Cáncer Gástrico Bifocal con Linfonodos Negativos en un Paciente con Cirrosis Hepática / Bifocal Gastric Cancer with Negative Lymph Nodes in a Hepatic Cirrhosis Patient

El cáncer gástrico (CG), es la primera causa de muerte por cáncer, en hombres, y la tercera en mujeres, en Chile. No obstante ello, el CG bifocal (CGB) es una situación poco frecuente. El objetivo de este manuscrito fue reportar un caso de CGB, con linfonodos negativos en un paciente con cirrosis hepática, que fue intervenido quirúrgicamente; y revisar la evidencia existente respecto de sus características morfológicas, terapéuticas y pronósticas. Caso clínico: Hombre de 74 años diabético, hipertenso, insuficiente cardíaco y cirrótico; portador de CGB (subcardial y antro-pilórico), diagnosticado por endoscopia y con confirmación histológica de ambas lesiones; operado en Clínica RedSalud Mayor Temuco en septiembre de 2023. En el intraoperatorio se verificó además la coexistencia de una lesión de aspecto metastásico en el segmento III del hígado, y adhesión de la región antro-pilórica a la vesícula biliar. Se realizó gastrectomía total, linfadenectomía D2, esófago-yeyuno anastomosis término-lateral, resección segmentaria hepática (segmento III) y colecistectomía. El paciente permaneció 6 días en la UCI debido a que desarrolló insuficiencia hepática (encefalopatía leve y ascitis). Se alimentó vía enteral por sonda naso-yeyunal. Posteriormente inició alimentación oral progresiva, la que fue bien tolerada. Completó 11 días de hospitalización en servicio médico-quirúrgico, donde mejoró actividad neurológica, hasta su alta domiciliaria. Actualmente, lleva dos meses desde su operación, se encuentra en buenas condiciones generales, y el Comité Oncológico decidió no dar quimioterapia adyuvante. Se presenta un caso inusual de CG de tipo bifocal, respecto de lo cual hay escasa información disponible. Se logró realizar cirugía con intención curativa en un paciente de alto riesgo, con un resultado exitoso.

SUMMARY: Gastric cancer (GC) is the first cause of death from cancer in men, and the third one in women, in Chile. However, a bifocal GC (BGC) is uncommon. The aim of this study was to report a case of CGB, with negative-lymph nodes in a patient with liver cirrhosis, who underwent surgery; and review the existing evidence regarding its morphological, therapeutic and prognostic characteristics. Clinical case: A 74-year-old male patient with a medical history of diabetes, hypertension, congestive heart failure, and cirrhosis underwent surgical intervention for GC located in subcardial and antro- pyloric regions. The diagnosis was established via endoscopy and confirmed histologically. Surgery was performed at the RedSalud Mayor Temuco Clinic in September 2023. During intraoperative assessment, the coexistence of a lesion with metastatic-like characteristics in segment III of the liver was also verified, along with adhesions between the antro-pyloric region and the gallbladder. Surgical approach encompassed total gastrectomy, D2 lymphadenectomy, esophago-jejunostomy, segmental hepatic resection, and cholecystectomy. Subsequently, the patient required a six-day stay in ICU due to the development of hepatic insufficiency, characterized by mild encephalopathy and ascites. Enteral nutrition was administered via a naso-jejunal tube, followed by a gradual transition to oral feeding, which was well-tolerated. The patient completed an 11-day hospitalization period in the medical-surgical ward, during which his neurological function improved significantly, resulting in his discharge. At present, 2 months post-surgery, the patient remains in satisfactory general health, and the Oncology Committee decided not to proceed with adjuvant chemotherapy. This case represents a rare instance of bifocal GC, for which there is limited available literature. Surgical intervention with curative intent was successfully carried out in a high-risk patient, yielding a positive outcome.

División ganglionar posquirúrgica y su efecto en el recuento ganglionar y la estadificación en pacientes con cáncer gástrico / Postoperative lymph node division and its effect on lymph node count and staging in patients with gastric cancer

Introducción. La gastrectomía y disección ganglionar es el estándar de manejo para los pacientes con cáncer gástrico. Factores como la identificación de ganglios por el patólogo, pueden tener un impacto negativo en la estadificación y el tratamiento. El objetivo de este estudio fue comparar el recuento ganglionar de un espécimen quirúrgico después de una gastrectomía completa (grupo A) y de un espécimen con un fraccionamiento por grupos ganglionares (grupo B). Métodos. Estudio de una base de datos retrospectiva de pacientes sometidos a gastrectomía D2 en el Servicio de Cirugía gastrointestinal de la Liga Contra el Cáncer seccional Risaralda, Pereira, Colombia. Se comparó el recuento ganglionar en especímenes quirúrgicos con y sin división ganglionar por regiones anatómicas previo a su envío a patología. Resultados. De los 94 pacientes intervenidos, 65 pertenecían al grupo A y 29 pacientes al grupo B. El promedio de ganglios fue de 24,4±8,6 y 32,4±14,4 respectivamente (p=0,004). El porcentaje de pacientes con más de 15 y de 25 ganglios fue menor en el grupo A que en el grupo B (27 vs 57, p=0,432 y 19 vs 24, p=0,014). El promedio de pacientes con una relación ganglionar menor 0,2 fue mayor en el grupo B (72,4 % vs 55,4 %, p=0,119). Conclusiones. Los resultados de nuestro estudio mostraron que una división por grupos ganglionares previo a la valoración del espécimen por el servicio de patología incrementa el recuento ganglionar y permite establecer de manera certera el pronóstico de los pacientes, teniendo un impacto positivo en su estadificación, para evitar el sobretratamiento

Introduction. A gastrectomy and lymph node dissection is the standard of management for patients with gastric cancer. Factors such as the identification of nodes by the pathologist can have a negative impact on staging and treatment. The objective of this study was to compare the lymph node count of a surgical specimen after a complete gastrectomy (group A) and of a specimen with lymph node by groups (group B). Methods. Study of a retrospective database of patients undergoing D2 gastrectomy in the Risaralda section of the Liga Contra el Cancer Gastrointestinal surgical service, Pereira, Colombia. The lymph node count was compared in surgical specimens with and without lymph node division by anatomical regions, prior to sending them to pathology. Results. Of the 94 patients who underwent surgery, 65 were from group A and 29 patients were from group B. The average number of nodes was 24.4±8.6 and 32.4±14.4, respectively (p=0.004). The percentage of patients with more than 15 and 25 nodes was lower in group A than in group B (27 vs 57, p=0.432 and 19 vs 24, p=0.014). The average number of patients with a nodal ratio less than 0.2 was higher in group B (72.4% vs 55.4%, p=0.119). Conclusions. The results of our study showed that a division by lymph node groups prior to the evaluation of the specimen by the pathology service increases the lymph node count and allows the prognosis of patients to be accurately established, having a positive impact on their staging, to avoid overtreatment.

