食物摄入量和预负荷增加对心脏功能参数的影响:一项使用心脏磁共振和心声谱的研究
Lasse Visby1, Rasmus Møgelvang1,2,3, Frederik Fasth Grund1
1Department of Cardiology, The Heart Center Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.
Journal of clinical medicine
|November 14, 2023
概括
食物摄入量和液体负载显著影响心脏输出量和心室体积. 建议在TTE和CMR等心脏成像之前标准化口服,以进行准确的血液动力学评估.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 身体生理学 身体生理学
背景情况:
- 心脏输出 (CO) 和心室体积是关键的血液动力学参数.
- 食物摄入量和预负载增强对这些参数的影响需要进一步研究.
研究的目的:
- 研究食物摄入量和预负荷增强对心脏输出 (CO) 和左心室 (LV) 和右心室 (RV) 体积的影响.
- 为了比较包括心磁共振 (CMR) 和跨胸腔心声谱 (TTE) 在内的评估方法.
主要方法:
- 82名受试者 (40名心脏病患者,42名无心脏病患者) 在注射盐水之前和之后接受了CMR和TTE.
- 被试被分为"食物/液体" (输液期间的餐) 和"禁食/液体"组.
- 分析包括末端透气 (EDV) 和末端静脉 (ESV) 体积,特征跟踪 (FT),LV全球纵向菌株 (GLS) 和RV纵向菌株 (LS).
主要成果:
- 心脏输出 (CO) 在两组中都显著增加,食物/液体组的增加更大.
- 左心室 (LV) 冲击体积 (SV) 通过增强的收缩性增加,增加了LV末缩体积 (EDV),减少了LV末缩体积 (ESV),改善了LV特征跟踪 (FT) 和全球纵向应变 (GLS).
- 右心室 (RV) SV通过体积膨胀增加,增加RV EDV和RV ESV,并在禁食/流体组中稳定RV FT和RV纵向应变 (LS).
结论:
- 预负载增强和食物摄入显著改变血液动力学和心脏功能参数.
- 在心脏评估 (TTE,CMR,右心导管) 之前,对口服的标准化建议是合理的.
- LV和RV使用不同的机制来增加冲击体积:LV通过收缩性,RV通过体积膨胀.
关键词:
心脏磁共振是一种心脏磁共振.食物摄入量 食物摄入量心脏衰竭是因为心脏衰竭.血液动力学 血液动力学预加载增强增强跨胸腔心脏回声学 (Transthoracic Echocardiography) 是一种心脏回声学.更多相关视频
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