Document Classification

Section Type: RESULTS

Text: This new total right/left-volume index correlated with almost all clinically used biomarkers of heart failure : brain natriuretic peptide (r = 0. 691 ; P = 0. 0003), QRS (r = 0. 432 ; P = 0. 039), peak oxygen consumption/kg (r = -0. 479 ; P = 0. 024), ventilatory response to carbon dioxide production at anaerobic threshold (r = 0. 426 ; P = 0. 048), the severity of tricuspid regurgitation (r = 0. 692 ; P = 0. 009), tricuspid valve offset (r = 0. 583 ; P = 0. 004), and tricuspid annular plane systolic excursion (r = 0. 554 ; P = 0. 006).