Enfrentamiento ante filtraciones de la esófagoyeyuno anastomosis

La filtración de la esófagoyeyuno anastomosis (FEYA) es una de las complicaciones más graves tras una gastrectomía total, ya que se asocia a un aumento de la morbimortalidad quirúrgica. El manejo óptimo de la FEYA aún es controversial, existiendo cada vez más opciones mínimamente invasivas, especialmente endoscópicas. El objetivo de la presente revisión es comparar la evidencia científica publicada y actualizada referente al tratamiento médico, endoscópico y quirúrgico de una FEYA y sus resultados a corto y largo plazo además de proponer un algoritmo de manejo que permita orientar la práctica clínica. Finalmente se presenta la experiencia nacional en relación a los avances presentados en los últimos años en torno manejo clínico de FEYA.

Leakage of the esophagojejunostomy (LEY) is one of the most serious complications after total gastrectomy, as it is associated with increased surgical morbidity and mortality. The optimal management of LEY is still controversial, with increasing minimally invasive options, especially endoscopic ones. The aim of this review is to compare the published and updated scientific evidence regarding the medical, endoscopic and surgical treatment of LEY and its short and long-term results, in addition to propose a management algorithm that allows guiding clinical practice. Finally, the national experience is presented in relation to the advances presented in recent years regarding clinical management of LEY.

Detalles técnicos para prevenir la Enfermedad por Reflujo Gastroesofágico durante la Gastrectomía en manga

La gastrectomía en manga es el procedimiento bariátrico más frecuentemente efectuado en la actualidad. La complicación alejada más frecuente es el aumento de la tasa de enfermedad por reflujo gastro-esofágico. Se han descrito las razones anatómicas y fisiopatológicas de su origen. En este artículo se describen los puntos claves de la técnica quirúrgica de la manga gástrica para su prevención como también otros procedimientos que han sugerido tanto para su prevención como tratamiento.

Sleeve gastrectomy is the most frequently performed bariatric procedure today. The most common distant complication is the increased rate of gastroesophageal reflux disease. The anatomical and pathophysiological reasons for its origin have been described. This article describes the key points of the gastric sleeve surgical technique for its prevention as well as other procedures that have been suggested both for its prevention and treatment.

Morbilidad y mortalidad en pacientes llevados a gastrectomía por cáncer gástrico / Morbidity and mortality in patients undergoing gastrectomy for gastric cancer

Introducción. El cáncer gástrico es la cuarta causa de muerte por cáncer a nivel mundial, con más de un millón de casos diagnosticados cada año. La cirugía con intención curativa sigue siendo el pilar del manejo para los pacientes resecables. La identificación de pacientes con mayor riesgo de morbimortalidad es importante para el proceso de toma de decisiones, sin existir hasta el momento una herramienta ideal. La revisión y el análisis de la experiencia de un centro oncológico de referencia pueden generar información útil. Métodos. Estudio observacional de cohorte histórica, en el que se incluyeron los pacientes llevados a gastrectomía por adenocarcinoma gástrico en el Instituto Nacional de Cancerología, Bogotá, D.C., Colombia, entre el 1° de enero del 2010 y el 31 de diciembre del 2017. Resultados. Se evaluaron 332 pacientes, de los cuales el 57,2 % eran hombres con edad promedio de 61 años. La mortalidad en esta serie fue del 4,5 % y la morbilidad de 34,9 %. El factor asociado con mayor riesgo de muerte fue la edad, con un HR de 1,05 (p=0,021). Se encontró un mayor riesgo en el grupo de pacientes con ASA mayor a II (p=0,009).El 17,4 % presentaron complicaciones mayores a IIIA de la clasificación de Clavien-Dindo. Conclusiones. En el presente trabajo las cifras de morbilidad y mortalidad son similares a las reportadas en la literatura. Solo la edad y la clasificación de ASA mostraron asociación con valor estadístico significativo para complicaciones postoperatorias

Introduction. Gastric cancer is the fourth leading cause of cancer death worldwide with more than one million cases diagnosed each year. Surgery with curative intent remains the mainstay of management for resectable patients. Identify patients at increased risk of morbidity and mortality is important for the decision making process, with no ideal tool available yet. Review and analysis of the experience of a referral cancer center may generate useful information. Methods. Historical cohort observational study. Patients undergoing gastrectomy for gastric adenocarcinoma at the National Cancer Institute in Bogotá, Colombia, between January 1, 2010 and December 31, 2017 were included. Results. We included 332 patients of which 57.2% were men with mean age of 61 years. Mortality in this series was 4.5% and morbidity was 34.9%. The factor associated with higher risk of death was age with a HR of 1.05 statistically significant value (p=0.021). A higher risk was found in the group of patients with ASA greater than II (p=0.009). The 17.4% presented complications greater than IIIA of the Clavien Dindo classification. Conclusions. In this study morbidity and mortality seem similar to those reported in the literature. Only age and ASA score showed an association with significant statistical value for postoperative complications

Proteína C reactiva y su progresión en el tiempo para la detección de las fugas anastomóticas / C-reactive protein and its progression over time for the detection of anastomotic leaks

Introducción. Las fugas anastomóticas son una complicación común y crítica en cirugía gastrointestinal, por lo que su identificación y tratamiento temprano son necesarios para evitar resultados adversos. El uso convencional con un valor límite de la proteína C reactiva ha demostrado una utilidad limitada. El objetivo de este estudio fue determinar la utilidad de la medición seriada de la proteína C reactiva en la detección de fugas anastomóticas. Métodos. Revisión prospectiva de base de datos retrospectiva de pacientes sometidos a cirugía abdominal mayor con al menos una anastomosis intestinal. Se midió la proteína C reactiva al tercer y quinto día posoperatorio. Las complicaciones se categorizaron según la clasificación de Clavien-Dindo. La precisión diagnóstica fue evaluada por el área bajo la curva. Resultados. Se incluyeron 157 pacientes, el 52 % mujeres. La edad promedio fue de 63,7 años. El mayor número de cirugías correspondió a gastrectomía (36,3 %), resección anterior de recto (15,3 %) y hemicolectomía derecha (13,4 %). El 25,5 % tuvieron alguna complicación postoperatoria y el 32,5 % (n=13) presentaron fuga en la anastomosis. El aumento de la proteína C reactiva tuvo un área bajo la curva de 0,918 con un punto de corte de aumento en 1,3 mg/L, sensibilidad de 92,3 % (IC95% 78 ­ 100) y una especificidad de 92,4 % (IC95% 88 ­ 96). Conclusiones. El aumento de 1,3 mg/L en la proteína C reactiva entre el día de la cirugía y el quinto día fue un predictor preciso de fugas anastomóticas en pacientes con cirugía abdominal mayor

