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- W2062043742 abstract "Background: Diagnosis of left ventricular (LV) diastolic dysfunction by blood testing is expedient in the clinical setting. Methods and Results: In 98 patients with LV ejection fraction ≥50% who underwent cardiac catheterization for evaluation of coronary artery disease, LV pressure (LVP) was measured using a catheter-tipped micromanometer. A time constant, τ, of LV relaxation was computed from LVP decay; the inertia force (IF) of late systolic aortic flow, a surrogate index of LV elastic recoil, was also computed from the LVP−dP/dt relation (phase loop). Patients were classified into 2 groups: those with impaired LV relaxation (τ ≥48ms) and those with preserved LV relaxation (τ <48ms). Patients were also classified into another 2 groups: those with IF (≥0.5mmHg) and those without (<0.5mmHg). Plasma N-terminal pro-brain natriuretic peptide (NT-proBNP) ≥56.5pg/ml had a sensitivity of 100%, specificity of 52.5%, and negative predictive value of 100% for identifying impaired LV relaxation. NT-proBNP ≥244.5pg/ml had a sensitivity of 62.5% and specificity of 93.9% for detecting lack of IF. Conclusions: NT-proBNP level <56.5pg/ml could be used as a value to sensitively identify patients with preserved LV systolic and diastolic function among those with coronary artery disease. NT-proBNP level ≥244.5pg/ml is able to specifically detect a lack of IF and has potential for specifically diagnosing LV isolated diastolic dysfunction. (Circ J 2012; 76: 2599–2605)" @default.
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- W2062043742 date "2012-01-01" @default.
- W2062043742 modified "2023-09-25" @default.
- W2062043742 title "Plasma N-Terminal Pro-Brain Natriuretic Peptide Levels Identifying Left Ventricular Diastolic Dysfunction in Patients With Preserved Ejection Fraction" @default.
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- W2062043742 doi "https://doi.org/10.1253/circj.cj-12-0406" @default.
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