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Sodium-Glucose Co-transporter-2 Inhibitors and Cardiac Function Parameters: A Network Meta-analysis and Trial
Kannan Sridharan1, Gowri Sivaramakrishnan2
1Department of Pharmacology & Therapeutics, College of Medicine & Medical Sciences, Arabian Gulf University, Manama, Kingdom of Bahrain.
Background:
Sodium-glucose Co-transporter-2 Inhibitors (SGLT2is) are recommended for heart failure based on clinical outcomes. However, there is a lack of evidence linking SGLT2is with changes in cardiac function parameters.
Aim:
This study aimed to systematically evaluate the literature assessing the impact of SGLT2is on various cardiac parameters.
Methods:
Randomized clinical trials assessing any of the cardiac function parameters (atrial, valvular, pulmonary artery, and left ventricular) with SGLT2is were included. Mixed treatment comparison pooled estimates (mean differences (MD); 95% confidence intervals (95% CI)) were generated using a random-effects model and validated using trial sequential and bootstrap analyses. Intraclass differences and sub-group analysis in heart failure were evaluated.
Results:
Thirty-four studies (2930 participants) were included in the review, of which 31 (2616 participants) were included in the meta-analysis. SGLT2is were associated with a significant increase in left ventricular ejection fraction (MD: 0.73; 95% CI: 0.09, 1.37%) and reductions in left ventricular mass (MD: -0.21; 95% CI: -0.39, -0.03 g), left ventricular mass index (MD: -0.22; 95% CI: - 0.36, -0.08 g/m2), left ventricular end-diastolic diameter (MD: -0.71; 95% CI: -1.29, -0.13 cm), left ventricular end-diastolic volume (MD: -0.56; 95% CI: -1.02, -0.1 ml), left atrial volume index (MD: -0.35; 95% CI: -0.58, -0.04 ml/m²), and pulmonary artery systolic pressure (MD: -1.08; 95% CI: - 1.94, -0.21 mmHg). Significant improvements in various cardiac parameters were observed in studies conducted on heart failure.
Conclusion:
The findings of this study assessing cardiac function parameters support the guidelines recommending SGLT2 inhibitors in heart failure, which are primarily based on clinical outcomes.
Insights
Sodium-glucose Co-transporter-2 Inhibitors (SGLT2is) improve cardiac function in heart failure patients. This meta-analysis shows SGLT2is enhance left ventricular ejection fraction and reduce cardiac mass, supporting their guideline recommendations.
Area of Science:
- Cardiology
- Pharmacology
- Internal Medicine
Background:
- Sodium-glucose Co-transporter-2 Inhibitors (SGLT2is) are recommended for heart failure management based on clinical outcomes.
- Limited evidence exists linking SGLT2is to specific changes in cardiac function parameters.
Purpose of the Study:
- To systematically evaluate the impact of SGLT2is on various cardiac function parameters.
- To synthesize evidence from randomized clinical trials on SGLT2i effects on cardiac metrics.
Main Methods:
- Systematic review and meta-analysis of 34 randomized clinical trials involving 2930 participants.
- Pooled estimates of mean differences (MD) with 95% confidence intervals (95% CI) using random-effects models.
- Validation through trial sequential and bootstrap analyses; subgroup analysis for heart failure.
Main Results:
- SGLT2is significantly increased left ventricular ejection fraction (MD: 0.73%).
- SGLT2is significantly reduced left ventricular mass, mass index, end-diastolic diameter, end-diastolic volume, left atrial volume index, and pulmonary artery systolic pressure.
- Significant improvements in cardiac parameters were noted in heart failure subgroups.
Conclusions:
- Findings support current guidelines recommending SGLT2 inhibitors for heart failure.
- SGLT2is demonstrate beneficial effects on cardiac function parameters, complementing clinical outcome data.
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