Sodium-Glucose Cotransporter-2 Inhibitors and Arrhythmias: A Meta-Analysis of 38 Randomized Controlled Trials
Vikash Jaiswal1, Song Peng Ang2, Danisha Kumar3
1Department of Cardiovascular Research, Larkin Community Hospital, South Miami, Florida, USA.
Insights
Sodium-glucose cotransporter-2 inhibitors (SGLT2i) reduce the risk of atrial arrhythmia and sudden cardiac death (SCD) in patients with type 2 diabetes, heart failure, or kidney disease. However, SGLT2i did not show a reduced risk for ventricular arrhythmia.
Area of Science:
- Cardiology
- Endocrinology
- Nephrology
Background:
- Sodium-glucose cotransporter-2 inhibitors (SGLT2i) are recognized for reducing heart failure hospitalizations and cardiovascular mortality.
- The impact of SGLT2i on arrhythmia and sudden cardiac death (SCD) remains less understood.
Purpose of the Study:
- To investigate the association between SGLT2i use and the risk of arrhythmias and SCD.
- To analyze data from patients with type 2 diabetes mellitus, heart failure (HF), or chronic kidney disease (CKD).
Main Methods:
- A systematic literature search was conducted across PubMed, EMBASE, and Scopus databases.
- Relevant randomized controlled trials (RCTs) published up to February 10, 2023, were included.
- Pooled analysis using a random-effects model was performed to calculate odds ratios (ORs) and 95% confidence intervals (CIs).
Main Results:
- The study included 38 RCTs with 88,704 patients, followed for a mean of 1.6 years.
- SGLT2i significantly reduced the risk of incident atrial arrhythmia (OR: 0.85, P=0.02) and SCD (OR: 0.72, P=0.02).
- No significant difference was observed in the risk of ventricular arrhythmia (OR: 1.03, P=0.77) or cardiac arrest (OR: 0.94, P=0.67).
Conclusions:
- SGLT2i therapy is associated with a lower risk of atrial arrhythmia and SCD in patients with type 2 diabetes mellitus and/or HF or CKD.
- SGLT2i therapy did not demonstrate a reduced risk for ventricular arrhythmia in the studied population.
Background:
Sodium-glucose cotransporter-2 inhibitors (SGLT2i) have shown promising results in reducing hospitalizations from heart failure (HF) and cardiovascular mortality. However, their effect on arrhythmia and sudden cardiac death (SCD) is not well established.
Objectives:
The authors sought to evaluate the association between SGLT2i and the risk of arrhythmias and SCD in patients with type 2 diabetes mellitus, HF, or chronic kidney disease.
Methods:
We performed a systematic literature search on PubMed, EMBASE, and Scopus for relevant randomized controlled trials from inception until February 10, 2023. ORs and 95% CIs were pooled using a random effect model.
Results:
A total of 38 randomized controlled trials with 88,704 patients (48,435 in the SGLT2i group and 40,269 in the control group) were included in the study. The mean age of patients among SGLT2i and control groups was 56.8 and 56.7 years, respectively. The mean follow-up duration was 1.6 years. Pooled analysis of primary and secondary outcomes showed that SGLT2i significantly reduced the risk of incident atrial arrhythmia (OR: 0.85 [95% CI: 0.75-0.98], P = 0.02), SCD (OR: 0.72 [95% CI: 0.55-0.94], P = 0.02) compared with placebo. However, the risk of ventricular arrhythmia (OR: 1.03 [95% CI: 0.84-1.26], P = 0.77) and cardiac arrest (OR: 0.94 [95% CI: 0.72-1.23] P = 0.67) was comparable between both groups of patients.
Conclusions:
SGLT2i therapy was associated with an overall lower risk of atrial arrythmia and SCD in patients with type 2 diabetes mellitus and/or HF or chronic kidney disease. However, SGLT2i therapy was not associated with a lower risk of ventricular arrhythmia.
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