[Clinical and pathological features of gastrointestinal stromal tumors (GIST) in a single institution: A descriptive study and review of the literature]. / Perfil clínico y anatomopatológico de los tumores estromales gastrointestinales de un hospital de área: Estudio descriptivo y revisión de la literatura.

INTRODUCTION: This study was aimed to assess the main clinical, pathological and therapeutic characteristics of a cohort of gastrointestinal stromal tumors (GIST). METHODS: Observational study including 66 patients diagnosed with GIST admitted to our hospital between 2002 and 2015. Parameters related to medical history, clinical manifestations, medical and surgical treatment, histopathology, and morbi-mortality were studied. A review of the literature was included to correlate with the results. RESULTS: The most frequent location of GIST in our patients was the stomach (65.2%), in which the gastric fondo was the predominant region. The most common clinical manifestation was gastrointestinal hemorrhage (45.5%), followed by incidental finding after imaging or invasive procedures (33.3%). 58 patients underwent surgery (90.6%), 15.5% were urgent. A total of 69% of the GISTs had a size between 2 and 10cm. The one-year mortality was 7.9%, all cases related to local or remote extension, or surgical complications. CONCLUSION: There is a large clinical variability among GIST cases. The first choice of treatment is surgery, which is feasible in most cases and should be as conservative as possible. The prognosis varies depending on the size and proliferation index, thus close follow-up should be performed. No tumor marker is clearly associated with a poor prognosis. New molecular biology studies are needed in order to find therapeutic targets.

[Nutritional factors associated with complications in major abdominopelvic surgery]. / Factores nutricionales asociados a complicaciones en cirugía mayor abdominopélvica.

INTRODUCTION: major abdomino-pelvic surgery includes a series of procedures that carry a high percentage of postoperative complications. Our objective is to identify the factors related to post-surgical complications, classified according to Clavien-Dindo classification, with special attention to nutritional factors in patients who undergo major abdomino-pelvic surgery. MATERIAL AND METHOD: retrospective observational study between July 2012 and December 2013. A total of 255 patients undergoing major abdomino-pelvic surgery (colorectal, gastric, obesity or total cystectomy) were selected on a scheduled basis. Four types of variables were collected: sociodemographic, baseline, diagnostic and outcome variables, including perioperative complications that were classified in 5 grades according to the Clavien-Dindo scale, and for the analysis of results, two groups of patients were separated: The group with complications grade 0 and I and group 2 with complications III to V. The statistical analysis was performed using IBM SPSS version 22.0. RESULTS: patients had a mean age of 65 years. Twenty patients (7.8%) returned in the first 30 days after surgery and 8 patients (3.1%) died. 152 cases (59.6%) were classified in group 1 and 103 cases (40.4%) in group 2. When analyzing both groups, we found significant differences in the operative variables: type of surgery and laparoscopic or open approach. Regarding the physiological and nutritional parameters, we observed significant differences in the following factors: preoperative BMI, preoperative albumin, preoperative hemoglobin and day of onset of postoperative tolerance. CONCLUSION: in our study we have identified modifiable factors, such as hemoglobin and preoperative albumin, BMI and early onset of oral tolerance, related to postoperative morbidity. Preoperative nutritional status is related to postoperative complications in major abdomino-pelvic surgery.

