Actitudes asociadas a las prácticas de inyección de riesgo en personas que se inyectan drogas en Palma de Mallorca / Attitudes associated with risky injection practices in people who inject drugs in Palma de Mallorca

El objetivo de este estudio fue explorar las actitudes de las personas que se inyectan drogas (PID) y realizan prácticas de inyección de riesgo, identificando los factores subyacentes a su discurso que sustentan esas actitudes. Se planteó una investigación cualitativa con un diseño de grupos de discusión con PID (n = 34) y entrevistas a expertos(as) (n = 3). Los grupos y entrevistas fueron grabados, transcritos y analizados bajo el enfoque de la teoría fundamentada y el método del análisis temático. Se identificaron 17 categorías de riesgo, agrupadas en seis dimensiones: Consumo de drogas, Conocimiento, Confianza en otras personas, Acceso a jeringuillas nuevas, Situación personal y Azar. Estas dimensiones modularían la magnitud de las actitudes hacia las distintas prácticas de inyección de riesgo o actuarían como barreras que socavan la intención de las PID de inyectarse de manera segura. El discurso analizado sugiere que muchas PID han desarrollado actitudes poco negativas, neutras o incluso positivas hacia algunas prácticas de inyección de riesgo, principalmente hacia su realización en situaciones determinadas y aun conociendo las consecuencias negativas que estas entrañan. Proponer una descripción diferenciada de las actitudes asociadas a las prácticas de inyección de riesgo no sólo contribuye a profundizar en su explicación, sino que permitirá una mayor adecuación de los programas preventivos a las necesidades específicas de las PID. (AU)

The goal of this study was to explore the attitudes of people who inject drugs (PWID) and carry out risky practices, identifying underlying factors in their speech that sustain those attitudes. We proposed a qualitative research design with PWID focus groups (n = 34) and interviews with experts (n = 3). The interviews were recorded, transcribed, and analyzed following the principles of grounded theory and thematic analysis methodology. A total of 17 risk categories were identified and grouped into six dimensions: Drug Consumption, Knowledge, Trust In Other People, Access To Unused Syringues, Personal Situation, and Random. These dimensions would modulate the magnitude of the attitudes towards the different risky injection practices or act as barriers that limit the intention of PWID to inject themselves in a safe way. The analysis of the narratives suggests that many PWID have developed slightly negative, neutral, or even positive attitudes towards some risky injection practices, mainly towards carrying them out in certain situations and even when knowing of their negative consequences. Characterizing the attitudes associated with risky injection practices not only contributes to understanding them more thoroughly but will also allow preventive programs to be better suited to the specific needs of PWID. (AU)

Attitudes associated with risky injection practices in people who inject drugs in Palma de Mallorca. / Actitudes asociadas a las prácticas de inyección de riesgo en personas que se inyectan drogas en Palma de Mallorca.

The goal of this study was to explore the attitudes of people who inject drugs (PWID) and carry out risky practices, identifying underlying factors in their speech that sustain those attitudes. We proposed a qualitative research design with PWID focus groups (n = 34) and interviews with experts (n = 3). The interviews were recorded, transcribed, and analyzed following the principles of grounded theory and thematic analysis methodology. A total of 17 risk categories were identified and grouped into six dimensions: Drug Consumption, Knowledge, Trust In Other People, Access To Unused Syringues, Personal Situation, and Random. These dimensions would modulate the magnitude of the attitudes towards the different risky injection practices or act as barriers that limit the intention of PWID to inject themselves in a safe way. The analysis of the narratives suggests that many PWID have developed slightly negative, neutral, or even positive attitudes towards some risky injection practices, mainly towards carrying them out in certain situations and even when knowing of their negative consequences. Characterizing the attitudes associated with risky injection practices not only contributes to understanding them more thoroughly but will also allow preventive programs to be better suited to the specific needs of PWID.

