The usefulness and positive predictive value of ultrasonography and computed tomography in the diagnosis of acute appendicitis in adults: A retrospective study.

OBJECTIVE: To analyze the evolution of the use of imaging tests (ultrasonography and computed tomography (CT)) in the diagnosis of acute appendicitis. To determine the positive predictive value of these tests and the percentage of negative and complicated appendectomies. MATERIAL AND METHODS: This retrospective study compared adults who underwent appendectomy for suspected acute appendicitis at our tertiary hospital during 2015 versus similar patients at our center during 2007. RESULTS: A total of 278patients were included. The rate of negative appendectomies descended to 5%. The positive predictive value of ultrasonography increased to 97.4% in 2015, and the positive predictive value of CT and combined CT and ultrasonography was 100%. The rate of complicated appendicitis increased (23% in 2015). CONCLUSIONS: The use of imaging tests increased, and the rate of "blind" laparotomies decreased. Nevertheless, the rate of complicated appendicitis increased.

Estudio retrospectivo y comparativo de la utilidad y del valor predictivo positivo de la ecografía y la tomografía computarizada en el diagnóstico de apendicitis aguda en adultos / The usefulness and positive predictive value of ultrasonography vs. computed tomography in the diagnosis of acute appendicitis in adults: a retrospective study

Objetivo: Analizar la evolución del uso de pruebas de imagen (ecografía y tomografía computarizada [TC]) en el diagnóstico de apendicitis aguda, el valor predictivo positivo (VPP) y determinar el porcentaje de apendicectomías negativas y complicadas. Material y métodos: Estudio retrospectivo que incluye a los pacientes adultos con apendicectomía por sospecha de apendicitis aguda en 2015 en un hospital terciario. Se compara con los del 2007 publicados previamente. Resultados: La muestra incluye 278 pacientes. La tasa de apendicectomías negativas descendió a un 5%. El VPP de la ecografía aumentó a 97,4% en 2015 y el VPP de la TC y del uso combinado de la ecografía y la TC fue del 100%. El porcentaje de apendicitis complicadas se incrementó (23% en 2015). Conclusiones: Se observó un aumento en el empleo de pruebas de imagen y una disminución de laparotomías en blanco. No obstante, las apendicitis complicadas se han incrementado.(AU)

Objective: To analyze the evolution of the use of imaging tests (ultrasonography and computed tomography (CT)) in the diagnosis of acute appendicitis. To determine the positive predictive value of these tests and the percentage of negative and complicated appendectomies. Material and methods: This retrospective study compared adults who underwent appendectomy for suspected acute appendicitis at our tertiary hospital during 2015 versus similar patients at our center during 2007. Results: A total of 278 patients were included. The rate of negative appendectomies descended to 5%. The positive predictive value of ultrasonography increased to 97.4% in 2015, and the positive predictive value of CT and combined CT and ultrasonography was 100%. The rate of complicated appendicitis increased (23% in 2015). Conclusions: The use of imaging tests increased, and the rate of “blind” laparotomies decreased. Nevertheless, the rate of complicated appendicitis increased.(AU)

The usefulness and positive predictive value of ultrasonography and computed tomography in the diagnosis of acute appendicitis in adults: a retrospective study. / Estudio retrospectivo y comparativo de la utilidad y del valor predictivo positivo de la ecografía y la tomografía computarizada en el diagnóstico de apendicitis aguda en adultos.

OBJECTIVE: To analyze the evolution of the use of imaging tests (ultrasonography and computed tomography (CT)) in the diagnosis of acute appendicitis. To determine the positive predictive value of these tests and the percentage of negative and complicated appendectomies. MATERIAL AND METHODS: This retrospective study compared adults who underwent appendectomy for suspected acute appendicitis at our tertiary hospital during 2015 versus similar patients at our center during 2007. RESULTS: A total of 278 patients were included. The rate of negative appendectomies descended to 5%. The positive predictive value of ultrasonography increased to 97.4% in 2015, and the positive predictive value of CT and combined CT and ultrasonography was 100%. The rate of complicated appendicitis increased (23% in 2015). CONCLUSIONS: The use of imaging tests increased, and the rate of "blind" laparotomies decreased. Nevertheless, the rate of complicated appendicitis increased.

