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Impairment of Cardiovascular Functional Capacity in Mild to Moderate Kidney Dysfunction
Clinical Journal of the American Society of Nephrology ( IF 8.5 ) Pub Date : 2024-10-14 , DOI: 10.2215/cjn.0000000000000548
Kenneth Lim, Matthew Nayor, Eliott Arroyo, Heather N. Burney, Xiaochun Li, Yang Li, Ravi Shah, Joseph Campain, Douglas Wan, Stephen Ting, Thomas F. Hiemstra, Ravi Thadhani, Sharon Moe, Daniel Zehnder, Martin G. Larson, Ramachandran S. Vasan, Gregory D. Lewis

ascular functional capacity can detect abnormalities in mild-to-moderate CKD. Methods: In a cross-sectional study, we examined 3,075 participants from the Framingham Heart Study (FHS) and 451 participants from the Massachusetts General Hospital Exercise Study (MGH-ExS) who underwent cardiopulmonary exercise testing (CPET). Participants were stratified by estimated glomerular filtration rate (eGFR): eGFR ≥90; eGFR 60-89; eGFR 30-59. Our primary outcomes of interest were peak oxygen uptake (VO2Peak),VO2 at anaerobic threshold (VO2AT), and the ratio of minute ventilation to carbon dioxide production (VE/VCO2). Multiple linear regression models were fitted to evaluate the associations between eGFR group and each outcome variable adjusted for covariates. Results: In the FHS cohort, N=1,712 (56%) had an eGFR ≥90 ml/min/1.73m2, N=1,271 (41%) had an eGFR 60-89 ml/min/1.73m2, and N=92 (3%) had an eGFR 30-59 ml/min/1.73m2. In the MGH-ExS cohort, N=247 (55%) had an eGFR ≥90 ml/min/1.73m2, N=154 (34%) had an eGFR 60-89 ml/min/1.73m2, and N=50 (11%) had an eGFR 30-59 ml/min/1.73m2. In FHS, VO2Peak and VO2AT were incrementally impaired with declining kidney function (p<0.001); however this pattern was attenuated following adjustment for age. Percent-predicted VO2Peak at AT was higher in the lower eGFR groups (p<0.001). In MGH-ExS, VO2Peak and VO2AT were incrementally impaired with declining kidney function in unadjusted and adjusted models (p<0.05). VO2Peak was associated with eGFR (p<0.05) in all models even after adjusting for age. On further mechanistic analysis, we directly measured cardiac output (CO) at peak exercise via right heart catheterization and found impaired CO in the lower eGFR groups (p≤0.007). Conclusion: CPET-derived indices may detect impairment in cardiovascular functional capacity and track cardiac output declines in mild to moderate CKD. Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Society of Nephrology...

中文翻译:


轻度至中度肾功能不全患者的心血管功能能力受损



肌功能能力可以检测轻至中度 CKD 的异常。方法: 在一项横断面研究中,我们检查了来自弗雷明汉心脏研究 (FHS) 的 3,075 名参与者和来自马萨诸塞州总医院运动研究 (MGH-ExS) 的 451 名参与者,他们接受了心肺运动测试 (CPET)。参与者按估计肾小球滤过率 (eGFR) 分层:eGFR ≥90;eGFR 60-89;eGFR 30-59。我们感兴趣的主要结局是峰值摄氧量 (VO2Peak)、厌氧阈值下的 VO2 (VO2AT) 以及分钟通气量与二氧化碳生成量的比率 (VE/VCO2)。拟合多元线性回归模型以评估 eGFR 组与协变量调整的每个结果变量之间的关联。结果: 在 FHS 队列中,N=1,712 (56%) 的 eGFR ≥90 ml/min/1.73m2,N=1,271 (41%) 的 eGFR 60-89 ml/min/1.73m2,N=92 (3%) 的 eGFR 30-59 ml/min/1.73m2。在 MGH-ExS 队列中,N=247 (55%) 的 eGFR ≥90 ml/min/1.73m2,N=154 (34%) 的 eGFR 60-89 ml/min/1.73m2,N=50 (11%) 的 eGFR 30-59 ml/min/1.73m2。在 FHS 中,VO2Peak 和 VO2AT 逐渐受损,肾功能下降 (p<0.001);然而,这种模式在调整年龄后减弱了。在较低 eGFR 组中,AT 时的 VO2Peak 百分比预测较高 (p<0.001)。在 MGH-ExS 中,在未调整和调整的模型中,VO2Peak 和 VO2AT 逐渐受损,肾功能下降 (p<0.05)。即使在调整年龄后,VO2Peak 在所有模型中都与 eGFR (p<0.05) 相关。在进一步的机制分析中,我们通过右心导管插入术直接测量了运动高峰期的心输出量 (CO),发现较低的 eGFR 组 CO 受损 (p≤0.007)。 结论: CPET 衍生的指标可以检测轻度至中度 CKD 患者的心血管功能能力受损并跟踪心输出量下降。版权所有 © 2024 作者。由 Wolters Kluwer Health, Inc. 代表美国肾脏病学会出版...
更新日期:2024-10-17
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