Long-term effects of SGLT2 inhibitors on arrhythmias: a systematic review and meta-analysis

Peipei Li1, Weiwei Chen1, Rui Chen2

  • 1Department of Cardiology, Jilin Provincial Cardiovascular Research Institute, China-Japan Union Hospital of Jilin University, Changchun, China.

PubMed
Abstract

Insights

Sodium-glucose co-transporter 2 (SGLT2) inhibitors significantly lower the risk of atrial fibrillation and atrial flutter. However, these SGLT2 inhibitors do not impact the risk of ventricular tachycardia, ventricular fibrillation, or sinus bradycardia.

Area of Science:

  • Cardiology
  • Pharmacology

Background:

  • Sodium-glucose co-transporter 2 (SGLT2) inhibitors are recognized for their cardioprotective effects in heart failure treatment.
  • The impact of SGLT2 inhibitors on various cardiac arrhythmias remains incompletely understood.

Purpose of the Study:

  • To systematically review and meta-analyze the long-term effects of SGLT2 inhibitors on different types of arrhythmias.
  • To evaluate the efficacy of SGLT2 inhibitors in reducing the incidence of atrial fibrillation, atrial flutter, ventricular tachycardia, ventricular fibrillation, and sinus bradycardia.

Main Methods:

  • A systematic search of major databases (PubMed, Embase, Web of Science, ClinicalTrials.gov) was conducted up to June 30, 2024.
  • Included were randomized controlled trials (RCTs) with a follow-up of at least 52 weeks.
  • Primary outcome: atrial fibrillation/flutter; Secondary outcomes: ventricular tachycardia, ventricular fibrillation, sinus bradycardia. Pooled risk ratios (RRs) with 95% confidence intervals (CIs) were calculated.

Main Results:

  • Thirty-nine RCTs with 107,770 participants were analyzed.
  • SGLT2 inhibitors significantly reduced the risk of atrial fibrillation/flutter compared to placebo (RR 0.86; 95%CI, 0.77-0.95; P = 0.003).
  • No significant differences were observed for ventricular tachycardia, ventricular fibrillation, or sinus bradycardia. Dose-dependent effects on atrial fibrillation/flutter were not statistically significant.

Conclusions:

  • SGLT2 inhibitors demonstrate a significant benefit in reducing the risk of atrial fibrillation and atrial flutter.
  • These agents do not appear to influence the risk of ventricular arrhythmias or sinus bradycardia.
  • The incidence of atrial fibrillation/flutter was not significantly affected by different doses of SGLT2 inhibitors.

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