ARE THERE ADVANTAGES IN DOUBLE TRANSIT RECONSTRUCTION AFTER TOTAL GASTRECTOMY IN PATIENTS WITH GASTRIC CANCER? A SYSTEMATIC REVIEW.

BACKGROUND: Curative treatment for gastric cancer involves tumor resection, followed by transit reconstruction, with Roux-en-Y being the main technique employed. To permit food transit to the duodenum, which is absent in Roux-en-Y, double transit reconstruction has been used, whose theoretical advantages seem to surpass the previous technique. AIMS: To compare the clinical evolution of gastric cancer patients who underwent total gastrectomy with Roux-en-Y and double tract reconstruction. METHODS: A systematic review was carried out on Web of Science, Scopus, EmbasE, SciELO, Virtual Health Library, PubMed, Cochrane, and Google Scholar databases. Data were collected until June 11, 2022. Observational studies or clinical trials evaluating patients submitted to double tract (DT) and Roux-en-Y (RY) reconstructions were included. There was no temporal or language restriction. Review articles, case reports, case series, and incomplete texts were excluded. The risk of bias was calculated using the Cochrane tool designed for randomized clinical trials. RESULTS: Four studies of good methodological quality were included, encompassing 209 participants. In the RY group, there was a greater reduction in food intake. In the DT group, the decrease in body mass index was less pronounced compared to preoperative values. CONCLUSIONS: The double tract reconstruction had better outcomes concerning body mass index and the time until starting a light diet; however, it did not present any advantages in relation to nutritional deficits, quality of life, and post-surgical complications.

CAN LOCAL ANESTHETICS HELP WITH THE HEALING PROCESS OF SURGICAL WOUNDS? / PODEM OS ANESTÉSICOS LOCAIS AJUDAR NO PROCESSO CICATRICIAL DAS FERIDAS CIRÚRGICAS?

Introduction: Evaluating the scarring differences between areas previously anesthetized with different local anesthetics is interesting to verify whether the choice of anesthetic helps in surgical healing in relation to inflammation, neovascularization and collagen deposition. Objectives: Review the existing literature with a focus on analyzing the role of local anesthetics in aiding the healing of surgical wounds. Method: Narrative review of literature selected from the SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed and Scopus platforms. Initially, the review searched for keywords in the focus of the research, based on MESH/DeCS with the following terms: "local anesthetics, healing, neovascularization, collagen" with AND or OR search, considering the title and/or abstract. Next, only those that were most related to the topic were included, and the texts were read for inclusion. Results: 73 articles were included, read and interpreted focusing on the role of anesthetics in healing, pain, side effects and the best that currently emerge in analgesia and scar potential. Conclusions: No differences were observed between the anesthetics studied in terms of healing, inflammation and neovascularization. However, there was a significant difference in the production of collagens with an intensity of 6 to 12 times greater than collagen types I, II and III with the use of levobupivacaine.

Introdução: Avaliar as diferenças cicatriciais entre áreas previamente anestesiadas com diferentes anestésicos locais é interessante para verificar se a escolha do anestésico auxilia na cicatrização cirúrgica em relação à inflamação, neovascularização e deposição de colágeno. Objetivos: Revisar a literatura existente com foco de análise sobre o papel dos anestésicos locais no auxílio da cicatrização de feridas cirúrgicas. Método: Revisão narrativa da literatura selecionada das plataformas SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed e Scopus.  Inicialmente a revisão realizou a busca por palavras-chave no foco da pesquisa, com base no MESH/DeCS com os seguintes termos: "anestésicos locais, cicatrização, neovascularização, colágeno" com busca AND ou OR, considerando o título e/ou resumo. A seguir, foram incluídos somente os que tinham maior relação ao tema, e realizada a leitura dos textos para inclusão. Resultados: Foram incluídos, lidos e interpretados 73 artigos enfocando o papel dos anestésicos na cicatrização, dor, efeitos colaterais e os melhores que despontam na atualidade na analgesia e potencial cicatricial. Conclusões: Não se observou diferenças entre anestésicos pesquisados quanto à cicatrização, inflamação e neovascularização. Contudo, verificou-se diferença significativa na produção de colágenos com intensidade de 6 a 12 vezes maior de colágenos tipos I, II e III com o uso da levobupivacaína.

MANAGEMENT OF SYMPTOMS RECURRENCE AFTER MYOTOMY FOR ACHALASIA. A PRACTICAL APPROACH.

