Características clínicas de reanimações cardiopulmonares intra-hospitalares registradas em prontuário: estudo transversal / Clinical characteristics of in-hospital cardiopulmonary resuscitations recorded in medical records: a cross-sectional study / Características clínicas de las reanimaciones cardiopulmonares intrahospitalarias registradas en las historias clínicas: estudio transversal

Objetivo: identificar características clínicas das paradas cardiopulmonares e reanimações cardiopulmonares ocorridas em ambiente intra-hospitalar. Método: estudo quantitativo, prospectivo e observacional, a partir de informações de prontuários de pacientes submetidos a manobras de reanimação devido à parada cardiopulmonar entre janeiro e dezembro de 2021. Utilizou-se um instrumento baseado nas variáveis do modelo de registro Utstein. Resultados: em 12 meses foram registradas 37 paradas cardiopulmonares. A maioria ocorreu na unidade de terapia intensiva respiratória, com causa clínica mais prevalente hipóxia. 65% dos pacientes foram intubados no atendimento e 57% apresentaram ritmo atividade elétrica sem pulso. A duração da reanimação variou entre menos de cinco a mais de 20 minutos. Como desfecho imediato, 57% sobreviveram. Conclusão: dentre os registros analisados, a maior ocorrência de paradas cardiopulmonares foi na unidade de terapia intensiva respiratória, relacionada à Covid-19. Foram encontrados registros incompletos e ausência de padronização nas condutas.

Objective: identify the clinical characteristics of cardiopulmonary arrests and cardiopulmonary resuscitations in the in-hospital environment. Method: this is a quantitative, prospective and observational study based on information from the medical records of patients who underwent resuscitation maneuvers due to cardiopulmonary arrest between January and December 2021. An instrument based on the variables of the Utstein registration protocol was used. Results: thirty-seven cardiopulmonary arrests were recorded in 12 months. The majority occurred in a respiratory intensive care unit, with hypoxia being the most prevalent clinical cause. Sixty-five percent of the patients were intubated and 57% had pulseless electrical activity. The duration of resuscitation ranged from less than five to more than 20 min. As for the immediate outcome, 57% survived. Conclusion: among the records analyzed, the highest occurrence of cardiopulmonary arrests was in respiratory intensive care units, and they were related to Covid-19. Moreover, incomplete records and a lack of standardization in cardiopulmonary resuscitation procedures were found.

Objetivo: Identificar las características clínicas de paros cardiopulmonares y reanimaciones cardiopulmonares que ocurren en un ambiente hospitalario. Método: estudio cuantitativo, prospectivo y observacional, realizado a partir de información presente en historias clínicas de pacientes sometidos a maniobras de reanimación por paro cardiorrespiratorio entre enero y diciembre de 2021. Se utilizó un instrumento basado en las variables del modelo de registro Utstein. Resultados: en 12 meses se registraron 37 paros cardiopulmonares. La mayoría ocurrió en la unidad de cuidados intensivos respiratorios, la causa clínica más prevalente fue la hipoxia. El 65% de los pacientes fue intubado durante la atención y el 57% presentaba un ritmo de actividad eléctrica sin pulso. La duración de la reanimación varió entre menos de cinco y más de 20 minutos. Como resultado inmediato, el 57% sobrevivió. Conclusión: entre los registros analizados, la mayor cantidad de paros cardiopulmonares se dio en la unidad de cuidados intensivos respiratorios, relacionada con Covid-19. Se encontraron registros incompletos y falta de estandarización en el procedimiento.

Efectividad de un programa de capacitación intensiva en reanimación cardiopulmonar y uso del desfibrilador externo automático entre representantes de centros de concurrencia masiva en Asunción 2023

Introducción: La capacitación en reanimación cardiopulmonar (RCP) y uso correcto del desfibrilador externo automático (DEA) permite la intervención de los ciudadanos legos en situaciones de paro cardíaco extrahospitalario (PCEH). En Paraguay, la Ley n° 5.578/2016 establece el uso obligatorio del DEA en centros de concurrencia masiva (CCM). Objetivo: Evaluar la efectividad de un programa de capacitación intensiva en reanimación cardiopulmonar y uso del desfibrilador externo automático entre representantes de centros de concurrencia masiva en Asunción julio-setiembre 2023. Metodología: Estudio cuasiexperimental antes/después en representantes de CCM (Universidades, Shoppings, Clubes sociales/deportivos Gimnasios, Consecionario Automotríz, Complejos residenciales y Supermercados). Se obtuvieron datos de universidades del Ministerio de Educación y Ciencias, de fuentes municipales y la Cámara de Comercio. Se capacitó entre 1-3 representantes/CCM mediante talleres teórico-práctico sobre RCP básico y uso correcto del DEA en PCEH con un cuestionario validado (alfa de Cronbach: 0,75). Se compararon datos con χ² y prueba t o U de Mann-Whitney (p-valor significativo =<0,05). Resultados: De 194 participantes, la edad meda fue; 29±5años; el 60,31% (117) del sexo masculino, 38,65%(70) representantes de shoppings, 60,82% (118) tenian formación universitaria, y el 45,36% (88) se desempeñaban en atención al cliente. El 59, 228% (115) no habia recibido capacitación en RCP anteriormente y el 86,08% (167) tampoco tenia entrenamiento en uso del DEA. Se pudo observar una diferencia estadisticamente significativa entre la puntaje antes y después, observandose una diferencia de 4,791 1,012 puntos (p=0,0001). Discusión: El programa de capacitación intensiva es efectivo para elevar el nivel de conocimiento y práctica en RCP básica y uso del DEA entre representantes legos de CCM.

Introduction: Training in cardiopulmonary resuscitation (CPR) and correct use of the automated external defibrillator (AED) allows the intervention of lay citizens in situations of out-of-hospital cardiac arrest (EHPA). In Paraguay, Law No. 5,578/2016 establishes the mandatory use of the AED in mass attendance centers (CCM). Methodology: quasi-experimental before/after study in CCM representatives (Universities, shopping malls, Social/Sports Clubs, Gyms, Automotive Dealership, Residential Complexes and Supermarkets). Data were obtained from universities of the Ministry of Education and Sciences, municipal sources, and the Chamber of Commerce. Between 1-3 representatives/MCCs were trained through theoretical-practical workshops on basic CPR and correct use of the AED in HCWP with a validated questionnaire (Cronbach's alpha: 0.75). Data were compared with χ² and Mann-Whitney t-test or U test (p-significant value =<0.05). Results: Of 194 participants, the mean age was 29±5; 60.31% (117) were male, 38.65% (70) were shopping mall representatives, 60.82% (118) had a university education, and 45.36% (88) worked in customer service. 59.228% (115) had not previously received CPR training and 86.08% (167) had no AED training. A statistically significant difference was observed between the before and after score, with a difference of 4.791(1.012 points (p=0.0001). Discussion: The intensive training program is effective in raising the level of knowledge and practice in basic CPR and AED use among lay CCM representatives.

