Abstract
Aims
The study sought to evaluate cardiorespiratory fitness in patients with type 2 diabetes mellitus (DM) with different levels of left ventricular (LV) diastolic dysfunction (LVDD).
Methods
This investigation included 55 controls and 85 uncomplicated diabetic patients, who underwent laboratory analysis, echocardiographic evaluation and cardiopulmonary exercise testing. All DM subjects were separated into 3 groups using the level of LV diastolic function as main criterion: normal, intermediate and LVDD.
Results
Echocardiographic parameters of LV hypertrophy were significantly higher in DM subjects, particularly those with intermediate LV diastolic function and LVDD comparing with controls. The same is valid for parameters of LV diastolic function (E/e′, left atrial volume index and tricuspid regurgitation velocity). Peak oxygen uptake was lower, whereas ventilation/carbon dioxide slope was higher, in DM subjects with intermediate LV diastolic function and LVDD in comparison to controls. In the whole study population HbA1c, LV mass index and mitral E/e′ were independently related with peak oxygen uptake and ventilation/carbon dioxide slope.
Conclusions
LVDD significantly impacted functional capacity in DM patients. Glycemic control, LV mass index and LVDD were independently related with peak oxygen consumption and ventilation/carbon dioxide slope in the study population. These results show that timely diagnosis of LVDD and more intensive antidiabetic treatment could prevent target organ damage in DM patients.
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The Ethics Committee of the University Hospital “Dr. Dragisa Misovic - Dedinje” (DM-058/12) approved the current study, and all participants signed informed consent.
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This study was performed in line with the principles of the Declaration of Helsinki.
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Tadic, M., Suzic-Lazic, J., Vukomanovic, V. et al. Functional capacity and left ventricular diastolic function in patients with type 2 diabetes. Acta Diabetol 58, 107–113 (2021). https://doi.org/10.1007/s00592-020-01600-x
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DOI: https://doi.org/10.1007/s00592-020-01600-x