Journal
EUROPEAN HEART JOURNAL-CARDIOVASCULAR IMAGING
Volume 16, Issue 9, Pages 1000-1007Publisher
OXFORD UNIV PRESS
DOI: 10.1093/ehjci/jev027
Keywords
echocardiography; global left ventricular longitudinal strain; diastolic dysfunction; diabetes mellitus; myocardial infarction; stroke
Funding
- FORSS
- Research Council of Southeastern Sweden
- King Gustaf V and Queen Victoria Freemason Foundation, Sweden
- Linkoping University
- Futurum-the Academy for Healthcare, Jonkoping County Council
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Aims The aim of the study was to determine whether left ventricular systolic function, in terms of global left ventricular longitudinal strain (GLS), and diastolic function, expressed as the ratio between early diastolic transmitral flow and mitral annular motion velocities (E/e'), can predict cardiovascular events in patients with diabetes mellitus type 2. Methods and results We prospectively investigated 406 consecutive patients, aged 55-65 years, with diabetes mellitus, who participated in the CARDIPP study. Echocardiography, pulse pressure (pp), and glycosylated haemoglobin (HbA1c) were analysed. Twelve cases of myocardial infarction and seven cases of stroke were identified during the follow-up period of 67 +/- 17 months. Univariate Cox regression analysis showed that E/e' was a strong predictor of cardiovascular events (hazards ratio 1.12; 95% confidence interval 1.06-1.18, P < 0.001). E/e' was prospectively associated with cardiovascular events independent of age, sex, GLS, left ventricular ejection fraction (LVEF), pp, and HbA1c in multivariate analysis. Receiver operating characteristic curves showed that E/e' and HbA1c were the strongest predictors for cardiovascular events, both having an area under the curve (AUC) of 0.71 followed by LVEF with an AUC of 0.65 and GLS of 0.61. In a Kaplan-Meyer analysis, the cumulative probability of an event during the follow-up period was 8.6% for patients with an E/e' ratio >15 compared with 2.6% for patients with E/e' <= 15, P = 0.011. Conclusion In middle-aged patients with type 2 diabetes, E/e' is a strong predictor of myocardial infarction and stroke, comparable with HbA1c and superior to GLS and LVEF.
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