Identificación de las caracteristicas más relevantes para la predicción de infecciones de sitio quirúrgico en pacientes intervenidos de artroplastia de cadera / Feature selection for the prediction of surgical site infections in patients undergoing hip arthroplasty

Objetivo: Seleccionar las características más relevantes a la hora de predecir una infección de sitio quirúrgico en un paciente sometido a intervención de artroplastia de cadera. Método: Se ha utilizado un método de selección de características basado en Información Mutua (IM) para determinar las variables que mejor predicen la infección de sitio quirúrgico (ISQ) en una cohorte prospectiva de pacientes operados de artroplastia de cadera en el Hospital Universitario Ramón y Cajal entre los años 2010 y 2020. Resultados: La característica más importante para la predicción fue el tiempo postoperatorio (0,98 valor de IM). Todas las ISQ ocurrieron tras el primer ingreso. Conclusiones: Los resultados obtenidos ponen en valor las técnicas de aprendizaje automático para tomar medidas organizativas que reduzcan los días de estancia, y así prevenir la aparición de ISQ, disminuir los costes del proceso clínico y aumentar la seguridad del paciente.(AU)

Objective: Select the most relevant characteristics to predict a surgical site infection in a patient undergoing hip arthroplasty. Methods: Mutual information (MI) method is used to select the characteristics that better predict Surgical Site Infection (SSI) in a prospective cohort of patients who underwent hip arthroplasty between 2010 and 2020 at the Ramón y Cajal University Hospital. Results: The most important characteristic to predict SSI was postoperative time (0.98 MI score). All SSIs occurred after the first admission. Conclusion: The results obtained highlight the value of machine learning techniques to take organizational measures that reduce the days of stay, and thus prevent the appearance of SSIs, reduce the costs of the clinical process and increase patient safety.(AU)

Utilización de recursos hospitalarios en pacientes con infección/colonización por Enterobacterias Productoras de Carbapenemasas / Utilization of hospital resources in patients with carbapenemase-producing enterobacteriaceae infection or colonization

Objetivo: Describir la casuística de los pacientes con cultivo positivo para Enterobacterias Productoras de Carbapenemasas (EPC), la complejidad de sus patologías y el consumo de recursos hospitalarios. Método: Estudio observacional retrospectivo en pacientes con diagnóstico de infección/colonización por EPC (2013-2018) en el Hospital Universitario Fundación Alcorcón. Estudio descriptivo de los pacientes y análisis de los recursos consumidos utilizando los Grupos de Diagnóstico Relacionado y la estancia media (EM). Resultados: Se analizan 119 pacientes con edad media de 76,9 años, siendo la localización más frecuente en orina (58,8%) y la carbapenemasa más habitual en enterobacterias la OXA-48 (79,8%). La EM de estos pacientes y el peso medio (PM) fue significativamente superior al de las altas hospitalarias en este período (p<0,05). Conclusiones: Los pacientes que asocian un diagnóstico de EPC incrementan el consumo de recursos hospitalarios triplicando los días de estancia y la complejidad del proceso atendido (aumento del 50% en el PM).(AU)

Objective: Describe case-mix of patients with positive culture for Carbapenemase-Producing Enterobacteriaceae (CPE), complexity of their pathologies and hospital resources consumption. Method: Retrospective observational study in patients with diagnosis of CPE infection/colonization (2013-2018) at Alcorcon University Hospital Foundation. Patient descriptive study and resource consumption analysis using Diagnosis Related Groups (DRG ́s) and mean length of stay (LOS). Results: 119 patients were analyzed. The average age was 76.9 years, the most frequent location was urine (58.8%) and OXA-48 the most common carbapenemase in the enterobacteriaceae (79.8%). The mean LOS of these patients and the DRG relative weight was higher than the patients treated during this period (p<0.05). Conclusions: Patients with diagnosis of CPE associate a greater consumption of hospital resources tripling the LOS and increasing 50% relative weight of DRG.(AU)

