Barrett's esophagus and esophageal cancer after sleeve gastrectomy. Myth or reality?

Sleeve gastrectomy has become the most performed bariatric surgery technique in the world. This bariatric technique has been related to the appearance of gastroesophageal reflux and recently with de novo Barrett's esophagus. It is not clear that this leads to an increased incidence of esophageal adenocarcinoma. In this review we analyze the current scientific literature to try to answer the true incidence of Barrett's esophagus and adenocarcinoma after sleeve gastrectomy, and whether these data should make us change the indications for this technique.

Aprendizaje basado en la simulación: valoración de los objetivos docentes en un programa de abdomen agudo y oclusión intestinal en cirugía general / Simulation-based learning: assessment of the teaching objectives in a program of acute abdomen and intestinal occlusion in general surgery, in medicine degree students

Introducción y objetivo: Analizar el logro de los objetivos docentes desarrollados durante el escenario de los casos de simulación a través de la valoración del profesor, los participantes observadores y quien realiza la propia simulación. Sujetos y métodos: Estudio observacional, prospectivo, descriptivo y unicéntrico, realizado con estudiantes de tercer curso de Medicina de la Universitat Autònoma de Barcelona. Se evalúan los objetivos docentes para cada caso clínico simulado por parte de los estudiantes que realizan la simulación, los observadores y el profesor. La evaluación numérica sigue una escala de tipo escala visual analógica y la categórica los clasifica en conseguidos, parcialmente conseguidos y no conseguidos. El estado nervioso y la comodidad de los alumnos también se evalúan numéricamente. Resultados: Se ha registrado la valoración de los objetivos de 929 participantes. La evaluación de los objetivos tiene un valor medio superior a 7 para cada uno de ellos. Existe una diferencia de 1,5-2 puntos en la valoración media entre el primer caso y el último, y no hay ningún alumno que no consiga los objetivos en el último caso. Se describe un estado de nervios alrededor de 4,5 y de comodidad alrededor de 7, sin diferencias entre los distintos evaluadores. Conclusiones: El logro de los objetivos se consigue de forma notable. Entre el primer caso y el último existe una significativa diferencia en el grado de obtención de los objetivos. No hay una relación entre el estado emocional de los participantes y la consecución de los objetivos.(AU)

Introduction and aim: To analyze the achievement of the educational objectives developed during the scenario of the simulation cases through the assessment of the teacher, the observer participants and the person who performs the simulation itself. Subjects and methods: Observational, prospective, descriptive and single-center study, carried out with 3rd year Medicine students at the Universitat Autònoma de Barcelona. The teaching objectives for each simulated clinical case are evaluated by the students who carry out the simulation, the observers and the teacher. The numerical evaluation follows a VAS-type scale and the categorical one classifies them as achieved, partially achieved and not achieved. The nervous state and comfort of the students are also evaluated numerically. Results: The evaluation of the objectives of 929 participants has been registered. The evaluation of the objectives has an average value greater than 7 for each one of them. There is a difference of 1.5-2 points in the average assessment between the first case and the last, with no student not achieving the objectives in the last case. A state of nerves around 4.5 and comfort around 7 is described, with no differences between the different evaluators. Conclusions: The achievement of the objectives is achieved in a remarkable way. Between the first case and the last, there is a significant difference in the degree of achievement of the objectives. There is no relationship between the emotional state of the participants and the achievement of the objectives.(AU)

Resultados del Registro Nacional de Politraumatismos español ¿Dónde estamos y a dónde nos dirigimos? / Results of the Spanish National Polytrauma Registry. Where are we and where are we heading?

Introducción: En 2017 se emprendió el Registro Nacional de Politraumatismos (RNP) a nivel estatal español, cuya finalidad residía en mejorar la calidad de la atención al paciente politraumatizado grave y evaluar el uso de recursos y estrategias de tratamiento. El objetivo de este trabajo es presentar los datos recogidos en el RNP hasta la actualidad. Métodos: Estudio observacional retrospectivo a partir de los datos recogidos prospectivamente en el RNP. Se incluyen pacientes mayores de 14 años, con ISS≥15 o mecanismo de trauma penetrante, atendidos en 17 hospitales de tercer nivel de España. Resultados: Del 1/1/17 al 1/1/22 se han registrado un total de 2.069 pacientes politraumatizados. El 76,4% son varones; edad media: 45 años; ISS medio: 22,8 y mortalidad: 10,2%. El mecanismo de lesión más frecuente es el cerrado (80%) con mayor incidencia de accidentes de moto (23%). Un 12% de los pacientes sufren un traumatismo penetrante, por arma blanca en el 84%. Un 16% de los pacientes ingresa hemodinámicamente inestable en el hospital. Activando el protocolo de transfusión masiva en el 14% de los pacientes e interviniendo quirúrgicamente a un 53%. La estancia hospitalaria mediana es de 11 días. Precisando ingreso en la UCI un 73,4% (estancia media: 5 días). Conclusiones: Los pacientes politraumatizados registrados en el RNP son mayoritariamente varones de mediana edad, que sufren traumatismos cerrados y presentan una elevada incidencia de lesiones torácicas. La detección y el tratamiento dirigido de este tipo de lesiones probablemente permitirá mejorar la calidad asistencial del politraumatizado en nuestro medio. (AU)

