Argentine registry of acute heart failure (ARGEN-IC) “reality in pandemic times”

Introduction: The ARGEN-IC registry allowed knowing the clinical and epidemiological characteristics of acute heart failure (AHF) in our country;however, there are no available national data of the consequences on AHF of social, preventive and mandatory distancing due to the SARS-CoV-2 pandemic. Objective: The aim of this study was to evaluate the clinical and epidemiological characteristics of patients admitted to the ARGEN-IC registry during confinement and social distancing due to the SARS-CoV-2 pandemic. Methods: Patients included in the ARGEN-IC registry during March-June 2019 (group A: Non-COVID era) were compared with those admitted in the same period of 2020 (group B: COVID era). Affiliation data, clinical, biochemical, imaging and therapeutic characteristics during hospitalization and the associated complications (cardiovascular and non-cardiovascular mortality) were recorded. Results: A total of 361 patients were included in the study: 222 in group A and 139 in group B. Significant differences were observed between both populations in terms of age (group A: 70.9 ± 14.8 years vs. group B: 75 ± 13.3, p = 0.008), history of hypertension (group A: 70.2 % vs. group B: 87.7%, p <0.001), history of ischemic stroke (group A: 4.5% vs. group B: 10.07%, p = 0.039), and left ventricular hypertrophy (group A: 4.9 % vs. group B: 1.5 %, p = 0.021). No significant differences were found between the two populations regarding other variables such as etiology, triggering factors, and forms of clinical presentation, although there was a trend towards greater history of depression in group B. There was no difference in the length of hospital stay or mortality. Conclusions: During compulsory social distancing in our country, we observed a decrease in hospitalizations for AHF in 2020 compared with those registered in the same period of 2019, but the population requiring hospitalization was older and with more comorbidities. No differences were observed in overall and cardiovascular mortality, or in the length of hospital stay.