Heart Failure With Recovered Ejection Fraction in Patients With Nonischemic Cardiomyopathy: Characteristics, Outcomes, and Long-term Follow-up

被引:12
作者
Hammer, Yoav [1 ,3 ]
Yosef, Matheos [2 ]
Khalatbari, Shokoufeh [2 ]
Aaronson, Keith d. [1 ]
机构
[1] Univ Michigan, Div Cardiovasc Dis, Ann Arbor, MI USA
[2] Univ Michigan, Michigan Inst Clin & Hlth Res, Ann Arbor, MI USA
[3] Univ Michigan Hosp, Div Cardiovasc Med, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA
关键词
myocardial recovery; nonischemic cardiomyopathy; heart failure with recovered ejection fraction; duration of recovery; DYSFUNCTION; RECURRENCE; PREDICTOR;
D O I
10.1016/j.cardfail.2023.06.022
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Duration of recovery and long-term outcomes have not been well-described in a large cohort of patients with heart failure with recovered ejection fraction (HFrecEF) owing to nonischemic cardiomyopathy. The aim of the study was to characterize the duration of recovery and long-term outcomes of patients with HFrecEF.Methods and Results: We performed a retrospective analysis of our institution's databases. Only patients with nonischemic cardiomyopathy, a chronic HF diagnosis, and a previous left ventricular ejection fraction (LVEF) of <35% who had a subsequent LVEF of >50% were considered to have recovery. Patients with an LVEF of <35% who did not recover served as the comparison group. Included were 2319 patients with an LVEF of <35%, of whom 465 (20% [18.4%-21.7%]) met the above criteria for recovery (HFrecEF group). Recovery in the HFrecEF group was temporary in most cases, with 50% of patients experiencing a decline in LVEF to <50% within 3.5 [interquartile range 2.4-4.9] years after the day of recovery. Age and sex adjusted death and hospitalization were lower in the HFrecEF group than the HFrEF group (HR 0.29 [interquartile range 0.20-0.41] for death and 0.44 [interquartile range 0.32-0.60] for HF hospitalization, P < .0001 for both). Longer recovery was associated with better survival, with patients spending >5 years in recovery (LVEF of >50%) displaying the highest survival rates (83% alive at 10 years after recovery). Survival after recurrence of LV dysfunction was longer for those whose recovery duration was >1 year.Conclusions: Patients with nonischemic HFrecEF display a unique clinical course. Although recovery is temporary in most cases, patients with HFrecEF display lower mortality and hospi-talization rates, with the more durable the recovery of LV systolic function, the longer survival can be anticipated.
引用
收藏
页码:1593 / 1602
页数:10
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