Exercise oscillatory breathing in diastolic heart failure: prevalence and prognostic insights

被引:77
作者
Guazzi, Marco [1 ]
Myers, Jonathan [2 ]
Peberdy, Mary Ann [3 ]
Bensimhon, Daniel [4 ]
Chase, Paul [4 ]
Arena, Ross [3 ]
机构
[1] Univ Milan, Cardiopulm Unit, San Paolo Hosp, I-20142 Milan, Italy
[2] VA Palo Alto Hlth Care Syst, Palo Alto, CA USA
[3] Virginia Commonwealth Univ, Richmond, VA USA
[4] LeBauer Cardiovasc Res Fdn, Greensboro, NC USA
关键词
D O I
10.1093/eurheartj/ehn437
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Exercise intolerance occurs in both systolic and diastolic heart failure (HF). Exercise oscillatory breathing (EOB) is a powerful predictor of survival in patients with systolic HF. In diastolic HF, EOB prevalence and prognostic impact are unknown. A total of 556 HF patients (405 with systolic HF and 151 with diastolic HF) underwent cardiopulmonary exercise testing (CPET). Diastolic HF was defined as signs and symptoms of HF, a left ventricular ejection fraction >= 50%, and a Doppler early (E) mitral to early mitral annulus ratio (E') >= 8. CPET responses, EOB prevalence and its ability to predict cardiac-related events were examined. EOB prevalence in systolic and diastolic HF was similar (35 vs. 31%). Compared with the patients without EOB, patients with EOB and either systolic or diastolic HF had a higher New York Heart Association class, lower peak VO2 and higher E/E' ratio (all P < 0.01). Univariate Cox regression analysis demonstrated that peak VO2, VE/VCO2 slope and EOB all were significant predictors of cardiac events in both systolic and diastolic HF. Multivariable analysis revealed that EOB was retained as a prognostic marker in systolic HF and was the strongest predictor of cardiac events in diastolic HF. EOB occurrence is similar in diastolic and systolic HF and provides relevant clues for the identification of diastolic HF patients at increased risk of adverse events.
引用
收藏
页码:2751 / 2759
页数:9
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