BACKGROUND: Achalasia is an esophageal motility disorder, and myotomy is one of the most used treatment techniques. However, symptom persistence or recurrence occurs in 9 to 20% of cases. AIMS: This study aims to provide a practical approach for managing the recurrence or persistence of achalasia symptoms after myotomy. METHODS: A critical review was performed to gather evidence for a rational approach for managing the recurrence or persistence of achalasia symptoms after myotomy. RESULTS: To properly manage an achalasia patient with significant symptoms after myotomy, such as dysphagia, regurgitation, thoracic pain, and weight loss, it is necessary to classify symptoms, stratify severity, perform appropriate tests, and define a treatment strategy. A systematic differential diagnosis workup is essential to cover the main etiologies of symptoms recurrence or persistence after myotomy. Upper digestive endoscopy and dynamic digital radiography are the main tests that can be applied for investigation. The treatment options include endoscopic dilation, peroral endoscopic myotomy, redo surgery, and esophagectomy, and the decision should be based on the patient's individual characteristics. CONCLUSIONS: A good clinical evaluation and the use of proper tests jointly with a rational assessment, are essential for the management of symptoms recurrence or persistence after achalasia myotomy.

ARE THERE ENDOSCOPIC AND HISTOPATHOLOGICAL DIFFERENCES BETWEEN SUPERFICIAL SERRATED LESIONS IN THEIR INITIAL PHASES? / HÁ DIFERENÇAS ENDOSCÓPICAS E HISTOPATOLÓGICAS ENTRE LESÕES SERRILHADAS SUPERFICIAIS NAS SUAS FASES INICIAIS?

Introduction: Serrated lesions are considered precursors of colorectal adenocarcinomas. Studying them in their initial phases is important when thinking about cancer prevention, when they are hyperplastic lesions, or sessile serrated lesions. Objective: To carry out an integrative review of the literature to compare the endoscopic and histopathological characteristics in the initial phases of the disease, with the intention to help understand colorectal cancer. Methods: Integrative literature review based on existing analysis material on the digital platforms SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed and Scopus. The beginning was the search with the following descriptors: "serrated sessile lesions, colorectal carcinoma, superficial lesions", with AND or OR search, considering the title and/or abstract , and subsequently including only those with the highest correlation for reading the full texts. Results: 39 articles were included. Conclusion: The majority of superficially elevated serrated lesions measuring more than 5 mm and resected by colonoscopies are hyperplastic. They occur throughout the colon and rectum, while the serrated sessiles are preferentially located in the proximal colon. Hyperplastic ones generally do not present dysplasias and sessile serrated ones can have them intensely.

Introdução: Lesões serrilhadas são consideradas precursoras dos adenocarcinomas colorretais. Estudá-las em suas fases iniciais é importante ao pensar na prevenção do câncer, quando, então, são lesões hiperplásicas, ou sésseis serrilhadas Objetivo: Realizar revisão integrativa da literatura para comparar as características endoscópicas e histopatológicas nas fases iniciais da doença, com a intenção de auxiliar no entendimento do câncer colorretal. Métodos: Revisão integrativa da literatura baseada em material de análise existente nas plataformas digitais SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed e Scopus.  O início foi a busca com os seguintes descritores: "lesões sésseis serrilhadas, carcinoma colorretal, lesões superficiais", e seus equivalentes em inglês "serrated sessile lesions, colorectal carcinoma, superficial lesions" com busca AND ou OR, considerando o título e/ou resumo, e incluindo-se posteriormente somente  aqueles com maior correlação para leitura dos textos completos. Resultados:  Incluíram-se 39 artigos. Conclusão: A maioria das lesões serrilhadas superficialmente elevadas com mais de 5 mm e ressecadas por colonoscopias, são hiperplásicas. Elas ocorrem por todo o cólon e reto, enquanto as sésseis serrilhadas localizam-se preferencialmente no cólon proximal. As hiperplásicas geralmente não apresentam displasias e as sésseis serrilhadas podem tê-las de forma intensa.

GASTRIC NEUROENDOCRINE TUMOR: WHEN SURGICAL TREATMENT IS INDICATED?

BACKGROUND: Gastric neuroendocrine tumors are a heterogeneous group of neoplasms that produce bioactive substances. Their treatment varies according to staging and classification, using endoscopic techniques, open surgery, chemotherapy, radiotherapy, and drugs analogous to somatostatin. AIMS: To identify and review cases of gastric neuroendocrine neoplasia submitted to surgical treatment. METHODS: Review of surgically treated patients from 1983 to 2018. RESULTS: Fifteen patients were included, predominantly female (73.33%), with a mean age of 55.93 years. The most common symptom was epigastric pain (93.3%), and the mean time of symptom onset was 10.07 months. The preoperative upper digestive endoscopy (UDE) indicated a predominance of cases with 0 to 1 lesion (60%), sizing ≥1.5 cm (40%), located in the gastric antrum (53.33%), with ulceration (60%), and Borrmann III (33.33%) classification. The assessment of the surgical specimen indicated a predominance of invasive neuroendocrine tumors (60%), with angiolymphatic invasion in most cases (80%). Immunohistochemistry for chromogranin A was positive in 60% of cases and for synaptophysin in 66.7%, with a predominant Ki-67 index between 0 and 2%. Metastasis was observed in 20% of patients. The surgical procedure most performed was subtotal gastrectomy with Roux-en-Y reconstruction (53.3%). Tumor recurrence occurred in 20% of cases and a new treatment was required in 26.67%. CONCLUSIONS: Gastric neuroendocrine tumors have a low incidence in the general population, and surgical treatment is indicated for advanced lesions. The study of its management gains importance in view of the specificities of each case and the need for adequate conduct to prevent recurrences and complications.