Comparación de la herramienta Trigger con el conjunto mínimo básico de datos (CMBD) para la detección de eventos adversos en cirugía general / Comparison of the 'Trigger' tool with the minimum basic data set for detecting adverse events in general surgery

Introducción. La cirugía supone una de las tareas de alto riesgo para la aparición de eventos adversos. El objetivo principal de este estudio fue comparar la efectividad de la herramienta Trigger frente al registro de altas de hospitales del Sistema Nacional de Salud en la detección de eventos adversos (EA) en pacientes hospitalizados en cirugía general y sometidos a intervención quirúrgica. Material y métodos. Estudio retrospectivo observacional y descriptivo sobre pacientes ingresados en cirugía general de un hospital de tercer nivel, sometidos a intervención quirúrgica durante el año 2012. La identificación de eventos adversos se llevó a cabo mediante una revisión de historias clínicas empleando una adaptación de la metodología Global Trigger Tool y una revisión del registro del conjunto mínimo básico de datos (CMBD) de los mismos pacientes. Una vez identificados los EA se les asignó una categoría de daño y se determinó el grado en que estos podrían haber sido evitados. Para determinar el poder discriminatorio de las herramientas se usaron el área bajo la curva (ROC). Para comparar ambas herramientas se realizó la prueba estadística Hanley y McNei. Resultados. La herramienta Trigger detectó el 89,9% de todos los EA, mientras que el registro CMBD detectó el 28,4% de ellos. La herramienta Trigger obtuvo más información sobre la naturaleza y características de los EA. La prevalencia de EA fue de 36,8%. El área bajo la curva de la herramienta Trigger fue de 0,89, el de la herramienta basada en el registro de CMBD fue de 0,66. Las diferencias mostradas fueron estadísticamente significativas (p<0,001). Conclusiones. La herramienta Trigger detecta 3 veces más eventos adversos que el registro CMBD. La prevalencia de eventos adversos en cirugía general fue más alta de la estimada en otros estudios (AU)

Introduction. Surgery is a high risk for the occurrence of adverse events (AE). The main objective of this study is to compare the effectiveness of the Trigger tool with the Hospital National Health System registration of Discharges, the minimum basic data set (MBDS), in detecting adverse events in patients admitted to General Surgery and undergoing surgery. Material and methods. Observational and descriptive retrospective study of patients admitted to general surgery of a tertiary hospital, and undergoing surgery in 2012. The identification of adverse events was made by reviewing the medical records, using an adaptation of "Global Trigger Tool" ethodology, as well as the (MBDS) registered on the same patients. Once the AE were identified, they were classified according to damage and to the extent to which these could have been avoided. The area under the curve (ROC) were used to determine the discriminatory power of the tools. The Hanley and Mcneil test was used to compare both tools. Results. AE prevalence was 36.8%. The TT detected 89.9% of all AE, while the MBDS detected 28.48%. The TT provides more information on the nature and characteristics of the AE. The area under the curve was 0.89 for the TT and 0.66 for the MBDS. These differences were statistically significant (P<.001). Conclusions. The Trigger tool detects three times more adverse events than the MBDS registry. The prevalence of adverse events in General Surgery is higher than that estimated in other studies (AU)

[Comparison of the "Trigger" tool with the minimum basic data set for detecting adverse events in general surgery]. / Comparación de la herramienta Trigger con el conjunto mínimo básico de datos (CMBD) para la detección de eventos adversos en cirugía general.