El objetivo de este estudio fue explorar las actitudes de las personas que se inyectan drogas (PID) y realizan prácticas de inyección de riesgo, identificando los factores subyacentes a su discurso que sustentan esas actitudes. Se planteó una investigación cualitativa con un diseño de grupos de discusión con PID (n = 34) y entrevistas a expertos(as) (n = 3). Los grupos y entrevistas fueron grabados, transcritos y analizados bajo el enfoque de la teoría fundamentada y el método del análisis temático. Se identificaron 17 categorías de riesgo, agrupadas en seis dimensiones: Consumo de drogas, Conocimiento, Confianza en otras personas, Acceso a jeringuillas nuevas, Situación personal y Azar. Estas dimensiones modularían la magnitud de las actitudes hacia las distintas prácticas de inyección de riesgo o actuarían como barreras que socavan la intención de las PID de inyectarse de manera segura. El discurso analizado sugiere que muchas PID han desarrollado actitudes poco negativas, neutras o incluso positivas hacia algunas prácticas de inyección de riesgo, principalmente hacia su realización en situaciones determinadas y aun conociendo las consecuencias negativas que estas entrañan. Proponer una descripción diferenciada de las actitudes asociadas a las prácticas de inyección de riesgo no sólo contribuye a profundizar en su explicación, sino que permitirá una mayor adecuación de los programas preventivos a las necesidades específicas de las PID.

Monitoring PHB production in Synechocystis sp. with hyperspectral images.

Microalgae wastewater treatment systems have the potential for producing added-value products. More specifically, cyanobacteria are able to accumulate polyhydroxybutyrates (PHBs), which can be extracted and used for bioplastics production. Nonetheless, PHB production requires proper culture conditions and continue monitoring, challenging the state-of-the-art technologies. The aim of this study was to investigate the application of hyperspectral technologies to monitor cyanobacteria population growth and PHB production. We have established a ground-breaking measurement method able to discern spectral reflectance changes from light emitted to cyanobacteria in different phases. All in all, enabling to distinguish between cyanobacteria growth phase and PHB accumulation phase. Furthermore, first tests of classification algorithms used for machine learning and image recognition technologies had been applied to automatically recognize the different cyanobacteria species from a complex microbial community containing cyanobacteria and microalgae cultivated in pilot-scale photobioreactors (PBRs). We have defined three main indicators for monitoring PHB production: (i) cyanobacteria specific-strain density, (ii) differentiate between growth and PHB-accumulation and (iii) chlorosis progression. The results presented in this study represent an interesting alternative for traditional measurements in cyanobacteria PHB production and its application in pilot-scale PBRs. Although not directly determining the amount of PHB production, they would give insights on the undergoing processes.

La contemporización biliar percutánea como estrategia en el tratamiento de la lesión quirúrgica de la vía biliar / Percutaneous biliary interventon as an inital treatment for injury of the bile duct

Antecedentes: El drenaje biliar percutáneo (DBP) se ha utlizado para tratar lesiones quirúrgicas de la vía biliar y como complemento de la cirugía de reparación. Objetivo: Presentar los resultados del drenaje biliar percutáneo en una serie consecutiva de pacientes con lesiones quirúrgicas o secuelas de reparaciones quirúrgicas de la vía biliar. Material y Métodos: Se analizaron los pacientes tratados inicialmente mediante DBP. Se utlizó la cla-sificación de Strasberg y se registró: tpo de operación, vía de abordaje, número de reintervenciones, intentos de reparación biliar y presentación clínica. En los pacientes con continuidad bilioentérica, la primera opción fue el tratamiento percutáneo. Se evaluó el DBP en el pre, intra y postoperatorio y pre dilatación percutánea Resultados: En el hospital Argerich, período 2000 a 2014, se incluyeron 76 enfermos, 68.4% mujeres y post colecistectomía 97%. El 77,6% fueron lesiones Tipo E2 a E5. El porcentaje de enfermos con control de síntomas pre cirugía o dilatación percutánea fue: ictericia 59%, colestasis 5%, colangits 91%, fistula biliar 87%, prurito 90%, retro del hepaticostoma o Kehr 91%. En 13 de 16 pacientes con fistula biliar externa se internalizó el catéter biliar a la cavidad abdominal. En el 70% de 52 pacientes operados, el catéter facilitó la identificación de la vía biliar proximal. En el postoperatorio, no hubo fistulas biliares de la anastomosis bilioentérica, y se detectaron 3 pacientes con estenosis biliar residual y 2 con segmentos biliares aislados que fueron tratados. Conclusión: El DBP resulta útl en el preoperatorio, intraoperatorio y postoperatorio de los pacientes con lesiones quirúrgicas biliares.