CAN BLUE LASER IMAGING COLLABORATE IN THE DIFFERENTIAL DIAGNOSIS BETWEEN NEOPLASTIC AND NON-NEOPLASTIC COLORECTAL LESIONS? / PODE O BLUE LASER IMAGING COLABORAR NO DIAGNÓSTICO DIFERENCIAL ENTRE LESÕES NEOPLÁSICAS E NÃO NEOPLÁSICAS COLORRETAIS?

Introduction: Improved endoscopic imaging allows the differential diagnosis of colorectal lesions in real time through the study of the microvasculature. Objective: To review the use of Blue Laser Imaging (BLI) in analyzing the capillary patern for the differential diagnosis between neoplastic and non-neoplastic lesions. Method: This is an integrative review of the literature that collected information published on virtual platforms in Portuguese and English. The search for reading and analysis was carried out on the SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed and Scopus platforms. The descriptors taken from DeCS/MESH were: "Blue laser imaging. Endoscopy. Chromoendoscopy, Colorectal polyps. Magnification" and its English counterparts "Blue laser imaging. Image-enhanced endoscopy. Chromoendoscopy. Colorectal polyps. Magnification" with AND or OR search, considering the title and/or abstract. Only those that had the greatest correlation to the topic were included, and the review was based on them, with reading, in full, of the texts. Results: In the end, 22 articles resulted that made up this review. Conclusion: BLI associated with magnification showed good results in real-time predictive histological diagnosis for colon and rectal lesions.

Introdução: Imagem endoscópica aprimorada permite o diagnóstico diferencial das lesões colorretais em tempo real através do estudo da microvasculatura. Objetivo: Revisar o uso do Blue Laser Imaging (BLI) na análise do padrão dos capilares para o diagnóstico diferencial entre lesões neoplásicas e não neoplásicas. Método: Esta é revisão integrativa da literatura  que colheu informações publicadas em plataformas virtuais em português e inglês. A busca para leitura e análise foi realizada nas plataformas SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed e Scopus.  Os descritores retirados do DeCS/MESH foram: "Blue laser imaging. Endoscopia. Cromoendoscopia, Pólipos colorretais. Magnificação" e seus correspondentes em inglês "Blue laser imaging. Image-enhanced endoscopy. Chromoendoscopy. Colorectal polyps. Magnification" com busca AND ou OR, considerando o título e/ou resumo. Foram incluídos somente os que tivessem maior correlação ao tema, e neles foi baseada a revisão com leitura, na íntegra, dos textos. Resultados: Ao final resultaram  22 artigos que compuseram esta revisão. Conclusão: BLI associada à magnificação mostrou bons resultados no diagnóstico histológico preditivo em tempo real para as lesões de cólon e reto.

Association of Fibrinolytic Potential and Risk of Mortality in Cancer Patients.

Cancer is a leading cause of death, and the fibrinolytic system shows cooperative effects that facilitate the growth of tumors and the appearance of metastases. This prospective study aimed to evaluate the fibrinolytic potential in cancer patients and its association with mortality outcomes using the fluorometric method of simultaneous thrombin and plasmin generation. The study included 323 cancer patients and 148 healthy individuals. During the 12-month follow-up, 68 patients died. Compared to the control group, cancer patients showed alterations in thrombin production consistent with a hypercoagulability profile, and an increase in plasmin generation. Mortality risk was associated with two parameters of thrombin in both univariate and multivariable analysis: maximum amplitude (Wald 11.78, p < 0.001) and area under the curve (Wald 8.0, p < 0.005), while such associations were not observed for plasmin. In conclusion, this was the first study able to demonstrate the simultaneous evaluation of thrombin and plasmin generation in newly diagnosed untreated cancer patients. Patients with cancer have been observed to exhibit a hypercoagulable profile. During the study, two parameters linked to thrombin generation, MA and AUC, were identified and found to have a potential association with mortality risk. However, no associations were found with parameters related to plasmin generation.

FUTURE OF THE LANGUAGE MODELS IN HEALTHCARE: THE ROLE OF CHATGPT.