Introducción: la cirugía mayor abdominopélvica es un proceso que conlleva un alto porcentaje de complicaciones posquirúrgicas. Nuestro objetivo es identificar los factores relacionados con las complicaciones posquirúrgicas, catalogadas según la clasificación de Clavien-Dindo, con atención especial a los factores nutricionales en los pacientes que se intervienen de cirugía mayor abdominopélvica.Material y método: estudio observacional retrospectivo, realizado entre julio de 2012 a diciembre de 2013. Se seleccionaron a 255 pacientes sometidos a cirugía mayor abdominopélvica (cirugía colorrectal, gástrica, obesidad o cistectomía total) de forma programada. Se recogieron cuatro tipos de variables: sociodemográficas, de situación basal, de diagnóstico y de resultado, incluyendo las complicaciones perioperatorias que fueron clasificadas en 5 grados según la escala de Clavien-Dindo y, para el análisis de resultados se separaron dos grupos de pacientes: el grupo con complicaciones de grados 0 y I y el grupo 2 con complicaciones III a V. El análisis estadístico se ha realizado mediante IBM SPSS versión 22.0.Resultados: los pacientes tuvieron una edad media de 65 años. Reingresaron 20 pacientes (7,8%) en los primeros 30 días tras la cirugía y 8 pacientes (3,1%) murieron. Ciento cincuenta y dos casos (59,6%) fueron clasificados en el grupo 1 y 103 casos (40,4%) en el grupo 2. Al analizar ambos grupos, encontramos diferencias significativas en las variables operatorias: tipo de cirugía y abordaje laparoscópico o abierto. Respecto a los parámetros fisiológicos y nutricionales, observamos diferencias significativas en los siguientes factores: IMC prequirúrgico, albúmina prequirúrgica, hemoglobina prequirúrgica y día de inicio de tolerancia postoperatoria.Conclusión: en nuestro estudio hemos identificado factores modificables, como la hemoglobina y albúmina preoperatoria, el IMC y el inicio temprano de tolerancia oral, relacionadas con la morbilidad posoperatoria. El estado nutricional preoperatorio tiene relación con las complicaciones posquirúrgicas en cirugía mayor abdominopélvica.

Incidental versus non-incidental thyroid carcinoma: Clinical presentation, surgical management and prognosis. / Carcinoma de tiroides incidental versus no incidental: presentación clínica, tratamiento quirúrgico y pronóstico.

BACKGROUND AND OBJECTIVE: Thyroid cancer may be clinically evident as a tumor mass in the neck or as a histopathological incidental finding after thyroid surgery for an apparent benign condition. Our objective was to assess the differences in clinical signs, surgical management, and course between incidental and clinically diagnosed thyroid tumors. METHODS: A retrospective study was conducted on patients operated on for benign or malignant thyroid disease from January 2000 to March 2014. Among the 1415 patients who underwent any thyroid surgery, 264 neoplasms were found, of which 170 were incidental. A comparison was made of incidental versus non-incidental carcinomas. Among incidental carcinomas, cases whose indication for surgery was Graves' disease were compared to those with multinodular goiter. RESULTS: Incidental carcinomas were in earlier stages and required less aggressive surgery. There were no differences in surgical complications between incidental and clinical tumors, but mortality and relapses were markedly higher in non-incidental cancers (4.4% vs 0% and 13.2% vs 4.8% respectively). Carcinomas developing on Graves' disease showed no differences from all other incidental tumors in terms of complications, mortality, or relapse after surgery. CONCLUSIONS: Early stage thyroid cancer has better survival and prognosis after surgical treatment.

Factores nutricionales asociados a complicaciones en cirugía mayor abdominopélvica / Nutritional factors associated with complications in major abdominopelvic surgery

Introducción: la cirugía mayor abdominopélvica es un proceso que conlleva un alto porcentaje de complicaciones posquirúrgicas. Nuestro objetivo es identificar los factores relacionados con las complicaciones posquirúrgicas, catalogadas según la clasificación de Clavien-Dindo, con atención especial a los factores nutricionales en los pacientes que se intervienen de cirugía mayor abdominopélvica. Material y método: estudio observacional retrospectivo, realizado entre julio de 2012 a diciembre de 2013. Se seleccionaron a 255 pacientes sometidos a cirugía mayor abdominopélvica (cirugía colorrectal, gástrica, obesidad o cistectomía total) de forma programada. Se recogieron cuatro tipos de variables: sociodemográficas, de situación basal, de diagnóstico y de resultado, incluyendo las complicaciones perioperatorias que fueron clasificadas en 5 grados según la escala de Clavien-Dindo y, para el análisis de resultados se separaron dos grupos de pacientes: el grupo con complicaciones de grados 0 y I y el grupo 2 con complicaciones III a V. El análisis estadístico se ha realizado mediante IBM SPSS versión 22.0. Resultados: los pacientes tuvieron una edad media de 65 años. Reingresaron 20 pacientes (7,8%) en los primeros 30 días tras la cirugía y 8 pacientes (3,1%) murieron. Ciento cincuenta y dos casos (59,6%) fueron clasificados en el grupo 1 y 103 casos (40,4%) en el grupo 2. Al analizar ambos grupos, encontramos diferencias significativas en las variables operatorias: tipo de cirugía y abordaje laparoscópico o abierto. Respecto a los parámetros fisiológicos y nutricionales, observamos diferencias significativas en los siguientes factores: IMC prequirúrgico, albúmina prequirúrgica, hemoglobina prequirúrgica y día de inicio de tolerancia postoperatoria. Conclusión: en nuestro estudio hemos identificado factores modificables, como la hemoglobina y albúmina preoperatoria, el IMC y el inicio temprano de tolerancia oral, relacionadas con la morbilidad posoperatoria. El estado nutricional preoperatorio tiene relación con las complicaciones posquirúrgicas en cirugía mayor abdominopélvica

