Abstract
Background Although more than one third of the patients with acute heart failure (AHF) have diabetes mellitus (DM), it is unclear whether DM exerts adverse impact on clinical outcomes. This study aimed to compare the outcomes in patients hospitalized for AHF in accordance with DM and left ventricular ejection fraction (LVEF). Methods The Korean Acute Heart Failure registry prospectively enrolled and completed follow-up of 5,625 patients from March 2011 to February 2019. Primary endpoints were in-hospital and overall all-cause mortality. We evaluated the impact of DM on these mortalities according to HF subtypes and glycemic control. Results DM was significantly associated with increased long-term mortality (adjusted hazard ratio [HR], 1.12; 95% confidence interval [CI], 1.02-1.22) even after adjusting for potential confounders. In subgroup analysis according to LVEF, DM was associated with higher long-term mortality in only HF with reduced ejection fraction (HFrEF) (adjusted HR, 1.14; 95% CI, 1.02-1.27). Inadequate glycemic control defined by HbA1c ≥ 7.0% within 1 year after discharge was significantly associated with higher long-term mortality compared to adequate glycemic control (HbA1c <7.0%) (44.0% vs. 36.8%; Log-rank p =0.016). Conclusions This large registry data showed that DM and inadequate glycemic control were significantly associated with increased long-term mortality in AHF, especially HFrEF. Tight glucose control is required to mitigate long-term mortality.
P2814New-onset (De-Novo) acute heart failure versus acute decompensated chronic heart failure: differences in early intermediate and long-term mortality