The field of medicine has always been at the forefront of technological innovation, constantly seeking new strategies to diagnose, treat, and prevent diseases. Guidelines for clinical practice to orientate medical teams regarding diagnosis, treatment, and prevention measures have increased over the years. The purpose is to gather the most medical knowledge to construct an orientation for practice. Evidence-based guidelines follow several main characteristics of a systematic review, including systematic and unbiased search, selection, and extraction of the source of evidence. In recent years, the rapid advancement of artificial intelligence has provided clinicians and patients with access to personalized, data-driven insights, support and new opportunities for healthcare professionals to improve patient outcomes, increase efficiency, and reduce costs. One of the most exciting developments in Artificial Intelligence has been the emergence of chatbots. A chatbot is a computer program used to simulate conversations with human users. Recently, OpenAI, a research organization focused on machine learning, developed ChatGPT, a large language model that generates human-like text. ChatGPT uses a type of AI known as a deep learning model. ChatGPT can quickly search and select pieces of evidence through numerous databases to provide answers to complex questions, reducing the time and effort required to research a particular topic manually. Consequently, language models can accelerate the creation of clinical practice guidelines. While there is no doubt that ChatGPT has the potential to revolutionize the way healthcare is delivered, it is essential to note that it should not be used as a substitute for human healthcare professionals. Instead, ChatGPT should be considered a tool that can be used to augment and support the work of healthcare professionals, helping them to provide better care to their patients.

FUTURE OF THE LANGUAGE MODELS IN HEALTHCARE: THE ROLE OF CHATGPT / Futuro dos modelos de linguagem nos cuidados em saúde: o papel do ChatGPT

The field of medicine has always been at the forefront of technological innovation, constantly seeking new strategies to diagnose, treat, and prevent diseases. Guidelines for clinical practice to orientate medical teams regarding diagnosis, treatment, and prevention measures have increased over the years. The purpose is to gather the most medical knowledge to construct an orientation for practice. Evidence-based guidelines follow several of the main characteristics of a systematic review, including systematic and unbiased search, selection, and extraction of the source of evidence. In recent years, the rapid advancement of artificial intelligence (AI) has provided clinicians and patients with access to personalized, data-driven insights, support and new opportunities for healthcare professionals to improve patient outcomes, increase efficiency, and reduce costs. One of the most exciting developments in AI has been the emergence of chatbots. A chatbot is a computer program to simulate conversation with human users. Recently, OpenAI, a research organization focused on machine learning, developed ChatGPT, a large language model that generates human-like text. ChatGPT uses a type of AI known as a deep learning model. ChatGPT can quickly search and select pieces of evidence through numerous databases to provide answers to complex questions, reducing the time and effort required to research a particular topic manually. Consequently, language models can accelerate the creation of clinical practice guidelines. While there is no doubt that ChatGPT has the potential to revolutionize the way healthcare is delivered, it is essential to note that it should not be used as a substitute for human healthcare professionals. Instead, ChatGPT should be seen as a tool that can be used to augment and support the work of healthcare professionals, helping them to provide better care to their patients.

A área da medicina sempre esteve na vanguarda da inovação tecnológica, buscando constantemente novas estratégias para diagnosticar, tratar e prevenir doenças. As diretrizes para a prática clínica são para orientar as equipes médicas quanto ao diagnóstico, tratamento e medidas de prevenção aumentaram ao longo dos anos. O objetivo é reunir o máximo de conhecimento médico para construir uma orientação para a prática. As diretrizes baseadas em evidências seguem várias das principais características de uma revisão sistemática, incluindo busca sistemática e imparcial, seleção e extração da fonte de evidência. Nos últimos anos, o rápido avanço da inteligência artificial (IA) forneceu aos médicos e pacientes acesso a informações personalizadas e baseadas em dados, suporte e novas oportunidades para os profissionais de saúde melhorarem os resultados dos pacientes, aumentarem a eficiência e reduzirem custos. Um dos desenvolvimentos mais empolgantes da IA foi o surgimento dos chatbots. Um chatbot é um programa de computador para simular conversas com usuários humanos. Recentemente, a OpenAI, uma organização de pesquisa focada em aprendizado de máquina, desenvolveu o ChatGPT, um grande modelo de linguagem que gera texto semelhante ao humano. O ChatGPT usa um tipo de IA conhecido como modelo de aprendizado profundo. O ChatGPT pode pesquisar e selecionar rapidamente evidências em vários bancos de dados para fornecer respostas a perguntas complexas, reduzindo o tempo e o esforço necessários para pesquisar um tópico específico manualmente. Consequentemente, os modelos de linguagem podem acelerar a criação de diretrizes de prática clínica. Embora não haja dúvida de que o ChatGPT tem potencial para revolucionar a forma como os cuidados de saúde são prestados, é essencial observar que não deve ser usado como substituto de profissionais de saúde humanos. Em vez disso, o ChatGPT deve ser visto como uma ferramenta que pode ser usada para aumentar e apoiar o trabalho dos profissionais de saúde, ajudando-os a prestar melhores cuidados aos seus pacientes.

