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Effect of Tofogliflozin on Systolic and Diastolic Cardiac Function in Type 2 Diabetic Patients

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Abstract

Purpose

Recent studies have shown that sodium glucose cotransporter 2 (SGLT2) inhibitors have a favorable effect on cardiovascular events in diabetic patients. However, the underlying mechanism associated with a favorable outcome has not been clearly identified. The purpose of this study was to investigate the effect of tofogliflozin, SGLT2 inhibitor, on systolic and diastolic cardiac function in patients with type 2 diabetes mellitus (T2DM).

Methods

We enrolled 26 consecutive T2DM out-patients on glucose-lowering drugs who initiated tofogliflozin and underwent echocardiography before and ≥ 6 months after tofogliflozin administration. During this period, we also enrolled 162 T2DM out-patients taking other glucose-lowering drugs as a control group. Propensity score analysis was performed to match the patient characteristics. As a result, 42 patients (tofogliflozin group 21 patients and control group 21 patients) were finally used for analysis. Left ventricular systolic function was assessed by measuring 2D-echocardiographic left ventricular ejection fraction (LVEF) and diastolic cardiac function by pulsed wave Doppler-derived early diastolic velocity (E/e′).

Results

There were no significant differences in patient characteristics and echocardiographic parameters at baseline. The change in LVEF from baseline to follow-up was 5.0 ± 6.9% in the tofogliflozin group and − 0.6 ± 5.5% in the control group; difference significant, p = 0.006. The change in E/e′ was − 1.7 ± 3.4 in the tofogliflozin group and 0.7 ± 4.1 in the control group; difference significant, p = 0.024.

Conclusions

In addition to conventional oral glucose-lowering drugs, additional tofogliflozin administration had a favorable effect on left ventricular systolic and diastolic function in patients with T2DM.

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Authors and Affiliations

  1. Department of Cardiology, Kansai Medical University Medical Center, 10-15, Fumizono-cho, Moriguchi, Osaka, 570-8507, Japan

    Munemitsu Otagaki, Koichiro Matsumura, Hiromi Kin, Hiroshi Matsumoto, Hiroki Takahashi, Haengnam Park, Yoshihiro Yamamoto & Tetsuro Sugiura

  2. Division of Cardiology, Department of Medicine II, Kansai Medical University, Hirakata, Japan

    Kenichi Fujii, Hiroki Shibutani & Ichiro Shiojima

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  1. Munemitsu Otagaki
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  2. Koichiro Matsumura
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Correspondence to Koichiro Matsumura.

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The study was approved by the ethical committee of the Kansai Medical University Medical Center and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Otagaki, M., Matsumura, K., Kin, H. et al. Effect of Tofogliflozin on Systolic and Diastolic Cardiac Function in Type 2 Diabetic Patients. Cardiovasc Drugs Ther 33, 435–442 (2019). https://doi.org/10.1007/s10557-019-06892-y

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