormone receptors, and in these cases, hormone therapy with tamoxifen is indicated, which may represent a risk factor for...

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Veröffentlicht in:Revista do Colegio Brasileiro de Cirurgioes 2023, Vol.50, p.e20233442
Hauptverfasser: Vizzotto, Jr, Alvo Orlando, Nicolau, Sergio Mancini, Lopes, Guilherme Munhoz, Castelo Filho, Adauto
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container_start_page e20233442
container_title Revista do Colegio Brasileiro de Cirurgioes
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creator Vizzotto, Jr, Alvo Orlando
Nicolau, Sergio Mancini
Lopes, Guilherme Munhoz
Castelo Filho, Adauto
description breast cancer is the cancer with the highest incidence in women in Brazil, representing 29.7% of all cancers. More than two thirds of women with breast cancer show expression for hormone receptors, and in these cases, hormone therapy with tamoxifen is indicated, which may represent a risk factor for the development of endometrial cancer (four-fold greater relative risk). this study aimed to evaluate the association of tamoxifen and the development of endometrial disturbances and to assess possible other associated risk factors. a total of 364 breast cancer patients were evaluated, 286 who used tamoxifen and 78 who did not use this hormone therapy. Results: patients who used tamoxifen had a mean follow-up time of 51.42 months similar to those without hormone therapy (p=0.081). A total of 21 (7.3%) women who used tamofixen and no cases among women without hormone therapy presented endometrial changes during follow-up (p=0.01). Despite information regarding obesity was available for only 270 women, obesity was also significantly associated with the development of endometrial changes (p=0.008). furthermore, the association between tamofixen and endometrial changes remained significant (p=0.039) after adjusting for obesity.
doi_str_mv 10.1590/0100-6991e-20233442-en
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More than two thirds of women with breast cancer show expression for hormone receptors, and in these cases, hormone therapy with tamoxifen is indicated, which may represent a risk factor for the development of endometrial cancer (four-fold greater relative risk). this study aimed to evaluate the association of tamoxifen and the development of endometrial disturbances and to assess possible other associated risk factors. a total of 364 breast cancer patients were evaluated, 286 who used tamoxifen and 78 who did not use this hormone therapy. Results: patients who used tamoxifen had a mean follow-up time of 51.42 months similar to those without hormone therapy (p=0.081). A total of 21 (7.3%) women who used tamofixen and no cases among women without hormone therapy presented endometrial changes during follow-up (p=0.01). Despite information regarding obesity was available for only 270 women, obesity was also significantly associated with the development of endometrial changes (p=0.008). furthermore, the association between tamofixen and endometrial changes remained significant (p=0.039) after adjusting for obesity.</description><identifier>ISSN: 0100-6991</identifier><identifier>EISSN: 1809-4546</identifier><identifier>DOI: 10.1590/0100-6991e-20233442-en</identifier><identifier>PMID: 36995835</identifier><language>eng</language><publisher>Brazil: Colégio Brasileiro de Cirurgiões</publisher><subject>Breast Neoplasms ; Breast Neoplasms - pathology ; Endometrial Neoplasms - chemically induced ; Endometrial Neoplasms - epidemiology ; Female ; Hormones ; Humans ; Obesity ; Obesity - complications ; Original ; Retrospective Studies ; Risk Factors ; Tamoxifen ; Tamoxifen - adverse effects ; Uterine Diseases</subject><ispartof>Revista do Colegio Brasileiro de Cirurgioes, 2023, Vol.50, p.e20233442</ispartof><rights>2023 Revista do Colégio Brasileiro de Cirurgiões 2023</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c435n-94fbdfe58f2790902a5cfa188f5a87e0ad7d4eda3828aa5372c1613c15e2ac163</citedby><cites>FETCH-LOGICAL-c435n-94fbdfe58f2790902a5cfa188f5a87e0ad7d4eda3828aa5372c1613c15e2ac163</cites><orcidid>0000-0001-6745-6502 ; 0000-0002-0290-6143 ; 0000-0003-3682-8443 ; 0000-0003-3767-7616</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10595044/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10595044/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,4024,27923,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36995835$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Vizzotto, Jr, Alvo Orlando</creatorcontrib><creatorcontrib>Nicolau, Sergio Mancini</creatorcontrib><creatorcontrib>Lopes, Guilherme Munhoz</creatorcontrib><creatorcontrib>Castelo Filho, Adauto</creatorcontrib><title>Risk factors for the development of endometrial lesions in breast cancer patients using tamoxyphen: a retrospective cohort study</title><title>Revista do Colegio Brasileiro de Cirurgioes</title><addtitle>Rev Col Bras Cir</addtitle><description>breast cancer is the cancer with the highest incidence in women in Brazil, representing 29.7% of all cancers. More than two thirds of women with breast cancer show expression for hormone receptors, and in these cases, hormone therapy with tamoxifen is indicated, which may represent a risk factor for the development of endometrial cancer (four-fold greater relative risk). this study aimed to evaluate the association of tamoxifen and the development of endometrial disturbances and to assess possible other associated risk factors. a total of 364 breast cancer patients were evaluated, 286 who used tamoxifen and 78 who did not use this hormone therapy. Results: patients who used tamoxifen had a mean follow-up time of 51.42 months similar to those without hormone therapy (p=0.081). A total of 21 (7.3%) women who used tamofixen and no cases among women without hormone therapy presented endometrial changes during follow-up (p=0.01). 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subjects Breast Neoplasms
Breast Neoplasms - pathology
Endometrial Neoplasms - chemically induced
Endometrial Neoplasms - epidemiology
Female
Hormones
Humans
Obesity
Obesity - complications
Original
Retrospective Studies
Risk Factors
Tamoxifen
Tamoxifen - adverse effects
Uterine Diseases
title Risk factors for the development of endometrial lesions in breast cancer patients using tamoxyphen: a retrospective cohort study
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