Introduction: major abdomino-pelvic surgery includes a series of procedures that carry a high percentage of postoperative complications. Our objective is to identify the factors related to post-surgical complications, classifi ed according to Clavien-Dindo classifi cation, with special attention to nutritional factors in patients who undergo major abdomino-pelvic surgery. Material and method: retrospective observational study between July 2012 and December 2013. A total of 255 patients undergoing major abdomino-pelvic surgery (colorectal, gastric, obesity or total cystectomy) were selected on a scheduled basis. Four types of variables were collected: sociodemographic, baseline, diagnostic and outcome variables, including perioperative complications that were classified in 5 grades according to the Clavien-Dindo scale, and for the analysis of results, two groups of patients were separated: The group with complications grade 0 and I and group 2 with complications III to V. The statistical analysis was performed using IBM SPSS version 22.0. Results: patients had a mean age of 65 years. Twenty patients (7.8%) returned in the first 30 days after surgery and 8 patients (3.1%) died. 152 cases (59.6%) were classifi ed in group 1 and 103 cases (40.4%) in group 2. When analyzing both groups, we found signifi cant differences in the operative variables: type of surgery and laparoscopic or open approach. Regarding the physiological and nutritional parameters, we observed signifi cant differences in the following factors: preoperative BMI, preoperative albumin, preoperative hemoglobin and day of onset of postoperative tolerance. Conclusion: in our study we have identifi ed modifi able factors, such as hemoglobin and preoperative albumin, BMI and early onset of oral tolerance, related to postoperative morbidity. Preoperative nutritional status is related to postoperative complications in major abdomino-pelvic surgery

Perfil clínico y anatomopatológico de los tumores estromales gastrointestinales de un hospital de área: Estudio descriptivo y revisión de la literatura / Clinical and pathological features of gastrointestinal stromal tumors (GIST) in a single institution: A descriptive study and review of the literature

Introducción: Describir las principales características clínicas, anatomopatológicas, terapéuticas y evolutivas de una serie amplia de tumores estromales gastrointestinales (GIST). Métodos: Estudio observacional de una serie de 66 casos de GIST tratados en nuestro hospital de 2002 a 2015. Seleccionamos variables relacionadas con los antecedentes personales, las manifestaciones clínicas, el tratamiento médico y quirúrgico, la anatomía patológica y la morbimortalidad. Añadimos una revisión de la literatura para correlacionarla con nuestros resultados. Resultados: La localización más frecuente fue el estómago (65,2%), en el que destacó como región predominante el fondo. La manifestación clínica más habitual fue la hemorragia digestiva (45,5%), seguida del hallazgo casual tras la realización de alguna prueba de imagen o procedimiento invasivo (33,3%). Recibieron cirugía 58 pacientes (90,6%), el 15,5% de carácter urgente. El 69% de los GIST tenían un tamaño entre 2 y 10 cm. La mortalidad al año debida al tumor fue de un 7,9% (5 casos), todos ellos relacionados con extensión local o a distancia, o complicación quirúrgica. Conclusiones: La variabilidad clínica de los GIST es muy amplia. El tratamiento de primera elección es la cirugía, que es factible en la mayoría de los casos y debe ser lo más conservadora posible. El pronóstico es variable, dependiendo del tamaño y del índice de proliferación, por lo que debe realizarse un seguimiento estrecho. No existe un marcador tumoral claramente asociado a un peor pronóstico, por lo que se necesitan nuevos estudios de biología molecular con el objetivo de encontrar dianas terapéuticas (AU)

