TY - JOUR
T1 - Associations of tissue doppler imaging with NT-proBNP and hs-TnT
T2 - A pilot study in end-stage renal disease
AU - Dubin, Ruth F.
AU - Beatty, Alexis L.
AU - Teerlink, John R.
AU - Schiller, Nelson B.
AU - Alokozai, Dean
AU - Johansen, Kirsten L.
N1 - Publisher Copyright:
© 2014, Wiley Periodicals, Inc.
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Background: Diastolic dysfunction is common and associated with higher mortality in the end-stage renal disease (ESRD) population. E/E′, a measure derived from tissue Doppler imaging (TDI), is a correlate of left ventricular (LV) filling pressures. E/E′ may be viewed as a confirmatory marker of diastolic dysfunction, but it is not routinely used to quantify diastolic dysfunction. Whether E/E′ is associated with N-terminal brain natriuretic peptide (NT-proBNP) or high sensitivity troponin T (hs-TnT) in this population is not known. Methods: We performed echocardiograms and serology prior to the 2nd or 3rd dialysis session of the week on 35 chronic hemodialysis patients. We compared TDI parameters (E/E′ and E′ alone), traditional categories of diastolic function (normal, impaired, pseudonormal or restrictive), and ejection fraction (EF) as potential predictors of the outcomes NT-proBNP and hs-TnT. Results: Higher E/E′ was associated with higher NT-proBNP (rho 0.48, P = 0.004) and hs-TnT (rho 0.37, P = 0.03). EF did not have statistically significant associations with NT-proBNP (rho -0.2, P = 0.4) or hs-TnT (rho -0.24, P = 0.16). As compared to patients with normal diastolic function, those with impaired or pseudonormal filling patterns did not have significantly different levels of NT-proBNP (P = 0.46); patients in traditional categories of worsened diastolic function actually had lower hs-TnT (P = 0.02). The associations of E/E′ with higher NT-proBNP and hs-TnT persisted after multivariate adjustment for EF, LV mass, and volume status. Conclusions: Tissue Doppler imaging may be more useful in evaluating cardiac function than traditional measures of diastolic dysfunction in the ESRD population.
AB - Background: Diastolic dysfunction is common and associated with higher mortality in the end-stage renal disease (ESRD) population. E/E′, a measure derived from tissue Doppler imaging (TDI), is a correlate of left ventricular (LV) filling pressures. E/E′ may be viewed as a confirmatory marker of diastolic dysfunction, but it is not routinely used to quantify diastolic dysfunction. Whether E/E′ is associated with N-terminal brain natriuretic peptide (NT-proBNP) or high sensitivity troponin T (hs-TnT) in this population is not known. Methods: We performed echocardiograms and serology prior to the 2nd or 3rd dialysis session of the week on 35 chronic hemodialysis patients. We compared TDI parameters (E/E′ and E′ alone), traditional categories of diastolic function (normal, impaired, pseudonormal or restrictive), and ejection fraction (EF) as potential predictors of the outcomes NT-proBNP and hs-TnT. Results: Higher E/E′ was associated with higher NT-proBNP (rho 0.48, P = 0.004) and hs-TnT (rho 0.37, P = 0.03). EF did not have statistically significant associations with NT-proBNP (rho -0.2, P = 0.4) or hs-TnT (rho -0.24, P = 0.16). As compared to patients with normal diastolic function, those with impaired or pseudonormal filling patterns did not have significantly different levels of NT-proBNP (P = 0.46); patients in traditional categories of worsened diastolic function actually had lower hs-TnT (P = 0.02). The associations of E/E′ with higher NT-proBNP and hs-TnT persisted after multivariate adjustment for EF, LV mass, and volume status. Conclusions: Tissue Doppler imaging may be more useful in evaluating cardiac function than traditional measures of diastolic dysfunction in the ESRD population.
KW - Doppler tissue imaging
KW - End-stage renal disease
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U2 - 10.1111/echo.12552
DO - 10.1111/echo.12552
M3 - Article
C2 - 24828699
AN - SCOPUS:84911002864
SN - 0742-2822
VL - 31
SP - 1205
EP - 1212
JO - Echocardiography
JF - Echocardiography
IS - 10
ER -