Cardiomyopathy in a nutshell: from etiopathogenesis and diagnosis to treatment

Cardiomyopathy is defined as a heterogeneous group of myocardial disorders wherein the cardiac muscle is functionally and structurally abnormal, without the presence of any congenital heart disease (CHD), coronary artery disease (CAD), valvular disease, and hypertension sufficient enough to lead to abnormality of the myocardium. Based on etiology, cardiomyopathies are classified into primary (acquired, mixed, or genetic) and secondary, which results in different phenotypes like hypertrophic, restrictive, dilated, etc. patterns. Hypertrophic cardiomyopathy is the most common type of primary cardiomyopathy among all cardiomyopathies usually presenting as exertional dyspnea, heart failure, atypical chest pain, syncope, and sudden cardiac death (SCD). Dilated cardiomyopathy is genetic or acquired, causing classic symptoms of heart failure with reduced ejection fraction. Restrictive cardiomyopathy is mostly associated with systemic disease and is rare. Diagnosis of cardiomyopathy includes a detailed evaluation of history, and physical examination followed by a workup including blood test, genetic testing, electrocardiography, and echocardiography testing. Treatment includes initially staging the therapy for heart failure, restriction of physical activity, evaluation of the need for implantable cardioverter-defibrillators, optimization of drugs, and consideration of heart transplantation in refractory cases. Genetic testing of families is now available as an emerging modality for early diagnosis and prevention in relatives of diagnosed cases. This review evaluates the causes, early diagnosis, and early treatment and prevention modalities for cardiomyopathies to reduce morbidity and mortality caused by it.

Characteristics of the out-of-hospital cardiac arrest attended by the medical emergency services in Medellín. A population-based retrospective cohort study / Características del paro cardiaco extrahospitalario atendido por operadores de ambulancias en Medellín. Estudio de cohorte retrospectivo de base poblacional

Abstract Introduction: Every year, five million people around the world experience an out-of-hospital cardiac arrest (OHCA) and less than 40 % receive any assistance before the arrival of the Emergency Medical Services (EMS). Ambulance operators (AO) take care of people experiencing an OHCA, stabilize and then transfer them. In Medellín, Colombia, there is a public AO and several private providers, but the information about an OHCA and the operational characteristics during the response to the event are limited. Objective: To estimate the incidence of OHCA and to explore the factors associated with survival after the event in Medellín city. Methods: Retrospective, population-based cohort study. All the medical records of patients experiencing an OHCA who were assessed and treated by ambulance operators, (AO) of the Emergency Medical Services (EMS) and private agencies in Medellin city were reviewed. Descriptive statistics were used for data analysis and the annual incidence of the event standardized for the general population was estimated. Potential survival-associated factors reported as OR with their corresponding 95% CI were explored. Results: A total of 1,447 patient records with OHCA between 2018 and 2019 were analyzed. The event incidence rate for the number of cases assessed was 28.1 (95 % CI 26.0-30.3) and 26.9 (95 % CI 24.929.1) cases per 100,000 inhabitants/year for 2018 and 2019, respectively; the incidence rate of treated OHCA was 2.6 (95 % CI 2.0-3.3) and 3.2 (95 % CI 2.5-4.0) per 100,000 inhabitants/year, for 2018 and 2019. Survival on arrival at hospitals of treated cases was 14.2 % (95 % CI 5.5-22.8) and 15.5 % (95 % CI 7.4-23.5) for 2018 and 2019, respectively. Conclusions: This study portrays the operating and care characteristics of the population experiencing OHCA in Medellín city. The incidence rate of the event and the survival were lower than those reported in the literature.

Resumen Introducción: Cada año, cinco millones de personas en el mundo presentan paro cardiaco prehospitalario (PCEH), de los cuales menos del 40 % reciben ayuda antes de la llegada de los sistemas de emergencia médica (SEM). Los operadores de ambulancias (OA) atienden a los que sufren un PCEH, su estabilización y posterior traslado. En Medellín, Colombia, existe un OA público y agencias privadas, pero la información acerca del PCEH y las características operacionales durante la respuesta a este evento es escasa. Objetivo: Estimar la incidencia del PCEH y explorar factores asociados a la supervivencia del evento en la ciudad de Medellín. Métodos: Estudio de cohorte retrospectivo de base poblacional. Se revisaron todos los registros médicos de pacientes que presentaron un PCEH que fueron evaluados y tratados por OA del SEM y de agencias privadas de Medellín. Se usaron estadísticos descriptivos para los datos y se estimó la incidencia anual del evento estandarizada para la población general. Se exploraron posibles factores asociados a la supervivencia, reportados como OR con su respectivos IC 95 %. Resultados: Se analizaron 1.447 registros de pacientes con PCEH presentados entre 2018 y 2019. La tasa de incidencia del evento para los casos evaluados fue de 28,1 (IC 95 % 26,0-30,3) y 26,9 (IC 95 % 24,9-29,1) casos por 100.000 habitantes/año, para 2018 y 2019, respectivamente; la tasa de incidencia del PCEH tratado fue de 2,6 (IC 95 % 2,0-3,3) y 3,2 (IC 95 % 2,5-4,0) por 100.000 habitantes/año, para 2018 y 2019. La supervivencia a la llegada a los hospitales de los casos tratados fue 14,2 % (IC 95 % 5,5-22,8) y del 15,5 % (IC 95 % 7,4-23,5) para 2018 y 2019, respectivamente. Conclusiones: Se muestra las características operativas y de atención de la población que presenta un PCEH en Medellín. La tasa de incidencia del evento y la supervivencia fueron menores a las reportadas en la literatura.

Out of hospital cardiac arrest, first steps to know and follow in Mexico to have cardioprotected territories. A point of view of a group of experts / Paro cardiaco extrahospitalario, primeros pasos que se deben conocer y hacer en México para tener espacios cardioprotegidos. Punto de vista de un grupo de expertos

Abstract Sudden cardiac death is a common occurrence. Out-of-hospital cardiac arrest is a global public health problem suffered by ≈3.8 million people annually. Progress has been made in the knowledge of this disease, its prevention, and treatment; however, most events occur in people without a previous diagnosis of heart disease. Due to its multifactorial and complex nature, it represents a challenge in public health, so it led us to work in a consensus to achieve the implementation of cardioprotected areas in Mexico as a priority mechanism to treat these events. Public access cardiopulmonary resuscitation (CPR) and early defibrillation require training of non-medical personnel, who are usually the first responders in the chain of survival. They should be able to establish a basic and efficient CPR and use of the automatic external defibrillator (AED) until the emergency services arrive at the scene of the incident. Some of the current problems in Mexico and alternative solutions for them are addressed in the present work.