ESOPHAGOCELE DUE TO TWO TIMES CAUSTIC INGESTIONS: RESECTION THROUGH VIDEOTHORACOSCOPY.

BACKGROUND: Caustic ingestion is still a health problem of utmost importance in the West. In developing countries, this incident remains at increase and it is associated with unfavorable factors like social, economic, and educational handicaps, besides a lack of prevention. Esophagocele is a rare consequence of caustic ingestion. AIM: We aimed to describe a patient with multiple caustic ingestions who presented an esophagocele resected by videothoracoscopy. METHODS: A woman ingested caustic soda when she was only 17 years old in a suicidal attempt during a depressive crisis. Initially, she was submitted to a retrosternal esophagocoloplasty with the maintenance of her damaged esophagus. After 1 year of this first surgery, she ingested caustic soda again in a new suicidal attempt. Her transposed large bowel in the first surgery became narrow, being replaced in a second surgery by a retrosternal esophagogastroplasty. Still, at the second surgery, her damaged esophagus remained in its original position in the posterior mediastinum. However, after 5 years, she developed an esophagocele. RESULTS: The esophagocele was resected through videothoracoscopy in a prone position, employing four trocars. The postoperative was uneventful. CONCLUSION: Esophageal exclusion must always be recorded because esophagocele presents unspecific symptoms. The videothoracoscopy in a prone position is an excellent technical option to resect esophagoceles.

Prognostic value of myosteatosis and systemic inflammation in patients with resectable gastric cancer: A retrospective study.

BACKGROUND/OBJECTIVES: The association between systemic inflammation and myosteatosis upon diagnosis of gastric cancer (GC) and whether these factors could predict survival outcomes is not clear. Our aim was to explore the association between systemic inflammation and myosteatosis upon diagnosis of GC, specially whether the co-occurrence of these factors could predict survival outcomes. SUBJECTS/METHODS: Computed tomography (CT) was performed at the level of the third lumbar vertebra for body composition analysis in 280 patients with GC. Myoesteatosis was defined as the lowest tertile of the muscle radiodensity distribution or based on clinical significance using optimal stratification analysis. Inflammatory indexes were measured, including the neutrophil-to-lymphocyte (NLR), platelet-to-lymphocyte and lymphocyte-to-monocyte ratios. RESULTS: Patients with low skeletal muscle (SM) radiodensity were more likely to be older than 65 years, have a higher body mass index and have diabetes. They also had higher intermuscular visceral and subcutaneous adipose tissue areas and indexes. The highest tertile of SM radiodensity was associated with better disease-free survival (DFS) (HR = 0.51, 95% CI [0.31, 0.84], ptrend = 0.020) and overall survival (OS) (HR = 0.49, 95% CI [0.29, 0.82], ptrend = 0.022). Patients with NLR > 2.3 and myosteatosis had the worst DFS and OS (HR = 2.77, 95% CI [1.54, 5.00], p = 0.001; HR = 3.31, 95% CI [1.79, 6.15], p < 0.001, respectively). CONCLUSION: Co-occurrence of myosteatosis and inflammation increased disease progression and death risk by almost three times. These regularly obtained biomarkers might improve prognostic risk prediction in resectable GC.

Gastric neuroendocrine tumor: when surgical treatment is indicated? / Tumor neuroendócrino gástrico: quando tratamento cirúrgico está indicado?

ABSTRACT BACKGROUND: Gastric neuroendocrine tumors are a heterogeneous group of neoplasms that produce bioactive substances. Their treatment varies according to staging and classification, using endoscopic techniques, open surgery, chemotherapy, radiotherapy, and drugs analogous to somatostatin. AIMS: To identify and review cases of gastric neuroendocrine neoplasia submitted to surgical treatment. METHODS: Review of surgically treated patients from 1983 to 2018. RESULTS: Fifteen patients were included, predominantly female (73.33%), with a mean age of 55.93 years. The most common symptom was epigastric pain (93.3%), and the mean time of symptom onset was 10.07 months. The preoperative upper digestive endoscopy (UDE) indicated a predominance of cases with 0 to 1 lesion (60%), sizing ≥1.5 cm (40%), located in the gastric antrum (53.33%), with ulceration (60%), and Borrmann III (33.33%) classification. The assessment of the surgical specimen indicated a predominance of invasive neuroendocrine tumors (60%), with angiolymphatic invasion in most cases (80%). Immunohistochemistry for chromogranin A was positive in 60% of cases and for synaptophysin in 66.7%, with a predominant Ki-67 index between 0 and 2%. Metastasis was observed in 20% of patients. The surgical procedure most performed was subtotal gastrectomy with Roux-en-Y reconstruction (53.3%). Tumor recurrence occurred in 20% of cases and a new treatment was required in 26.67%. CONCLUSIONS: Gastric neuroendocrine tumors have a low incidence in the general population, and surgical treatment is indicated for advanced lesions. The study of its management gains importance in view of the specificities of each case and the need for adequate conduct to prevent recurrences and complications.