Introduction: In 2017 the Spanish National Polytrauma Registry (SNPR) was initiated in Spain, its goal was to improve the quality of severe trauma management and evaluate the use of resources and treatment strategies. The objective of this study is to present the information obtained with the SNPR since it was initiated. Methods: Observational study with prospective data collection from the SNPR. Trauma patients included are older than 14 yeas, with ISS ≥ 15 or penetrating mechanism. In total 17 hospitals from Spain have participated. Results: From 1/1/17 to 1/1/22, 2069 trauma patients were registered. The majority were men (76.4%); mean age: 45 years; mean ISS: 22.8 and mortality: 10.2%. The most common mechanism of injury was blunt trauma (80%), being motorbike accident the most frequent (23%). Penetrating trauma is presented in 12% of patients, being stab wound the most common (84%). Sixteen percent of patients are hemodynamically unstable on hospital arrival. Massive transfusion protocol is activated in 14% of patients and 53% are operated. Median hospital stay is 11 days. There is a 73.4% of patients who need intensive care unit (ICU) admission, with a median ICU stay of 5 days. Conclusions: Trauma patients registered in the SNPR are predominantly middle-aged males who experience blunt trauma with a high incidence of thoracic injuries. Early and addressed detection of these kind of injuries would probably improve trauma quality of care in our environment. (AU)

Results of the Spanish National Polytrauma Registry. Where are we and where are we heading?

INTRODUCTION: In 2017, the Spanish National Polytrauma Registry (SNPR) was initiated in Spain with the goal to improve the quality of severe trauma management and evaluate the use of resources and treatment strategies. The objective of this study is to present the data obtained with the SNPR since its inception. METHODS: We conducted an observational study with prospective data collection from the SNPR. The trauma patients included were over 14 years of age, with ISS ≥ 15 or penetrating mechanism of injury, from a total of 17 tertiary hospitals in Spain. RESULTS: From 1/1/17 to 1/1/22, 2069 trauma patients were registered. The majority were men (76.4%), with a mean age of 45 years, mean ISS 22.8, and mortality 10.2%. The most common mechanism of injury was blunt trauma (80%), the most frequent being motorcycle accident (23%). Penetrating trauma was presented in 12% of patients, stab wounds being the most common (84%). On hospital arrival, 16% of patients were hemodynamically unstable. The massive transfusion protocol was activated in 14% of patients, and 53% underwent surgery. Median hospital stay was 11 days, while 73.4% of patients required intensive care unit (ICU) admission, with a median ICU stay of 5 days. CONCLUSIONS: Trauma patients registered in the SNPR are predominantly middle-aged males who experience blunt trauma with a high incidence of thoracic injuries. Early addressed detection and treatment of these kind of injuries would probably improve the quality of trauma care in our environment.

Alterations in tissue oxygen saturation measured by near-infrared spectroscopy in trauma patients after initial resuscitation are associated with occult shock.

PURPOSE: Persistent occult hypoperfusion after initial resuscitation is strongly associated with increased morbidity and mortality after severe trauma. The objective of this study was to analyze regional tissue oxygenation, along with other global markers, as potential detectors of occult shock in otherwise hemodynamically stable trauma patients. METHODS: Trauma patients undergoing active resuscitation were evaluated 8 h after hospital admission with the measurement of several global and local hemodynamic/metabolic parameters. Apparently hemodynamically stable (AHD) patients, defined as having SBP ≥ 90 mmHg, HR < 100 bpm and no vasopressor support, were followed for 48 h, and finally classified according to the need for further treatment for persistent bleeding (defined as requiring additional red blood cell transfusion), initiation of vasopressors and/or bleeding control with surgery and/or angioembolization. Patients were labeled as "Occult shock" (OS) if they required any intervention or "Truly hemodynamically stable" (THD) if they did not. Regional tissue oxygenation (rSO2) was measured non-invasively by near-infrared spectroscopy (NIRS) on the forearm. A vascular occlusion test was performed, allowing a 3-min deoxygenation period and a reoxygenation period following occlusion release. Minimal rSO2 (rSO2min), Delta-down (rSO2-rSO2min), maximal rSO2 following cuff-release (rSO2max), and Delta-up (rSO2max-rSO2min) were computed. The NIRS response to the occlusion test was also measured in a control group of healthy volunteers. RESULTS: Sixty-six consecutive trauma patients were included. After 8 h, 17 patients were classified as AHD, of whom five were finally considered to have OS and 12 THD. No hemodynamic, metabolic or coagulopathic differences were observed between the two groups, while NIRS-derived parameters showed statistically significant differences in Delta-down, rSO2min, and Delta-up. CONCLUSIONS: After 8 h of care, NIRS evaluation with an occlusion test is helpful for identifying occult shock in apparently hemodynamically stable patients. LEVEL OF EVIDENCE: IV, descriptive observational study. TRIAL REGISTRATION: ClinicalTrials.gov Registration Number: NCT02772653.