Resumen La muerte súbita cardíaca (SCD) es un acontecimiento común. El paro cardiaco extrahospitalario (OHCA) es un problema de salud pública mundial que sufren ≈3.8 millones de personas al año. Se ha avanzado en el conocimiento de esta enfermedad, su prevención y tratamiento, sin embargo, la mayoría de los eventos se producen en personas sin diagnóstico previo de cardiopatía. Debido a su carácter multifactorial y complejo, representa un reto en salud pública, lo que obliga a trabajar en un consenso para lograr la implementación de "Espacios Cardio protegidos" en México, como mecanismo prioritario de atención a estos eventos. La reanimación cardiopulmonar básica (RCPB) y la desfibrilación temprana de acceso público requieren de entrenamiento al personal no médico, que suelen ser los primeros respondientes para iniciar la cadena de la supervivencia. Ellos deberían instaurar una RCPB eficiente y el uso del desfibrilador automático externo (AED) hasta que lleguen al lugar del incidente los servicios de emergencias. El presente trabajo menciona algunos de los problemas actuales en México y algunas opciones de solución para los mismos.

Manejo de la vía aérea ante un caso de paro respiratorio en un escenario clínico simulado. Experiencia en una residencia de pediatría / Airway management during a respiratory arrest in a clinical simulation scenario. Experience at a pediatric residency program

Introducción. La insuficiencia respiratoria es la causa más común de paro cardíaco en pediatría; su reconocimiento y el manejo adecuado son cruciales. La simulación se utiliza para mejorar las habilidades médicas. El objetivo del trabajo fue determinar la proporción de residentes de pediatría que reconocieron un paro respiratorio (PR) pediátrico en un centro de simulación. Métodos. Se realizó un estudio observacional con 77 médicos residentes. Se utilizó un caso simulado de un paciente con dificultad respiratoria que progresa a PR. Resultados. De los 77 participantes, 48 reconocieron el paro respiratorio (62,3 %). El tiempo medio para reconocer el PR fue de 34,43 segundos. Conclusión. El 62,3 % de los participantes logró reconocer el paro respiratorio. Entre aquellos que lo identificaron, el tiempo promedio fue de 34,43 segundos. Se observaron graves deficiencias en algunas de las intervenciones esperadas.

Introduction. Respiratory failure is the most common cause of cardiac arrest in pediatrics. Recognizing and managing it adequately is critical. Simulation is used to improve medical skills. The objective of this study was to establish the proportion of pediatric residents who recognized a respiratory arrest in a child at a simulation center. Methods. This was an observational study in 77 residents. A simulation of a patient with respiratory distress that progressed to respiratory arrest was used. Results. Among the 77 participants, 48 recognized respiratory arrest (62.3%). The mean time to recognize respiratory arrest was 34.43 seconds. Conclusion. Respiratory arrest was recognized by 62.3% of participants. Among those who did so, the average time was 34.43 seconds. Severe failures were noted in some of the expected interventions.

Competências para o atendimento multiprofissional da PCR em pediatria: percepções da equipe de enfermagem / Skills for multiprofissional care for cardiorespiratory arrests in pediatrics: perceptions of the nursing team / Habilidades para el cuidadod multiprofesional de las paradas cardiorrespiratorias en pediatria: percepciones del equipo de enfermería

Estudo exploratório descritivo, quantitativo, realizado em um hospital pediátrico filantrópico, com objetivo de compreender as competências profissionais da enfermagem no atendimento da parada cardiorrespiratória em pediatria, além de investigar suas percepções. Participaram 30 profissionais da equipe de enfermagem e a coleta de dados foi realizada por meio de um questionário fechado. Os resultados, analisados por meio de estatística descritiva, mostraram que os profissionais de enfermagem, em sua maioria, apresentaram conhecimento sobre o atendimento da emergência investigada. Em relação às suas percepções sobre as habilidades técnicas necessárias, notou-se que a maioria dos participantes se perceberam seguros para as manobras de ressuscitação e para a administração de medicações durante o atendimento; contudo, ao abordar o manuseio do desfibrilador e a realização de punção venosa, a maior parte da amostra afirmou não se sentir totalmente segura para estas atividades. Concluiu-se que a maioria dos participantes apresentam conhecimento teórico-prático para a execução do atendimento.

Descriptive, quantitative exploratory study, carried out in a philanthropic pediatric hospital, with the objective of understanding the nursing professional competencies in the care of cardiorespiratory arrests in pediatrics, besides investigating. 30 professionals from the nursing team participated and data was collected using a closed questionnaire. The results, analyzed using descriptive statistics, showed that the majority of nursing professionals had knowledge about the care of the investigated emergency. In relation to their perceptions about the necessary technical skills, the majority of participants perceived themselves to be confident in resuscitation maneuvers and the administration of medications during care. However, when approaching the handling of the defibrillator and performing a venipuncture, most of the sample stated that they did not feel complete confidence for these activities. Study concluded that the majority of participants had theoretical-practical knowledge to perform the service.

Estudio exploratorio descriptivo, cuantitativo, realizado en un hospital pediátrico filantrópico, con el objetivo de comprender las competencias profesionales de enfermería en el cuidado de la parada cardiorrespiratoria en pediatría, además de investigar sus percepciones. Participaron 30 profesionales del equipo de enfermería y la recolección de datos se realizó mediante cuestionario cerrado. Los resultados, analizados mediante estadística descriptiva, mostraron que la mayoría de los profesionales de enfermeira tenían conocimiento sobre la atención de la emergencia investigada. En relación a sus percepciones sobre las habilidades técnicas necesarias, se observa que la mayoría de los participantes se observó que la mayoría de los participantes se percibió confiada en las maniobras de reanimación y la administración de medicamentos durante la atención. Sin embargo, al abordar el manejo del desfibrilador y realizar una punción venosa, la mayoría de la muestra manifestó no sentirse completamente segura para estas actividades. Estudio concluyó que la mayoría de los participantes presentó conocimientos teórico-prácticos para realizar el servicio.

