PMID- 26269338 OWN - NLM STAT- MEDLINE DCOM- 20160722 LR - 20181202 IS - 0253-3758 (Print) IS - 0253-3758 (Linking) VI - 43 IP - 3 DP - 2015 Mar TI - [Peak oxygen consumption, NT-proBNP and echocardiographic changes in patients with chronic heart failure]. PG - 206-11 AB - OBJECTIVE: To assess peak oxygen consumption (peak VO(2)) derived from cardiopulmonary exercise testing (CPET), concentrations of NT-proBNP and echocardiographic changes in patients with chronic heart failure (CHF) and reduced left ventricular ejection fraction (LVEF, <40%). METHODS: Seventy patients were included and divided into two groups according to the New York Heart Association (NYHA) classification: NYHA II group (17 cases) and NYHA III-IV group (53 cases). The basic clinical information, plasma concentration of NT-proBNP at rest, echocardiographic parameters and peak VO(2)from CPET were compared between two groups. Correlation among peak VO(2), NT-proBNP and echocardiographic parameters in this patient cohort was assessed and their abilities to discriminate the NYHA III-IV grade were analyzed through c-Statistic. RESULTS: Left atrial diameter ((51.3 +/- 7.2) mm vs. (44.0+/-7.4) mm, P<0.001) was larger, plasma concentration of NT-proBNP (1 379-4 399 pmol/L vs. 1 109-2 356 pmol/L, P<0.01) was higher and peak VO(2)((13.4 +/- 3.5) ml.kg(-)(1).min(-)(1) vs. (18.2 +/- 3.7) ml.kg(-)(1).min(-)(1), P<0.001) were significantly lower in NYHA III-IV group than those in NYHA II group. However, left ventricular end-diastolic diameter (LVEDD) and LVEF were similar between two groups. Peak VO(2)correlated significantly with NT-proBNP (r=-0.311, P<0.01), but neither peak VO(2)nor NT-proBNP correlated with echocardiographic parameters (LA, LVEDD and LVEF). ROC analysis showed that peak VO(2)had the strongest discriminatory power for detecting NYHA III-IV grade patients (AUC=0.835, P<0.001), followed by the NT-proBNP (AUC=0.723, P<0.01). CONCLUSION: Peak VO(2)is a more sensitive parameter to detect the disease aggravation (NYHA III-IV grade) of the CHF patients with reduced LVEF compared to plasma NT-proBNP and echocardiographic parameters (LA, LVEDD, LVEF). FAU - Lu, Zhinan AU - Lu Z AD - State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China. FAU - Sun, Xingguo AU - Sun X AD - State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China; Email: xgsun@labiomed.org. FAU - Hu, Shengshou AU - Hu S AD - State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China. FAU - Huang, Jie AU - Huang J AD - State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China. LA - chi PT - Journal Article PL - China TA - Zhonghua Xin Xue Guan Bing Za Zhi JT - Zhonghua xin xue guan bing za zhi JID - 7910682 RN - 0 (Peptide Fragments) RN - 0 (pro-brain natriuretic peptide (1-76)) RN - 114471-18-0 (Natriuretic Peptide, Brain) SB - IM MH - Chronic Disease MH - *Echocardiography MH - Exercise Test MH - Heart MH - *Heart Failure MH - Humans MH - Natriuretic Peptide, Brain MH - *Oxygen Consumption MH - Peptide Fragments MH - ROC Curve MH - Ventricular Function, Left EDAT- 2015/08/14 06:00 MHDA- 2016/07/23 06:00 CRDT- 2015/08/14 06:00 PHST- 2015/08/14 06:00 [entrez] PHST- 2015/08/14 06:00 [pubmed] PHST- 2016/07/23 06:00 [medline] PST - ppublish SO - Zhonghua Xin Xue Guan Bing Za Zhi. 2015 Mar;43(3):206-11.