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随着时间推移的心力衰竭预后:在过去 20 年中,运动时耗氧量和通气效率的预后作用发生了怎样的变化。

Heart failure prognosis over time: how the prognostic role of oxygen consumption and ventilatory efficiency during exercise has changed in the last 20 years.

机构信息

Department of Advanced Biomedical Sciences, Federico II University of Naples, Naples, Italy.

Centro Cardiologico Monzino, IRCCS, Milan, Italy.

出版信息

Eur J Heart Fail. 2019 Feb;21(2):208-217. doi: 10.1002/ejhf.1364. Epub 2019 Jan 11.

DOI:10.1002/ejhf.1364
PMID:30632680
Abstract

AIMS

Exercise-derived parameters, specifically peak exercise oxygen uptake (peak VO ) and minute ventilation/carbon dioxide relationship slope (VE/VCO slope), have a pivotal prognostic value in heart failure (HF). It is unknown how the prognostic threshold of peak VO and VE/VCO slope has changed over the last 20 years in parallel with HF prognosis improvement.

METHODS AND RESULTS

Data from 6083 HF patients (81% male, age 61 ± 13 years), enrolled in the MECKI score database between 1993 and 2015, were retrospectively analysed. By enrolment year, four groups were generated: group 1 1993-2000 (n = 440), group 2 2001-2005 (n = 1288), group 3 2006-2010 (n = 2368), and group 4 2011-2015 (n = 1987). We compared the 10-year survival of groups and analysed how the overall risk (cardiovascular death, urgent heart transplantation, or left ventricular assist device implantation) changed over time according to peak VO and VE/VCO slope and to major clinical and therapeutic variables. At 10 years, a progressively higher survival from group 1 to group 3 was observed, with no further improvement afterwards. A 20% risk for peak VO 15 mL/min/kg (95% confidence interval 16-13), 9 (11-8), 4 (4-2) and 5 (7-4) was observed in group 1, 2, 3, and 4, respectively, while the VE/VCO slope value for a 20% risk was 32 (37-29), 47 (51-43), 59 (64-55), and 57 (63-52), respectively.

CONCLUSIONS

Heart failure prognosis improved over time up to 2010 in a HF population followed by experienced centres. The peak VO and VE/VCO slope cut-offs identifying a definite risk progressively decreased and increased over time, respectively. The prognostic threshold of peak VO and VE/VCO slope must be updated whenever HF prognosis improves.

摘要

目的

运动衍生参数,特别是最大运动摄氧量(peak VO )和分钟通气量/二氧化碳斜率(VE/VCO 斜率),在心力衰竭(HF)中有重要的预后价值。但目前尚不清楚,在过去的 20 年中,随着 HF 预后的改善,peak VO 和 VE/VCO 斜率的预后阈值是如何变化的。

方法和结果

回顾性分析了 1993 年至 2015 年间纳入 MECKI 评分数据库的 6083 例 HF 患者(81%为男性,年龄 61±13 岁)的数据。根据入组年份,将患者分为 4 组:第 1 组(1993-2000 年,n=440),第 2 组(2001-2005 年,n=1288),第 3 组(2006-2010 年,n=2368),第 4 组(2011-2015 年,n=1987)。我们比较了各组 10 年的生存率,并分析了随着时间的推移,peak VO 和 VE/VCO 斜率以及主要临床和治疗变量如何改变整体风险(心血管死亡、紧急心脏移植或左心室辅助装置植入)。在 10 年时,我们观察到从第 1 组到第 3 组的生存率逐渐提高,此后没有进一步改善。在第 1 组、第 2 组、第 3 组和第 4 组中,peak VO 15 mL/min/kg 的 20%风险分别为 16-13、9(11-8)、4(4-2)和 5(7-4),而 VE/VCO 斜率的 20%风险值分别为 32(37-29)、47(51-43)、59(64-55)和 57(63-52)。

结论

HF 患者的预后在经验丰富的中心的治疗下,在 2010 年之前逐渐改善。识别明确风险的 peak VO 和 VE/VCO 斜率的截止值逐渐降低和增加。当 HF 预后改善时,peak VO 和 VE/VCO 斜率的预后阈值必须更新。

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