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在2型糖尿病中,亚临床右心室变化与有氧运动能力之间的关联
Abhishek Dattani1, Jian L Yeo1, Emer M Brady1
1Department of Cardiovascular Sciences, University of Leicester, and the National Institute for Health and Care Research Leicester Biomedical Research Centre, Leicester, UK.
概括
2型糖尿病与由于心脏右侧变化而降低有氧运动能力有关. 右心室重塑,而不是左心脏问题,独立影响T2D患者的峰值氧气消耗.
科学领域:
- 心脏病学 心脏病学
- 内分泌学 在内分泌学.
- 运动生理学 运动生理学
背景情况:
- 2型糖尿病 (T2D) 是心血管并发症的重要危险因素,包括心力衰竭.
- 对于T2D对右心脏的具体影响及其与运动能力的关系仍未得到充分研究.
- 在患有T2D的成年人中,亚临床的右心脏变化可能会先于功能衰退.
研究的目的:
- 调查T2D成人右心脏结构和功能的亚临床变化.
- 确定T2D中右心脏参数与有氧运动能力 (峰值VO2) 之间的关联.
- 为了比较T2D和没有T2D的个体的右心脏特征.
主要方法:
- 一项前性病例对照研究,将T2D的成年人与没有T2D或心脏病的对照人进行比较.
- 综合性心脏评估使用跨胸腔心声学和应激心血管磁共振.
- 进行心肺运动测试以测量峰值氧气消耗 (峰值VO2);对共变量进行统计调整和多变量回归分析.
主要成果:
- 与对照组相比,T2D参与者表现出明显较低的VO2峰值.
- 患有T2D的个体表现出较小的右心室 (RV) 体积和受损的RV放松,尽管有高动态RV缩功能的证据.
- 在T2D中,RV终端透缩体积和RV心脏输出被确定为峰值VO2的独立决定因素,而左心室参数没有显著意义.
结论:
- 在T2D的成年人中存在亚临床右心室重塑.
- 右心脏结构和功能与T2D的有氧运动能力降低有显著的关联.
- 针对RV改变可能对改善2型糖尿病患者的运动耐受性至关重要.
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