TY - JOUR
T1 - Effect of cardiac resynchronization therapy on broad neurohormone biomarkers in heart failure.
AU - Dong, Ying Xue
AU - Burnett, John C.
AU - Chen, Horng H.
AU - Sandberg, Sharon
AU - Yang, Yan Zhong
AU - Zhang, Yanhua
AU - Chen, Peng Sheng
AU - Cha, Yong Mei
N1 - Funding Information:
Acknowledgements This study was supported by the Scientist Development Grant from AHA Greater Midwest Affiliate AHA 0435347Z and Award for Research in Cardiology Grant from the Mayo Foundation for Medical Education and Research.
Copyright:
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PY - 2011/4
Y1 - 2011/4
N2 - Neurohormonal dysregulation contributes to heart failure (HF) progression. We sought to determine the effect of cardiac resynchronization therapy (CRT) on nerve growth factor (NGF), a biomarker that promotes the maturation and survival of sympathetic nerve endings, and amino-terminal propeptide of type III procollagen (PIIINP), a marker of type III collagen synthesis. This prospective study consisted of 45 consecutive patients who received cardiac resynchronization therapy defibrillator for advanced HF and 20 healthy age-matched controls. New York Heart Association class, distance of 6-min walk, echocardiography and plasma concentrations of NGF, PIIINP, b-type natriuretic peptide (BNP), norepinephrine, and epinephrine were measured before and 6 months after CRT. Response to CRT was defined as 15% or greater reduction in left ventricular end-systolic volume index at 6-month follow-up. The baseline BNP (2.61±0.51 vs. 1.53±0.44 ug/L, P<0.01) and PIIINP (0.88±0.21 vs. 0.71±0.14 μg/L, P=0.01), but not other biomarkers, were elevated in HF compared to controls. Twenty-two of 45 patients (49%) responded to CRT. The responder group demonstrated significant decrease only in BNP level from 2.61±0.51 to 2.31±0.41 μg/L (P=0.04) at 6-month follow-up, paralleling the clinical improvements. The baseline PIIINP, rather than the other biomarkers, was lower in CRT responders than non-responders (0.80±0.20 vs. 0.96±0.19 μg/L, P=0.03). Univariate and multivariate analysis showed that less elevated plasma PIIINP level in HF might be an independent biomarker predicting better response to CRT (odds ratio=0.20, 95% CI=0.03-1.17, P=0.07). The less elevated PIIINP level in HF, which is suggestive of a lesser amount of cardiac fibrosis, has a trend in association with a favorable response to CRT. Contrary to previous reports, NGF levels are not reduced during HF with optimal medical therapy, and there is no NGF rebound in CRT responders.
AB - Neurohormonal dysregulation contributes to heart failure (HF) progression. We sought to determine the effect of cardiac resynchronization therapy (CRT) on nerve growth factor (NGF), a biomarker that promotes the maturation and survival of sympathetic nerve endings, and amino-terminal propeptide of type III procollagen (PIIINP), a marker of type III collagen synthesis. This prospective study consisted of 45 consecutive patients who received cardiac resynchronization therapy defibrillator for advanced HF and 20 healthy age-matched controls. New York Heart Association class, distance of 6-min walk, echocardiography and plasma concentrations of NGF, PIIINP, b-type natriuretic peptide (BNP), norepinephrine, and epinephrine were measured before and 6 months after CRT. Response to CRT was defined as 15% or greater reduction in left ventricular end-systolic volume index at 6-month follow-up. The baseline BNP (2.61±0.51 vs. 1.53±0.44 ug/L, P<0.01) and PIIINP (0.88±0.21 vs. 0.71±0.14 μg/L, P=0.01), but not other biomarkers, were elevated in HF compared to controls. Twenty-two of 45 patients (49%) responded to CRT. The responder group demonstrated significant decrease only in BNP level from 2.61±0.51 to 2.31±0.41 μg/L (P=0.04) at 6-month follow-up, paralleling the clinical improvements. The baseline PIIINP, rather than the other biomarkers, was lower in CRT responders than non-responders (0.80±0.20 vs. 0.96±0.19 μg/L, P=0.03). Univariate and multivariate analysis showed that less elevated plasma PIIINP level in HF might be an independent biomarker predicting better response to CRT (odds ratio=0.20, 95% CI=0.03-1.17, P=0.07). The less elevated PIIINP level in HF, which is suggestive of a lesser amount of cardiac fibrosis, has a trend in association with a favorable response to CRT. Contrary to previous reports, NGF levels are not reduced during HF with optimal medical therapy, and there is no NGF rebound in CRT responders.
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U2 - 10.1007/s10840-011-9551-7
DO - 10.1007/s10840-011-9551-7
M3 - Article
C2 - 21336616
AN - SCOPUS:80051588760
SN - 1383-875X
VL - 30
SP - 241
EP - 249
JO - Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing
JF - Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing
IS - 3
ER -