Valor de creatinina, potasio y glicemia como predictores de eventos adversos del síndrome coronario agudo

Introducción: En los últimos años la definición de síndrome coronario agudo, ha englobado las diferentes formas de presentación de la cardiopatía isquémica aguda. A pesar de las posibilidades terapéuticas actuales presenta todavía una morbimortalidad elevada y no se cuenta con herramientas de laboratorio para sospechar de manera precoz las complicaciones. Objetivo: Determinar el valor de los cambios de la concentración de creatinina, potasio y glicemia como predictores de eventos adversos del síndrome coronario agudo. Métodos: Se realizó un estudio analítico de cohorte. La muestra estuvo constituída por 124 pacientes. Se confeccionó un formulario donde se recogieron los datos a partir de las historias clínicas, las variables fueron: grupos de edades, sexo, color de piel, diagnóstico, evento adverso, creatinina, potasio y glicemia. Resultados: Predominó el grupo de edad de más de 60 años, el sexo masculino y color de piel blanco. Los principales eventos adversos fueron arritmias y disfunción ventricular izquierda. La creatinina elevada se asoció a disfunción ventricular izquierda, insuficiencia cardíaca y edema agudo del pulmón, la hiperpotasemia con arritmias potencialmente fatales que degeneraron en paro en asistolia y muerte. La hipopotasemia se asoció con arritmias y la hiperglicemia con la recurrencia del episodio isquémico. Conclusiones: La totalidad de los pacientes con valores normales de creatinina, potasio y glicemia no presentaron complicaciones y se demostró su utilidad como predictores de eventos adversos del síndrome coronario agudo.

Introduction: In recent years, the definition of acute coronary syndrome has encompassed the different forms of presentation of acute ischemic heart disease. Despite the current therapeutic possibilities, it still presents a high morbidity and mortality and there are no laboratory tools to suspect complications early. Objective: To determine the value of the changes in the concentration of creatinine, potassium and glycemia as predictors of adverse events of acute coronary syndrome in patients admitted to Hospital Universitario Manuel Ascunce Domenech in the period from October 2017 to October 2018. Methods: A analytical cohort study. The sample consisted of 124 patients. A form was made where the data were collected from the medical records, the variables were: age groups, sex, skin color, diagnosis, adverse event, creatinine, potassium and glycemia. Results: The age group over 60 years old, male sex and white skin color predominated. The main adverse events were arrhythmias and left ventricular dysfunction. Elevated creatinine was associated with left ventricular dysfunction with heart failure and acute pulmonary edema, hyperkalemia was associated with potentially fatal arrhythmias that degenerated into asystole arrest and death. Hypokalemia was associated with arrhythmias and hyperglycemia with the recurrence of the ischemic episode. Conclusions: All the patients with normal values ​​of creatinine, potassium and glycemia without complications and their usefulness as predictors of adverse events of acute coronary syndrome was demonstrated.

Expert consensus on the development of standardization of emergency medical laboratory capacity in Chinese / 中华检验医学杂志

In order to enhance the communication and cooperation between clinic and medical laboratory, strengthen the emergency medical laboratory and clinical management, promote the development of emergency medical laboratory and clinic, improve the comprehensive emergency treatment ability, and realize the standardized construction of emergency under the hierarchical diagnosis and treatment. The emergency clinical experts and medical laboratory experts formed a teamto discuss how to understand the needs of clinicians, standardize the construction of emergency medical laboratory and improve emergency treatment ability through multiple meetings and questionnaires. The laboratory staffandthe clinicians should communicate effectively. According to the common diseases or critical cases in the emergency, they should work out the types of emergency test items together, select the critical value items, and determine the critical value reporting threshold. The quality management system of emergency medical laboratory should be established, operated effectively and improved continuously, so as to provide accurate and timely report for clinic and improve the ability of medical institutions at all levels to treat critical cases. Emergency physicians and laboratory staff should work together to standardize the construction of emergency medical laboratory, improve the service ability of emergency medical laboratory, and promote the ability of emergency physicians at all levels of medical units to treat critical cases.

Evaluation of the clinicai analysis service provided to an emergency department / Avaliação do serviço de análises clínicas prestado a uma unidade de emergência

ABSTRACT Introduction: Time for releasing test results and critical value communication by the clinical laboratory are considered important determinants of patients' length of stay in the Emergency Department (ED). As well as physician satisfaction, they are used as quality indicators of the Clinical Analysis Service (CAS). Objective: The aim of this study was to evaluate the time to return a test result, the communication of critical values and the level of satisfaction of the ED physicians of a university hospital with the CAS. Material and methods: A physician satisfaction survey was conducted using a questionnaire. The test turnaround time for emergency requests was analyzed by observation of the pre-analytical phase and monitoring the analytical and post-analytical phases through the laboratory information system. In order to evaluate the communication of critical values by the CAS, a document analysis of the process was performed. Results: Physicians' overall satisfaction with the CAS was considered average. Greater satisfaction was observed with reliability of the results and the staff courtesy and lesser with the delivery time of results. The test turnaround time exceeded clinicians' expectations and the average described in the literature. No experience with critical-value communication was perceived. Conclusion: The results show several opportunities for progress in the relationship between ED and CAS. The improvement of laboratory quality indicators also depends on the involvement of ED physicians and nurses and embraces monitoring, planning, education and investment in system computerization.