Causas Múltiplas de Morte Associadas à Parada Cardiorrespiratória Pediátrica de 1996 a 2019 no Brasil / Multiple Causes of Death Associated with Pediatric Cardiopulmonary Arrest from 1996 to 2019 in Brazil

Resumo Fundamento: Em pediatria, a parada cardiorrespiratória (PCR) está associada a alta mortalidade e graves sequelas neurológicas. Informações sobre as causas e mecanismos de morte abaixo de 20 anos poderiam fornecer subsídios teóricos para a melhoria da saúde de crianças e adolescentes. Objetivos: Realizar uma análise populacional das taxas de mortalidade por causas primárias e múltiplas de morte abaixo de 20 anos, em ambos os sexos, no período de 1996 a 2019, no Brasil, e identificar a frequência com que a PCR foi registrada nas declarações de óbito (DOs) desses indivíduos e os locais de ocorrência dos óbitos, a fim de promover estratégias para melhorar a prevenção de mortes. Método: Estudo ecológico de séries temporais de óbitos em indivíduos menores de 20 anos, no período de 1996 a 2019, avaliando as taxas de mortalidade (TMs) e a mortalidade proporcional (MP) por causa básica de morte. Foram analisados os percentuais de PCR registrados em qualquer linha da DO e o local de ocorrência dos óbitos. Foram calculadas as TMs por 100 mil habitantes e a MP por causa básica de morte nos menores de 20 anos segundo sexo e faixa etária, os percentuais de óbito por causas básicas por faixa etária quando a PCR foi descrita em qualquer linha das Partes I e II da DO, e o percentual de óbitos por causas básicas segundo o local de ocorrência. Os dados foram retirados do DATASUS, IBGE e SINASC. Resultados: De 1996 a 2019, ocorreram 2.151.716 óbitos de menores de 20 anos, no Brasil, gerando uma taxa de mortalidade de 134,38 por 100 mil habitantes. A taxa de óbito foi maior entre os recém-nascidos do sexo masculino. Do total de óbitos, 249.334 (11,6%) tiveram PCR registrada em qualquer linha da DO. Especificamente, a PCR foi registrada 49.178 vezes na DO na faixa etária entre 1 e 4 anos e em 88.116 vezes entre 29 e 365 dias, correspondendo, respectivamente, a 26% e 22% dos óbitos nessas faixas etárias. Essas duas faixas etárias apresentaram as maiores taxas de PCR registradas em qualquer linha da DO. As principais causas básicas de óbito quando a PCR foi registrada na sequência de óbitos foram doenças respiratórias, hematológicas e neoplásicas. Conclusão: As causas perinatais e externas foram as principais causas de morte, com maior TM nos menores de 20 anos no Brasil de 1996 a 2019. Quando consideradas as causas múltiplas de morte, as principais causas primárias associadas à PCR foram as doenças respiratórias, hematológicas e neoplásicas. A maioria dos óbitos ocorreu no ambiente hospitalar. Melhor compreensão da sequência de eventos nesses óbitos e melhorias nas estratégias de ensino em ressuscitação cardiopulmonar pediátrica são necessárias.

Abstract Background: In pediatrics, cardiopulmonary arrest (CPA) is associated with high mortality and severe neurologic sequelae. Information on the causes and mechanisms of death below the age of 20 years could provide theoretical support for health improvement among children and adolescents. Objectives: To conduct a population analysis of mortality rates due to primary and multiple causes of death below the age of 20 years in both sexes from 1996 to 2019 in Brazil, and identify the frequency in which CPA was recorded in the death certificates (DCs) of these individuals and the locations where the deaths occurred, in order to promote strategies to improve the prevention of deaths. Method: Ecological time-series study of deaths below the age of 20 years from 1996 to 2019, evaluating the mortality rates (MRs) and proportional mortality (PM) by primary cause of death. We analyzed the percentages of CPA recorded in any line of the DC and the location where the deaths occurred. We calculated the MRs per 100,000 inhabitants and the PM by primary cause of death under the age of 20 years according to sex and age group, the percentages of death from primary causes by age group when CPA was described in any line of Parts I and II of the DC, and the percentage of deaths from primary causes according to their location of occurrence. We retrieved the data from DATASUS, IBGE, and SINASC. Results: From 1996 to 2019, there were 2,151,716 deaths below the age of 20 years in Brazil, yielding a mortality rate of 134.38 per 100,000 inhabitants. The death rate was highest among male neonates. Of all deaths, 249,334 (11.6%) had CPA recorded in any line of the DC. Specifically, CPA was recorded in 49,178 DCs between the ages of 1 and 4 years and in 88,116 of those between the ages of 29 and 365 days, corresponding, respectively, to 26% and 22% of the deaths in these age groups. These two age groups had the highest rates of CPA recorded in any line of the DC. The main primary causes of death when CPA was recorded in the sequence of death were respiratory, hematologic, and neoplastic diseases. Conclusion: Perinatal and external causes were the primary causes of death, with highest MRs under the age of 20 years in Brazil from 1996 to 2019. When multiple causes of death were considered, the main primary causes associated with CPA were respiratory, hematologic, and neoplastic diseases. Most deaths occurred in the hospital environment. Better understanding of the sequence of events in these deaths and improvements in teaching strategies in pediatric cardiopulmonary resuscitation are needed.

Ayudas cognitivas en quirófano. Experiencia del Departamento de Anestesia en el Centro Médico ABC / Cognitive aids in the operating room. Experience of the Anesthesia Department at ABC Medical Center

Resumen: Los manuales de emergencia desarrollados a partir de las ayudas cognitivas son componente esencial dentro de la sala de operaciones para el manejo oportuno de crisis, con la ventaja de disminuir los errores por omisión. El propósito de esta redacción fue retomar la experiencia mundial actualizada con los mismos y compararla con la del Centro Médico ABC. El proceso de recolección de datos se hizo mediante una encuesta a través de Google Forms; los datos obtenidos de la encuesta se convirtieron en porcentajes y se usaron para resumir las variables categóricas. Los resultados mostraron que la mayoría de los médicos tenían conocimiento de esta herramienta en quirófano y más de la mitad en efecto lo utilizaron en situaciones críticas. Las situaciones más descritas fueron: broncoespasmo, choque anafiláctico y sospecha de hipertermia maligna.

Abstract: The emergency manuals based on cognitive aids are an essential component within the operating room for timely crisis management, with the advantage of reducing errors due to omission. The purpose of this writing was to resume the current world experience with them and compare it with the ABC Medical Center. The data obtained from the survey were converted into percentages and used to summarize the categorical variables. The results showed that most doctors were aware of this tool in the operating room and more than a half actually used it in critical situations. The most described situations were: bronchospasm, anaphylactic shock and suspicion of malignant hyperthermia.