Background: Percutaneous biliary drainage (PtibD) has been used to treat surgical bile duct injuries and as an adjunct to repair surgery. Objective: To present the results of PtidB in a consecutive series of patents with surgical injuries or sequelae of surgical repairs of the bile duct. Material and methods: Patents initally treated with PtibD were analyzed. Strasberg classificaton was used and recorded: type of operaton, surgical approach, number of reoperatons, biliary repair atempts and clinical presentaton. In patents with bilioenteric continuity, percutaneous biliary treatment was the frst opton. PtibD was evaluated in the pre, intra and postoperative period and in the pre dilataton period. Results: At the Hospital Argerich, from 2000 to 2014, 76 patents were included, 68.4% women and 97% post cholecystectomy. The lesions were Type E2 to E5 in 77% of cases. The percentage of patents with controlled symptoms before surgery or percutaneous dilataton was: jaundice 59%, cholestasis 5%, cholangits 91%, biliary fistula 87%, pruritus 90%, withdrawal hepaticos-toma or T-Kehr 91%. In 13 of 16 patents with external biliary fistula, the catheter could be internalized to abdominal cavity. In 70% of 52 operated patents, the catheter facilitated the identificaton of the proximal biliary duct. In the postoperative period, there were no biliary fistulas of the bilioenteric anastomoses and 3 patents with residual biliary stenosis and 2 with isolated biliary segments were detected and treated. Conclusion: PtibD is helpful in the pre, intra and postoperative treatment of patents with surgical bile duct injuries.

Schloffer's tumor: Case report and review of the literature.

INTRODUCTION: The so-called Schloffer tumor (ST) is a rare inflammatory pseudotumor. It usually appears several years after abdominal surgery or trauma. PRESENTATION OF CASE: A 32-year-old man was referred to our hospital complaining of a painful mass in the left hypochondrium, postprandial distension and a weight loss of about 14kg. He had had a left inguinal hernioplasty without mesh the previous year. Ultrasonography of the abdomen showed a 2cm×2cm hypoechoic lesion in contact with the abdominal wall. Computerized tomography of the abdomen showed a heterogeneous mass in the great omentum. Laparoscopic exploration revealed an omental mass firmly attached to the abdominal wall. A great deal of purulent fluid spread during the procedure. Due to the difficult exploration, the procedure converted to hand assisted laparoscopy. We find an omental tumor involving the stomach and the transverse colon. Inside the mass there were purulent material and non-absorbable sutures. A drain was left inside the cavity of the abscess. Histological examination showed chronic inflammation. DISCUSSION: ST characteristically presents a central chronic abscess containing non-absorbable sutures. It has been described after appendectomy, hernioplasty, hysterectomy, gastrectomy or colonic resections. Although benign, its progressive growth and infiltrating behavior resemble malignant tumors. CONCLUSION: We suggest that a mini-invasive approach should always be performed. The interesting thing about this case is the appearance of the tumor in a place far away from the previous surgical site. A simple drainage and removal of suture material solves the problem of these patients.

Factores asociados con el éxito académico de los estudiantes de medicina de la Universidad de Buenos Aires

El objetivo fue identificar los factores asociados al éxito académico de los estudiantes de medicina distinguidos con diploma de honor por la Universidad de Buenos Aires. En 2011 se aplicó un cuestionario a 142 graduados con esta distinción en el 2006 que incluyó 59 preguntas sobre aspectos sociodemográficos, condiciones de vida e integración social, motivación para el estudio, capacidad de aprendizaje y estado de salud durante la carrera. En comparación con los demás alumnos, los exitosos habitaban más frecuentemente en la ciudad, provenían de escuelas medias privadas o universitarias, tenían menor necesidad de trabajar para financiarse, casi todos eran solteros y sin hijos, una proporción mayor vivía lejos de su familia, tenían más progenitores profesionales y eran financiados por ellos; nunca consideraron la salida laboral para elegir la carrera, para ellos era importante alcanzar el éxito y éste dependía principalmente del esfuerzo propio; solían manejar la ansiedad, eran sociables aunque independientes y preferían la experiencia concreta a la conceptualización abstracta para adquirir información. Con el actual sistema de ingreso, estos resultados sirven para cuantificar los mecanismos latentes de autoselección durante la carrera o en un régimen restrictivo, para seleccionar los candidatos a alcanzar el éxito académico. El análisis de los factores demográficos indica algún grado de inequidad para los estudiantes menos favorecidos socialmente. Quizás, un sistema de ingreso basado solo en las capacidades intelectuales, ayudaría a individualizar y apoyar a los mejores candidatos, independientemente de su contexto social.

