RESUMO
OBJECTIVES: To validate the EAHFE-3D scale, based on the Acute Heart Failure in Emergency Departments registry, in a cohort of patients attended for acute heart failure. MATERIAL AND METHODS: Study of a multipurpose cohort of patients with acute heart failure in 3 hospitals in the Basque Country between 2011 and 2013. We extracted age, baseline New York Heart Association functional class, systolic blood pressure, baseline arterial oxygen saturation, sodium level in blood, and emergency department treatments (noninvasive mechanical ventilation, use of inotropic agents and vasopressors) in order to calculate each patient's EAHFE-3D score. The main outcome variable was mortality within 3 days of arrival at the emergency department. RESULTS: The patient sample for score validation consisted of 717 patients with complete information. The model's intercept was 0.5 (95% CI, -2.7 to 3.7) and the slope was 1.3 (95% CI, 0.4 to 2.2). The area under the receiver operating characteristic curve was 0.76 (95% CI, 0.58 to 0.94). CONCLUSION: The EAHFE-3D scale's ability to discriminate was good in this patient sample and similar to that reported by the authors who developed the scale; however, calibration was poor. The scale should be studied further before it is applied in clinical practice.
OBJETIVO: Validar la escala pronóstica EAHFE-3D en una cohorte externa de pacientes atendidos por insuficiencia cardiaca aguda (ICA). METODO: Estudio de cohortes multipropósito que incluyó pacientes con ICA en 3 centros hospitalarios del País Vasco entre 2011 y 2013. Se recogieron los datos demográficos (edad), clase funcional basal (New York Heart Association), clínicos (presión arterial sistólica y saturación de oxígeno basal), analíticos (natremia) y terapéuticos (ventilación mecánica no invasiva e inotrópicos y vasopresores) en el servicio de urgencias (SU) necesarios para el cálculo de la escala EAHFE-3D. La variable de resultado principal fue la mortalidad a tres días de la llegada al SU. RESULTADOS: Analizamos 717 pacientes con información completa. El intercepto ß el modelo fue 0,5 (IC95%: 2,7- 3,7) y la pendiente α fue de 1,3 (IC95%: 0,4-2,2). El área bajo la curva AUC (ROC) fue 0,76 (IC95%: 0,58-0,94). CONCLUSIONES: La escala EAHFE-3D presentó una buena capacidad predictiva en nuestra muestra, no diferente a la obtenida por los autores originales, aunque no ha mostrado buena calibración. Se recomienda continuar con el proceso de validación antes de ser implementada en la práctica clínica.
Assuntos
Insuficiência Cardíaca/mortalidade , Doença Aguda , Pressão Sanguínea , Serviço Hospitalar de Emergência , Feminino , Insuficiência Cardíaca/sangue , Humanos , Masculino , Oxigênio/sangue , Prognóstico , Sistema de Registros , Respiração Artificial/estatística & dados numéricos , Estudos Retrospectivos , Sódio/sangue , Espanha/epidemiologiaRESUMO
INTRODUCTION AND OBJECTIVES: Bioresorbable vascular scaffolds (BVS) have the potential to restore vasomotion but the clinical implications are unknown. We sought to evaluate angina and ischemia in the long-term in patients treated with BVS and metallic drug-eluting stents (mDES). METHODS: Multicenter study including patients with 24 ± 6 months of uneventful follow-up, in which stress echocardiography was performed and functional status was assessed by the Seattle Angina Questionnaire (SAQ). The primary endpoint was a positive result in stress echocardiography. RESULTS: The study included 102 patients treated with BVS and 106 with mDES. There were no differences in the patients' baseline characteristics. Recurrent angina was found in 18 patients (17.6%) in the BVS group vs 25 (23.5%) in the mDES group (P = .37), but SAQ results were significantly better in the BVS group (angina frequency 96.0 ± 8.0 vs 89.2 ± 29.7; P = .02). Stress echocardiography was positive in 11/92 (11.9%) of BVS patients vs 9/96 (9.4%) of mDES patients in the (P = .71) and angina was induced in 2/102 (1.9%) vs 7/106 (6.6%) (P = .18), respectively, but exercise performance was better in the BVS group even in those with positive tests (exercise duration 9.0 ± 2.0minutes vs 7.7 ± 1.8minutes; P = .02). A propensity score matching analysis yielded similar results. CONCLUSIONS: The primary endpoint was similar in both groups. In addition, recurrent angina was similar in patients with BVS and mDES. The better functional status, assessed by means of SAQ and exercise performance, detected in patients receiving BVS should be confirmed in further studies.
