Incidence of 1-year mortality, heart failure admissions and decompensation in patients with heart failure followed in HF units in Spain. Differences according to type of units
Authors: Anguita Gamez M , Bonilla Palomas J L , Gonzalez Manzanares R , Muniz Garcia J , Cequier Fillat A , Romero Rodriguez N , Rodriguez Padial L , Recio Mayoral A , Elola Somoza J , Anguita Sanchez M 
Published: October 2024

Abstract

Introduction
Heart failure is a serious health problem and continues to have a high mortality and incidence of decompensation, despite advances in its management. The introduction of specific multidisciplinary HF units has improved the management of patients with this disease, thanks to better organization and management of available diagnostic and therapeutic resources. The HF Association of the ESC and the Spanish Society of Cardiology have defined 3 types of HF units (community, specialized, and advanced) according to their structure, complexity, and portfolio of services.

Purpose
To analyze in a contemporary registry of patients with HF followed up in HF units in Spain whether the results in terms of mortality and HF decompensations during follow-up are similar or different between the 3 types of units.

Methods
We analyzed data from the registry of the SEC-Excelente-IC quality accreditation program of the Spanish Society of Cardiology, with 1,716 patients with HF included between 2019 and 2021 by 45 SEC-accredited HF units. Patients were included consecutively in two 1-month cutoffs (March and October) in that period. Units were defined as community, specialized, and advanced according to ESC HFA and SEC criteria. We compared the incidence of death, HF admissions and total decompensations at 1-year follow-up between community and specialized/advanced units.

Results
Of the 1716 patients, 55.5% were treated in community units, 65.9% in advanced units, and 20.9% in advanced HF units. Figure 1 shows the main characteristics and treatment used in the 3 types of units. The community units treated older patients and more HFpEF, and the use of NRA and AID was lower, with no differences in the remaining characteristics, comorbidities, or treatments (Figure 1). Figure 2 shows the incidence of events at 1 year. Total mortality was 27.5% in community and 15.5% in specialized/advanced (p&lt;0.001). HF admissions (39.7 vs 29.2%; p=0.019), HF decompensations without admission (16.4 vs 11.3%; p=0.074), total decompensations (56.1 vs 40.5%; p=0.003), and combined HF death/admissions (45.2 vs 31.4%; p=0.005) were statistically higher in community units. Control in specialized/advanced units was an independent protector factor for all events (mortality: HR 0.59, 0.43-0.82; p=0.002; HF admissions: HR 0.61, 0.42-0.90; p=0.012; total HF decompensations: HR 0.58, 0.42-0.81; p=0.001).

Conclusions
One-year prognosis of HF patients continues to be poor, with high rates of mortality and decompensations. Patients attended in community HF units was significantly worse in our country during the study period. Although this may be due in part to the small differences between the characteristics of the patients followed in the different types of units, it seems necessary to improve the network organization of HF care with the aim of achieving greater equity in the treatment of HF in Spain.