测定预计冲程体积变化的切断值,作为流体响应性的预测指标
Yukiko Yamazaki1, Shuko Matsuda1, Yuka Matsuki2
1Department of Anesthesiology and Reanimatology, Faculty of Medicine Sciences, University of Fukui Hospital, 23-3 Shimoaizuki, Matsuoka, Eiheiji cho, Yoshida gun, Fukui, 910-1193, Japan.
BMC anesthesiology
|December 10, 2025
概括
该研究确定了估计中风体积变化 (esSVV) 的切割值为7.3%,这是流体响应的非侵入性指标. 这一发现为在循环管理中使用esSVV提供了临床值.
科学领域:
- 麻醉学和重症监护医学
- 心血管生理学心血管生理学
- 医疗技术评估 医疗技术评估
背景情况:
- 估计中风体积变化 (esSVV) 是一个非侵入性流体响应指标,来自估计连续心脏输出 (esCCO) 系统.
- 缺少esSVV的最终切割值,阻碍了其临床应用.
- 这项研究旨在确定esSVV的可靠切割值.
研究的目的:
- 为了确定esSVV的最佳切割值作为流体响应的指标.
- 为了验证esSVV在管理循环状态中的临床实用性.
- 为esSVV解释提供一个定量值.
主要方法:
- 一项前性观察性研究,包括接受全身麻醉的患者.
- 校准esCCO系统并记录基线血压.
- 在静脉压力下降>10%后,用ESVV测量输注前后的液体挑战剂 (300毫升合物) 给药.
主要成果:
- 对于esSVV,接收器运行特征曲线 (AUC) 下的面积为0.73.
- 对于esSVV的值为7.3%,证明了最佳的灵敏度和特异性.
- 对SVV的确定的切线为12% (AUC为0.65).
结论:
- 对于esSVV的确定的切割值为7.3%.
- 由于其已建立的切断值,esSVV是循环管理的宝贵工具.
- 这为指导流体治疗决策提供了一个关键参数.
相关概念视频
Regulation of Stroke Volume
4.6K
The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
4.6K
Cardiac Output II: Effect of Stroke Volume on Cardiac Output
3.0K
Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
3.0K
Cardiac Output and Stroke Volume
4.3K
Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
In an average resting adult male, the typical cardiac...
4.3K