RESUMO RACIONAL: Os tumores neuroendócrinos gástricos são um grupo heterogêneo de neoplasias produtoras de substâncias bioativas, sendo o seu tratamento variável de acordo com o estadiamento e a classificação, sendo utilizadas técnicas endoscópicas, cirurgias abertas, quimioterapia, radioterapia e fármacos análogos da somatostatina. OBJETIVOS: Identificar e revisar os casos de neoplasia neuroendócrina gástrica submetidos a tratamento cirúrgico. MÉTODOS: Revisão os doentes tratados cirurgicamente de 1983 e 2018. RESULTADOS: Foram incluídos 15 pacientes, com predomínio do sexo feminino (73,33%) e média de idade de 55,93 anos. O sintoma mais comum foi a epigastralgia (93,3%) e o tempo médio do início dos sintomas foi de 10,07 meses. A endoscopia digestiva pré-operatória indicou predomínio de casos com 0 a 1 lesões (60%), de tamanho ≥ 1,5 cm (40%), localizadas em antro gástrico (53,33%), com ulceração (60%), Borrmann 3 (33,33%). A avaliação da peça cirúrgica indicou um predomínio de tumores neuroendócrinos invasivos (60%), com invasão angiolinfática na maioria dos casos (80%). A imuno-histoquímica para cromogranina A foi positiva em 60% dos casos e para sinaptofisina em 66,7%, com índice de Ki-67 predominante entre 0 e 2%. Metástases foram observadas em 20% dos casos. O procedimento cirúrgico mais utilizado foi a gastrectomia subtotal com reconstrução em Y de Roux (53,3%). Recidiva tumoral ocorreu em 20% dos casos e novo tratamento foi necessário em 26,67% dos casos. CONCLUSÕES: Os tumores neuroendócrinos gástricos apresentam baixa incidência na população em geral, e o tratamento cirúrgico está indicado nas lesões avançadas. O estudo de seu manejo ganha importância frente às especificidades de cada caso e a necessidade de conduta adequada para a prevenção de recidivas e complicações.

Future of the language models in healthcare: the role of chatgpt / Futuro dos modelos de linguagem nos cuidados em saúde: o papel do chatgpt

ABSTRACT The field of medicine has always been at the forefront of technological innovation, constantly seeking new strategies to diagnose, treat, and prevent diseases. Guidelines for clinical practice to orientate medical teams regarding diagnosis, treatment, and prevention measures have increased over the years. The purpose is to gather the most medical knowledge to construct an orientation for practice. Evidence-based guidelines follow several main characteristics of a systematic review, including systematic and unbiased search, selection, and extraction of the source of evidence. In recent years, the rapid advancement of artificial intelligence has provided clinicians and patients with access to personalized, data-driven insights, support and new opportunities for healthcare professionals to improve patient outcomes, increase efficiency, and reduce costs. One of the most exciting developments in Artificial Intelligence has been the emergence of chatbots. A chatbot is a computer program used to simulate conversations with human users. Recently, OpenAI, a research organization focused on machine learning, developed ChatGPT, a large language model that generates human-like text. ChatGPT uses a type of AI known as a deep learning model. ChatGPT can quickly search and select pieces of evidence through numerous databases to provide answers to complex questions, reducing the time and effort required to research a particular topic manually. Consequently, language models can accelerate the creation of clinical practice guidelines. While there is no doubt that ChatGPT has the potential to revolutionize the way healthcare is delivered, it is essential to note that it should not be used as a substitute for human healthcare professionals. Instead, ChatGPT should be considered a tool that can be used to augment and support the work of healthcare professionals, helping them to provide better care to their patients.