Consecuencias de la toma de decisiones terapéuticas con base en el resultado del FAST en pacientes politraumáticos con fractura pélvica / Consequencies of therapeutic decision-making based on FAST results in trauma patients with pelvic fracture

Introducción: La exactitud del FAST disminuye notablemente en los pacientes politraumáticos con fractura pélvica. El objetivo es analizar las consecuencias de tomar decisiones terapéuticas basadas en el resultado del FAST en los pacientes politraumáticos con fractura de pelvis. Métodos: Estudio descriptivo de pacientes con politraumatismos mayores de 16 años que han ingresado en el área de críticos o que han fallecido previamente, con fractura pélvica. El resultado del FAST ha sido comparado con un valor realmente positivo o negativo según el resultado de la laparotomía o de la tomografía computarizada.Resultados: En 13 años, se ha incluido a 263 pacientes politraumáticos con fractura pélvica (ISS medio de 31; mortalidad 19%). El FAST tenía una sensibilidad del 65,2%, una especificidad del 69%, una tasa de falsos negativos del 34,8% y una tasa de falsos positivos del 30,9%. Los pacientes hemodinámicamente inestables tenían el doble de mortalidad que los pacientes estables (27% vs. 14%, p <0,05). Los pacientes con un FAST positivo tenían mayor mortalidad que los pacientes con FAST negativo (43% vs. 26%); 4 de 10 pacientes hemodinámicamente inestables con un FAST falsamente positivo que se sometieron a laparotomía exploradora innecesaria murieron por shock hipovolémico. La mortalidad se redujo del 60 al 20% asociando un packing preperitoneal. Conclusiones: La reducida eficacia del FAST en pacientes con fractura de pelvis nos obliga a cuestionarnos las consecuencias de la toma de decisiones terapéuticas con base en sus resultados. Los pacientes con FAST falsamente positivo tienen una mortalidad mayor, que se puede reducir aplicando un packing preperitoneal. (AU)

Introduction: FAST is essential to decide if trauma patients need laparotomy, but has a notably decrease in accuracy in patients with pelvic fracture. Our objective is to analyze the consequences of therapeutic decision-making based on the FAST results in trauma patients with pelvic fracture. Methods: Descriptive study that includes trauma patients older than 16 with a pelvic fracture admitted to the critical care area or who were fallecimiento. FAST result was compared with a true positive or negative value according to the results of laparotomy or abdominal CT. We recorded diagnosis and treatment of each injury and resolution of the case, detailing the cause of death, among all variables. Results: Over the 13–year period, we included 263 trauma patients with pelvic fracture, with a mean ISS of 31 and mortality of 19%. FAST had a sensitivity of 65.2%, specificity of 69%, false negative rate of 34.8% and false positive rate of 30.9%. Hemodynamically unstable patients died twice as many stable patients (27% vs. 14%, p <0.05). Patients with positive FAST died more than negative FAST (43% vs. 26%); and 4 of 10 hemodynamically unstable patients who underwent non therapeutic laparotomy after presenting a false positive FAST died from hypovolemic shock. The mortality rate fell from 60% to 20% when preperitoneal packing was performed before angio-embolization of the pelvis. Conclusion: FAST has low accuracy in polytraumatized patients with pelvic fracture. Patients with false positive FAST have higher mortality, which can be reduce notably applying a preperitoneal packing. (AU)

Consequencies of therapeutic decision-making based on FAST results in trauma patients with pelvic fracture.

INTRODUCTION: FAST is essential to decide whether trauma patients need laparotomy, but it has a notable decrease in accuracy in patients with pelvic fracture. Our objective is to analyze the consequences of therapeutic decision-making based on the FAST results in trauma patients with pelvic fracture. METHODS: Descriptive study that includes trauma patients older than 16 with a pelvic fracture admitted to the critical care area or who died. The FAST result was compared with a true positive or negative value according to the results of laparotomy or abdominal CT. We recorded diagnosis and treatment of each injury and resolution of the case, detailing the cause of death, among all variables. RESULTS: Over the 13-year period, we included 263 trauma patients with pelvic fracture, with a mean ISS of 31 and mortality of 19%. FAST had a sensitivity of 65.2%, specificity of 69%, false negative rate of 34.8% and false positive rate of 30.9%. Hemodynamically unstable patients died twice as many stable patients (27% vs 14%, P < .05). Patients with positive FAST died more than negative FAST (43% vs 26%); and 4 out of 10 hemodynamically unstable patients who underwent non-therapeutic laparotomy after presenting a false positive FAST died from hypovolemic shock. The mortality rate fell from 60% to 20% when preperitoneal packing was performed before angio-embolization of the pelvis. CONCLUSION: FAST has low accuracy in polytraumatized patients with pelvic fracture. Patients with false positive FAST have higher mortality, which can be reduced notably by applying preperitoneal packing.

