Abstract
The presence of left ventricular hypertrophy (LVH) is associated with an increase in cardiovascular morbidity and mortality in hypertensive patients. We investigated the diagnostic value of the N-terminal probrain natriuretic peptide (NT-proBNP) level for detecting LVH in hypertensive patients with a conserved left ventricular ejection fraction. The study involved 27 consecutive patients. Cardiac magnetic resonance imaging was performed to determine left ventricular mass and the plasma NT-proBNP level was measured. A significant correlation was found between the NT-proBNP level and left ventricular mass (r=0.598; P=.001). Use of a cut-off point of 35 pg/mL enabled the presence of LVH to be identified with a sensitivity of 100% (95% confidence interval [CI], 69%-100%) and a specificity of 70.6% (95% CI, 44.1%-89.6%). The area under the receiver operating characteristic (ROC) curve was 0.867 (95% CI, 0.73-1; P< .05). The plasma NT-proBNP level may be useful for identifying patients with LVH.
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