Introduction: This study was aimed to assess the main clinical, pathological and therapeutic characteristics of a cohort of gastrointestinal stromal tumors (GIST). Methods: Observational study including 66 patients diagnosed with GIST admitted to our hospital between 2002 and 2015. Parameters related to medical history, clinical manifestations, medical and surgical treatment, histopathology, and morbi-mortality were studied. A review of the literature was included to correlate with the results. Results: The most frequent location of GIST in our patients was the stomach (65.2%), in which the gastric fondo was the predominant region. The most common clinical manifestation was gastrointestinal hemorrhage (45.5%), followed by incidental finding after imaging or invasive procedures (33.3%). 58 patients underwent surgery (90.6%), 15.5% were urgent. A total of 69% of the GISTs had a size between 2 and 10 cm. The one-year mortality was 7.9%, all cases related to local or remote extension, or surgical complications. Conclusion: There is a large clinical variability among GIST cases. The first choice of treatment is surgery, which is feasible in most cases and should be as conservative as possible. The prognosis varies depending on the size and proliferation index, thus close follow-up should be performed. No tumor marker is clearly associated with a poor prognosis. New molecular biology studies are needed in order to find therapeutic targets (AU)

Carcinoma de tiroides incidental versus no incidental: presentación clínica, tratamiento quirúrgico y pronóstico / Incidental versus non-incidental thyroid carcinoma: clinical presentation, surgical management and prognosis

Antecedentes y objetivo: El cáncer tiroideo puede manifestarse clínicamente por la presencia de un nódulo cervical, o constituir un hallazgo casual en el estudio histológico de la glándula extirpada con diagnóstico, a priori, benigno. El objetivo del presente estudio fue estudiar las diferencias clínicas, de manejo quirúrgico y curso evolutivo entre los tumores tiroideos incidentales y los tumores detectados clínicamente. Material y métodos: Estudio retrospectivo de pacientes intervenidos por enfermedad tiroidea, ya fuese benigna o maligna, en el período comprendido entre enero de 2000 y marzo de 2014. De 1.415 pacientes que se sometieron a algún tipo de cirugía tiroidea se identificaron un total de 264 neoplasias, de las cuales 170 fueron incidentales. Se realizó comparación entre carcinomas incidentales versus no incidentales. Además, entre los incidentales se compararon los casos cuya indicación quirúrgica fue enfermedad de Graves frente a bocio multinodular. Resultados: Los carcinomas incidentales presentaron estadios más precoces y requirieron cirugía menos agresiva. No se observaron diferencias en las complicaciones quirúrgicas entre ambos grupos, aunque tanto la mortalidad como las tasas de recidiva fueron notablemente mayores en el grupo de no incidentales (4,4% vs 0% y 13,2% vs 4,8% respectivamente). Los carcinomas desarrollados sobre enfermedad de Graves no mostraron diferencias respecto al resto de los tumores incidentales, respecto a complicaciones, mortalidad o recidiva tras la cirugía. Conclusiones: El cáncer tiroideo en estadios iniciales presenta mayor supervivencia y mejor respuesta al tratamiento quirúrgico (AU)

Background and objective: Thyroid cancer may be clinically evident as a tumor mass in the neck or as a histopathological incidental finding after thyroid surgery for an apparent benign condition. Our objective was to assess the differences in clinical signs, surgical management, and course between incidental and clinically diagnosed thyroid tumors. Methods: A retrospective study was conducted on patients operated on for benign or malignant thyroid disease from January 2000 to March 2014. Among the 1415 patients who underwent any thyroid surgery, 264 neoplasms were found, of which 170 were incidental. A comparison was made of incidental versus non-incidental carcinomas. Among incidental carcinomas, cases whose indication for surgery was Graves’ disease were compared to those with multinodular goiter. Results: Incidental carcinomas were in earlier stages and required less aggressive surgery. There were no differences in surgical complications between incidental and clinical tumors, but mortality and relapses were markedly higher in non-incidental cancers (4.4% vs 0% and 13.2% vs 4.8% respectively). Carcinomas developing on Graves’ disease showed no differences from all other incidental tumors in terms of complications, mortality, or relapse after surgery. Conclusions: Early stage thyroid cancer has better survival and prognosis after surgical treatment (AU)

Necrosis mamaria completa por acenocumarol / Complete mammary necrosis due to acenocoumarol

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