期刊
CIRCULATION JOURNAL
卷 76, 期 1, 页码 127-136出版社
JAPANESE CIRCULATION SOC
DOI: 10.1253/circj.CJ-11-0778
关键词
Echocardiography; Heart failure; Prognosis
Background: Normal values and the prognostic significance of right ventricle (RV)-2D strain in chronic heart failure (CHF) patients are unknown. Methods and Results: Between 2005 and 2010, we prospectively enrolled 43 controls and 118 stable CHF patients. Standard echocardiographic variables, tricuspid annular plane systolic excursion, peak systolic velocity of tricuspid annular motion using tissue Doppler imaging, and RV and left ventricle (LV) 2D-strain were measured. The primary outcome was death or emergency transplantation or emergency ventricular assist device implantation or acute heart failure. RV-2D strain was measurable in 39 controls (58 +/- 17 years, 50% men), whose median value was -30% (95% confidence interval [95%CI], -39%; -20%); and in 104 CHF patients (80% men, mean age 57 +/- 11 years, and mean LV ejection fraction 29%+/- 8%), whose median value was -19% (95%CI, -34%; -9%). During the mean follow-up of 37 +/- 14 months, 44 experienced the primary outcome. By Cox proportional hazards multivariate analysis, only RV-2D strain and log B-type natriuretic peptide independently predicted experiencing the primary outcome within the first year. The best RV-2D strain cut-off by receiver-operating characteristics analysis was -21%, and patients with values >-21% were at greatest risk (chi(2)-log-rank test=14.1, P<0.0001). Conclusions: RV-2D strain is a strong independent predictor of severe adverse events in patients with CHF and may be superior to other systolic RV or LV echocardiographic variables. (Circ J 2012; 76: 127-136)
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