J Am Heart Assoc:性别对保留射血分数的心力衰竭患者心室-血管硬度和长期结果的影响

2020-03-19 MedSci原创 MedSci原创

随着年龄的增长,女性的血管僵硬度更高。本研究旨在表征血管和心室结构和功能的性别差异,并研究对TOPCAT试验(使用醛固酮拮抗剂试验治疗保留的心脏功能性心力衰竭)对主要结局的影响。

随着年龄的增长,女性的血管僵硬度更高。本研究旨在表征血管和心室结构和功能的性别差异,并研究对TOPCAT试验(使用醛固酮拮抗剂试验治疗保留的心脏功能性心力衰竭)对主要结局的影响。

 

分析来自TOPCAT试验美洲地区的数据。根据性别对超声心动图检查的患者(n = 654)进行比较,并评估主要终点(心血管和心力衰竭住院死亡的总和)的发生情况。超声心动图显示,女性的动脉,收缩和舒张期心室弹性较高,而心室-血管耦合较差。女性的总体生存率和心力衰竭住院治疗结局更好(危险比0.74,95%CI 0.57-0.98,P = 0.034),但是,实现主要结局的决定因素在男女之间有所不同。脉压是女性预后的关键决定因素(危险比1.04,95%CI 1-1.09,P = 0.034),而在男性中,心率(每增加10 mm Hg,危险比1.61,95%CI 1.02-2.52,P = 0.04)和B型利钠肽(危险比1.01,每增加10 ng/mL 95%CI 1-1.02,P = 0.02)与其不良预后相关。

 

总之,该研究结果表明,保留射血分数的心力衰竭患者的预后似乎受到关键生理因素的不同影响,这些因素因性别而异。在女性中,心室血管僵硬是决定结局的最重要因素,而在男性中,总生存率受心率和B型利钠肽为关键因素。这突出了射血分数得以保留的心力衰竭的病理生理和预后方面的关键性别差异,值得进一步研究。

 

原始出处:

 

Anna L. BealeShane Nanayakkara, et al., Impact of Sex on Ventricular‐Vascular Stiffness and Long‐Term Outcomes in Heart Failure With Preserved Ejection Fraction: TOPCAT Trial Substudy. J Am Heart Assoc. 2019 Jul 2; 8(13): e012190.  doi: 10.1161/JAHA.119.012190

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