Introduction

With the growth of the population and increased longevity, non-infectious chronic diseases (NCDs) are still the main causes of poor health worldwide. In a report released by the World Health Organization in 2022 [1], as one of the most common NCDs, type 2 diabetes mellitus (T2DM) has shown an increasing trend in both incidence and mortality over the last 20 years. Cardiovascular complications are viewed as dangerous complications of T2DM culminating in death [2]. Although ischaemic events dominate cardiovascular complications, in the absence of myocardial ischaemia and conditions of hypertension, diabetic cardiomyopathy also carries an increased risk of progression to heart failure [3]. In previous studies in which left ventricular (LV) global longitudinal strain (GLS) was measured using speckle-tracking echocardiography (STE), patients with T2DM who developed myocardial dysfunction could be identified even when LV ejection fraction (LVEF) was preserved [4, 5]. The acquisition of LV global radial, circumferential, and longitudinal strain by cardiovascular magnetic resonance (CMR) tissue tracking also enables the evaluation of myocardial systolic function in T2DM patients [

Conclusion

MW can non-invasively evaluate subclinical global and segmental LV myocardial systolic dysfunction in T2DM patients with and without HT. TC and SBP were independent influencing factors for GCW in T2DM patients with and without HT. Regulating total cholesterol levels and controlling blood pressure in T2DM patients with and without HT might reduce the impairment of LV myocardial systolic function.

Limitations

There are still some limitations in the present study. First, patients with poor image quality due to obesity, smoking, etc., were excluded, so this exclusion criterion may be biased for different operators. Furthermore, the present study was a single-centre study, and multicentre large sample studies are needed to further provide reference value for this finding.