Percepción de los médicos hospitalarios sobre los equipos de soporte de atención paliativa domiciliaria / Hospital medical doctors perception on palliative home care support team

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Incidencia y evolución de las cardiopatías congénitas en España durante 10 años (2003-2012) / Incidence and evolution of congenital heart disease in Spain from 2003 until 2012

INTRODUCCIÓN Y OBJETIVOS: Las cardiopatías congénitas (CC) son las malformaciones congénitas más frecuentes. En España no hay datos de su incidencia a nivel nacional. El objetivo del estudio es analizar la incidencia y evolución de las CC en España. MÉTODOS: Estudio observacional retrospectivo utilizando el conjunto mínimo básico de datos durante 10 años (2003-2012), en menores de un año, seleccionando las altas hospitalarias con códigos de CC (Clasificación Internacional de Enfermedades, 9.a revisión, modificación clínica). Se describió la evolución anual de la incidencia acumulada y su distribución geográfica, y se analizó mediante riesgos relativos de incidencia y razón de incidencias estandarizadas por comunidad autónoma. RESULTADOS: Durante el periodo analizado 64.831 menores de un año fueron diagnosticados de CC al alta hospitalaria sobre 4.766.325 nacimientos con una incidencia del 13,6‰. La incidencia excluyendo la comunicación interauricular fue del 7,29‰. Los códigos más frecuentes fueron: comunicación interauricular (6,31‰), comunicación interventricular (3,48‰), ductus arteriosus persistente (2,71‰), coartación de aorta (0,55‰), estenosis pulmonar (0,50‰), trasposición de grandes vasos (0,49‰), canal auriculoventricular (0,45‰) y tetralogía de Fallot (0,41‰). La distribución geográfica de las cardiopatías graves y muy graves no resultó uniforme presentando Castilla y León junto con Extremadura la mayor incidencia, y Madrid y Cantabria la menor. CONCLUSIONES: Durante el tiempo de estudio se observa un aumento de cardiopatías leves que puede estar influido por la mejora de las técnicas diagnósticas, el uso extendido de la ecocardiografía y la propia codificación Clasificación Internacional de Enfermedades, 9.a revisión, modificación clínica y una disminución de las cardiopatías muy graves cuyo análisis presenta mayor validez al estar menos influido por factores externos. La incidencia de cardiopatías graves y muy graves no fue uniforme en España

INTRODUCTION AND OBJECTIVES: Congenital heart disease (CHD) represents the most common congenital malformation. The objective of this study was to analyse the incidence of CHD in Spain, and it is the first nationwide study so far. METHODS: A retrospective observational study was performed in order to evaluate the incidence of CHD in Spain. The administrative database (minimum basic data set) from 2003 to 2012 was analysed in children less than one year old admitted to hospital with codes of CHD (International Classification of Diseases, 9 th Revision, clinical modification). Cumulative incidence, Incidence relative risk, and standardised incidence ratio were calculated to study geographic variations. RESULTS: There were 64,831 infants with CHD among the 4,766,325 births analysed during the period studied, with an incidence of 13.6‰. The incidence excluding atrial septal defect was 7.29 ‰.The most frequent CHD were atrial septal defect (6.31‰), ventricular septal defect (3.48‰), patent ductus arteriosus (2.71‰), coarctation of the aorta (0.55‰), pulmonary stenosis (0.50‰), transposition of the great arteries (0.49‰), atrioventricular septal defect (0.45‰), and tetralogy of Fallot (0.41‰). Castilla and Leon, together with Extremadura, showed the highest risks for severe and very severe CHD, while Madrid and Cantabria showed the lowest. CONCLUSIONS: An increase of mild CHD was observed during the period analysed. This could have been influenced by improvements in diagnostic techniques, extended use of echocardiography, and the International Classification of Diseases, 9 th Revision, clinical modification coding system, and to a decrease in very severe CHD, which is less influenced by external factors. Significant geographical differences were found in the incidence of severe and very severe CHD