RESUMO A área da medicina sempre esteve na vanguarda da inovação tecnológica, buscando constantemente novas estratégias para diagnosticar, tratar e prevenir doenças. As diretrizes para a prática clínica são para orientar as equipes médicas quanto ao diagnóstico, tratamento e medidas de prevenção aumentaram ao longo dos anos. O objetivo é reunir o máximo de conhecimento médico para construir uma orientação para a prática. As diretrizes baseadas em evidências seguem várias das principais características de uma revisão sistemática, incluindo busca sistemática e imparcial, seleção e extração da fonte de evidência. Nos últimos anos, o rápido avanço da inteligência artificial forneceu aos médicos e pacientes acesso a informações personalizadas e baseadas em dados, suporte e novas oportunidades para os profissionais de saúde melhorarem os resultados dos pacientes, aumentarem a eficiência e reduzirem custos. Um dos desenvolvimentos mais empolgantes da Inteligência Artificial foi o surgimento dos chatbots. Um chatbot é um programa de computador para simular conversas com usuários humanos. Recentemente, a OpenAI, uma organização de pesquisa focada em aprendizado de máquina, desenvolveu o ChatGPT, um grande modelo de linguagem que gera texto semelhante ao humano. O ChatGPT usa um tipo de inteligência artificial conhecido como modelo de aprendizado profundo. O ChatGPT pode pesquisar e selecionar rapidamente evidências em vários bancos de dados para fornecer respostas a perguntas complexas, reduzindo o tempo e o esforço necessários para pesquisar um tópico específico manualmente. Consequentemente, os modelos de linguagem podem acelerar a criação de diretrizes de prática clínica. Embora não haja dúvida de que o ChatGPT tem potencial para revolucionar a forma como os cuidados de saúde são prestados, é essencial observar que não deve ser usado como substituto de profissionais de saúde humanos. Em vez disso, o ChatGPT deve ser visto como uma ferramenta que pode ser usada para aumentar e apoiar o trabalho dos profissionais de saúde, ajudando-os a prestar melhores cuidados aos seus pacientes.

Management of symptoms recurrence after myotomy for achalasia. a practical approach / Manejo da recidiva de sintomas após miotomia para acalasia. uma abordagem prática

ABSTRACT BACKGROUND: Achalasia is an esophageal motility disorder, and myotomy is one of the most used treatment techniques. However, symptom persistence or recurrence occurs in 9 to 20% of cases. AIMS: This study aims to provide a practical approach for managing the recurrence or persistence of achalasia symptoms after myotomy. METHODS: A critical review was performed to gather evidence for a rational approach for managing the recurrence or persistence of achalasia symptoms after myotomy. RESULTS: To properly manage an achalasia patient with significant symptoms after myotomy, such as dysphagia, regurgitation, thoracic pain, and weight loss, it is necessary to classify symptoms, stratify severity, perform appropriate tests, and define a treatment strategy. A systematic differential diagnosis workup is essential to cover the main etiologies of symptoms recurrence or persistence after myotomy. Upper digestive endoscopy and dynamic digital radiography are the main tests that can be applied for investigation. The treatment options include endoscopic dilation, peroral endoscopic myotomy, redo surgery, and esophagectomy, and the decision should be based on the patient's individual characteristics. CONCLUSIONS: A good clinical evaluation and the use of proper tests jointly with a rational assessment, are essential for the management of symptoms recurrence or persistence after achalasia myotomy.

RESUMO RACIONAL: A acalasia é um distúrbio da motilidade esofágica e a miotomia é uma das técnicas de tratamento mais utilizadas. No entanto, a persistência ou recorrência dos sintomas ocorre em 9 a 20%. OBJETIVOS: Este estudo visa fornecer uma abordagem prática para o manejo da recorrência ou persistência dos sintomas de acalasia após miotomia. MÉTODOS: Foi realizada uma revisão crítica para reunir evidências para uma abordagem racional no manejo da recorrência ou persistência dos sintomas de acalasia após miotomia. RESULTADOS: Para o manejo adequado de um paciente com acalásia com sintomas significativos após miotomia, como disfagia, regurgitação, dor torácica e perda de peso, é necessário classificar os sintomas, estratificar a gravidade, realizar exames adequados e definir uma estratégia de tratamento. Uma investigação diagnóstica diferencial sistemática é essencial para cobrir as principais etiologias de recorrência ou persistência dos sintomas após a miotomia. A endoscopia digestiva alta e a radiografia digital dinâmica são os principais exames que podem ser aplicados para investigação. As opções de tratamento incluem dilatação endoscópica, POEM (miotomia endoscópica oral), remiotomia e esofagectomia, e a decisão deve ser baseada nas características individuais do paciente. CONCLUSÕES: Uma boa avaliação clínica e a utilização de exames adequados, juntamente com uma avaliação racional, são essenciais para o manejo da recorrência ou persistência dos sintomas após miotomia por acalasia.

Pode o Blue Laser Imaging colaborar no diagnóstico diferencial entre lesões neoplásicas e não neoplásicas colorretais? / Can Blue Laser Imaging collaborate in the differential diagnosis between neoplastic and non-neoplastic colorectal lesions?

