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      Coloretal cancer in pregnant women Translated title: Cancro colorectal na mulher grávida

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          Abstract

          Abstract Background Colorectal cancer in pregnancy is a rare pathology with limited high-grade evidence available for guidance. The diagnosis of CRC in pregnant women is usually delayed, and once diagnosis is made, challenges exist as treatment options may be limited. Objective The study aims to highlight the importance of early investigation of symptomatic patients during pregnancy, as well as to update treatment and prognosis in CRC. Methods A literature search in PubMed database, including articles from 2006 to 2016 and cross-research articles with the initial research. Results Pregnancy can limit and contraindicate the utilization of standard diagnostic and therapeutic tools, which in particular can hamper the liberal use of colonoscopy and CT. Physical evaluation and abdominal US are first recommended; besides, MRI or CT may be used, only in indicated cases. Surgery is the main stay of treatment but radiotherapy and chemotherapy have significant role in posterior management of tumour. Conclusions Many studies are needed in order to achieve development in CRC pathogenesis during pregnancy as well as in treatment outcomes. The potential curative treatment of the disease should be the main aim of treatment when considering CRC in pregnancy. However, it is crucial to adapt the treatment to each patient, taking into account conscious decision on pregnancy further management.

          Translated abstract

          Resumo Introdução O cancro colorretal na gravidez é uma patologia rara, com limitada evidência científica para orientação terapêutica. O diagnóstico de cancro coloretal em mulheres grávidas é tardio e, quando o diagnóstico é feito, as opções de tratamento podem ser limitadas. Objetivo O objetivo deste estudo é ressalvar a importância da investigação precoce de pacientes sintomáticas durante a gravidez, assim como avaliar os atuais métodos de tratamento e prognóstico no CCR. Métodos A pesquisa bibliográfica foi realizada na base de dados PubMed, incluindo artigos a partir de 2006 até 2016, assim como artigos de pesquisa cruzada com os artigos iniciais. Resultados A gravidez pode limitar e contra-indicar a utilização de ferramentas de diagnóstico e terapêuticas convencionais, assim como dificultar o uso indiscriminado de colonoscopia e tomografia computadorizada. A avaliação física e a ecografia abdominal são a primeira linha para diagnóstico. No entanto, em casos selecionados, a ressonância magnética ou a tomografia computadorizada também podem ser usadas. A cirurgia é o gold-standard mas a radioterapia e a quimioterapia assumem um papel cada vez mais relevante no tratamento multidisciplinar destes tumores. Discussão Como os sintomas abdominais são comuns na gravidez e cancro coloretal pode simulá-los, o diagnóstico diferencial entre estas duas patologias é crucial, já que intervenções precoces podem ser curativas. Após diagnóstico, o seguimento das grávidas deve ser individualizado, dependendo de vários fatores. Porém, já que atualmente o tratamento do cancro é possível na gravidez, a probabilidade de sobrevivência da paciente não deve ser diminuída devido ao diagnóstico tardio. Conclusões Mais estudos são necessários para saber mais acerca da patogénese do cancro coloretal na gravidez, assim como os resultados após tratamento. O potencial objetivo é o tratamento oncológico do cancro coloretal. No entanto, é crucial adaptar o tratamento a cada paciente, tendo em conta a sua decisão consciente acerca da continuação da gravidez.

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          Most cited references30

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          Guidelines for the clinical management of Lynch syndrome (hereditary non-polyposis cancer).

          Lynch syndrome (hereditary non-polyposis colorectal cancer) is characterised by the development of colorectal cancer, endometrial cancer and various other cancers, and is caused by a mutation in one of the mismatch repair genes: MLH1, MSH2, MSH6 or PMS2. The discovery of these genes, 15 years ago, has led to the identification of large numbers of affected families. In April 2006, a workshop was organised by a group of European experts in hereditary gastrointestinal cancer (the Mallorca-group), aiming to establish guidelines for the clinical management of Lynch syndrome. 21 experts from nine European countries participated in this workshop. Prior to the meeting, various participants prepared the key management issues of debate according to the latest publications. A systematic literature search using Pubmed and the Cochrane Database of Systematic Reviews reference lists of retrieved articles and manual searches of relevant articles was performed. During the workshop, all recommendations were discussed in detail. Because most of the studies that form the basis for the recommendations were descriptive and/or retrospective in nature, many of them were based on expert opinion. The guidelines described in this manuscript may be helpful for the appropriate management of families with Lynch syndrome. Prospective controlled studies should be undertaken to improve further the care of these families.
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            Gynecologic cancers in pregnancy: guidelines of a second international consensus meeting.

            This study aimed to provide timely and effective guidance for pregnant women and health care providers to optimize maternal treatment and fetal protection and to promote effective management of the mother, fetus, and neonate when administering potentially teratogenic medications. New insights and more experience were gained since the first consensus meeting 5 years ago.
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              Non-obstetrical acute abdomen during pregnancy.

              Acute abdomen in pregnancy remains one of the most challenging diagnostic and therapeutic dilemmas today. The incidence of acute abdomen during pregnancy is 1 in 500-635 pregnancies. Despite advancements in medical technology, preoperative diagnosis of acute abdominal conditions is still inaccurate. Laboratory parameters are not specific and often altered as a physiologic consequence of pregnancy. Use of laparoscopic procedures as diagnostic tools makes diagnosis of such conditions earlier, more accurate, and safer. Appendicitis is the most common cause of the acute abdomen during pregnancy, occurring with a usual frequency of 1 in 500-2000 pregnancies, which amounts to 25% of operative indications for non-obstetric surgery during pregnancy. Surgical treatment is indicated in most cases, as in nonpregnant women. Laparoscopic procedures in the treatment of acute abdomen in pregnancy proved safe and accurate, and in selected groups of patients are becoming the procedures of choice with a perspective for the widening of such indications with more frequent use and subsequent optimal results. Despite these advances, laparotomy still remains the procedure of choice in complicated and uncertain cases.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                jcol
                Journal of Coloproctology (Rio de Janeiro)
                J. Coloproctol. (Rio J.)
                Sociedade Brasileira de Coloproctologia (Rio de Janeiro, RJ, Brazil )
                2237-9363
                2317-6423
                September 2017
                : 37
                : 3
                : 255-262
                Affiliations
                [2] Porto orgnameCentro Hospitalar São João orgdiv1Serviço de Cirurgia Geral Portugal
                [1] Porto orgnameUniversidade do Porto orgdiv1Faculdade de Medicina Portugal
                Article
                S2237-93632017000300255
                10.1016/j.jcol.2017.06.001
                66d546fa-341d-4075-8701-1709a784af7f

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 01 February 2017
                : 19 June 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 31, Pages: 8
                Product

                SciELO Brazil


                Colon cancer,Rectal cancer,Pregnancy,Cancer diagnosis,Cancer treatment,Cancro do cólon,Cancro do reto,Gravidez,Diagnóstico do cancro,Tratamento do cancro

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