The aim of this study was to identify common factors relating to the academic success of medical students who were distinguished with honors at the Buenos Aires University. In 2011, 142 graduates were surveyed; the questionnaire included 59 questions on their sociodemographic environment, living conditions and social integration, motivation to study, learning capacity and health quality during their career. Compared to other students, these distinguished students more often lived in the city, far from their families; had been educated at private or universitary high schools, their economic needs were financed by their parents, who were on the whole professionals. Most of them were single and childless. The possibility of future employment oportunities (work) did not influence their choice of a medical career, academic success was important to them and they believed that success depended largely on personal effort; they knew how to handle anxiety, were sociable but independent and preferred solid experience to abstract conceptuality in order to obtain information. Our conclusion, within the current system of candidate selection, these results serve to calculate the covert self-selection mechanisms during the career, or in a more restrictive regime, to select those likely to reach academic success due to their privileged ambience. The analysis of demographic factors indicates some degree of inequality for socially disadvantaged students. Perhaps, a selection system based only on intellectual abilities would help identify and support the best candidates regardless of their social context.

Colecistts xantogranulomatosa / Xantogranulomatous cholecystts

Antecedentes: la colecistts xantogranulomatosa es una enfermedad infamatoria con destrucción de la pared vesicular, cuya prevalencia oscila entre el 0.7 y 13,2% de las colecistectomías. Objetvos: analizar la incidencia, forma de presentación y resultados del tratamiento de esta patología en un Centro de Cirugía HPB de la Ciudad de Buenos Aires. Lugar de aplicación: Departamento de Cirugía HIGA Dr. Cosme Argerich. Diseño: retrospectvo Población: colecistectomías realizadas en el HIGA Argerich, entre abril de 2008 y abril de 2010. Método: análisis histopatológico de las piezas de colecistectomía. Estratificación de la presentación clínica en formas incidentales o pseudotumorales. Análisis de las complicaciones intraoperatorias y posoperatorias, estadía hospitalaria y mortalidad. Resultados: de 815 colecistectomías videolaparoscópicas 32 (3,9%) fueron colecistts xantogranulo-matosas. Dieciocho fueron hombres y 14 mujeres. Edad media 40,6 años. Los pacientes se evaluaron por ecografa y en las formas pseudotumorales se agregó una tic abdominal. Veintsiete fueron formas incidentales y 5 pseudotumorales. El tempo operatorio promedio fue de 114 minutos y no hubo conversiones. Dos bilirragias intraoperatorias se controlaron en las formas pseudotumorales y una bilirragia y 2 pseudoaneurismas rotos de la arteria hepática fueron reoperados en las formas incidentales. La estadía posoperatoria promedio fue de 2,6 días. Conclusión: la colecistts xantogranulomatosa puede presentarse como un proceso infamatorio habitual o remedar un cáncer de vesícula. Las imágenes son imprescindibles para el diagnóstico diferencial. Fueron más frecuentes las complicaciones intraoperatorias en las formas pseudotumo-rales y las posoperatorias en las incidentales. El cirujano debe conocer esta entdad y sus eventuales complicaciones.

[Factors associated with academic success of medical students at Buenos Aires University]. / Factores asociados con el éxito académico de los estudiantes de medicina de la Universidad de Buenos Aires.

The aim of this study was to identify common factors relating to the academic success of medical students who were distinguished with honors at the Buenos Aires University. In 2011, 142 graduates were surveyed; the questionnaire included 59 questions on their sociodemographic environment, living conditions and social integration, motivation to study, learning capacity and health quality during their career. Compared to other students, these distinguished students more often lived in the city, far from their families; had been educated at private or universitary high schools, their economic needs were financed by their parents, who were on the whole professionals. Most of them were single and childless. The possibility of future employment oportunities (work) did not influence their choice of a medical career, academic success was important to them and they believed that success depended largely on personal effort; they knew how to handle anxiety, were sociable but independent and preferred solid experience to abstract conceptuality in order to obtain information. Our conclusion, within the current system of candidate selection, these results serve to calculate the covert self-selection mechanisms during the career, or in a more restrictive regime, to select those likely to reach academic success due to their privileged ambience. The analysis of demographic factors indicates some degree of inequality for socially disadvantaged students. Perhaps, a selection system based only on intellectual abilities would help identify and support the best candidates regardless of their social context.