INTRODUCTION: Surgery is a high risk for the occurrence of adverse events (AE). The main objective of this study is to compare the effectiveness of the Trigger tool with the Hospital National Health System registration of Discharges, the minimum basic data set (MBDS), in detecting adverse events in patients admitted to General Surgery and undergoing surgery. MATERIAL AND METHODS: Observational and descriptive retrospective study of patients admitted to general surgery of a tertiary hospital, and undergoing surgery in 2012. The identification of adverse events was made by reviewing the medical records, using an adaptation of "Global Trigger Tool" methodology, as well as the (MBDS) registered on the same patients. Once the AE were identified, they were classified according to damage and to the extent to which these could have been avoided. The area under the curve (ROC) were used to determine the discriminatory power of the tools. The Hanley and Mcneil test was used to compare both tools. RESULTS: AE prevalence was 36.8%. The TT detected 89.9% of all AE, while the MBDS detected 28.48%. The TT provides more information on the nature and characteristics of the AE. The area under the curve was 0.89 for the TT and 0.66 for the MBDS. These differences were statistically significant (P<.001). CONCLUSIONS: The Trigger tool detects three times more adverse events than the MBDS registry. The prevalence of adverse events in General Surgery is higher than that estimated in other studies.

Reservorios venosos subcutáneos tipo port-a-cath. Ventajas del acceso quirúrgico mediante venotomía cefálica / Port-A-Cath implantable venous access system. Advantages ofsurgical access by cephalic venotomy

Introducción: La colocación de dispositivos implantables permanentes ha aumentado exponencialmente debido al aumento de indicaciones. El objetivo de este artículo es demostrar las ventajas de la utilización de la disección de vena cefálica para la colocación de sistemas venosos centrales. Métodos: Estudio longitudinal, descriptivo y retrospectivo, en el cual analizamos 265 pacientes consecutivos, recogidos entre enero de 2010 y octubre de 2013, a los que se les colocó un reservorio venoso subcutáneo mediante venotomía de la vena cefálica en el surco deltopectoral como acceso primario. Se detallan complicaciones intraoperatorias y postoperatorias tempranas y tardías. Resultados: En 253 pacientes se canaliza la vena cefálica, representando una tasa de éxito del 95,5 %. No se asocian complicaciones intraoperatorias como neumotórax o hemotórax. La tasa de complicaciones tempranas es el del 4 %, y tardías del 11,5 %, con un seguimiento mínimo de ocho meses. Se asociaron a retirada del sistema en 14 pacientes. Conclusión: El acceso por vena cefálica en régimen de cirugía mayor ambulatoria es seguro, con una alta tasa de éxito en nuestro estudio, y con una tasa de complicaciones tempranas y tardías bajas igual al acceso mediante punción sin riesgo de neumo-hemotórax (AU)

Introduction: The use of totally implantable access ports has increased exponentially due to the increase of indications. The objective of this article is to demonstrate the advantages of using surgical venous cutdowns of the cefalic vein to place central venous systems. Patients and methods: Longitudinal, descriptive and retrospective study, which analyzed 265 consecutive patients, collected between January 2010 and October 2013. In these patients a subcutaneous venous reservoir was placed by opening the cephalic vein in the deltopectoral groove as primary access. Intraoperative and postoperative early and late complications were documented in detail. Results: The primary success rate was 95.5 % for the venous cutdowns. No intraoperative complications such as pneumothorax or haemothorax were associated. The early complication rate is 4 %; late complications rate is 11.5 %, with a minimum follow-up of eight months. In 14 cases the complications were associated with the removal of the system. Conclusion: The surgical venous cutdown in ambulatory surgery is safe, with a high success rate in our study, and a rate of early and late complications like puncture of the subclavian vein approach, without risk of pneumo-haemothorax (AU)

Impacto de los métodos de diagnóstico por imagen en la apendicectomía de urgencia / Impact of imaging tests on the negative appendectomy rate