Introduction. Anastomotic leaks are a common and critical complication in gastrointestinal surgery. Their identification and early treatment are necessary to avoid adverse results, and conventional use with a cutoff value of C-reactive protein has shown limited utility. The objective of this study was to determine the usefulness of serial measurement of C-reactive protein in the detection of anastomotic leaks. Methods. Prospective review of a retrospective database of patients undergoing major abdominal surgery with at least one intestinal anastomosis. C-reactive protein was measured on the third and fifth postoperative days. Complications were classified according to the Clavien-Dindo classification. Diagnostic accuracy was evaluated by the area under the curve.Results. 157 patients were included, 52% were females. The average age was 63.7 years. The largest number of surgeries corresponded to gastrectomies (36.3%), anterior resection of the rectum (15.3%) and right hemicolectomies (13.4%). 25.5% had some postoperative complication and 32.5% (n=13) had anastomosis leaks. The increase in C-reactive protein had an area under the curve of 0.918 with an increase cut-off point of 1.3 mg/L, sensitivity of 92.3% (95% CI 78-100) and specificity of 92.4%. (95% CI 88-96). Conclusions. The 1.3 mg/L increase in C-reactive protein between the day of surgery and the fifth day was an accurate predictor of anastomotic leaks in patients with major abdominal surgery

Palliative gastrectomy versus gastric bypass for symptomatic clinical stage iv gastric cancer: a propensity score matching analysis / Gastrectomia paliativa versus derivação gástrica no câncer gástrico sintomático estadio clínico iv: uma análise empregando escore de propensão

ABSTRACT BACKGROUND: Patients with clinical stage IV gastric cancer may require palliative procedures to manage complications such as obstruction. However, there is no consensus on whether performing palliative gastrectomy compared to gastric bypass brings benefits in terms of survival. AIMS: To compare the overall survival of patients with distal obstructive gastric cancer undergoing palliative surgical treatment, using propensity score matching analysis. METHODS: Patients who underwent palliative bypass surgery (gastrojejunostomy or partitioning) and resection between the years 2009 and 2023 were retrospectively selected. Initial and postoperative clinicopathological variables were collected. RESULTS: 150 patients were initially included. The derived group (n=91) presented more locally invasive disease (p<0.01), greater degree of obstruction (p<0.01), and worse clinical status (p<0.01), while the resected ones (n= 59) presented more distant metastasis (p<0.01). After matching, 35 patients remained in each group. There was no difference in the incidence of postoperative complications, but the derived group had higher 90-day mortality (p<0.01). Overall survival was 16.9 and 4.5 months for the resected and derived groups, respectively (p<0.01). After multivariate analysis, hypoalbuminemia (hazard ratio — HR=2.02, 95% confidence interval — 95%CI 1.17-3.48; p=0.01), absence of adjuvant chemotherapy (HR=5.97; 95%CI 3.03-11.7; p<0.01), and gastric bypass (HR=3,28; 95%CI 1.8-5.95; p<0.01) were associated with worse survival. CONCLUSIONS: Palliative gastrectomy was associated with greater survival and lower postoperative morbidity compared to gastric bypass. This may be due to better local control of the disease, with lower risks of complications and better effectiveness of chemotherapy.

RESUMO RACIONAL: Pacientes com câncer gástrico estádio clínico IV podem necessitar de procedimentos paliativos para o manejo de complicações como a obstrução. Contudo, não há consenso se a realização de gastrectomia paliativa em comparação à derivação gástrica traz benefícios em termos de sobrevida. OBJETIVOS: Comparar a sobrevida global de pacientes com câncer gástrico obstrutivo distal submetidos a tratamento cirúrgico paliativo, empregando a análise com pareamento por escore de propensão. MÉTODOS: Foram selecionados retrospectivamente pacientes submetidos à cirurgia paliativa de derivação (gastrojejunostomia ou partição) e ressecção entre os anos de 2009 e 2023. Variáveis clínico-patológicas iniciais e pós-operatórias foram coletadas. RESULTADOS: Foram inicialmente incluídos 150 pacientes. O grupo derivado (n=91) apresentou mais doença localmente invasiva (p<0,01), maior garu de obstrução (p<0,01) e pior status clínico (p<0,01), enquanto os gastrectomizados (n=59) mais metástase à distância (p<0,01). Após o pareamento, restaram 35 pacientes em cada grupo. Não houve diferença na incidência de complicações pós-operatórias, mas o grupo derivado apresentou maior mortalidade em 90 dias (p<0,01). A sobrevida global foi de 16,9 e 4,5 meses para o grupo ressecado e derivado, respectivamente (p<0,01). Após análise multivariada, hipoalbuminemia (HR=2,02; IC95% 1,17-3,48; p=0,01), ausência de quimioterapia adjuvante (HR=5,97; IC95% 3,03-11,7; p<0,01) e bypass gástrico (HR =3,28; IC95% 1,8-5,95; p<0,01) foram associados a pior sobrevida. CONCLUSÕES: A gastrectomia paliativa esteve associada a maior sobrevida e menor morbidade pós-operatória quando comparada à derivação gástrica. Isto pode se dever a um melhor controle local da doença, com menores riscos de complicações e melhor efetividade da quimioterapia.

Tumor markers expression levels in gastric cancer patient's peripheral blood by rt-pcr assessment / Avaliação por rt-pcr de expressão de marcadores tumorais em sangue periférico de pacientes com câncer gástrico

ABSTRACT BACKGROUND: Hematological recurrence is the second most frequent cause of failure in the treatment of gastric cancer. The detection of circulating tumor markers in peripheral blood by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) method may be a useful tool to predict recurrence and determine the patient's prognosis. However, no consensus has been reached regarding the association between the tumor markers level in peripheral blood and its impact on patient survival. AIMS: To evaluate the expression of the circulating tumor markers CK20 and MUC1 in peripheral blood samples from patients with gastric cancer by qRT-PCR, and to verify the association of their expression levels with clinicopathological characteristics and survival. METHODS: A total of 31 patients with gastric adenocarcinoma were prospectively included in this study. CK20 and MUC1 expression levels were analyzed from peripheral blood by the qRT-PCR technique. RESULTS: There was no statistically significant (p>0.05) association between CK20 expression levels and clinical, pathological, and surgical features. Higher MUC1 expression levels were associated with female patients (p=0.01). There was a correlation between both gene levels (R=0.81, p<0.001), and CK20 level and tumor size (R=0.39, p=0.034). CONCLUSIONS: CK20 and MUC1 expression levels could be assessed by qRT-PCR from total peripheral blood samples of patients with gastric cancer. CK20 levels were correlated to MUC1 levels as well as to tumor size. There was no difference in disease-free survival and overall survival regarding both genetic markers expression in this series.