Introdução: Imagem endoscópica aprimorada permite o diagnóstico diferencial das lesões colorretais em tempo real através do estudo da microvasculatura. Objetivo: Revisar o uso do Blue Laser Imaging (BLI) na análise do padrão dos capilares para o diagnóstico diferencial entre lesões neoplásicas e não neoplásicas. Métodos: Esta é revisão integrativa da literatura que colheu informações publicadas em plataformas virtuais em português e inglês. A busca para leitura e análise foi realizada nas plataformas SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed e Scopus. Os descritores retirados do DeCS/MESH foram: "Blue laser imaging. Endoscopia. Cromoendoscopia, Pólipos colorretais. Magnificação" e seus correspondentes em inglês "Blue laser imaging. Image-enhanced endoscopy. Chromoendoscopy. Colorectal polyps. Magnification" com busca AND ou OR, considerando o título e/ou resumo. Foram incluídos somente os que tivessem maior correlação ao tema, e neles foi baseada a revisão com leitura, na íntegra, dos textos. Resultados: Ao final resultaram 22 artigos que compuseram esta revisão. Conclusão: BLI associada à magnificação mostrou bons resultados no diagnóstico histológico preditivo em tempo real para as lesões de cólon e reto.

Introduction: Improved endoscopic imaging allows the differential diagnosis of colorectal lesions in real time through the study of the microvasculature. Objective: To review the use of Blue Laser Imaging (BLI) in analyzing the capillary patern for the differential diagnosis between neoplastic and nonneoplastic lesions. Methods: This is an integrative review of the literature that collected information published on virtual platforms in Portuguese and English. The search for reading and analysis was carried out on the SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed and Scopus platforms. The descriptors taken from DeCS/MESH were: "Blue laser imaging. Endoscopy. Chromoendoscopy, Colorectal polyps. Magnification" and its English counterparts "Blue laser imaging. Image-enhanced endoscopy. Chromoendoscopy. Colorectal polyps. Magnification" with AND or OR search, considering the title and/or abstract. Only those that had the greatest correlation to the topic were included, and the review was based on them, with reading, in full, of the texts. Results: In the end, 22 articles resulted that made up this review. Conclusion: BLI associated with magnification showed good results in real-time predictive histological diagnosis for colon and rectal lesions.

Há diferenças endoscópicas e histopatológicas entre lesões serrilhadas superficiais nas suas fases iniciais? / Are there endoscopic and histopathological differences between superficial serrated lesions in their initial phases?

Introdução: Lesões serrilhadas são consideradas precursoras dos adenocarcinomas colorretais. Estudá-las em suas fases iniciais é importante ao pensar na prevenção do câncer, quando, então, são lesões hiperplásicas, ou sésseis serrilhadas Objetivo: Realizar revisão integrativa da literatura para comparar as características endoscópicas e histopatológicas nas fases iniciais da doença, com a intenção de auxiliar no entendimento do câncer colorretal. Métodos: Revisão integrativa da literatura baseada em material de análise existente nas plataformas digitais SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed e Scopus. O início foi a busca com os seguintes descritores: "lesões sésseis serrilhadas, carcinoma colorretal, lesões superficiais", e seus equivalentes em inglês "serrated sessile lesions, colorectal carcinoma, superficial lesions" com busca AND ou OR, considerando o título e/ou resumo, e incluindo-se posteriormente somente aqueles com maior correlação para leitura dos textos completos. Resultados: Incluíram-se 39 artigos. Conclusão: A maioria das lesões serrilhadas superficialmente elevadas com mais de 5 mm e ressecadas por colonoscopias, são hiperplásicas. Elas ocorrem por todo o cólon e reto, enquanto as sésseis serrilhadas localizamse preferencialmente no cólon proximal. As hiperplásicas geralmente não apresentam displasias e as sésseis serrilhadas podem tê-las de forma intensa.

Introduction: Serrated lesions are considered precursors of colorectal adenocarcinomas. Studying them in their initial phases is important when thinking about cancer prevention, when they are hyperplastic lesions, or sessile serrated lesions. Objective: To carry out an integrative review of the literature to compare the endoscopic and histopathological characteristics in the initial phases of the disease, with the intention to help understand colorectal cancer. Methods: Integrative literature review based on existing analysis material on the digital platforms SciELO ­ Scientific Electronic Library Online, Google Scholar, Pubmed and Scopus. The beginning was the search with the following descriptors: "serrated sessile lesions, colorectal carcinoma, superficial lesions", with AND or OR search, considering the title and/or abstract , and subsequently including only those with the highest correlation for reading the full texts. Results: 39 articles were included. Conclusion: The majority of superficially elevated serrated lesions measuring more than 5 mm and resected by colonoscopies are hyperplastic. They occur throughout the colon and rectum, while the serrated sessiles are preferentially located in the proximal colon. Hyperplastic ones generally do not present dysplasias and sessile serrated ones can have them intensely.