Aplicación del Shock Index como predictor de hemorragia en el paciente politraumático / The use of the Shock Index as a predictor of active bleeding in trauma patients

INTRODUCCIÓN: Las constantes vitales detectan la presencia de hemorragia al perder grandes cantidades de sangre, lo que comporta una gran morbimortalidad. El Shock Index (SI) es un parámetro que detecta el sangrado con puntos de corte de 0,9. El objetivo de este estudio es valorar si un punto de corte de ≥ 0,8 es más sensible para detectar sangrado oculto, permitiendo iniciar maniobras terapéuticas más precoces. MÉTODOS: Estudio analítico de validación del SI que incluye pacientes politraumatizados graves mayores de 16 años. Se registran constantes vitales y escalas predictivas de sangrado: SI, Assessment of Blood Consumption score y Pulse Rate Over Pressure score. Se analiza la relación del SI con 5 marcadores predictivos de sangrado: necesidad de transfusión masiva, embolización angiográfica, control del sangrado quirúrgico, muerte por shock hipovolémico y "sangrado activo" (presencia de al menos uno de los 4 marcadores anteriores en un paciente). RESULTADOS: Recogida prospectiva de datos de 1.402 pacientes politraumatizados durante 10 años. El Injury Severity Score medio fue de 20,9 (DE 15,8). Hubo una mortalidad del 10%. El SI medio fue de 0,73 (DE 0,29). En total presentaron "sangrado activo" el 18,7% de la serie. El SI medio en los pacientes con "sangrado activo" fue de 0,87, mientras que las constantes vitales estaban dentro de la normalidad. El área bajo la curva ROC del SI para el "sangrado activo" fue de 0,749. CONCLUSIONES: El SI con un punto de corte ≥ 0,8 es más sensible que aquel con el punto de corte ≥ 0,9 y permite iniciar maniobras de reanimación más precoces en los pacientes con sangrado oculto

INTRODUCTION: Vital signs indicate the presence of bleeding only after large amounts of blood have been lost, with high morbidity and mortality. The Shock Index (SI) is a hemorrhage indicator with a cut-off point for the risk of bleeding at 0.9. The aim of this study is to assess whether a cut-off of ≥ 0.8 is more sensitive for detecting occult bleeding, providing for early initiation of therapeutic maneuvers. METHODS: SI analytical validation study of severe trauma patients older than 16 years of age. Vital signs were recorded, and scales for predicting bleeding included: SI, Assessment of Blood Consumption score, and Pulse Rate Over Pressure score. The relationship between the SI and 5 markers for bleeding was analyzed: need for massive transfusion, angiographic embolization, surgical bleeding control, death due to hypovolemic shock, and the overall predictor "active bleeding" (defined as the presence of at least one of the 4 markers above). RESULTS: Data from 1.402 trauma patients were collected prospectively over a period of 10 years. The mean Injury Severity Score was 20.9 (SD 15.8). The mortality rate was 10%. The mean SI was 0.73 (SD 0.29). "Active bleeding" was present in 18.7% of patients. The SI area under the ROC curve for "active bleeding" was 0.749. CONCLUSIONS: An SI cut-off point ≥ 0.8 is more sensitive than ≥ 0.9 and allows for earlier initiation of resuscitation maneuvers in patients with occult active bleeding

The use of the Shock Index as a predictor of active bleeding in trauma patients. / Aplicación del Shock Index como predictor de hemorragia en el paciente politraumático.

INTRODUCTION: Vital signs indicate the presence of bleeding only after large amounts of blood have been lost, with high morbidity and mortality. The Shock Index (SI) is a hemorrhage indicator with a cut-off point for the risk of bleeding at 0.9. The aim of this study is to assess whether a cut-off of≥0.8 is more sensitive for detecting occult bleeding, providing for early initiation of therapeutic maneuvers. METHODS: SI analytical validation study of severe trauma patients older than 16 years of age. Vital signs were recorded, and scales for predicting bleeding included: SI, Assessment of Blood Consumption score, and Pulse Rate Over Pressure score. The relationship between the SI and 5 markers for bleeding was analyzed: need for massive transfusion, angiographic embolization, surgical bleeding control, death due to hypovolemic shock, and the overall predictor «active bleeding¼ (defined as the presence of at least one of the 4 markers above). RESULTS: Data from 1.402 trauma patients were collected prospectively over a period of 10 years. The mean Injury Severity Score was 20.9 (SD 15.8). The mortality rate was 10%. The mean SI was 0.73 (SD 0.29). «Active bleeding¼ was present in 18.7% of patients. The SI area under the ROC curve for «active bleeding¼ was 0.749. CONCLUSIONS: An SI cut-off point≥0.8 is more sensitive than≥0.9 and allows for earlier initiation of resuscitation maneuvers in patients with occult active bleeding.