Mortalidad de las cardiopatías congénitas en España durante 10 años (2003-2012) / Congenital heart disease mortality in Spain during a 10 year period (2003-2012)

Introducción y objetivos: Las cardiopatías congénitas suponen una de las principales causas de mortalidad infantil en países desarrollados. En España no hay publicaciones sobre mortalidad de las cardiopatías congénitas a nivel nacional. El objetivo del estudio es determinar la tasa de mortalidad infantil de las cardiopatías congénitas, así como la letalidad de las distintas cardiopatías, durante un periodo de 10 años. Material y métodos: Estudio observacional retrospectivo utilizando el conjunto mínimo básico de datos de 2003 a 2012 en niños ingresados con diagnóstico de cardiopatía congénita. Se realiza un análisis descriptivo de los pacientes y se calcula la tasa de mortalidad y los riesgos relativos de mortalidad mediante regresión de Poisson. Resultados: Fallecieron 2.970 menores de un año sobre una población de 64.831 pacientes con cardiopatías congénitas (4,58%). El 73,8% fallecieron la primera semana de vida. La tasa de mortalidad infantil en niños con cardiopatías congénitas fue de 6,23 por 10.000 nacidos vivos, cifra que se mantuvo constante a lo largo de los 10 años estudiados y que supone el 18% de la mortalidad infantil total. Las cardiopatías con mayor letalidad fueron el síndrome del corazón izquierdo hipoplásico (41,4%), la interrupción del arco aórtico (20%) y el drenaje venoso pulmonar anómalo total (16,8%), y las de menor letalidad la comunicación interauricular (1%) y la estenosis pulmonar (1,1%). Conclusiones: Las cardiopatías congénitas constituyen una causa importante de mortalidad infantil, que no ha presentado variaciones importantes durante el tiempo de estudio. La proporción de niños que fallecen es similar a la de los países de nuestro entorno. Pese a los actuales avances, algunas cardiopatías presentan letalidad elevada

Introduction and objectives: Congenital heart disease is a major cause of infant mortality in developed countries. In Spain, there are no publications at national level on mortality due to congenital heart disease. The aim of this study is to analyse mortality in infants with congenital heart disease, lethality of different types of congenital heart disease, and their variation over a ten-year period. Methods: A retrospective observational study was performed to evaluate mortality rate of children under one year old with congenital heart disease, using the minimum basic data set, from 2003 to 2012. Mortality rate and relative risk of mortality were estimated by Poisson regression. Results: There were 2,970 (4.58%) infant deaths in a population of 64,831 patients with congenital heart disease, with 73.8% of deaths occurring during first week of life. Infant mortality rate in patients with congenital heart disease was 6.23 per 10,000 live births, and remained constant during the ten-year period of the study, representing 18% of total infant mortality rate in Spain. The congenital heart diseases with highest mortality rates were hypoplastic left heart syndrome (41.4%), interruption of aortic arch (20%), and total anomalous pulmonary drainage (16.8%). Atrial septal defect (1%) and pulmonary stenosis (1.1%) showed the lowest mortality rate. Conclusions: Congenital heart disease was a major cause of infant mortality with no variations during the study period. The proportion of infants who died in our study was similar to other similar countries. In spite of current medical advances, some forms of congenital heart disease show very high mortality rates

[Incidence and evolution of congenital heart disease in Spain from 2003 until 2012]. / Incidencia y evolución de las cardiopatías congénitas en España durante 10 años (2003-2012).

