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High sensitivity troponin T and I reflect mitral annular plane systolic excursion being assessed by cardiac magnetic resonance imaging.

High sensitivity troponin T and I reflect mitral annular plane systolic excursion being assessed by cardiac magnetic resonance imaging.
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Natale M, Behnes M, Kim SH, Hoffmann J, Reckord N, Hoffmann U, Budjan J, Lang S, Borggrefe M, Papavassiliu T, Bertsch T, Akin I,


Natale M, Behnes M, Kim SH, Hoffmann J, Reckord N, Hoffmann U, Budjan J, Lang S, Borggrefe M, Papavassiliu T, Bertsch T, Akin I, (click to view)

Natale M, Behnes M, Kim SH, Hoffmann J, Reckord N, Hoffmann U, Budjan J, Lang S, Borggrefe M, Papavassiliu T, Bertsch T, Akin I,

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European journal of medical research 2017 10 0422(1) 38 doi 10.1186/s40001-017-0281-x
Abstract
PURPOSE
This study aims to evaluate the association between high sensitivity troponins (hsTn) and mitral annular plane systolic excursion (MAPSE) in patients undergoing cardiac magnetic resonance imaging (cMRI).

METHODS
Patients undergoing cMRI were prospectively enrolled. Patients with right ventricular dysfunction (< 50%) were excluded. Blood samples for measurements of hsTn and amino-terminal pro-brain natriuretic peptide (NT-proBNP) were collected at the time of cMRI. RESULTS
84 patients were included. Median left ventricular ejection fraction was 59% (IQR 51-64%). HsTn were correlated inversely with MAPSE within multivariable linear regression models (hsTnI: Beta – 0.19; T – 1.96; p = 0.05; hsTnT: Beta – 0.26; T – 3.26; p = 0.002). HsTn increased significantly according to decreasing stages of impaired MAPSE (p < 0.003). HsTn discriminated patients with impaired MAPSE < 11 mm (hsTnT: AUC = 0.67; p = 0.008; hsTnI: AUC = 0.64; p = 0.03) and < 8 mm (hsTnT: AUC = 0.79; p = 0.0001; hsTnI: AUC = 0.75; p = 0.001) and were still significantly associated in multivariable logistic regression models with impaired MAPSE < 11 mm (hsTnT: OR = 4.71; p = 0.002; hsTnI: OR = 4.22; p = 0.009). CONCLUSIONS
This study demonstrates that hsTn are able to reflect MAPSE being assessed by cMRI.

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