Introducción. Las apendicectomías negativas y gangrenadas son indicadores de calidad en cirugía general. Los objetivos de este estudio son analizar las apendicectomías de urgencia en relación con el uso de pruebas de imagen y revisar la bibliografía para analizar la calidad del proceso diagnóstico en la apendicitis aguda. Material y métodos. Estudio retrospectivo en el que se incluyeron todos los pacientes a los que se les realizó apendicectomía de urgencia por sospecha de apendicitis aguda en el Hospital Universitario 12 de Octubre de Madrid durante el año 2007. Los datos se obtuvieron de los informes de anatomía patológica y de las pruebas de imagen realizadas. Se analizaron la histología, las pruebas de imagen empleadas y su utilidad diagnóstica. Se compararon con los niveles de calidad publicados en la literatura médica internacional. Resultados. Se incluyeron en el estudio 394 pacientes. La tasa de apendicectomías negativas fue del 9,6%. Se le realizó ecografía (ECO) abdominal al 54,6% de los pacientes y tomografía axial computarizada (TAC) abdominal al 10,2% de los pacientes (TAC+ECO: 4,2%). El valor predictivo positivo de la ECO fue del 92,2% y el de la TAC fue del 97,5%. Conclusión. Las apendicectomías negativas (9,6%) muestran valores inferiores a los publicados históricamente, pero son más elevados que los publicados recientemente en EE. UU. El uso de técnicas de imagen en nuestro medio es inferior al publicado en EE. UU., aunque similar al de otros países europeos(AU)

Introduction. Negative appendectomies and perforated appendectomies have traditionally been quality indicators in surgery. The aim of this study is to analyze the emergency appendectomies in our hospital regarding the use of imaging tests and a review of the literature to analyze the quality of diagnosis in acute appendicitis. Material and methods. Retrospective study including all patients operated on for suspected acute appendicitis at a single institution for one year (2007). Data gathered from histology and imaging tests reports. Analysis of the histology results, imaging test used and its diagnostic accuracy. Comparison with quality levels published in the international literature. Results. A total of 394 patients were included in the study, the overall rate of negative appendectomy was 9.6%. Abdominal ultrasound (AU) was performed on 54.6% of patients and abdominal CT-scan on 10.2% of them, and 4.2% of the patients had both tests. AU positive predictive value was 82%. CT-scan positive predictive value was 97%. Conclusion. The negative appendectomy rate (9.6%) in our centre shows values lower than the published ones in historical series but superior to the one published recently in the USA. The use of imaging tests in our hospital is lower than the one published in the USA, although similar to data reported in other European countries(AU)

[Impact of imaging tests on the negative appendectomy rate]. / Impacto de los métodos de diagnóstico por imagen en la apendicectomía de urgencia.

INTRODUCTION: Negative appendectomies and perforated appendectomies have traditionally been quality indicators in surgery. The aim of this study is to analyze the emergency appendectomies in our hospital regarding the use of imaging tests and a review of the literature to analyze the quality of diagnosis in acute appendicitis. MATERIAL AND METHODS: Retrospective study including all patients operated on for suspected acute appendicitis at a single institution for one year (2007). Data gathered from histology and imaging tests reports. Analysis of the histology results, imaging test used and its diagnostic accuracy. Comparison with quality levels published in the international literature. RESULTS: A total of 394 patients were included in the study, the overall rate of negative appendectomy was 9.6%. Abdominal ultrasound (AU) was performed on 54.6% of patients and abdominal CT-scan on 10.2% of them, and 4.2% of the patients had both tests. AU positive predictive value was 82%. CT-scan positive predictive value was 97%. CONCLUSION: The negative appendectomy rate (9.6%) in our centre shows values lower than the published ones in historical series but superior to the one published recently in the USA. The use of imaging tests in our hospital is lower than the one published in the USA, although similar to data reported in other European countries.

An unusual expression of hyperplastic gastropathy (Menetrier type) in twins.

Menetrier's disease is an uncommon condition of unknown aetiology. We describe two cases of male identical twins with haematemesis aged 29 and 35 years that exhibited a similar and particular form of this hyperplastic gastropathy. Their stomachs showed confluent polypoid mucosal projections affecting mainly the gastric fundus and the antrum. To the best of our knowledge, only four previous cases have been reported in a familial setting, and this is the first documented example of an occurrence in twins. These two cases suggest the possibility of a genetic predisposition for this condition.

Metástasis gástrica e intestinal de paraganglioma de origen pulmonar / No disponible

No disponible