Epidemiología y resultados del paro cardiorrespiratorio pediátrico en la unidad de recuperación cardiovascular de un hospital público en Argentina / Epidemiology and outcomes of pediatric cardiac arrest in a cardiovascular unit at a public hospital in Argentina

Resumen Antecedentes: Los niños con cardiopatías congénitas experimentan paro cardiorrespiratorio (PCR) con mayor frecuencia que la población pediátrica general. Se desconoce la epidemiología exacta del PCR en nuestro medio, al igual que el riesgo de mortalidad y los factores que influyen en la evolución neurológica. Objetivo: Describir la epidemiología y los resultados asociados con la reanimación cardiopulmonar pediátrica en una unidad de recuperación cardiovascular. El criterio de valoración primario fue la supervivencia al momento del alta hospitalaria; los secundarios fueron el retorno de la circulación espontánea, la supervivencia a las 24 horas y la condición neurológica en el largo plazo. Método: Estudio de cohorte longitudinal, descriptivo, prospectivo, en menores de 18 años que requirieron reanimación cardiopulmonar entre 2016 y 2019. Se analizaron las variables demográficas y las características del paro cardiorrespiratorio y de la reanimación, así como su resultado. Se realizaron análisis de una y múltiples variables para comparar a los pacientes sobrevivientes con los fallecidos. Resultados: De los 1,842 pacientes internados, el 4.1% experimentó PCR. Se analizaron 50 pacientes con expedientes completos. Se logró el retorno de la circulación espontánea en el 78% (39), con una supervivencia alta del 46%. La reanimación > 6 min y el uso de fármacos vasoactivos fueron factores predictivos de mortalidad; se realizó el seguimiento de 16/23 pacientes, 10 de ellos con desarrollo normal para la edad luego de seis meses, seis tenían trastorno generalizado del desarrollo. Conclusiones: El 4.1% de los pacientes presentó un PCR, con una tasa de 3.4 PCR por 1,000 días-paciente. La supervivencia al egreso hospitalario (n = 50) fue del 46%. La reanimación > 6 min y la utilización de fármacos vasoactivos fueron factores predictivos independientes de mortalidad. Luego de seis meses, el 63% tenía desarrollo neurológico normal para la edad.

Abstract Background: Children with congenital heart disease present a higher frequency of cardiorespiratory arrest (CRA) than the general pediatric population. The epidemiology of CRA is not exactly known in our setting, nor are the mortality risk or the neurological evolution factors. Objective: To describe the epidemiology and outcomes associated with pediatric cardiopulmonary resuscitation in a cardiovascular recovery unit. The primary endpoint was the survival to discharge and the secondary endpoints were the return to spontaneous circulation, the survival at 24 hours and the remote neurological condition. Methods: Descriptive, prospective, longitudinal cohort study in children under 18 years of age who required cardiopulmonary resuscitation between 2016 and 2019. Demographic variables, characteristics of cardiopulmonary arrest, resuscitation and outcome were analyzed. An uni- and multivariate analysis was performed comparing survivors and deceased. Results: Out of 1,842 hospitalized patients, 4.1% presented CRA. Fifty patients with complete records were analyzed. Seventy-eight percent (39) returned to spontaneous circulation with a high survival rate of 46%. Resuscitation > 6 min and the use of vasoactive drugs were predictors of mortality; 16/23 patients were followed up, 10 of them with normal development for age at 6 months, six had pervasive developmental disorder. Conclusions: 4.1% of patients presented CRA, with a rate of 3.4 CRA per 1,000 patient-days. Survival at hospital discharge (n = 50) was 46%. Resuscitation > 6 min and the use of vasoactive drugs were independent predictors of mortality. At six months, 63% had normal neurological development for age.

Tecnologia educacional em vídeo para o ensino dos cuidados pós-reanimação neonatal / Video educational technology for teaching neonatal post-resuscitation care

Resumo: Esta pesquisa de desenvolvimento tecnológico apresenta a produção de uma série vídeos que abordam os Cuidados Pós-Reanimação Neonatal em Unidades de Terapia Intensiva, registrado como obra audiovisual brasileira na Agência Nacional do Cinema, com número de Certificado de Produto Brasileiro Nº B24-001351-00000. Teve como objetivo produzir e validar uma tecnologia educacional, no formato de vídeo, para a capacitação dos profissionais de enfermagem em Cuidados Pós-Reanimação Neonatal. Trata-se de uma pesquisa metodológica dividida em três fases: fase I - pré-produção, fase II - produção e fase III - pós-produção, realizada no período de maio de 2023 a janeiro de 2024. O estudo foi desenvolvido no Hospital de Base Dr. Ary Pinheiro, integrante da Rede de Atenção à Saúde do Estado de Rondônia ­ Brasil e no Programa de Pós-Graduação Prática do Cuidado em Saúde da Universidade Federal do Paraná. A validação do conteúdo do roteiro se deu à partir da avaliação de sete enfermeiros e quatro médicos especialistas com experiência na temática, obtendo-se Índice de Validade de Conteúdo- Geral de 89,8% e coeficiente alfa de Cronbach igual a 0,87, representando uma consistência quase perfeita. A validação da aparência dos vídeos contou com a participação dos mesmos especialistas que validaram o conteúdo, além do público-alvo, sendo estes últimos, seis enfermeiros e quatro técnicos em enfermagem. Na validação dos especialistas obteve-se Índice de Validade de Aparência-Individual de 100% e consequentemente Índice de Validade de Aparência-Geral de 100%. O coeficiente alfa de Cronbach foi igual a 0,95, representando uma consistência quase perfeita. Na validação realizada pelo público-alvo, dos 12 itens avaliados, cinco apresentaram Índice de Validade de Aparência-Individual de 90%, os demais obtiveram 100%. O Índice de Validade de Aparência-Geral foi de 96%, e o coeficiente alfa de Cronbach foi igual a 0,96, representando uma consistência quase perfeita. Como resultados foram produzidos quatro vídeos, fundamentados no Manual de Cuidados Pós-Reanimação Neonatal da Sociedade Brasileira de Pediatria e com contribuições dos especialistas e públicoalvo. Os vídeos foram produzidos em formato audiovisual 2D, com tempo individual inferior a 5 minutos e total de 17 minutos e 47 segundos, sendo disponibilizados gratuitamente em plataformas digitais como: CofenPlay®, Youtube® e Instagram®. Devido ao rigor metodológico utilizado neste estudo, é possível a replicação da produção dos vídeos com diversas temáticas e objetivos educacionais. Mediante o objetivo proposto, conclui-se que os vídeos produzidos são válidos para serem utilizados como um recurso tecnológico educacional facilitador do processo ensino-aprendizagem para a capacitação de profissionais de enfermagem em Cuidados Pós-Reanimação Neonatal.