RESUMO RACIONAL: A recorrência hematológica é a segunda causa mais frequente de falha no tratamento do câncer gástrico. A detecção de marcadores tumorais circulantes no sangue periférico, pelo método de reação em cadeia da polimerase de transcrição reversa quantitativa (qRT-PCR) pode ser uma ferramenta útil para prever a recorrência e determinar o prognóstico do paciente. No entanto, ainda não foi alcançado consenso em relação à associação entre o nível de marcadores tumorais circulantes no sangue periférico e seu impacto na sobrevida do paciente. OBJETIVOS: Avaliar a expressão de CK20 e MUC1 em amostras de sangue periférico de pacientes com câncer gástrico por meio de qRT-PCR e verificar a associação dos níveis de expressão com características clinicopatológicas e sobrevida. MÉTODOS: Trinta e um pacientes com adenocarcinoma gástrico foram incluídos, prospectivamente. Os níveis de expressão de CK20 e MUC1 foram analisados a partir de sangue periférico por meio de qRT-PCR. RESULTADOS: Não houve associação estatisticamente significativa (p>0,05) entre os níveis de expressão de CK20 com características clínicas, patológicas e cirúrgicas. Níveis mais elevados de expressão de MUC1 estavam associados a pacientes do sexo feminino (p=0,01). Houve correlação entre os níveis de ambos os genes (R=0,81, p<0,001), nível de CK20 e tamanho do tumor (R=0,39, p=0,034). CONCLUSÕES: Os níveis de CK20 e MUC1 podem ser avaliados por qRT-PCR a partir de amostras de sangue periférico total de pacientes com câncer gástrico, os níveis de CK20 estavam correlacionados com os de MUC1, assim como tamanho do tumor. Não houve diferença de sobrevida global ou livre de doença em relação à expressão de ambos marcadores genéticos nesta série.

Brazilian multi-society position statement on emerging bariatric and metabolic surgical procedures / Posição das sociedades brasileiras sobre procedimentos cirúrgicos bariátricos e metabólicos emergentes

ABSTRACT This Brazilian multi-society position statement on emerging bariatric and metabolic surgical procedures was issued by the Brazilian Society of Bariatric and Metabolic Surgery (SBCBM), the Brazilian College of Digestive Surgery (CBCD), and the Brazilian College of Surgeons (CBC). This document is the result of a Brazilian Emerging Surgeries Forum aimed at evaluating the results of surgeries that are not yet listed in the Federal Council of Medicine (CFM), the regulatory agency that oversees and regulates medical practice in Brazil. The Forum integrated more than 400 specialists and academics with extensive knowledge about bariatric and metabolic surgery, representing the three surgical societies: SBCBM, CBC, and CBCD. International speakers participated online and presented their experiences with the techniques under discussion, emphasizing the regulatory policies in their countries. The indications for surgery and the subsequent procedures were carefully reviewed, including one anastomosis gastric bypass (OAGB), single anastomosis duodeno-ileal with sleeve gastrectomy (SADI-S or OADS), sleeve gastrectomy with transit bipartition (SGTB), and sleeve gastrectomy with ileal interposition (SGII). The recommendations of this document are based on an extensive literature review and discussions among bariatric surgery specialists from the three surgical societies. We concluded that patients with a body mass index over 30 kg/m2 may be candidates for metabolic surgery in the presence of comorbidities (arterial hypertension and type 2 diabetes) with no response to clinical treatment of obesity or in the control of other associated diseases. Regarding the surgical procedures, we concluded that OAGB, OADS, and SGTB are associated with low morbidity rates, satisfactory weight loss, and resolution of obesity-related comorbidities such as diabetes and arterial hypertension. SGII was considered a good and viable promising surgical alternative technique. The recommendations of this statement aim to synchronize our societies with the sentiments and understandings of most of our members and also serve as a guide for future decisions regarding bariatric surgical procedures in our country and worldwide.

RESUMO Esta declaração multissocietária de posicionamento sobre novos procedimentos cirúrgicos bariátricos e metabólicos emergentes foi emitida pela Sociedade Brasileira de Cirurgia Bariátrica e Metabólica (SBCBM), pelo Colégio Brasileiro de Cirurgia Digestiva (CBCD) e pelo Colégio Brasileiro de Cirurgiões (CBC). Este documento é resultado do Fórum Brasileiro de Cirurgias Emergentes, realizado com o objetivo de avaliar os resultados de cirurgias ainda não listadas no Conselho Federal de Medicina (CFM), órgão regulador que fiscaliza e regulamenta a prática médica no Brasil. O Fórum integrou mais de 400 especialistas e acadêmicos com amplo conhecimento sobre cirurgia bariátrica e metabólica, representando as três sociedades cirúrgicas: SBCBM, CBC e CBCD. Palestrantes internacionais participaram online e apresentaram suas experiências com as técnicas em discussão, enfatizando as políticas regulatórias de seus países. As indicações para cirurgia e os procedimentos subsequentes foram cuidadosamente revisados, incluindo bypass gástrico de uma anastomose (OAGB), anastomose duodeno-Ileal única com gastrectomia vertical (OADS ou SADI-S), gastrectomia vertical com bipartição de trânsito (SGTB) e gastrectomia vertical com interposição ileal (SGII). As recomendações deste documento são baseadas em extensa revisão da literatura e discussões entre especialistas em cirurgia bariátrica das três sociedades cirúrgicas. Concluímos que pacientes com índice de massa corpórea (IMC) acima de 30 kg/m2 podem ser candidatos à cirurgia metabólica na presença de comorbidades (hipertensão arterial e diabetes tipo 2), sem resposta ao tratamento clínico da obesidade ou no controle de outras doenças associadas. Em relação aos procedimentos cirúrgicos, concluímos que OAGB, OADS e SGTB estão associados a baixas taxas de morbidade e com perda de peso satisfatória e resolução de comorbidades relacionadas à obesidade, como diabetes e hipertensão arterial. A SGII foi considerada uma boa e viável técnica cirúrgica, sendo considerada uma alternativa promissora. As recomendações desta declaração visam sincronizar nossas sociedades com os sentimentos e entendimentos da maioria de nossos membros e também servir como um guia para futuras decisões sobre procedimentos cirúrgicos bariátricos em nosso país e no mundo.