Factores asociados con el éxito académico de los estudiantes de medicina de la Universidad de Buenos Aires. / [Factors associated with academic success of medical students at Buenos Aires University].

The aim of this study was to identify common factors relating to the academic success of medical students who were distinguished with honors at the Buenos Aires University. In 2011, 142 graduates were surveyed; the questionnaire included 59 questions on their sociodemographic environment, living conditions and social integration, motivation to study, learning capacity and health quality during their career. Compared to other students, these distinguished students more often lived in the city, far from their families; had been educated at private or universitary high schools, their economic needs were financed by their parents, who were on the whole professionals. Most of them were single and childless. The possibility of future employment oportunities (work) did not influence their choice of a medical career, academic success was important to them and they believed that success depended largely on personal effort; they knew how to handle anxiety, were sociable but independent and preferred solid experience to abstract conceptuality in order to obtain information. Our conclusion, within the current system of candidate selection, these results serve to calculate the covert self-selection mechanisms during the career, or in a more restrictive regime, to select those likely to reach academic success due to their privileged ambience. The analysis of demographic factors indicates some degree of inequality for socially disadvantaged students. Perhaps, a selection system based only on intellectual abilities would help identify and support the best candidates regardless of their social context.

Early oral feeding versus traditional postoperative care after abdominal emergency surgery: a randomized controlled trial.

BACKGROUND: Early oral feeding (EOF) has been demonstrated to be safe and beneficial after abdominal elective surgery. The aim of this randomized controlled trial is to assess the safety and benefits of EOF compared to traditional postoperative care (TPC) after abdominal emergency surgery. METHODS: Patients assigned to the EOF group commenced a soft diet within 24 h after surgery. In the TPC group, a liquid diet was commenced upon passage of flatus or stool and then advanced to soft food. The primary endpoint was the complication rate. Secondary endpoints were severity of complications, mortality, gastrointestinal leaks, surgical-site infection, reoperation, diet intolerance, time to first flatus and stool, amount of food intake, postoperative discomfort, hospital stay, weight loss at the 15th postoperative day and incisional hernias. RESULTS: A total of 295 patients assigned to EOF (n = 148) or TPC (n = 147) were analyzed. No significant differences were seen in the complications rates (EOF 45.3 % vs. TPC 37.4 %; p = 0.1). There was a significantly higher rate of vomiting with EOF (EOF 13.5 % vs. TPC 6.1 %; p = 0.03), with no differences in nasogastric tube reinsertion. EOF patients' food intake was proportionally lower for the first three meals than that of TPC patients (p < 0.01). Postoperative discomfort survey revealed more hunger in the TPC group (p < 0.01). There were no differences in postoperative ileus or length of hospital stay. CONCLUSIONS: EOF was safe after abdominal emergency surgery. EOF was associated with more vomiting (treated easily and without patient discomfort) and less hunger than with TPC. No other EOF-related benefits could be demonstrated during this trial.

Fibroma desmoplásico del hueso / Bone desmoplastic fibroma

Se presentó un caso de un fibroma desmoplásico en una adolescente de 14 años de edad. Se realizó estudio radiográfico que reveló lesión osteolítica diafisometafisaria extensa en fémur derecho. El objetivo fue mostrar una tumoración con poca frecuencia estadística en la bibliografía nacional e internacional y mostrar el proceder y tratamiento definitivo. El estudio histológico corroboró presencia de abundantes fibras colágenas, que formaban bandas hialinizadas separadas por escasos fibroblastos de tamaño pequeño sin actividad mitótica. Se realizó curetaje de la lesión con inserción de cemento quirúrgico. La paciente tuvo una evolución posquirúrgica satisfactoria con incorporación inmediata al medio social

This is the case of a desmoplastic fibroma present in an adolescent aged 14. A radiographic study was conducted showing an extensive osteolytic diaphysis and metaphyseal lesion in right femur. The objective of present paper was to present a tumor with little statistic frequency in the national and international bibliography and also to show the procedure and definitive treatment. The histological study corroborates the presence of abundant collagen fibers forming hyalinization strips separated by scarce small fibroblasts without mitosis activity. Curettage of lesion was performed with insertion of surgical cement. Patient had a satisfactory postsurgical course with an immediate incorporation to social environment