Abstract: This technology development study presents the production of a series of videos addressing Neonatal Post-Resuscitation Care in Intensive Care Units. It was registered as a Brazilian audiovisual work at the National Cinema Agency under Brazilian Product Certificate number B24-001351-00000. The objective was to produce and validate an educational technology in video format to train nursing professionals in Neonatal Post-Resuscitation Care. This methodological study was divided into three phases: phase I - pre-production, phase II - production and phase III - post-production. It was developed between May 2023 and January 2024 at the Hospital de Base Dr. Ary Pinheiro, member of the Health Care Network of the state of Rondônia, Brazil, and in the Practical Postgraduate Program in Health Care at the Universidade Federal do Paraná. The content validation of the script was based on the evaluation performed by seven nurses and four specialist physicians with experience in the theme. The Overall Content Validity Index was 89.8% and the Cronbach's alpha coefficient was 0.87, representing an almost perfect consistency. The same experts who validated the content participated in the face validation of the videos, in addition to the target audience composed of six nurses and four nursing technicians. In the experts' validation, an Individual Face Validity Index of 100% was obtained and consequently, an Overall Face Validity Index of 100%. The Cronbach's alpha coefficient was 0.95, representing almost perfect consistency. In the validation by the target audience, five out of the 12 items evaluated presented an Individual Face Validity Index of 90%, while the others obtained 100%. The Overall Face Validity Index was 96%, and the Cronbach's alpha coefficient was 0.96, representing almost perfect consistency. As a result, four videos based on the Neonatal Post-Resuscitation Care Manual of the Brazilian Society of Pediatrics were produced, with contributions from specialists and the target audience. The videos were produced in 2D audiovisual format, with a duration of less than 5 minutes each and a total of 17 minutes and 47 seconds. They were made available free of charge on digital platforms such as: CofenPlay®, Youtube® and Instagram®. The methodological rigor used in this study allows the replication of the production of videos with different themes and educational objectives. Based on the proposed objective, the conclusion is that the videos produced are valid to be used as an educational technological resource to facilitate the teaching-learning process for the training of nursing professionals in Neonatal Post-Resuscitation Care.

Correlation between lncRNA GAS5 and LHPP expression and epithelial-mesenchymal transformation in non-small cell lung cancer tissues and clinical significance / 国际检验医学杂志

Objective To investigate the correlation between the expression of long non-coding ribonucleic acid growth arrest specific 5(lncRNA GAS5),phospholysine phosphohistidine inorganic pyrophosphate phos-phatase(LHPP)and epithelial-mesenchymal transition(EMT)in cancer tissues of patients with non-small cell lung cancer(NSCLC)and its clinical significance.Methods Cancer tissues and adjacent tissues of 90 patients with NSCLC who underwent surgical resection in the First Hospital Affiliated to Hebei North College from June 2018 to January 2020 were collected.The expressions of lncRNA GAS5,LHPP and EMT-associated pro-teins[E-calmodulin(E-Cad),N-calmodulin(N-Cad),and vimentin(VIM)]were detected by real-time fluores-cence quantitative polymerase chain reaction.The relationship between lncRNA GAS5 and LHPP mRNA and clinicopathological features in cancer tissues of NSCLC patients was analyzed,and the correlation between ln-cRNA GAS5 and LHPP mRNA and EMT-associated proteins expression in cancer tissues of NSCLC patients was analyzed by Pearson correlation.Kaplan-Meier method was used to plot the survival curves of NSCLC pa-tients with different lncRNA GAS5 and LHPP mRNA expressions,and multivariate Cox regression was used to analyze the prognostic factors of NSCLC patients.Results The expressions of lncRNA GAS5,LHPP mR-NA and E-Cad mRNA in cancer tissues of NSCLC patients were lower than those in adjacent tissues,while the expressions of N-Cad mRNA and VIM mRNA were higher than those in adjacent tissues,with statistical sig-nificance(P＜0.05).Pearson correlation analysis showed that lncRNA GAS5 in cancer tissues of NSCLC pa-tients was positively correlated with E-Cad mRNA expression(r=0.724,P＜0.001),and negatively correla-ted with N-Cad mRNA and VIM mRNA expression(r=-0.699,-0.689).P＜0.001);lncRNA GAS5 was positively correlated with LHPP mRNA expression(r=0.651,P＜0.001).The mRNA expressions of ln-cRNA GAS5 and LHPP in cancer tissues of NSCLC patients with different degrees of differentiation,tumor TNM stage and lymph node metastasis were significantly different(P＜0.05).Kaplan-Meier survival curve a-nalysis showed that the 3-year overall survival rate in the lncRNA GAS5 high expression group[68.18％(30/44)]was higher than that in the lncRNA GAS5 low expression group[36.96％(17/46)].The 3-year overall survival rate in the high LHPP mRNA expression group[67.39％(31/46)]was higher than that in the lowLHPP mRNA expression group[36.36％(16/44)],and the difference was statistically significant(x2=10.274,10.322,P＜0.05).Low differentiation,TNM stage Ⅲ and lymph node metastasis were independent risk factors for death in NSCLC patients,and lncRNA GAS5≥1.32 and LHPP mRNA≥1.12 were independ-ent protective factors(P＜0.05).Conclusion The low expression of lncRNA GAS5 and LHPP mRNA in cancer tissues of patients with NSCLC is related to EMT-associated proteins expression,differentiation de-gree,tumor TNM stage,lymph node metastasis and prognosis,and may become a new target for the diagnosis and treatment of NSCLC.

Construction and validation of a model for predicting the risk of in-hospital cardiac arrest in emergency rooms / 中华急诊医学杂志

Objective:The predictive model of cardiac arrest in the emergency room was constructed and validated based on Logistic regression.Methods:This study was a retrospective cohort study. Patients admitted to the emergency room of the First Affiliated Hospital of Xinjiang Medical University from January 2020 to July 2021 were included. The general information, vital signs, clinical symptoms, and laboratory examination results of the patients were collected, and the outcome was cardiac arrest within 24 hours. The patients were randomly divided into modeling and validation group at a ratio of 7:3. LASSO regression and multivariable logistic regression were used to select predictive factors and construct a prediction model for cardiac arrest in the emergency room. The value of the prediction model was evaluated using the area under the receiver operator characteristic curve (AUC), calibration curve, and decision curve analysis (DCA).Results:A total of 784 emergency room patients were included in the study, 384 patients occurred cardiac arrest. The 10 variables were ultimately selected to construct a risk prediction model for cardiac arrest: Logit( P)= -4.503+2.159×modified early warning score (MEWS score)+2.095×chest pain+1.670×abdominal pain+ 2.021×hematemesis+2.015×cold extremities+5.521×endotracheal intubation+0.388×venous blood lactate-0.100×albumin+0.768×K ++0.001×D-dimer. The AUC of the model group was 0.984 (95% CI: 0.976-0.993) and that of the validation group was 0.972 (95% CI: 0.951-0.993). This prediction model demonstrates good calibration, discrimination, and clinical applicability. Conclusions:Based on the MEWS score, chest pain, abdominal pain, hematemesis, cold extremities, tracheal intubation, venous blood lactate, albumin, K +, and D-dimer, a predictive model for cardiac arrest in the in-hospital emergency room was constructed to predict the probability of cardiac arrest in emergency room patients and adjust the treatment strategy in time.