Endoscopic ablation combined with fundoplication plus acid suppression-duodenal diversion procedure for long segment barrett´s esophagus: early and long-term outcome / Ablação endoscópica combinada com fundoplicatura associada a diversão duodenal no esôfago de barrett longo: resultados precoce e de longo prazo

ABSTRACT BACKGROUND: The addition of endoscopic ablative therapy plus proton pump inhibitors or fundoplication is postulated for the treatment of patients with long-segment Barrett´s esophagus (LSBE); however, it does not avoid acid and bile reflux in these patients. Fundoplication with distal gastrectomy and Roux-en-Y gastrojejunostomy is proposed as an acid suppression-duodenal diversion procedure demonstrating excellent results at long-term follow-up. There are no reports on therapeutic strategy with this combination. AIMS: To determine the early and long-term results observed in LSBE patients with or without low-grade dysplasia who underwent the acid suppression-duodenal diversion procedure combined with endoscopic therapy. METHODS: Prospective study including patients with endoscopic LSBE using the Prague classification for circumferential and maximal lengths and confirmed by histological study. Patients were submitted to argon plasma coagulation (21) or radiofrequency ablation (31). After receiving treatment, they were monitored at early and late follow-up (5-12 years) with endoscopic and histologic evaluation. RESULTS: Few complications (ulcers or strictures) were observed after the procedure. Re-treatment was required in both groups of patients. The reduction in length of metaplastic epithelium was significantly better after radiofrequency ablation compared to argon plasma coagulation (10.95 vs 21.15 mms for circumferential length; and 30.96 vs 44.41 mms for maximal length). Intestinal metaplasia disappeared in a high percentage of patients, and histological long-term results were quite similar in both groups. CONCLUSIONS: Endoscopic procedures combined with fundoplication plus acid suppression with duodenal diversion technique to eliminate metaplastic epithelium of distal esophagus could be considered a good alternative option for LSBE treatment.

RESUMO RACIONAL: A adição de terapia ablativa endoscópica associado a inibidores da bomba de prótons ou fundoplicatura tem sido postulada para o tratamento de pacientes com esôfago de Barrett de segmento longo (EBSL), no entanto, essa conduta não evita o refluxo ácido/biliar nesses pacientes. A fundoplicatura com gastrectomia distal e gastrojejunostomia em Y de Roux (FGD-Y) foi proposta como procedimento de supressão de ácido, demonstrando excelentes resultados no seguimento a longo prazo. Não há relatos na literature com a combinação dessa estratégia terapêutica. OBJETIVOS: Determinar os resultados precoces e a longo prazo observados em pacientes com EBSL com ou sem dysplasia de baixo grau, submetidos a FGD-Y, combinado com terapia endoscópica. MÉTODOS: Estudo prospectivo incluindo pacientes com EBSL, empregando a classificação de Praga, sendo o comprimento circunferencial (C) e máximo (M) e confirmado por estudo histológico. Os pacientes foram submetidos à coagulação com plasma de argônio (CPA, 21 pacientes) ou ablação por radiofrequência (ARF, 31 pacientes). Após o tratamento, eles foram seguidos precoce e tardiamente (5-12 anos), mediante avaliação endoscópica e histológica. RESULTADOS: Foram observadas poucas complicações após o procedimento (úlcera ou estenose). Re-tratamento foi necessário em ambos os grupos de pacientes. A redução do comprimento do epitélio metaplásico foi significativamente melhor após ARF em comparação com CPA (10,95 versus 21,15 mm para C e 30,96 versus 44,41 mm para M). A metaplasia intestinal desapareceu em elevada porcentagem de pacientes, e os resultados histológicos a longo prazo foram bastante semelhantes em ambos os grupos. CONCLUSÕES: Procedimentos endoscópicos combinados com fundoplicatura e gastrectomia distal e gastrojejunostomia em Y de Roux, para eliminar o epitélio metaplásico do esôfago distal podem ser considerados uma boa opção alternativa para o tratamento da EBSL.

Development of adenocarcinoma after radiofrequency ablation of barrett's esophagus associated to fundoplication and suppression-duodenal diversion procedure: a lesson to be learned / Adenocarcinoma em esôfago de barrett após ablação por radiofrequência associada a fundoplicatura e diversão duodenal

ABSTRACT Despite endoscopic eradication therapy being an effective and durable treatment for Barrett's esophagus-related neoplasia, even after achieving initial successful eradication, these patients remain at risk of recurrence and require ongoing routine examinations. Failure of radiofrequency ablation and argon plasma coagulation is reported in 10-20% of cases.

RESUMO Apesar de a terapia de erradicação endoscópica ser um tratamento eficaz e durável para a neoplasia relacionada ao esôfago de Barrett (BE), mesmo após a erradicação inicial bem-sucedida, esses pacientes permanecem em risco de recorrência e requerem exames de rotina contínuos. A falha na ablação por radiofrequência e na coagulação com plasma de argônio é relatada em 10-20% dos casos.

Laparoscopic sleeve gastrectomy versus laparoscopic roux-en-y gastric bypass for weight loss in obese patients: which is more effective? a systematic review and meta-analysis / Gastrectomia vertical laparoscópica versus by-pass gástrico na perda de peso em pacientes obesos: qual é mais efetiva? uma revisão sistemática

ABSTRACT BACKGROUND: Bariatric surgery is the most effective option to reduce weight in morbid obesity patients. The techniques most employed are the restrictive surgery laparoscopic sleeve gastrectomy (LSG), surgical procedures of intestinal malabsorption, and both types (restrictive and intestinal malabsorption) such as the Roux-en-Y laparoscopic gastric bypass (RYLGB). AIMS: To determine if LSG is more effective than RYLGB for weight loss. METHODS: A systematic review and meta-analysis was carried out, including five clinical trials and sixteen cohorts comparing LSG versus RYLGB in weight loss and secondary outcomes: resolution of comorbidities, postoperative complications, operative time, hospital stay, and improvement in quality of life. RESULTS: Excess weight loss was 10.2% (mean difference [MD] 10.2; 95%CI -10.14; -9.90) higher in patients undergoing LSG than in patients submitted to RYLGB. Diabetes mellitus type 2 was resolved in 17% (relative risk [RR] 0.83; 95%CI 0.77-0.90) of cases, more significantly after LSG, arterial hypertension in 23% (RR 0.77; 95%CI 0.69-0.84), and dyslipidemia in 17% (RR 0.83; 95%CI 0.77-0.90). Postoperative complications were 73% higher in patients undergoing RYLGB (MD 0.73; 95%CI 0.63-0.83). The operative time was 35.76 minutes shorter in the LSG (MD -35.76; 95%CI -37.28; -34.24). Finally, the quality of life improved more in patients operated by LSG (MD 0.37; 95%CI -0.48; -0.26). CONCLUSIONS: The study demonstrated that LSG could be more effective than RYLGB in reducing the percentage of excess weight, comorbidities, postoperative complications, operative time, hospital stay, and in improving quality of life.

