显著的血液体积和左心室适应严重肥胖中年成人心力衰竭的风险

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Updated: Jan 18, 2026

08:17

Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery

Published on: February 20, 2017

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Joseph Campain¹, Denis J Wakeham^1,2, Katrin Dias^1,2

¹Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, TX, USA.

European journal of heart failure

|September 9, 2025

概括

肥胖会增加血液体积 (BV) 和左心室 (LV) 重塑中年成人心力衰竭 (HF) 的风险增加. 更高的肥胖严重程度,特别是II/III类,与显著的BV扩张和LV扩大有关,这表明一个不同的子组.

科学领域:

心血管科学心血管科学
肥胖医学肥胖医学
生理学生理学生理学

背景情况:

肥胖是心力衰竭 (HF) 的已知危险因素,提出的机制涉及增加血液体积 (BV) 和左心室 (LV) 改造.
在临床诊断之前,中年人患高血压风险增加 (IR) 的脂肪,BV扩张和LV重塑之间的关系仍然不清楚.

研究的目的:

为了研究脂肪,BV和LV结构/功能之间的关联,中年个体患高血压风险增加.
为了确定肥胖症的严重程度是否会影响BV扩张和随后的LV重塑.

主要方法:

对96名非肥胖对照和126名IR中年成人进行横截面分析,按BMI分层 (非肥胖,I类,II/III类).
测量包括BV (一氧化碳再呼吸),身体组成,以及LV结构和功能 (心声).
统计分析 (回归) 用于评估脂肪质量,BV和LV终端透缩体积 (LVEDV) 之间的关联.

主要成果:

脂肪质量与BV扩张独立相关 (β=0.17,p<0.001).
BV与LVEDV指数 (β=0.54,p<0.001) 独立相关.
与对照组相比,患有II/III类肥胖症的个体表现出明显更高的BV和红细胞体积,并增加了与身体大小不成比例的LVEDV指数.

结论:

脂肪质量,而不仅仅是瘦肉质量,是BV扩张和LV扩大的重要决定因素.
患有II/III类肥胖和心血管风险增加的中年成人表现出明显的LV扩大,这表明一个独特的病理生理学子组,而不是疾病严重程度的连续性.

关键词:

血液的体积血液的体积心脏衰竭是因为心脏衰竭.肥胖问题肥胖问题腹腔室重塑是指进行心室重塑.

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