Variables.
The endpoint variables were all-cause mortality at 30 days and one year
after inclusion, with monthly intermediate analyses and reconsultation
to the HED within 30 days for a new episode of AHF.
The following data were collected from all the patients: age and sex,
data of the triage in the HED (systolic and diastolic blood pressure,
heart rate and respiratory frequency), previous history of
cardiovascular and non cardiovascular disease, grade of functional
dependence measured by the Barthel index and functional grade for
dyspnea according to the scale of the New York Heart Association (NYHA),
echocardiography and type of dysfunction, clinical data of the acute
episode, chronic treatment of the patient and treatment during care in
the HED, complementary analytical tests including complete blood count,
glucose, urea, creatinine, sodium, potassium, troponins and natriuretic
peptides. The estimated glomerular filtration rate (eGFR) was calculated
using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)
formula23, and data from the electrocardiogram,
patient admission and discharge, stay in the observation unit and the
date of definitive discharge were also collected.