Relation of endothelial and cardiac autonomic function with left ventricle diastolic function in patients with type 2 diabetes mellitus

Saverio Tremamunno, Antonio De Vita, Antonio Villano, Veronica Melita, Gessica Ingrasciotta, Eleonora Ruscio, Monica Filice, Antonio Bisignani, Salvatore Emanuele Ravenna, Linda Tartaglione, Gaetano Emanuele Rizzo, Mauro Di Leo, Tamara Felici, Dario Pitocco, Gaetano Antonio Lanza

Risultato della ricerca: Contributo in rivistaArticolo in rivista

Abstract

Background and aims: Diabetes mellitus (DM) is a risk factor for left ventricle (LV) diastolic dysfunction. Aim of this study was to investigate whether endothelial and/or autonomic dysfunction are associated with LV diastolic dysfunction in DM patients. Methods: We studied 84 non-insulin-dependent type 2 DM (T2DM) patients with no heart disease by assessing: 1) LV diastolic function by echocardiography; 2) peripheral vasodilator function, by measuring flow-mediated dilation (FMD) and nitrate-mediate dilation (NMD); 3) heart rate variability (HRV) on 24-h Holter electrocardiographic monitoring. Results: Twenty-five patients (29.8%) had normal LV diastolic function, while 47 (55.9%) and 12 (14.3%) showed a mild and moderate/severe diastolic dysfunction, respectively. FMD in these 3 groups was 5.25 ± 2.0, 4.95 ± 1.6 and 4.43 ± 1.8% (p = 0.42), whereas NMD was 10.8 ± 2.3, 8.98 ± 3.0 and 8.82 ± 3.2%, respectively (p = 0.02). HRV variables did not differ among groups. However, the triangular index tended to be lower in patients with moderate/severe diastolic dysfunction (p = 0.09) and a significant correlation was found between the E/e’ ratio and both the triangular index (r = −0.26; p = 0.022) and LF amplitude (r = −0.29; p = 0.011). Conclusions: In T2DM patients an impairment of endothelium-independent, but not endothelium-dependent, dilatation seems associated with LV diastolic dysfunction. The possible role of cardiac autonomic dysfunction in diastolic dysfunction deserves investigation in larger populations of patients.
Lingua originaleEnglish
pagine (da-a)1-9
Numero di pagine9
RivistaDiabetes/Metabolism Research and Reviews
Volume38
DOI
Stato di pubblicazionePubblicato - 2022

Keywords

  • cardiac autonomic dysfunction
  • endothelial dysfunction
  • left ventricle diastolic dysfunction
  • type 2 diabetes mellitus

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