title: Evaluation of therelationship between epicardial adipose tissue and myocardial performance (Tei) index.
abstract: OBJECTIVE
  Epicardial adipose tissue (EAT) is a tissue around the heart with visceral adipose properties. It can affect the structure and functions of the myocardium and coronary arteries through inflammatory markers and regulators. The myocardial performance (Tei) index is a parameter capable of globally assessing systolic and diastolic heart functions. This study investigated the relation between EAT thickness and the Tei index.
  
  
  METHODS
  The study population was selected from patients without structural heart disease. EAT thickness was measured with two-dimensional imaging in parasternal long axis view and from the anterior face of the right ventricle. Tei index measurement was calculated with tissue Doppler echocardiography from the mitral lateral annulus. The relation between the Tei index and EAT was assessed using multivariate linear regression analysis.
  
  
  RESULTS
  Forty-three patients (36 female, 7 male; mean age 50.2 ± 10.6 years) were included in the study. Mean Tei index was 0.39 ± 0.09, and mean EAT thickness 4.7 ± 2.4 mm. A significant correlation was determined between tissue Doppler Tei index and EAT thickness at correlation analysis (r = 0.522, P < 0.001). EAT thickness was independently correlated with Tei index at multivariate linear regression analysis (Beta = 0.443, t = 3.522, P = 0.001).
  
  
  CONCLUSIONS
  EAT thickness is independently correlation with Tei index. Increased EAT thickness may therefore be a predictor of left ventricular dysfunction.
authors.affiliation: Faculty of Medicine, Karadeniz Technical University Trabzon, Turkey.
authors.forename: Sahin
authors.initials: S
authors.lastname: Kaplan
authors.affiliation: Department of Cardiology, Caycuma State Hospital Zonguldak, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Oztürk
authors.affiliation: Department of Cardiology, Ahi Evren Cardiovascular and Thoracic Surgery Training and Research Hospital Trabzon, Turkey.
authors.forename: Gülhanım
authors.initials: G
authors.lastname: Kırış
authors.affiliation: Internal Medicine, Trabzon Kanuni Education and Research Hospital Trabzon, Turkey.
authors.forename: Safiye Tuba
authors.initials: ST
authors.lastname: Kaplan
keywords: Epicardial adipose tissue; Tei index; tissue Doppler echocardiography