INTRODUCTION AND OBJECTIVES: Congenital heart disease (CHD) represents the most common congenital malformation. The objective of this study was to analyse the incidence of CHD in Spain, and it is the first nationwide study so far. METHODS: A retrospective observational study was performed in order to evaluate the incidence of CHD in Spain. The administrative database (minimum basic data set) from 2003 to 2012 was analysed in children less than one year old admitted to hospital with codes of CHD (International Classification of Diseases, 9th Revision, clinical modification). Cumulative incidence, Incidence relative risk, and standardised incidence ratio were calculated to study geographic variations. RESULTS: There were 64,831 infants with CHD among the 4,766,325 births analysed during the period studied, with an incidence of 13.6‰. The incidence excluding atrial septal defect was 7.29 ‰.The most frequent CHD were atrial septal defect (6.31‰), ventricular septal defect (3.48‰), patent ductus arteriosus (2.71‰), coarctation of the aorta (0.55‰), pulmonary stenosis (0.50‰), transposition of the great arteries (0.49‰), atrioventricular septal defect (0.45‰), and tetralogy of Fallot (0.41‰). Castilla and Leon, together with Extremadura, showed the highest risks for severe and very severe CHD, while Madrid and Cantabria showed the lowest. CONCLUSIONS: An increase of mild CHD was observed during the period analysed. This could have been influenced by improvements in diagnostic techniques, extended use of echocardiography, and the International Classification of Diseases, 9th Revision, clinical modification coding system, and to a decrease in very severe CHD, which is less influenced by external factors. Significant geographical differences were found in the incidence of severe and very severe CHD.

[Congenital heart disease mortality in Spain during a 10 year period (2003-2012)]. / Mortalidad de las cardiopatías congénitas en España durante 10 años (2003-2012).

INTRODUCTION AND OBJECTIVES: Congenital heart disease is a major cause of infant mortality in developed countries. In Spain, there are no publications at national level on mortality due to congenital heart disease. The aim of this study is to analyse mortality in infants with congenital heart disease, lethality of different types of congenital heart disease, and their variation over a ten-year period. METHODS: A retrospective observational study was performed to evaluate mortality rate of children under one year old with congenital heart disease, using the minimum basic data set, from 2003 to 2012. Mortality rate and relative risk of mortality were estimated by Poisson regression. RESULTS: There were 2,970 (4.58%) infant deaths in a population of 64,831 patients with congenital heart disease, with 73.8% of deaths occurring during first week of life. Infant mortality rate in patients with congenital heart disease was 6.23 per 10,000 live births, and remained constant during the ten-year period of the study, representing 18% of total infant mortality rate in Spain. The congenital heart diseases with highest mortality rates were hypoplastic left heart syndrome (41.4%), interruption of aortic arch (20%), and total anomalous pulmonary drainage (16.8%). Atrial septal defect (1%) and pulmonary stenosis (1.1%) showed the lowest mortality rate. CONCLUSIONS: Congenital heart disease was a major cause of infant mortality with no variations during the study period. The proportion of infants who died in our study was similar to other similar countries. In spite of current medical advances, some forms of congenital heart disease show very high mortality rates.

Validity of clinical diagnosis in dermatology.

OBJECTIVE: We evaluated the accuracy of the clinical diagnostic process performed by dermatologists. MATERIAL AND METHODS: We conducted a cross-sectional study, based on a retrospective search of data at a dermatology outpatient department. Fifteen skin diseases were selected. A group of patients with those diseases at their first outpatient visit and a further histopathological study were included. The accuracy of any given clinical diagnosis was studied taking the histopathological diagnosis as the gold standard. Validity indices were calculated. RESULTS: We studied 2188 patients. Skin diseases were more prevalent among women (p < 0.05). While the clinical diagnostic process displayed a high level of validity in melanocytic naevi and basal cell carcinoma, a poor level was nevertheless observed for Bowen's disease (sensitivity 22.8%, specificity 96.5%). The most frequent sites of appearance of dermatological problems were face and trunk. CONCLUSIONS: Evaluation of diagnosis in pathologies having an available "gold standard" enables the accuracy of clinical diagnoses to be verified. The validity of clinical diagnosis was high.