Solak Serkan, Erkoç Suheyla Karadag, Bermede Onat Ahmet, Bayar Mustafa Kemal
Ankara University, Faculty of Medicine, Department of Anesthesiology and Reanimation - Ankara, Turkey.
Rev Assoc Med Bras (1992). 2024 Dec 2;70(12):e20240786. doi: 10.1590/1806-9282.20240786. eCollection 2024.
The aim of this study was to evaluate the correlation between changes in the inferior vena cava collapsibility index and subclavian vein collapsibility index in patients undergoing passive leg raising tests in the intensive care unit, considering that respiratory changes affecting the inferior vena cava may similarly affect the subclavian vein.
This single-center observational study was conducted on patients aged between 18 and 85 years who underwent passive leg raising in the intensive care unit. When the patient was 45° above the bed, the inferior vena cava and subclavian vein were displayed using ultrasonography; subclavian vein collapsibility index and inferior vena cava collapsibility index values were calculated. After the initial values were recorded, passive leg raising was performed, and the initial measurements were repeated. The CI values measured after passive leg raising were subtracted from those calculated before passive leg raising to determine the changes (Δ) in inferior vena cava and subclavian vein collapsibility indices.
The study was conducted with a total of 64 patients. The mean±standard deviation values for ΔIVC-CI% and ΔSCV-CI% variables were found as 8.97±8.89 and 10.31±10.81, respectively. There were no statistically significant differences in values of ΔIVC-CI% and ΔSCV-CI% (p=0.297). In the Bland-Altman plot, because there were only two values exceeding the +1.96 SD and -1.96 SD limits, it can be said that the agreement between ΔIVC-CI% and ΔSCV-CI% was adequate.
ΔSCV-CI% values are compatible and correlated with ΔIVC-CI% values. Inferior vena cava and subclavian vein responded similarly to fluid changes during passive leg raising.
本研究旨在评估重症监护病房中接受被动抬腿试验的患者下腔静脉塌陷指数变化与锁骨下静脉塌陷指数变化之间的相关性，因为影响下腔静脉的呼吸变化可能同样影响锁骨下静脉。
本单中心观察性研究针对年龄在18至85岁之间、在重症监护病房接受被动抬腿试验的患者进行。当患者床头抬高45°时，使用超声检查显示下腔静脉和锁骨下静脉；计算锁骨下静脉塌陷指数和下腔静脉塌陷指数值。记录初始值后，进行被动抬腿试验，并重复初始测量。用被动抬腿试验前计算的下腔静脉和锁骨下静脉塌陷指数值减去被动抬腿试验后测量的CI值，以确定下腔静脉和锁骨下静脉塌陷指数的变化（Δ）。
本研究共纳入64例患者。发现ΔIVC-CI%和ΔSCV-CI%变量的均值±标准差分别为8.97±8.89和10.31±10.81。ΔIVC-CI%和ΔSCV-CI%的值无统计学显著差异（p = 0.297）。在Bland-Altman图中，由于仅有两个值超出+1.96 SD和 -1.96 SD限值，可以说ΔIVC-CI%和ΔSCV-CI%之间的一致性良好。
ΔSCV-CI%值与ΔIVC-CI%值具有兼容性且相关。在被动抬腿过程中，下腔静脉和锁骨下静脉对液体变化的反应相似。
