The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure.
BACKGROUND:Cardiopulmonary exercise testing has been widely used to risk stratify patients with chronic heart failure (CHF). Peak oxygen consumption (peakVO2) was regarded as a powerful predictor of survival, as it is a surrogate for peak cardiac output (CO), which by most is considered the "tr...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2016-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4726448?pdf=render |
| _version_ | 1828804440463769600 |
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| author | Yuqin Shen Haoming Song Wenlin Ma Zhu Gong Yi Ni Xiaoyu Zhang Wenjun Xu Jinfa Jiang Lin Che Jiahong Xu Wenwen Yan Lin Zhou Guanghe Li Qiping Zhang Lemin Wang |
| author_facet | Yuqin Shen Haoming Song Wenlin Ma Zhu Gong Yi Ni Xiaoyu Zhang Wenjun Xu Jinfa Jiang Lin Che Jiahong Xu Wenwen Yan Lin Zhou Guanghe Li Qiping Zhang Lemin Wang |
| author_sort | Yuqin Shen |
| collection | DOAJ |
| description | BACKGROUND:Cardiopulmonary exercise testing has been widely used to risk stratify patients with chronic heart failure (CHF). Peak oxygen consumption (peakVO2) was regarded as a powerful predictor of survival, as it is a surrogate for peak cardiac output (CO), which by most is considered the "true" measure of heart failure. Therefore, it is reasonable to hypothesize that CO is an even stronger predictor than peak VO2. The present study is aimed to investigate the prognostic value of peak cardiac power output (peak CPO) in comparison with peakVO2 in Chinese patients with CHF. METHODS:Participants provided written informed consent to participate in this study. Totally 129 patients with CHF underwent symptom-limited cardiopulmonary exercise testing (CPET), with mean age 59.1 ± 11.4 years, 87.6% male, 57.4% ischemic etiology, body mass index (BMI) 24.7 ± 3.7 kg/m(2) and LVEF 38 ± 9%. CO was measured using an inert gas rebreathing method. The primary endpoints are cardiac deaths. RESULTS:Over median 33.7-month follow-up, 19 cardiac deaths were reported. Among peak VO2,VE/VCO2 slope and Peak CPO, their area under ROC were 0.64, 0.67, 0.68, respectively (Ρ<0.05).The optimal thresholds for predicting cardiac deaths were peak VO2 ≤ 13.4 ml.kg(-1).min(-1), and VE/VCO2 slope ≥ 39.3 and peak CPO≤ 1.1 respectively by ROC analysis. Finally, in patients with a peak VO2 ≤ 13.4 ml.kg(-1).min(-1) those with peak CPO>1.1W had better survival than those with peak CPO ≤ 1.1W. However, by multivariate analysis adjusted for age, sex, BMI, resting heart rate, LVMI, LVEF, Peak CPO was not an independent predictor of cardiac deaths (P> 0.05). CONCLUSIONS:Peak CPO was not a predictor of cardiac death in Chinese CHF patients. |
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| id | doaj.art-9f4e7c8e370749cf97f6e064298d8b88 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-12T07:40:40Z |
| publishDate | 2016-01-01 |
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| spelling | doaj.art-9f4e7c8e370749cf97f6e064298d8b882022-12-22T00:32:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01111e014742310.1371/journal.pone.0147423The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure.Yuqin ShenHaoming SongWenlin MaZhu GongYi NiXiaoyu ZhangWenjun XuJinfa JiangLin CheJiahong XuWenwen YanLin ZhouGuanghe LiQiping ZhangLemin WangBACKGROUND:Cardiopulmonary exercise testing has been widely used to risk stratify patients with chronic heart failure (CHF). Peak oxygen consumption (peakVO2) was regarded as a powerful predictor of survival, as it is a surrogate for peak cardiac output (CO), which by most is considered the "true" measure of heart failure. Therefore, it is reasonable to hypothesize that CO is an even stronger predictor than peak VO2. The present study is aimed to investigate the prognostic value of peak cardiac power output (peak CPO) in comparison with peakVO2 in Chinese patients with CHF. METHODS:Participants provided written informed consent to participate in this study. Totally 129 patients with CHF underwent symptom-limited cardiopulmonary exercise testing (CPET), with mean age 59.1 ± 11.4 years, 87.6% male, 57.4% ischemic etiology, body mass index (BMI) 24.7 ± 3.7 kg/m(2) and LVEF 38 ± 9%. CO was measured using an inert gas rebreathing method. The primary endpoints are cardiac deaths. RESULTS:Over median 33.7-month follow-up, 19 cardiac deaths were reported. Among peak VO2,VE/VCO2 slope and Peak CPO, their area under ROC were 0.64, 0.67, 0.68, respectively (Ρ<0.05).The optimal thresholds for predicting cardiac deaths were peak VO2 ≤ 13.4 ml.kg(-1).min(-1), and VE/VCO2 slope ≥ 39.3 and peak CPO≤ 1.1 respectively by ROC analysis. Finally, in patients with a peak VO2 ≤ 13.4 ml.kg(-1).min(-1) those with peak CPO>1.1W had better survival than those with peak CPO ≤ 1.1W. However, by multivariate analysis adjusted for age, sex, BMI, resting heart rate, LVMI, LVEF, Peak CPO was not an independent predictor of cardiac deaths (P> 0.05). CONCLUSIONS:Peak CPO was not a predictor of cardiac death in Chinese CHF patients.http://europepmc.org/articles/PMC4726448?pdf=render |
| spellingShingle | Yuqin Shen Haoming Song Wenlin Ma Zhu Gong Yi Ni Xiaoyu Zhang Wenjun Xu Jinfa Jiang Lin Che Jiahong Xu Wenwen Yan Lin Zhou Guanghe Li Qiping Zhang Lemin Wang The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure. PLoS ONE |
| title | The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure. |
| title_full | The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure. |
| title_fullStr | The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure. |
| title_full_unstemmed | The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure. |
| title_short | The Prognostic Value of Peak Cardiac Power Output in Chinese Patients with Chronic Heart Failure. |
| title_sort | prognostic value of peak cardiac power output in chinese patients with chronic heart failure |
| url | http://europepmc.org/articles/PMC4726448?pdf=render |
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