Comparative study on clinical characteristics of cardiogenic and non-cardiogenic cardiac arrest patients out-of-hospital based on Utstein style / 中华急诊医学杂志

Objective:To analyze the causes of out-of-hospital cardiac arrest (OHCA) and the differences in outcomes of pre-hospital first-aid measures and cardiopulmonary resuscitation for different etiologies, improved the success rate of rescue.Methods:A retrospective study was conducted on OHCA patients admitted to Beijing Emergency Medical Centre from January to December 2021. The pre-hospital emergency medical records and rescue results within medical institutions were collected. Compared the basic situation between patients with cardiogenic and non-cardiogenic cardiac arrest, the differences of rescue measures and CPR outcomes between the groups were compared by non-parametric test and χ 2 test. Results:A total of 7 517 patients were included in this study. Cardiogenic arrest patients were older, more underlying diseases (84.2%), and cardiac arrest mainly occurred at home. The cause of non-cardiogenic arrest included disease (85.1%), trauma (2.9%), suicide (5.0%), traffic accidents (1.7%), poisoning (1.1%), and so on. In terms of first-aid measures, after the emergency doctor arrived at the scene, the proportion of first-aid measures used for cardiogenic patients was high (22.3%), and the first aid measures include cardiopulmonary resuscitation, tracheal intubation, defibrillation, oxygen inhalation, injection of adrenaline and use of other drugs. All the proportions of first-aid measures for cardiogenic patients were significantly higher than non-cardiogenic patients (all P<0.001). In terms of clinical outcomes, there were no statistical differences in return of spontaneous circulation ( P=0.072) and 24-hour survival ( P=0.093) between cardiogenic and non-cardiogenic patients. Conclusions:Cardiogenic cardiac arrest was the main cause of OHCA. Cardiogenic arrest patients were more underlying diseases, and older in age, the main clinical feature was onset at home. The comprehensive treatment measures for pre-hospital first-aid cardiac arrest should continue to be strengthened to improve the success rate of rescue for OHCA.

Analysis of the characteristics of brain resuscitation in patients with out-of-hospital cardiac arrest after resuscitation / 中华急诊医学杂志

Objective:To analyze and discuss the characteristics of cardiopulmonary and cerebral resuscitation (CPCR) in patients after out-of-hospital cardiac arrest (OHCA).Methods:The data of OHCA patients admitted to the directly-managed branch of the Wuxi Emergency Medical Center, covering the period from December 26, 2016, at 7:45 to August 26, 2022, at 7:45. The analysis included the first electrocardiogram (ECG), clinical characteristics, pre-hospital emergency measures, and follow-up conditions in the hospital. Based on the Glasgow-Pittsburgh cerebral function grading at discharge, patients were divided into a CPCR group (grades 1-2) and a non-CPCR group (grades 3-5). The study compared the basic conditions, resuscitation times, and vital signs after resuscitation between the two groups to evaluate the factors affecting CPCR.Results:A total of 6 040 OHCA cases were treated, 3 002 cases received pre-hospital resuscitation. The initial ECG indicated a shockable rhythm in 185 cases, with a shockable rhythm rate of 6.16%. There were 293 pre-hospital survivors, with a pre-hospital survival rate of 9.76%. 170 cases survived to be discharged, with a discharge survival rate of 5.66%. Ultimately, 44 cases achieved CPCR, accounting for 25.88% of the cases that survived to discharge. There were statistically significant differences in terms of first-witness treatment, defibrillable rhythm ratio, defibrillation, response to pain stimulation after return of spontaneous circulation (ROSC), spontaneous breathing, light reflex, pulse oxygenation, and blood pressure between the CPCR and non-CPCR groups (all P<0.05). The CPCR group showed significantly higher proportions than the non-CPCR group in the defibrillatable rhythm (75.00% vs. 10.44%), undergoing defibrillation (70.46% vs. 9.24%), having spontaneous breathing after ROSC (86.36% vs. 17.27%), and having oxygen saturation >92% with systolic blood pressure >90 mmHg (86.36% vs. 39.76%).There were statistically significant differences between the CPCR and non-CPCR groups in the time from cardiac arrest (CA) to doctor reception, CA to first defibrillation, CA to ROSC, and CA to discharge or in-hospital death (all P<0.05). Conclusions:The patients with successful pre-hospital resuscitation and finally cerebral resuscitation were characterized by short times from OHCA to first medical contact (FMC) and from FMC to ROSC, appropriate pre-hospital vital sign management accompanied by partial neurological recovery, and comprehensive in-hospital neurological prognosis assessment.

Risk factors for poor prognosis in patients with extracorporeal cardiopulmonary resuscitation / 中华急诊医学杂志

Objective:To analyze the clinical characteristics of patients undergoing extracorporeal cardiopulmonary resuscitation (ECPR), and to explore the risk factors leading to poor prognosis.Methods:The clinical data of 95 patients with ECPR admitted to the First Affiliated Hospital of Zhengzhou University from January 2020 to May 2023 were retrospectively analyzed. According to the survival status at the time of discharge, the patients were divided into the survival group and death group. The difference of clinical data between the two groups was compared to explore the risk factors related to death and poor prognosis. Risk factors associated with death were identified by Binary Logistic regression analysis. Results:A total of 95 patients with ECPR were included in this study, 62 (65.3%) died and 33 (34.7%) survived at discharge. Patients in the death group had longer low blood flow time [40 (30, 52.5) min vs. 30 (24.5, 40) min ] and total cardiac arrest time[40 (30, 52.5) min vs. 30(24.5, 40) min], shorter total hospital stay [3 (2, 7.25) d vs. 19 (13.5, 31) d] and extracorporeal membrane oxygenation (ECMO) assisted time [26.5 (17, 50) h vs. 62 (44, 80.5) h], and more IHCA patients (56.5% vs. 33.3%) and less had spontaneous rhythm recovery before ECMO (37.1% vs. 84.8%). Initial lactate value [(14.008 ± 5.188) mmol/L vs.(11.23 ± 4.718) mmol/L], APACHEⅡ score [(30.10 ± 7.45) vs. (25.88 ± 7.68)] and SOFA score [12 (10.75, 16) vs. 10 (9.5, 13)] were higher ( P< 0.05). Conclusions:No spontaneous rhythm recovery before ECMO, high initial lactic acid and high SOFA score are independent risk factors for poor prognosis in ECPR patients.