RESUMEN Introducción: El tiempo de entrega de pruebas y la comunicación de valores críticos por el laboratorio clínico son considerados factores determinantes del tiempo de permanencia del paciente en la Sección de Urgencias (SU). Por lo tanto, así como la satisfacción de los médicos, estos datos también son utilizados como indicadores de calidad del Servicio de Análisis Clínicos (SAC). Objetivo: Evaluar el tiempo de entrega de pruebas, la comunicación de valores críticos y el grado de satisfacción de los médicos de la SU de un hospital universitario con el SAC. Material y método: Se realizó una encuesta de satisfacción de los médicos, utilizando un cuestionario. El tiempo de reporte de resultados en la SU ha sido analizado por medio de observación presencial de la fase preanalítica y monitoreo en el sistema computorizado de las fases analítica y postanalítica del laboratorio. Para evaluar la comunicación de valores críticos por el SAC, un análisis documental del proceso ha sido realizado. Resultados: La satisfacción general con el SAC fue considerada regular por los médicos participantes; hubo mayor satisfacción con la confianza en los resultados y con la atención del personal, y menor con el tiempo de entrega de resultados. Los tiempos de reporte han sido más largos que las expectativas de los médicosy la media descripta en la literatura. No se ha observado una cultura de comunicación de valores críticos. Conclusión: Los resultados han ensenado varias oportunidades deprogreso en la relación entre SUy SAC. La mejoría de los indicadores de calidad de laboratorio evaluados depende también del envolvimiento de los médicos y enfermeros del SU e incluye monitoreo, planeamiento, educación e investimento en informatización del sistema.

RESUMO Introdução: O tempo de liberação de exames e a comunicação de valores críticos pelo laboratório clínico são considerados importantes determinantes do tempo de permanência do paciente no Serviço de Emergência (SE). Portanto, assim como a satisfação dos médicos, esses dados também são utilizados como indicadores de qualidade do Serviço de Análises Clínicas (SACL). Objetivo: Avaliar o tempo de liberação de exames, a comunicação de valores críticos e o nível de satisfação dos médicos do SE de um hospital universitário em relação ao SACL. Material e métodos: Foi realizada uma pesquisa de satisfação dos médicos, utilizando um questionário. O tempo de liberação dos resultados de exames de emergência foi analisado por meio de observação presencial da fase pré-analítica e monitoramento no sistema informatizado das fases analítica e pós-analítica do laboratório. Para avaliar a comunicação de valores críticos pelo SACL, foi realizada análise documental do processo. Resultados: A satisfação geral com o SACL foi considerada regular pelos médicos participantes, com maior satisfação quanto à confiança nos resultados e à cortesia dos servidores e menor quanto ao tempo de entrega de resultados. Os tempos de liberação de resultados dos exames ultrapassaram as expectativas dos médicos e a média descrita na literatura. Não foi observada cultura de comunicação de valores críticos. Conclusão: Os resultados demonstraram várias oportunidades de progresso na relação entre o SE e o SACL. A melhoria dos indicadores da qualidade laboratorial avaliados depende também do envolvimento dos médicos e dos enfermeiros do SE e inclui monitoramento, planejamento, educação e investimento em informatização do sistema.

Research progress of platelet function tests in antiplatelet effect on monitoring P2Y12 receptor antagonist / 天津医药

The P2Y12 receptor antagonist is used widely in prevention and treatment of cardiovascular and cerebrovascular disease. Monitoring changes of platelet function after treatment can improve the prognosis of patients. The platelet function test is the important way to evaluate high residual platelet reactivity after antiplatelet treatment, including light transmission aggregometry (LTA), whole blood impedance aggregometry assay (WBIA), vasodilator- stimulated phosphoprotein (VASP), thrombelastogram (TEG), platelet function analyzer- 100 (PFA-100) and VerifyNow system (VerifyNow). It is very different for the reflecting ability with residual reactivity of platelets among these tests after anti-platelet therapy, and also significant difference for assessment effect. Among them, LTA is a classic method for the curative effect evaluation of anti-platelet agents, which is convenient and cheap, but it is susceptible to the operating and environment interference. The clinical application of WBIA is less, and which lacks threshold value for assessment. VASP is sensitive for the changes of platelet function, but the test is complex and expensive. TEG can monitor the inhibition ratio of drugs on anti-platelets, but it needs to verify the safety of treatment. It is not clear for sensitivity and specificity with monitoring anti-platelet agent by PFA-100. VerifyNow is effective and reliable, but the cost is high. The evidence of clinical study shows that LTA, VASP and VerifyNow can reflect the effect of platelet inhibition of P2Y12 receptor antagonists sensitively, and is associated with the risk of major adverse cardiac events (MACE) in patients with cadiovascular diseases.