RESUMO RACIONAL: A cirurgia bariátrica é a opção mais eficaz para reduzir o peso em pacientes com obesidade mórbida. Três técnicas são mais empregadas: gastrectomia vertical laparoscópica (LSG), procedimentos cirúrgicos de má absorção intestinal e ambos os tipos, má absorção intestinal e restritiva, e bypass laparoscópico em Y-Roux (RYLGB). OBJETIVOS: Determinar a eficácia da LSG versus RYLGB na perda de peso. MÉTODOS: Uma revisão sistemática e meta-análise foi realizada incluindo cinco ensaios clínicos e dezesseis coortes comparando LSG versus RYLGB na perda de peso e resultados secundários, resolução de comorbidades, complicações pós-operatórias, tempo operatório, permanência hospitalar e melhora da qualidade de vida. RESULTADOS: A perda de excesso de peso foi 10,2% (diferença média (MD) 10,2; IC95% -10,14; -9,90) maior em pacientes submetidos a LSG do que em pacientes operados com RYLGB. Diabetes mellitus tipo 2 foi resolvido em 17% (risco relativo (RR) 0,83; IC95% 0,77-0,90), hipertensão arterial em 23% (RR 0,77; IC95% 0,69-0,84), dislipidemia em 17% (RR 0,83; IC95% 0,77-0,90), mais significativos após LSG. As complicações pós-operatórias foram 73% maiores em pacientes submetidos a RYLGB (MD 0,73; IC95% 0,63-0,83). O tempo operatório foi 35,76 minutos menor na LSG (MD -35,76; IC95% -37,28; -34,24). Finalmente, a qualidade de vida melhorou mais no LSG (MD 0,37; IC95% -0,48; -0,26). CONCLUSÕES: LSG é muito eficaz na redução do excesso de peso, comorbidades, complicações pós-operatórias, tempo e melhora na qualidade de vida.

Cáncer gástrico post gastrectomía vertical: a propósito de un caso

Introducción: La obesidad y el índice de masa corporal (IMC) actúan como factores de riesgo para diversas neoplasias, sin una clara relación con el cáncer gástrico no cardial. La cirugía bariátrica es el manejo más efectivo contra la obesidad. La incidencia de cáncer gástrico posterior a la gastrectomía vertical es aún incierta. El primer caso de cáncer gástrico, 4 años posterior a una gastrectomía vertical, se publicó en 2014, y hasta la fecha se han descrito 11 casos en la literatura. Caso Clínico: Masculino de 52 años, con antecedente de gastrectomía vertical, presenta cuadro clínico, endoscópico e histopatológico compatible con adenocarcinoma de cuerpo gástrico 5 años posterior a cirugía bariátrica. Recibe tratamiento neoadyuvante con quimioterapia esquema FLOT 6 ciclos, luego gastrectomía total oncológica laparoscópica con disección ganglionar D2 y adyuvancia con esquema FOLFOX 6 ciclos. Estudio histopatológico resulta adenocarcinoma pobremente diferenciado con 90% de regresión tumoral, sin metástasis ganglionar en lo extraído (pT1bN0M0). Seguimiento por 6 meses sin signos clínicos e imagenológicos de recidiva tumoral. Discusión: Existiría una relación directa entre el IMC y cáncer de unión gastroesofágica, la que no ha sido demostrada para cáncer gástrico no cardial. El estudio con endoscopía digestiva alta previo a cirugía bariátrica no está estandarizado, sin embargo, es recomendable realizarlo. La cirugía bariátrica podría disminuir el riesgo de ciertas neoplasias, mientras que la incidencia de cáncer gástrico posterior a dicha cirugía aún no está bien definida. Es recomendable realizar seguimiento endoscópico a los pacientes posoperados de gastrectomía vertical, más aún en sintomáticos.

Introduction: Obesity and body mass index (BMI) are risk factors for different types of cancer, yet there is no clear association to non-cardia gastric cancer. Bariatric surgery is the most effective treatment for obesity. Incidence of gastric cancer after bariatric surgery remains unclear. The first case report of gastric cancer 4 years following a vertical sleeve gastrectomy was reported in 2014 and up until now, only 11 cases have been reported. Case report: 52-year-old man, who had undergone a sleeve gastrectomy 5 years ago, presented clinical, endoscopic, and histological features, compatible with a gastric body adenocarcinoma. He received neoadjuvant chemotherapy of 6 cycles of FLOT, an oncological laparoscopic total gastrectomy with D2 lymph node dissection and adjuvant chemotherapy with 6 cycles of FOLFOX. Biopsy reported a poorly differentiated adenocarcinoma with a 90% of tumor regression, with no signs of ganglion metastases (pT1bN0M0). 6-month follow-up showed no clinical or imaging signs of relapse. Discussion: There is a direct association between higher BMI and gastroesophageal junction cancer, but no clear evidence of this association with non-cardia gastric cancer. The preoperative evaluation with an upper endoscopy before bariatric surgery is not standardized, yet it is possible to recommend it. Bariatric surgery could lower the risk of certain cancers, yet the incidence of gastric cancer after this procedure is not yet defined. Endoscopic follow-up is recommended to all postoperative patients, especially if they become symptomatic.

Morbimortalidad de pacientes sometidos a cirugía bariátrica en el Hospital Nacional de Itauguá: experiencia años 2017 a 2021 / Morbidity and mortality of patients undergoing bariatric surgery at the Hospital Nacional Itauguá: experience years 2017 to 2021

Introducción: la prevalencia de sobrepeso y obesidad en Paraguay es del 58 % en la población adulta, y 34,5 % en niños y adolescentes. Para enfrentar esta situación existen varios tratamientos, siendo el quirúrgico el medio terapéutico actual que permite obtener la mayor pérdida de peso y por tiempo más prolongado. Objetivo: describir la morbimortalidad de las cirugías bariátricas en el Hospital Nacional de Itauguá en el periodo comprendido entre enero 2017 y setiembre 2021. Metodología: estudio descriptivo, observacional, retrospectivo de corte transversal, con un muestreo no probabilístico de casos consecutivos de todos los pacientes con diagnóstico de obesidad que recibieron tratamiento quirúrgico entre enero 2017 a setiembre del 2021. Se recabaron 126 historias clínicas, 121 de ellos cumplieron los criterios de inclusión. Resultados: de 121 pacientes, 82 % eran mujeres y 18 % hombres, con una edad media de 37 años. Se realizó una gastrectomía vertical en 68 % y by-pass gástrico en 21 %, con una estadía hospitalaria promedio de 61 h. La fístula fue la complicación postoperatoria más frecuente (7 %) seguida de la dehiscencia de anastomosis (2 %). La morbilidad de la cirugía bariátrica fue 11 %, con una mortalidad del 1 %. Conclusión: la morbilidad de la cirugía bariátrica en el Hospital Nacional de Itauguá es baja, con una mortalidad aceptable. La técnica más realizada es la gastrectomía vertical y la fístula es la complicación más común.

