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Impact of diabetes mellitus on mortality in patients with acute heart failure: a prospective cohort study

 Min Gyu Kong  ;  Se Yong Jang  ;  Jieun Jang  ;  Hyun-Jai Cho  ;  Sangjun Lee  ;  Sang Eun Lee  ;  Kye Hun Kim  ;  Byung-Su Yoo  ;  Seok-Min Kang  ;  Sang Hong Baek  ;  Dong-Ju Choi  ;  Eun-Seok Jeon  ;  Jae-Joong Kim  ;  Myeong-Chan Cho  ;  Shung Chull Chae  ;  Byung-Hee Oh  ;  Soo Lim  ;  Sue K Park  ;  Hae-Young Lee 
 CARDIOVASCULAR DIABETOLOGY, Vol.19(1) : 49, 2020-05 
Journal Title
Issue Date
Acute Disease ; Aged ; Aged, 80 and over ; Biomarkers / blood ; Blood Glucose / drug effects ; Blood Glucose / metabolism ; Diabetes Mellitus / blood ; Diabetes Mellitus / diagnosis ; Diabetes Mellitus / drug therapy ; Diabetes Mellitus / mortality* ; Female ; Glycated Hemoglobin A / metabolism ; Heart Failure / diagnosis ; Heart Failure / mortality* ; Heart Failure / physiopathology ; Heart Failure / therapy ; Hospital Mortality ; Humans ; Hypoglycemic Agents / therapeutic use ; Male ; Middle Aged ; Prognosis ; Prospective Studies ; Registries ; Republic of Korea / epidemiology ; Risk Assessment ; Risk Factors ; Stroke Volume ; Time Factors ; Ventricular Function, Left
Acute heart failure ; Diabetes mellitus ; Glycemic control ; Left ventricular ejection fraction
Background: Although more than one-third of the patients with acute heart failure (AHF) have diabetes mellitus (DM), it is unclear if DM has an adverse impact on clinical outcomes. This study compared the outcomes in patients hospitalized for AHF stratified by DM and left ventricular ejection fraction (LVEF).

Methods: The Korean Acute Heart Failure registry prospectively enrolled and followed 5625 patients from March 2011 to February 2019. The primary endpoints were in-hospital and overall all-cause mortality. We evaluated the impact of DM on these endpoints according to HF subtypes and glycemic control.

Results: During a median follow-up of 3.5 years, there were 235 (4.4%) in-hospital mortalities and 2500 (46.3%) overall mortalities. DM was significantly associated with increased overall mortality after adjusting for potential confounders (adjusted hazard ratio [HR] 1.11, 95% confidence interval [CI] 1.03-1.22). In the subgroup analysis, DM was associated with higher a risk of overall mortality in heart failure with reduced ejection fraction (HFrEF) only (adjusted HR 1.14, 95% CI 1.02-1.27). Inadequate glycemic control (HbA1c ≥ 7.0% within 1 year after discharge) was significantly associated with a higher risk of overall mortality compared with adequate glycemic control (HbA1c < 7.0%) (44.0% vs. 36.8%, log-rank p = 0.016).

Conclusions: DM is associated with a higher risk of overall mortality in AHF, especially HFrEF. Well-controlled diabetes (HbA1c < 7.0%) is associated with a lower risk of overall mortality compared to uncontrolled diabetes. Trial registration ClinicalTrial.gov, NCT01389843. Registered July 6, 2011. https://clinicaltrials.gov/ct2/show/NCT01389843.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Seok Min(강석민) ORCID logo https://orcid.org/0000-0001-9856-9227
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