Fibroma desmoplásico del hueso / Bone desmoplastic fibroma

Se presentó un caso de un fibroma desmoplásico en una adolescente de 14 años de edad. Se realizó estudio radiográfico que reveló lesión osteolítica diafisometafisaria extensa en fémur derecho. El objetivo fue mostrar una tumoración con poca frecuencia estadística en la bibliografía nacional e internacional y mostrar el proceder y tratamiento definitivo. El estudio histológico corroboró presencia de abundantes fibras colágenas, que formaban bandas hialinizadas separadas por escasos fibroblastos de tamaño pequeño sin actividad mitótica. Se realizó curetaje de la lesión con inserción de cemento quirúrgico. La paciente tuvo una evolución posquirúrgica satisfactoria con incorporación inmediata al medio social(AU)

This is the case of a desmoplastic fibroma present in an adolescent aged 14. A radiographic study was conducted showing an extensive osteolytic diaphysis and metaphyseal lesion in right femur. The objective of present paper was to present a tumor with little statistic frequency in the national and international bibliography and also to show the procedure and definitive treatment. The histological study corroborates the presence of abundant collagen fibers forming hyalinization strips separated by scarce small fibroblasts without mitosis activity. Curettage of lesion was performed with insertion of surgical cement. Patient had a satisfactory postsurgical course with an immediate incorporation to social environment(AU)

Minimally invasive management of acute biliary tract disease during pregnancy.

BACKGROUND: Acute biliary diseases during pregnancy have been classically managed conservatively. Advances in minimally invasive surgery and the high recurrence rate of symptoms observed changed this management. METHODS: This is a prospective observational study. Initial management was medical. Unresponsive patients were treated with minimally invasive techniques including gallbladder percutaneous aspiration or cholecystostomy, endoscopic retrograde cholangiography, and laparoscopic cholecystectomy, depending on the pregnancy trimester and underlying diagnosis. RESULTS: 122 patients were admitted. 69 (56.5%) were unresponsive to medical treatment. Recurrent gallbladder colic was the most frequent indication for minimally invasive intervention, followed by acute cholecystitis, choledocholithiasis, and acute biliary pancreatitis. 8 patients were treated during the first trimester, 54 during the second, and 7 during the last trimester. There was no fetal morbidity or mortality. Maternal morbidity was minor with no mortality. CONCLUSION: Acute biliary tract diseases during pregnancy may be safely treated with minimally invasive procedures according to the underlying diagnosis and to the trimester of pregnancy.

Bile duct cyst type V (Caroli's disease): surgical strategy and results.

BACKGROUND: Caroli's disease (CD) is a benign congenital disorder characterized by segmental cystic dilatation of the intrahepatic biliary ducts. Therapeutic strategy includes medical treatment, percutaneous, endoscopic or surgical drainage of the affected bile ducts, liver resection or transplantation. The aim of this study was to analyse the results and long-term follow-up of a consecutive series of patients who underwent surgical treatment for CD. PATIENTS AND METHODS: Between 1995 and 2005, 10 patients were surgically treated for CD. Variables evaluated were: age, gender, clinical presentation, diagnostic procedures, percutaneous and surgical treatments, histopathological analysis and outcome. RESULTS: The average age of the patients was 45.8 years. Recurrent cholangitis was the main clinical manifestation (70%). In unilateral CD a liver resection was performed in nine patients (left lateral sectionectomy in seven, left hepatectomy in one and right hepatectomy in one). In bilateral disease a cholecystectomy, duct exploration, hepaticojejunostomy and liver biopsy of both lobes were performed. Average follow-up was 60 months. All the patients are alive and free of symptoms without recurrence in the remnant liver. DISCUSSION: Liver resection is the preferred therapeutic option for unilateral CD, demonstrating good results in long-term follow-up. In bilateral disease, hepaticojejunostomy could be considered as an alternative or a previous step to liver transplantation, which still remains the ultimate option.