Introduction: the prevalence of overweight and obesity in Paraguay is 58 % in the adult population, and 34.5 % in children and adolescents. There are several treatments to deal with these conditions, with surgery being the current therapeutic option that allows for the greatest weight loss and for the longest time. Objective: to describe the morbidity and mortality of bariatric procedures at the Hospital Nacional, Itauguá from January 2017 to September 2021. Metodology: descriptive, observational, retrospective cross-sectional study, with a non- probabilistic sampling of consecutive cases of all patients diagnosed with obesity who received surgical treatment between January 2017 and September, 2021. 126 medical records were collected, 121 of them met the inclusion criteria. Results: of 121 patients, 82 % were women and 18 % men, with a mean age of 37 years. Vertical gastrectomy was performed in 68 % and gastric bypass in 21 %, with an average hospital stay of 61 hours. Fistula was the most frequent postoperative complication (7 %) followed by anastomosis dehiscence (2 %). The morbidity of bariatric surgery was 11 %, with a mortality of 1 %. Conclusion: the morbidity of bariatric surgery at the Hospital Nacional, Itauguá is low, with an acceptable mortality rate. The most common technique is sleeve gastrectomy and fistula is the most common complication.

Colangiopancreatografía retrógrada endoscópica asistida por enteroscopia de doble balón en un paciente con gastrectomía total y reconstrucción en Y-de-Roux: reporte de caso / Double-balloon enteroscopy-assisted endoscopic retrograde cholangiopancreatography in a patient with total gastrectomy and roux-en-y reconstruction: A case report

Resumen La colangiopancreatografía retrógrada endoscópica (CPRE) es un procedimiento útil en el manejo de enfermedades biliopancreáticas. Los pacientes con alteración anatómica del tracto gastrointestinal representan un desafío técnico por múltiples razones. Con técnicas como la enteroscopia de doble balón (EDB) es posible realizar una CPRE en estos pacientes. El caso que se presenta es el primero de este tipo publicado en Colombia sobre una paciente con gastrectomía total con reconstrucción en Y-de-Roux y coledocolitiasis.

Abstract Endoscopic retrograde cholangiopancreatography (ERCP) is a valuable procedure in managing biliopancreatic diseases. Patients with anatomical alteration of the gastrointestinal tract represent a technical challenge for multiple reasons. With techniques such as double-balloon enteroscopy (DBE), it is possible to perform ERCP in these patients. The case was first published in Colombia on a female patient with total gastrectomy with Roux-en-Y reconstruction and choledocholithiasis.

Calidad de vida posterior a gastrectomía total laparoscópica versus abierta en cáncer gástrico / Quality of life after -laparoscopic versus open total gastrectomy in gastric cancer

Resumen Introducción: En los últimos años, la gastrectomía laparoscópica ha aparecido como una técnica quirúrgica con resultados oncológicos comparables a la técnica abierta, pero existe poca evidencia en cuanto a la calidad de vida posoperatoria de estos pacientes. Objetivo: Evaluar la calidad de vida posoperatoria de pacientes sometidos a gastrectomía total laparoscópica (GTL) en comparación a gastrectomia total abierta (GTA) en cáncer gástrico. Materiales y Método: Estudio retrospectivo, observacional en Hospital Militar de Santiago, entre enero de 2015 y junio de 2020. Se les aplicó 2 encuestas validadas para Chile: EORTC QLQ-30 y EORTC QLQ-OG25. Resultados: Se obtuvieron 60 pacientes; 30 sometidos a GTL y 30 a GTA. Promedio edad fue 66,3 ± 11 años para GTL y 68,2 ± 11 años en GTA (p = 0,5). Se obtuvo un score en GTL versus GTA: global 83,3 y 80,2 (p = 0,6), sintomático 17,1 y 25,5 (p = 0,2) y score funcional 87,9 y 70,9 (p = 0,03). Posterior a eso obtuvimos en funcionalidad GTL versus GTA; física 92,2 versus GTA 73,1 (p = 0,04), emocional 84,1 versus 78,5 (p = 0,6), cognitiva 84,9 versus 79,0 (p = 0,3) y social 80,9 versus 72,2 (p = 0,4). Al analizar síntomas destaco; fatiga 14,6 versus 33,1 (p = 0,04) y dolor 13,4 versus 24,3 (p = 0,05). Finalmente, en síntomas digestivos altos obtuvimos en disfagia 0,84 GTL versus 17,3 GTA (p = 0,04). Conclusión: La GTL logra resultados comparables a GTA en calidad de vida e incluso ofrece ventajas significativas en funcionalidad física como también en síntomas como dolor, fatiga y disfagia.

Introduction: In recent years, laparoscopic gastrectomy has appeared as a surgical technique with oncological results comparable to the open technique, but there is little evidence regarding the postoperative quality of life of these patients. Objective: To evaluate the postoperative quality of life of patients undergoing laparoscopic total gastrectomy (LTG) compared to open total gastrectomy (OTG) in gastric cancer. Materials and Method: Prospective, observational study at Hospital Militar of Santiago, between January 2015 and June 2020. Two surveys validated for Chile were applied: EORTC QLQ-30 and EORTC QLQ-OG25. Results: 60 patients were obtained; 30 subjected to LTG and 30 to OTG. Average age was 66.3 ± 11 years for LTG and 68.2 ± 11 years for OTG (p = 0.5). A score was obtained in LTG versus OTG: global 83.3 and 80.2 (p = 0.6), symptomatic 17.1 and 25.5 (p = 0.2) and functional score 87.9 and 70.9 (p = 0.03). After that we got LTG versus OTG functionality; physical 92.2 versus 73.1 (p = 0.04), emotional 84.1 versus 78.5 (p = 0.6), cognitive 84.9 versus 79.0 (p = 0.3) and social 80.9 versus 72.2 (p = 0.4). When analyzing symptoms I highlight; fatigue 14.6 versus 33.1 (p = 0.04) and pain 13.4 versus 24.3 (p = 0.05). Finally, in upper digestive symptoms, we obtained 0.84 LTG versus 17.3 OTG in dysphagia (p = 0.04). Conclusion: LTG achieves results comparable to OTG in quality of life and even offers significant advantages in physical functionality as well as symptoms such as pain, fatigue and dysphagia.

Tratamiento endoscópico de una fístula aguda tras gastrectomía vertical laparoscópica / Endoscopic treatment of an acute fistula after laparoscopic sleeve gastrectomy / Tratamento endoscópico de uma fístula aguda após gastrectomia vertical laparoscópica

La fístula gástrica aguda es una de las principales complicaciones vinculadas a la gastrectomía vertical laparoscópica (GVL). Existen múltiples opciones terapéuticas para su resolución, siendo el tratamiento endoscópico mediante colocación de clips o stents uno de los más importantes. La aplicabilidad de cada método va a depender del tipo de fístula y del estado del paciente. Presentamos el caso de una mujer de 35 años, que desarrolla una fístula aguda posterior a una GVL. Se realiza tratamiento endoscópico con colocaciónn del sistema "over-the-scope clip" (Ovesco®) a nivel del orificio fistuloso, con posterior colocaciónn de stent metálico auto expandible.