Embolismo venoso de un proyectil / Venous bullet embolism

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Resultados del tratamiento conservador en pacientes con neumotórax oculto / Results of conservative treatment in patients with occult pneumothorax

INTRODUCCIÓN: Alrededor del 2-15% de los pacientes politraumatizados presentan un neumotórax oculto. La aplicación del tratamiento conservador (observación) en la práctica clínica diaria aún sigue siendo controvertido. Nuestra hipótesis es que es factible realizar un tratamiento conservador. El objetivo de este estudio es evaluar la eficacia y los efectos adversos del tratamiento conservador del neumotórax oculto en nuestro medio. MÉTODOS: Estudio observacional retrospectivo (análisis de base de datos con registro prospectivo) realizado en un hospital universitario de nivel II. Inclusión de 1.087 pacientes politraumatizados mayores de 16 años ingresados en el área de críticos desde 2006 hasta 2013. RESULTADOS: En este periodo, 126 pacientes presentaron neumotórax oculto, en 73 (58%) se decidió observación. En 9 pacientes (12%) fracasó la observación (precisaron colocación de drenaje pleural) por aumento del neumotórax o aparición de hemotórax. De los pacientes observados, 16 fueron ventilados bajo presión positiva. En este grupo fracasó la observación en 3 pacientes (19%). Ningún paciente presentó neumotórax a tensión u otro problema relacionado con la ausencia de drenaje. No hubo diferencias entre grupos (observación vs. drenaje) respecto a mortalidad, estancia hospitalaria ni estancia en la unidad de críticos. CONCLUSIÓN: El tratamiento de elección de los pacientes con neumotórax oculto es la observación clínica. Este tratamiento también es factible en los pacientes ventilados bajo presión positiva

INTRODUCTION: An occult pneumothorax is found in 2-15% trauma patients. Observation (without tube thoracostomy) in these patients presents still some controversies in the clinical practice. The objective of the study is to evaluate the efficacy and the adverse effects when observation is performed. METHODS: A retrospective observational study was undertaken in our center (university hospital level II). Data was obtained from a database with prospective registration. A total of 1087 trauma patients admitted in the intensive care unit from 2006 to 2013 were included. RESULTS: In this period, 126 patients with occult pneumothorax were identified, 73 patients (58%) underwent immediate tube thoracostomy and 53 patients (42%) were observed. Nine patients (12%) failed observation and required tube thoracostomy for pneumothorax progression or hemothorax. No patient developed a tension pneumothorax or experienced another adverse event related to the absence of tube thoracostomy. Of the observed patients 16 were under positive pressure ventilation, in this group 3 patients (19%) failed observation. There were no differences in mortality, hospital length of stay or intensive care length of stay between the observed and non-observed group. CONCLUSION: Observation is a safe treatment in occult pneumothorax, even in pressure positive ventilated patients

Registro prospectivo en politraumatismos graves. Análisis de 1.200 pacientes / Prospective registry of severe polytrauma. Analysis of 1200 patients

INTRODUCCIÓN: El politraumatismo sigue siendo una de las principales causas de muerte entre los 10 y los 40 años, causando graves incapacidades en los pacientes que sobreviven. El objetivo de nuestro estudio es realizar un análisis de calidad de la atención del paciente politraumatizado mediante un estudio epidemiológico. MÉTODO: Registro prospectivo de todos los pacientes politraumáticos atendidos en nuestro hospital, mayores de 16 años, que ingresan en el área de críticos o mueren antes del ingreso. RESULTADOS: Desde marzo del 2006 hasta agosto del 2014, registramos 1.200 politraumatizados. La mayoría fueron hombres (75%), con una mediana de edad de 45 años. El ISS medio fue de 20,9 ± 15,8 y el mecanismo de acción más frecuente fue cerrado (94% casos). La mortalidad global fue del 9,8% (117 casos), siendo la muerte neurológica la principal causa de fallecimiento (45,3%), seguida de la muerte por shock hipovolémico (29,1%). En 17 casos (14,5% fallecimiento) la mortalidad fue considerada como evitable o potencialmente evitable un total de 327 pacientes (27,3%) precisaron de tratamiento quirúrgico urgente y 106 pacientes (8,8%) precisaron de un tratamiento mediante radiología intervencionista de carácter urgente. El 18,5% de los pacientes (222) presentaron alguna lesión inadvertida, con un total de 318 lesiones inadvertidas. CONCLUSIÓN: La atención ofrecida en nuestro centro es correcta. La necesidad de una recogida de datos prospectiva de la atención global a los pacientes politraumatizados es necesaria e imprescindible para poder evaluar la calidad ofrecida y mejorar los resultados

