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Arterial-ventricular coupling in type 1 diabetes: arterial stiffness is associated with impaired global longitudinal strain in type 1 diabetes patients-the Thousand & 1 Study

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AIMS: Diabetes is associated with higher arterial stiffness-an early marker of cardiovascular disease. The coupling between arterial stiffness and myocardial function is still unresolved. We investigate associations between arterial stiffness and early myocardial impairment assessed with advanced echocardiography.

METHODS: In 305 type 1 diabetes (T1D) patients without known heart disease and with normal left ventricular ejection fraction (LVEF) (biplane LVEF > 45%), we measured arterial stiffness as pulse wave velocity (PWV) and performed conventional and speckle-tracking echocardiography assessing global longitudinal strain (GLS) as a measure of systolic myocardial function. Associations between PWV and myocardial function were reported as standardized beta values from adjusted regression models including age, sex, mean arterial pressure, body mass index, HbA1c, diabetes duration, estimated glomerular filtration rate, degree of albuminuria, total cholesterol, heart rate and smoking.

RESULTS: Patients were 54 (12) years [mean (SD)], 152 (50%) females, diabetes duration 31 (16) years, HbA1c 65 (12) mmol/mol, LVEF 58 (5) %, GLS -18.2 (2.6) % and PWV 10.2 (3.4) m/s. There was no association between PWV and LVEF (p = 0.93). Conversely, there was a highly significant association between PWV and GLS in crude and multivariable models (standardized β-coefficient 0.25, p < 0.001 and 0.16, p = 0.036, respectively). Also, diastolic function measured as E/e' was highly associated with PWV in crude and multivariable models (standardized β-coefficient 0.43, p < 0.001 and 0.17, p = 0.016, respectively).

CONCLUSIONS: In T1D patients with normal LVEF and without known heart disease, higher arterial stiffness is independently associated with early systolic and diastolic myocardial impairment detectable by advanced echocardiography. Although unable to demonstrate causality, we display a relationship between diabetic angiopathy and diabetic cardiomyopathy (H-3-2009-139 and PROFIL-H-B-2009-056).

OriginalsprogEngelsk
TidsskriftActa Diabetologica
Vol/bind55
Udgave nummer1
Sider (fra-til)21-29
Antal sider8
ISSN0940-5429
DOI
StatusUdgivet - jan. 2018

ID: 51842646