Acute gastric fistula is one of the main complications associated with laparoscopic vertical gastrectomy (LVG). There are multiple therapeutic options for its resolution, being endoscopic treatment by placing clips or stents one of the most important. The applicability of each method will depend on the type of fistula and the patient's condition. We present the case of a 35-year-old woman who developed an acute fistula after LGV. Endoscopic treatment is performed with placement of the over-the-scope clip system (Ovesco®) at the level of the fistulous orifice, with subsequent placement of a self-expanding metal stent.

A fístula gástrica aguda é uma das principais complicações associadas à gastrectomia vertical laparoscópica (GVL). Existem múltiplas opções terapêuticas para a sua resolução, sendo o tratamento endoscópico com colocação de clipes ou stents uma das mais importantes. A aplicabilidade de cada método dependerá do tipo de fístula e do estado do paciente. Apresentamos o caso de uma mulher de 35 anos que apresentou uma fístula aguda após GVL. O tratamento endoscópico foi realizado com a colocação do sistema de clipe over-the-scope (Ovesco®) no nível do orifício fistuloso, com posterior colocação de stent metálico autoexpansível.

GIST gástrico complicado. Una forma de presentación inusual / Complicated gastric GIST. An unusual presentation

RESUMEN Los tumores GIST son un motivo de consulta cada vez más frecuente en las entrevistas de cirugía gastroenterológica. Suelen ser derivados como hallazgos incidentales o por presentar síntomas derivados de su crecimiento. Se presenta el caso clínico de una paciente que requirió internación de urgencia por síndrome anémico agudo. Se comenta su algoritmo diagnóstico y su resolución quirúrgica. Asimismo se comentan los estándares de diagnóstico y tratamiento actuales con especial foco en la estrategia quirúrgica, la cual debe ser individualizada según cada caso.

ABSTRACT Gastrointestinal stromal tumors (GISTs) are becoming an increasingly common reason for consultation in gastroenterology surgery interviews. Patients are usually referred for surgery due to an incidental finding or symptoms associated with tumor growth. We report the case of a female patient who required urgent hospitalization due to acute anemic syndrome. The diagnostic algorithm and surgical approach are described. The current standards of diagnosis and treatment are also discussed, with special focus on the surgical strategy, which must be tailored to each case.

Debut de cáncer gástrico con metástasis cerebral: manejo clínico quirúrgico

El cáncer gástrico es uno de los más frecuentes a nivel mundial. Las metástasis cerebrales por cáncer gástrico son poco frecuentes y se diagnostican en menos del 1% de los pacientes. Presentamos el caso de una mujer de 61 años con historia de disminución de la agudeza visual, cefalea y movimientos involuntarios. Le realizan una resonancia magnética que muestra una lesión de apariencia extraparenquimal occipital izquierda. El PET scan revela una zona hipermetabólica en curvatura menor del estómago, y la endoscopia evidencia una lesión sugerente de neoplasia maligna en fondo gástrico Borrmann I. Se decide realizar una excéresis tumoral por neurocirugía, cuyo estudio de anatomía patológica reveló adenocarcinoma metastásico a cerebro. Se le realiza una gastrectomía total D2, no se evidencian otras metástasis. La paciente evoluciona favorablemente en el postoperatorio. El estudio anatomopatológico revelo adenocarcinoma pobremente diferenciado. En Perú y en el mundo, aún no se han establecido recomendaciones estándar sobre cómo tratar a estos pacientes, aunque se sabe que la resección quirúrgica de metástasis cerebrales puede disminuir significativamente la morbilidad y prolongar la supervivencia en comparación con los enfoques no quirúrgicos. Hasta donde sabemos, es el primer reporte de este tipo que se presenta en el país.

Gastric cancer is one of the most frequent worldwide. Brain metastases from gastric cancer are rare and are diagnosed in less than 1% of patients with gastric cancer. We present the case of a 61-year-old woman with a history of decreased visual acuity, headache, and involuntary movements. She underwent an MRI that showed a left occipital extraparenchymal appearance lesion. The PET scan reveals a hypermetabolic zone in the lesser curvature of the stomach, and the endoscopy reveals a lesion suggestive of gastric malignant neoplasia in the Borrmann I fundus. It was decided to perform a tumor excision by neurosurgery, whose pathological anatomy study revealed metastatic adenocarcinoma to the brain. She undergoes a total D2 gastrectomy, no other metastases are evident. The patient evolves favorably in the postoperative period. The pathology study revealed a poorly differentiated adenocarcinoma. In Peru and in the world, standard recommendations on how to treat these patients have not yet been established, although it is known that surgical resection of brain metastases can significantly decrease morbidity and prolong survival compared to non-surgical approaches. As far as we know, it is the first report of this type presented in the country.

Remisión de Diabetes tipo 2 en pacientes sometidos a Cirugía Bariátrica (Bypass Gástrico vs Gastrectomía Vertical) en el Hospital Central Militar

Resumen México es el primer lugar a nivel mundial en obesidad; la Diabetes tipo 2 se encuentra asociada hasta en 90%. Este estudio observacional ambispectivo del 2009 al 2015, compara las tasas de remisión de diabetes tipo 2 en pacientes con IMC >35 kg/m2 operados de Bypass Gástrico Laparoscópico (BPGL) vs Gastrectomía Vertical en Manga Laparoscópica (GVML) monitorizando la normalización de los niveles de glucosa plasmática, disminución del porecentaje de HbA1C y cese en el uso de antidiabéticos por lo menos un año, siendo ese su objtetivo. Se analizaron los expedientes clínicos de los pacientes operados de BPGL y GVML con obesidad mórbida y diabetes tipo 2 en el periodo de enero del 2009 a junio del 2015, registrando en una base de datos las variables medibles de cada paciente. Se utilizó una tabla de ANOVA y la prueba t de Student mediante programa de análisis de datos SPSS®. Posterior a la cirugía se registraron cifras de glucosa en ayuno <100 mg/dl desde los primeros tres meses en la mayoría de los pacientes. Después de 12 meses de seguimiento los niveles de glucosa descendieron de 152.16 ± 65.3 mg/dl a 88.16 ± 14.05 mg/dl (p< 0.001), el porcentaje de HbA1C bajó de 7.4 ± 1.4 a 5.3 ± 0.8 (p <0.001), cuatro pacientes continuaron con algún tipo de medicamento, dos con insulina y dos con hipoglucemiantes orales. Existió una remisión de la diabetes tipo 2 en 20 pacientes (80%). En los pacientes con obesidad mórbida y diabetes tipo 2 tratados en el Hospital Central Militar, la GVML y el BPGL han demostrado seguridad y efectividad en la remisión de diabetes tipo 2 a mediano plazo. Sin diferencia significativa entre ambos.