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Published on: April 17, 2021
Association of In-Hospital Dapagliflozin Initiation with Favorable left Ventricular Remodeling in Patients with Acute
Yongzheng Jiang1, Shengqi Jia2, Dingyuan Tian3
1Department of Cardiology, Affiliated Hospital of Hebei University, 212 Yuhua East Road, Baoding, 071000, China.
Insights
Early dapagliflozin initiation in heart failure patients after myocardial infarction improved cardiac remodeling and reduced hospitalizations. Further trials are needed to confirm these findings for acute myocardial infarction (AMI) patients.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Acute myocardial infarction (AMI) complicated by heart failure presents significant challenges.
- Left ventricular remodeling is a key determinant of outcomes post-AMI.
- Understanding interventions that mitigate adverse remodeling is crucial.
Purpose of the Study:
- To investigate the association between early in-hospital dapagliflozin initiation and left ventricular remodeling.
- To assess the impact of dapagliflozin on cardiac structure and function in revascularized AMI patients with heart failure.
Main Methods:
- Retrospective cohort study of 266 revascularized AMI patients with heart failure.
- Patients stratified by in-hospital dapagliflozin initiation (10 mg daily) post-hemodynamic stabilization.
- Inverse probability of treatment weighting and generalized estimating equations used to analyze changes in left ventricular end-diastolic volume index (LVEDVI) over 12 months.
Main Results:
- Early dapagliflozin initiation showed greater reductions in ventricular volumes (LVEDVI, LVMI) and improved left ventricular ejection fraction (LVEF) recovery.
- No significant difference in functional status (NYHA class) between groups.
- A trend towards reduced major adverse cardiovascular events, primarily driven by fewer heart failure rehospitalizations.
Conclusions:
- In-hospital dapagliflozin initiation in AMI patients with heart failure is linked to favorable cardiac remodeling.
- Associated with a reduction in heart failure rehospitalizations.
- These findings support the need for randomized controlled trials to confirm efficacy.
Purpose:
This was a retrospective cohort study. We examined the association between in-hospital dapagliflozin initiation and left ventricular remodeling in revascularized patients with acute myocardial infarction complicated by heart failure.
Methods:
We stratified 266 revascularized AMI patients with heart failure by in-hospital dapagliflozin (10 mg daily) after hemodynamic stabilization. Inverse probability of treatment weighting was used to balance measured baseline covariates. Weighted generalized estimating equations (GEE) tracked changes in LVEDVI over 12 months.
Results:
Early dapagliflozin initiation was associated with greater reductions in ventricular volumes. By 12 months, the treatment group exhibited greater reductions in LVEDVI and LVMI (Group × Time interaction P < 0.001), together with better LVEF recovery (56.0% vs. 48.9%). Functional status (NYHA) remained comparable between groups (P = 0.154). Clinically, in-hospital dapagliflozin initiation was associated with a numerical reduction in major adverse cardiovascular events (HR 0.49; 95% CI 0.23-1.04; P = 0.063), mainly attributable to fewer heart failure rehospitalizations.
Conclusion:
In this retrospective cohort, in-hospital initiation of dapagliflozin was associated with imaging findings suggestive of favorable remodeling and fewer heart failure rehospitalizations. These hypothesis-generating findings warrant confirmation in large-scale randomized controlled trials.
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