INTRODUCTION: Polytrauma continues to be one of the main causes of death in the population between 10-40 years of age, and causes severe discapability in surviving patients. The aim of this study is to perform an analysis of the quality of care of the polytrauma patient using an epidemiological study. METHOD: Prospective registry of all polytrauma patients treated at our hospital over 16 years of age, admitted to the critical care area or dead before admission. RESULTS: From March 2006 to August 2014, we registered 1200 polytrauma patients. The majority were men (75%) with a median age of 45. The mean ISS was 20,9 ± 15,8 and the most common mechanism of injury was blunt trauma (94% cases), The global mortality rate was 9.8% (117 cases), and neurological death was the most frequent cause (45.3%), followed by hypovolemic shock (29,1%). In 17 cases (14,5% of deaths) mortality was considered evitable or potentially evitable, A total of 327 patients (27.3%) needed emergency surgery and 106 patients (8,8%) needed emergency treatment using interventional radiology. 18,5% of patients (222) presented an inadverted injury, with a total of 318 inadverted injuries. CONCLUSION: Trauma care at our centre is adequate. A prospective registry of the global care of polytrauma patients is necessary to evaluate the quality of care and improve results

[Results of conservative treatment in patients with occult pneumothorax]. / Resultados del tratamiento conservador en pacientes con neumotórax oculto.

INTRODUCTION: An occult pneumothorax is found in 2-15% trauma patients. Observation (without tube thoracostomy) in these patients presents still some controversies in the clinical practice. The objective of the study is to evaluate the efficacy and the adverse effects when observation is performed. METHODS: A retrospective observational study was undertaken in our center (university hospital level II). Data was obtained from a database with prospective registration. A total of 1087 trauma patients admitted in the intensive care unit from 2006 to 2013 were included. RESULTS: In this period, 126 patients with occult pneumothorax were identified, 73 patients (58%) underwent immediate tube thoracostomy and 53 patients (42%) were observed. Nine patients (12%) failed observation and required tube thoracostomy for pneumothorax progression or hemothorax. No patient developed a tension pneumothorax or experienced another adverse event related to the absence of tube thoracostomy. Of the observed patients 16 were under positive pressure ventilation, in this group 3 patients (19%) failed observation. There were no differences in mortality, hospital length of stay or intensive care length of stay between the observed and non-observed group. CONCLUSION: Observation is a safe treatment in occult pneumothorax, even in pressure positive ventilated patients.

Prospective registry of severe polytrauma. Analysis of 1200 patients.

INTRODUCTION: Polytrauma continues to be one of the main causes of death in the population between 10-40 years of age, and causes severe discapability in surviving patients. The aim of this study is to perform an analysis of the quality of care of the polytrauma patient using an epidemiological study. METHOD: Prospective registry of all polytrauma patients treated at our hospital over 16 years of age, admitted to the critical care area or dead before admission. RESULTS: From March 2006 to August 2014, we registered 1200 polytrauma patients. The majority were men (75%) with a median age of 45. The mean ISS was 20,9±15,8 and the most common mechanism of injury was blunt trauma (94% cases), The global mortality rate was 9.8% (117 cases), and neurological death was the most frequent cause (45.3%), followed by hypovolemic shock (29,1%). In 17 cases (14,5% of deaths) mortality was considered evitable or potentially evitable, A total of 327 patients (27.3%) needed emergency surgery and 106 patients (8,8%) needed emergency treatment using interventional radiology. 18,5% of patients (222) presented an inadverted injury, with a total of 318 inadverted injuries. CONCLUSION: Trauma care at our centre is adequate. A prospective registry of the global care of polytrauma patients is necessary to evaluate the quality of care and improve results.

Validación de un modelo de riesgo de evisceración / Validation of abdominal wound dehiscence's risk model