Superioridad de los signos clínicos sobre los morfológicos en el pronóstico de mortalidad por necrosis pancreática infectada / Ranson clinical signs and inflammatory response in mortality prognostic by infected necrotic pancreatic lessions

Antecedentes: El pronóstico de la infección pancreática es controvertido. En la bibliografía actual predomina la idea que su mortalidad está en relación directa con la extensión de las lesiones necróticas. Objetivo: Comparar el valor para el pronóstico de mortalidad por necrosis infectada de los signos de Ranson con la extensión de la necrosis glandular pancreática. Lugar de aplicación: Hospital público de alta complejidad. Diseño: Análisis retrospectivo de una serie consecutiva de pacientes. Población: En 36 enfermos operados por necrosis infectada se evaluó la gravedad clínica al ingreso mediante los signos de Ranson y la extensión de la necrosis glandular mediante una tomografía computada dinámica, realizada más de una semana después del comienzo del ataque. Resultados: En los pacientes con más del 30 por ciento de necrosis glandular, la mortalidad por infección pancreática fue significativamente mayor (p < 0,001) en el grupo que presentaba más de 5 signos pronósticos al ingreso. Conclusiones: A igual extensión de necrosis glandular, la magnitud de la respuesta inflamatoria temprana es el principal determinante de la mortalidad por necrosis infectada. Su evaluación al comienzo del ataque mediante signos clínicos es esencial para el pronóstico y tratamiento de la pancreatitis aguda

Superioridad de los signos clínicos sobre los morfológicos en el pronóstico de mortalidad por necrosis pancreática infectada / Ranson clinical signs and inflammatory response in mortality prognostic by infected necrotic pancreatic lessions

Antecedentes: El pronóstico de la infección pancreática es controvertido. En la bibliografía actual predomina la idea que su mortalidad está en relación directa con la extensión de las lesiones necróticas. Objetivo: Comparar el valor para el pronóstico de mortalidad por necrosis infectada de los signos de Ranson con la extensión de la necrosis glandular pancreática. Lugar de aplicación: Hospital público de alta complejidad. Diseño: Análisis retrospectivo de una serie consecutiva de pacientes. Población: En 36 enfermos operados por necrosis infectada se evaluó la gravedad clínica al ingreso mediante los signos de Ranson y la extensión de la necrosis glandular mediante una tomografía computada dinámica, realizada más de una semana después del comienzo del ataque. Resultados: En los pacientes con más del 30 por ciento de necrosis glandular, la mortalidad por infección pancreática fue significativamente mayor (p < 0,001) en el grupo que presentaba más de 5 signos pronósticos al ingreso. Conclusiones: A igual extensión de necrosis glandular, la magnitud de la respuesta inflamatoria temprana es el principal determinante de la mortalidad por necrosis infectada. Su evaluación al comienzo del ataque mediante signos clínicos es esencial para el pronóstico y tratamiento de la pancreatitis aguda (AU)

Anastomosis pancreático yeyunal ducto-mucosa: resultados inmediatos / Duct-to-mucosa pancreaticojejunal anastomosis

Antecedentes: Los dos objetivos más importantes de la anastomosis pancreaticointestinal luego de la resección de la cabeza de páncreas son evitar la fístula pancreática y preservar la suficiencia exocrina del páncreas. Estudios experimentales indican que la anastomosis que mejor preserva la suficiencia exocrina del páncreas es la pancreaticoyeyunoanastomosis ducto-mucosa. Sin embargo, es considerada una anastomosis difícil o contraindicada en conductos de Wirsung no dilatados. Objetivo: Investigar la factibilidad de la anastomosis pancreaticoyeyunal-ducto-mucosa en una serie consecutiva de pacientes. Lugar de aplicación: Centro terciario de referencia. Diseño: Estudio clínico longitudinal prospectivo. Población: Consecutiva de 20 pacientes en quienes se extirpó la cabeza de páncreas. Métodos: Se determinó la textura del páncreas y diámetro del conducto de Wirsung, previamente a la anastomosis pancreaticoyeyunal ducto-mucosa terminolateral en dos planos. Se evaluó la morbimortalidad postoperatoria. Resultados: La incidencia de fístula fue de 15 por ciento. En muñón pancreático blando y Wirsung no dilatados la incidencia de fístula pancreática fue mayor (20 por ciento) que en los páncreas duros con Wirsung dilatados (10 por ciento), aunque no significativa (p = 1). La morbilidad fue de 30 por ciento, ningún paciente requirió reoperación y no se registró mortalidad en la serie. Conclusiones: Es factible realizar la anastomosis pancreaticoyeyunal en forma segura en cualquier paciente, independientemente de la textura del muñón pancreático y el tamaño del Wirsung