JAHA:青年成人健身和肥胖与中年期右心室功能和肺动脉收缩压之间的纵向关联

2021-03-29 MedSci原创 MedSci原创

成年后较高的CRF和随时间推移CRF下降程度较少均与较好的RV收缩功能相关。较高的基线BMI和与年龄相关的BMI增加均与中年PASP升高显著相关。

心肺功能(CRF)较差和肥胖是心力衰竭的危险因素,但它们与右心室(RV)收缩功能和肺动脉收缩压(PASP)之间的关联尚未明确。

近日,血管疾病领域权威杂志JAHA上发表了一篇研究文章,研究人员纳入了年轻人冠状动脉风险研究中在基线时进行了最大的运动测试,并在第25年进行了超声心动图检查的参与者。一部分参与者在第20年进行了重复CRF和体重指数(BMI)评估。

研究人员使用多变量调整的线性回归模型评估了基线和随访(基线至第20年)时的CRF和BMI及其变化与RV收缩功能参数(三尖瓣环平面收缩偏移、外侧三尖瓣瓣环的RV多普勒收缩期速度)和PASP之间的关联。

这项研究纳入了3433名参与者。在调整后的分析中,较高的基线BMI(而非CRF)与较高的PASP显著相关。在RV收缩功能参数中,较高的基线CRF和BMI与较高的三尖瓣环平面收缩偏移和外侧三尖瓣环的RV收缩速度显著相关。在随访20年时对CRF或BMI进行随访评估的参与者亚组中,CRF的下降较少与外侧三尖瓣瓣环的RV收缩期速度加快和PASP降低有关,而BMI增加较大与PASP升高程度增加显著相关。

由此可见,成年后较高的CRF和随时间推移CRF下降程度较少均与较好的RV收缩功能相关。较高的基线BMI和与年龄相关的BMI增加均与中年PASP升高显著相关。这些结果为不健身和肥胖可能导致心力衰竭风险提供了可能的机制解释。

原始出处:

Kershaw V. Patel.et al.Longitudinal Associations of Fitness and Obesity in Young Adulthood With Right Ventricular Function and Pulmonary Artery Systolic Pressure in Middle Age: The CARDIA Study.J AM HEART ASSOC.2021.https://www.ahajournals.org/doi/full/10.1161/JAHA.120.016968

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    2021-03-31 zhaohui6731
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