INTRODUCCIÓN: Nuestro trabajo pretende valorar la utilidad del modelo de riesgo de evisceración desarrollado por van Ramshorst et al., y una modificación del mismo, para predecir el riesgo de evisceración entre pacientes operados por laparotomía media. MATERIAL Y MÉTODOS: Estudio observacional, longitudinal y retrospectivo. Muestra: pacientes operados por laparotomía media en la Corporación Sanitaria y Universitaria Parc Taulí (Barcelona), entre el 1 de enero y el 30 de junio del 2010. Variable dependiente: evisceración. Variables independientes principales: los scores de riesgo global y preoperatorio (excluye variables postoperatorias), y las probabilidades de evisceración global y preoperatoria. RESULTADOS: Muestra: 176 pacientes. Eviscerados: 15 (8,5%). La media del score global de riesgo del grupo Evisceración: 4,97 (IC95%: 4,15-5,79) es mayor que la del grupo No evisceración: 3,41 (IC95%: 3,20-3,62), siendo esta diferencia estadísticamente significativa (p < 0,001). La media del score preoperatorio de riesgo del grupo Evisceración: 3,27 (IC95%: 2,69-3,84) es mayor que la del grupo No evisceración: 2,77 (IC95%: 2,64-2,89), siendo esta diferencia estadísticamente significativa (p < 0,05). El score global de riesgo (área bajo la curva ROC: 0,79) tiene mayor capacidad predictiva que el score preoperatorio de riesgo (área bajo la curva ROC: 0,64). DISCUSIÓN: La utilidad del modelo de riesgo desarrollado por van Ramshorst et al. para predecir el riesgo de evisceración, durante el preopeatorio, entre pacientes operados por laparotomía media es limitada. La utilización del score preoperatorio requiere ajustes para mejorar su rendimiento pronóstico

INTRODUCTION: The aim of this study is to determine the usefulness of the risk model developed by van Ramshorst et al., and a modification of the same, to predict the abdominal wound dehiscence's risk in patients who underwent midline laparotomy incisions. MATERIALS AND METHODS: Observational longitudinal retrospective study. Sample: Patients who underwent midline laparotomy incisions in the General and Digestive Surgery Department of the Sabadell's Hospital-Parc Taulí's Health and University Corporation-Barcelona, between January 1, 2010 and June 30, 2010. Dependent variable: Abdominal wound dehiscence. Independent variables: Global risk score, preoperative risk score (postoperative variables were excluded), global and preoperative probabilities of developing abdominal wound dehiscence. RESULTS: Sample: 176 patients. Patients with abdominal wound dehiscence: 15 (8.5%). The global risk score of abdominal wound dehiscence group (mean: 4.97; IC 95%: 4.15-5.79) was better than the global risk score of No abdominal wound dehiscence group (mean: 3.41; IC 95%: 3.20-3.62). This difference is statistically significant (P<.001). The preoperative risk score of abdominal wound dehiscence group (mean: 3.27; IC 95%: 2.69-3.84) was better than the preoperative risk score of No abdominal wound dehiscence group (mean: 2.77; IC 95%: 2.64-2.89), also a statistically significant difference (P<.05). The global risk score (area under the ROC curve: 0.79) has better accuracy than the preoperative risk score (area under the ROC curve: 0.64). CONCLUSION: The risk model developed by van Ramshorst et al. to predict the abdominal wound dehiscence's risk in the preoperative phase has a limited usefulness. Additional refinements in the preoperative risk score are needed to improve its accuracy

[Validation of abdominal wound dehiscence's risk model]. / Validación de un modelo de riesgo de evisceración.

INTRODUCTION: The aim of this study is to determine the usefulness of the risk model developed by van Ramshorst et al., and a modification of the same, to predict the abdominal wound dehiscence's risk in patients who underwent midline laparotomy incisions. MATERIALS AND METHODS: Observational longitudinal retrospective study. SAMPLE: Patients who underwent midline laparotomy incisions in the General and Digestive Surgery Department of the Sabadell's Hospital-Parc Taulí's Health and University Corporation-Barcelona, between January 1, 2010 and June 30, 2010. Dependent variable: Abdominal wound dehiscence. INDEPENDENT VARIABLES: Global risk score, preoperative risk score (postoperative variables were excluded), global and preoperative probabilities of developing abdominal wound dehiscence. SAMPLE: 176 patients. Patients with abdominal wound dehiscence: 15 (8.5%). The global risk score of abdominal wound dehiscence group (mean: 4.97; IC 95%: 4.15-5.79) was better than the global risk score of No abdominal wound dehiscence group (mean: 3.41; IC 95%: 3.20-3.62). This difference is statistically significant (P<.001). The preoperative risk score of abdominal wound dehiscence group (mean: 3.27; IC 95%: 2.69-3.84) was better than the preoperative risk score of No abdominal wound dehiscence group (mean: 2.77; IC 95%: 2.64-2.89), also a statistically significant difference (P<.05). The global risk score (area under the ROC curve: 0.79) has better accuracy than the preoperative risk score (area under the ROC curve: 0.64). CONCLUSION: The risk model developed by van Ramshorst et al. to predict the abdominal wound dehiscence's risk in the preoperative phase has a limited usefulness. Additional refinements in the preoperative risk score are needed to improve its accuracy.

