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. 2021 Nov 15:12:777083.
doi: 10.3389/fphar.2021.777083. eCollection 2021.

Effects of Sodium-Glucose Transporter 2 Inhibitors (SGLT2-I) in Patients With Ischemic Heart Disease (IHD) Treated by Coronary Artery Bypass Grafting via MiECC: Inflammatory Burden, and Clinical Outcomes at 5 Years of Follow-Up

Affiliations

Effects of Sodium-Glucose Transporter 2 Inhibitors (SGLT2-I) in Patients With Ischemic Heart Disease (IHD) Treated by Coronary Artery Bypass Grafting via MiECC: Inflammatory Burden, and Clinical Outcomes at 5 Years of Follow-Up

Celestino Sardu et al. Front Pharmacol. .

Abstract

Introduction: Minimally invasive extracorporeal circulation (MiECC) reduced inflammatory burden, leading to best clinical outcomes in patients treated with coronary artery bypass grafting (CABG). Despite this, the patients with type 2 diabetes mellitus (T2DM) vs those without T2DM (non-T2DM) have a worse prognosis, caused by over-inflammation and modulated by sodium-glucose transporter 2 receptors. However, we evaluated the inflammatory burden and clinical outcomes in non-T2DM vs T2DM patients under sodium-glucose transporter 2 inhibitors (SGLT2-I users) vs non-SGLT2-I users at 5 years of follow-up post-CABG via MiECC. Materials and methods: In a multicenter study, we screened consecutive patients with indications to receive CABG. The study endpoints were the inflammatory burden (circulating serum levels of tumor necrosis factor-alpha (TNF-α), interleukin 1 and 6 (IL-1 and IL-6), C-reactive protein (CRP), and leucocytes count) and the clinical outcomes at follow-up of 5 years in non-T2DM vs SGLT2-I users, in non-T2DM vs non-SGLT2-I users, and SGLT2-I users vs non-SGLT2-I users. Results: At baseline, and at one year and 5 years of follow-up, the non-T2DM vs SGLT2-I users, non-T2DM vs non-SGLT2-I users, and SGLT2-I users vs non-SGLT2-I users had the lowest values of IL-1, IL-6, and TNF-α (p < 0.05). At one year of follow-up, SGLT2-I users vs non-T2DM and non-SGLT2-I users vs non-T2DM users had a higher rate of all deaths, cardiac deaths, re-myocardial infarction, repeat revascularization, and stroke, and of the composite endpoint (p < 0.05). In a multivariate Cox regression analysis, the composite endpoint was predicted by IL-1 [2.068 (1.367-3.129)], TNF-α [1.989 (1.081-2.998)], and SGLT2-I [0.504 (0.078-0.861)]. Conclusion: In T2DM patients, the SGLT2-I significantly reduced the inflammatory burden and ameliorated clinical outcomes at 5 years of follow-up post-CABG via MiECC.

Keywords: coronary artery bypass grafting; minimally invasive extracorporeal circulation; multi-vessel coronary stenosis; over-inflammation; sodium-glucose transporter 2 inhibitors; type 2 diabetes mellitus, coronary heart disease.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

FIGURE 1
FIGURE 1
The representation of the study outcomes at 1 year of follow-up in patients without type 2 diabetes mellitus (non-T2DM; green color) vs T2DM under sodium-glucose transporter 2 inhibitors (SLGT2-I users; red color) vs T2DM patients without sodium-glucose transporter 2 inhibitors (non-SLGT2-I users; blue color). We reported the percentage of events for all deaths, cardiac deaths, re-myocardial infarction (re-MI), stroke, revascularization, and composite endpoint. For interleukin 1 (IL-1), interleukin 6 (IL-6), and tumor necrosis factor-alpha (TNF-α), we used the values as mean ± standard deviation. * Is for statistical significant (p-value <0.05) vs T2DM; ** is for statistical significant (p value < 0.05) comparing SGLT2-I users vs non-SLGT2-I users.
FIGURE 2
FIGURE 2
The representation of the study outcomes at 5 years of follow-up in patients without type 2 diabetes mellitus (non-T2DM; green color) vs T2DM under sodium-glucose transporter 2 inhibitors (SLGT2-I users; red color) vs T2DM patients without sodium-glucose transporter 2 inhibitors (non-SLGT2-I users; blue color). We reported the percentage of events for all deaths, cardiac deaths, re-myocardial infarction (re-MI), stroke, revascularization, and composite endpoint. For interleukin 1 (IL-1), interleukin 6 (IL-6), and tumor necrosis factor-alpha (TNF-α), we used the values as mean ± standard deviation. * Is for statistical significant (p-value < 0.05) vs T2DM; ** is for statistical significant (p value < 0.05) comparing SGLT2-I users vs non–SLGT2-I users.
FIGURE 3
FIGURE 3
Kaplan survival curves in non-diabetics (non-T2DM) vs type 2 diabetes mellitus (T2DM) patients under sodium-glucose transporter 2 inhibitors (SGLT2-I users) vs T2DM patients without SGLT2-I (non-SGLT2-I users) for study clinical outcomes. * is for statistical significant (p < 0.05).

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