The protective effect and mechanism of sivelestat on the heart after resuscitation through regulating β-catenin signaling pathway / 中华急诊医学杂志

Objective:To establish the pig model of cardiac arrest and resuscitation, and then investigate the protective role of sivelestat (SV) on the heart after resuscitation and its relation with β-catenin signaling pathway.Methods:Twenty-five healthy male white pigs were purchased. The animals were randomly divided into the Sham group ( n=6), cardiopulmonary resuscitation group (CPR, n=10), and CPR+SV group ( n=9). The experimental animal model was established by 9 min of cardiac arrest induced by the method of ventricular fibrillation and then 6 min of CPR in the CPR and CPR+SV groups. At 5 min after successful resuscitation, a dose of 10 mg/kg of SV was infused in a duration of 1h via the femoral vein with a micro-infusion pump in the CPR+SV group. Myocardial function evaluated by the values of stroke volume (SV) and global ejection fraction (GEF) was measured by PiCCO at baseline, and at 0.5, 1, 2, 4 h after resuscitation. The serum concentrations of cardiac injury biomarkers including cardiac troponin I (cTnI) and creatine kinase isoenzymes (CK-MB) were measured by ELISA using blood samples drawn from the femoral vein at baseline, and at 1, 2, 4, and 24 h after resuscitation. The animals were euthanized at 24 h after resuscitation, and then cardiac tissue samples were harvested to measure the protein expression levels of β-catenin, Cyclin D1, c-Myc, cleaved caspase-9, and cleaved caspase-3 by Western blot and the degree of cell apoptosis by TUNEL. Results:Prior to cardiac arrest, myocardial function and cardiac injury biomarkers were maintained at the same levels, and no differences were observed among the three groups (all P> 0.05). After resuscitation, myocardial dysfunction and cardiac injury were observed in the CPR and CPR+SV groups, in which the values of SV and GEF were significantly decreased and meanwhile the serum concentrations of cTnI and CKMB were significantly increased when compared with the Sham group (all P< 0.05). However, myocardial dysfunction and cardiac injury were significantly milder in the CPR+SV group, in which the value of SV at 4h post-resuscitation and the values of GEF starting 1h post-resuscitation were significantly increased, and the serum concentrations of cTnI and CKMB were significantly decreased at 4 and 24 h post-resuscitation when compared to the CPR group (all P< 0.05). Tissue measurements indicated that the change of β-catenin signaling pathway and the occurrence of cell apoptosis were observed in the heart at 24 h post-resuscitation in the CPR and CPR+SV groups, which were indicated by significant increases in the protein expression levels of β-catenin, Cyclin D1, c-Myc, cleaved caspase-9, and cleaved caspase-3, and marked elevation in the index of cell apoptosis when compared with the Sham groups (all P< 0.05). However, the expression levels of proteins mentioned above were significantly decreased in the heart at 24 h post-resuscitation and the index of cell apoptosis was significantly reduced in the CPR+SV group when compared to the CPR group (all P< 0.05). Conclusion:SV has the protective role in alleviating post-resuscitation myocardial dysfunction and cardiac injury, in which the protective mechanism is possibly related to the alleviation of cell apoptosis through the inhibition of β-catenin signaling pathway activation.

Preparation process for initiating extracorporeal cardiopulmonary resuscitation in hospital: best evidence summary / 中国实用护理杂志

Objective:To retrieve, evaluate and integrate the evidence related to the preparation process for initiating extracorporeal cardiopulmonary resuscitation in hospital, so as to provide reference for clinical implementation of extracorporeal cardiopulmonary resuscitation.Methods:According to the evidence-based nursing method and the 6S evidence model, guidelines, clinical decisions, expert consensus, systematic review and other literatures related to the preparation process for initiating extracorporeal cardiopulmonary resuscitation in hospital were searched from National Guideline Clearinghouse, Scottish Intercollegiate Guidelines Network, National Institute for Health and Care Excellence, and other websites, UpToDate, The Cochrane Library, PubMed, Embase, CNKI, Wanfang and other databases. The retrieval date limit was from the establishment of the database to May 20, 2023. Researchers assessed the quality of the included articles, and extracted and summarized the evidence that met the quality standards.Results:A total of 11 articles were included, including 2 guidelines, 6 expert consensuses, 1 systematic review and 2 quasi-experimental studies. A total of 18 pieces of evidences were summarized from 6 aspects, including medical conditions, team building, materials management, operation mechanism, pre-initiating treatment and initiating judgment.Conclusions:This study summarizes the evidence of preparation process for initiating extracorporeal cardiopulmonary resuscitation in hospital, which can provide reference for promoting the implementation of extracorporeal cardiopulmonary resuscitation. Future studies still need to focus on team building, personnel training and assessment, and optimisation of the management system, so as to improve the efficiency and readiness of treatment.

Effect of tubastatin A on pyroptosis during brain injury after cardiac arrest and resuscitation in swine / 中华麻醉学杂志

Objective:To evaluate the effect of tubastatin A (TubA) on pyroptosis during brain injury after cardiac arrest and resuscitation in swine.Methods:Twenty-two conventional male white swine, weighing 34-39 kg, aged 4-6 months, were divided into 3 groups using a random number table: sham operation group (group S, n=6), cardiac arrest-cardiopulmonary resuscitation (CA-CPR) group ( n=8) and CA-CPR+ TubA group ( n=8). The swine model of CA-CPR was established by 9 min of cardiac arrest and 6 min of cardiopulmonary resuscitation in CA-CPR group and CA-CPR+ TubA group. TubA 4.5 mg/kg (in 50 ml of normal saline) was infused over 1 h via the femoral vein starting from 5 min after resuscitation in CA-CPR+ TubA group. Before developing the model and at 1, 2, 4 and 24 h after resuscitation (T 0-4), blood samples were collected from the femoral vein for determination of the concentrations of neuron specific enolase (NSE) and S100β protein in serum (by enzyme-linked immunosorbent assay). Neurological deficit score (NDS) was evaluated at T 4. The animals were then sacrificed, and their brain cortex tissues were harvested to measure the expression of histone deacetylase 6 (HDAC6), caspase-3, cleaved caspase-3, gasdermin E (GSDME) and GSDME N-terminal (N-GSDME) (by Western blot) and contents of high mobility group box 1 (HMGB1), interleukin-1β (IL-1β) and IL-18 (by enzyme-linked immunosorbent assay). Results:Compared with group S, the serum concentrations of NSE and S100β were significantly increased at T 1-4, NDS was increased at T 4, the expression of HDAC6, caspase-3, cleaved caspase-3, GSDME and N-GSDME in brain cortex was up-regulated, and the contents of HMGB1, IL-1β and IL-18 were increased in CA-CPR and CA-CPR+ TubA groups ( P<0.05). Compared with group CA-CPR, the serum concentrations of NSE and S100β were significantly decreased at T 3, 4, NDS was decreased at T 4, the expression of HDAC6, caspase-3, cleaved caspase-3, GSDME and N-GSDME in brain cortex was down-regulated, and the contents of HMGB1, IL-1β and IL-18 were decreased in group CA-CPR+ TubA ( P<0.05). Conclusions:The mechanism by which TubA alleviates brain injury after cardiac arrest and resuscitation may be related to inhibition of pyroptosis in swine.