Medición del ácido láctico en pacientes politraumatizados y su utilidad como factor predictor de mortalidad y fallo multiorgánico / Measurement of lactic acid in multiple injury patients and its usefulness as a predictor of multiorgan failure and mortality

Introducción La utilización del ácido láctico como marcador de hipoperfusión oculta y su relación con el fracaso multiorgánico (FMO) y/o la mortalidad están sujetas a debate. Material y método Estudio prospectivo incluyendo pacientes politraumatizados mayores de 16a ingresados en el área de críticos. Se registra el ácido láctico inicial y a las 24h del traumatismo relacionándolo con la morbimortalidad de los pacientes. Resultados Se incluyen en el estudio 342 pacientes con un injury severity score medio de 24,1. Los pacientes que sobreviven tienen un ácido láctico inicial y a las 24h del traumatismo de 27,8 y 17,9 (valores normales inferiores a 22mg/dl), elevándose a 36,5 y 40,2 en los que mueren. No existen diferencias entre el ácido láctico inicial en los pacientes con y sin FMO, elevándose a las 24h en los que presentan FMO (17,8 vs 26,7).Los pacientes con un ácido láctico que empeora o se mantiene patológico en 24h tienen mayor mortalidad que cuando se mantiene bien o mejora (25%-17,1% vs 6,3%-0,8%), aumentando también el porcentaje de pacientes con FMO (40,6%-32,8% vs 14,9%-11,1%).En pacientes hemodinámicamente estables, también existe mayor mortalidad cuando el ácido láctico empeora o se mantiene patológico en las primeras 24h (23,8%-19,2% vs 8,8%-0%), así como mayor porcentaje de FMO (38,1%-26,9% vs 10,9%-7,6%).Conclusiones La evolución del ácido láctico en las primeras 24h del politraumatismo tiene relación con la mortalidad y el FMO, incluso cuando el paciente está hemodinámicamente estable (AU)

Introduction The use of lactic acid as marker of occult hyperfusion and its relationship with multiorgan failure (MOF) and/or mortality is a subject of debate. Material and method A prospective study was conducted on multiple injury patients over 16 years of age in critical care areas. The lactic acid was measured at the beginning and at 24hours of the trauma and associating it with the patient morbidity and mortality. Results A total of 342 patients, with a mean injury severity score of 24.1, were included. The patients who survived had an initial, and 24hours after the trauma, lactic acid of 27.8mg/dl and 17.9mg/dl, respectively, (normal values less than 22mg/dl), increasing to 36.5mg/dl and 40.2mg/dl, respectively, in those who died. There were no differences between the initial lactic acid in patients with and without MOF, being increased at 24hours in those who had MOF (17.8 vs 26.7).The patients with a lactic acid that got worse or remained abnormal at 24hours had a higher mortality than those in which it remained the same or improved (25% - 17.1% vs 6.3% - 0.8%), with the percentage of patients with MOF also increasing (40.6% - 32.8% vs 14.9% - 11.1%).In haemodynamically stable patients, there was also a higher mortality when the lactic acid got worse or remained abnormal in the first 24hours (23.8% - 19.2% vs 8.8% - 0%), as well as a higher percentage of MOF (38.1% - 26.9% vs 10.9% - 7.6%).Conclusions The lactic acid results in the first 24hours of the multiple injury patient are associated with mortality and MOF, even when the patient is haemodynamically stable (AU)

[Measurement of lactic acid in multiple injury patients and its usefulness as a predictor of multiorgan failure and mortality]. / Medición del ácido láctico en pacientes politraumatizados y su utilidad como factor predictor de mortalidad y fallo multiorgánico.

INTRODUCTION: The use of lactic acid as marker of occult hyperfusion and its relationship with multiorgan failure (MOF) and/or mortality is a subject of debate. MATERIAL AND METHOD: A prospective study was conducted on multiple injury patients over 16 years of age in critical care areas. The lactic acid was measured at the beginning and at 24 hours of the trauma and associating it with the patient morbidity and mortality. RESULTS: A total of 342 patients, with a mean injury severity score of 24.1, were included. The patients who survived had an initial, and 24 hours after the trauma, lactic acid of 27.8 mg/dl and 17.9 mg/dl, respectively, (normal values less than 22 mg/dl), increasing to 36.5mg/dl and 40.2mg/dl, respectively, in those who died. There were no differences between the initial lactic acid in patients with and without MOF, being increased at 24 hours in those who had MOF (17.8 vs 26.7). The patients with a lactic acid that got worse or remained abnormal at 24 hours had a higher mortality than those in which it remained the same or improved (25% - 17.1% vs 6.3% - 0.8%), with the percentage of patients with MOF also increasing (40.6% - 32.8% vs 14.9% - 11.1%). In haemodynamically stable patients, there was also a higher mortality when the lactic acid got worse or remained abnormal in the first 24 hours (23.8% - 19.2% vs 8.8% - 0%), as well as a higher percentage of MOF (38.1% - 26.9% vs 10.9% - 7.6%). CONCLUSIONS: The lactic acid results in the first 24 hours of the multiple injury patient are associated with mortality and MOF, even when the patient is haemodynamically stable.

Abscesos esplénicos múltiples / Multiple splenic abscesses

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