Minutiello L
Regione Marche, USL n. 20 Presidio Ospedaliero di Camerino.
Minerva Cardioangiol. 1993 Oct;41(10):433-7.
To evaluate non invasive means of estimating central venous pressure, the respiratory motion of the inferior vena cava (IVC) was analysed by echocardiography in 65 patients. The caval index was measured in subcostal views within 2 cm of the right atrium origin of IVC. Parameters were correlated with simultaneous measured central venous pressure (CVP) by catheter positioned in the internal jugular vein. Patients were classified in 3 groups: A) 45 patients with caval index > or = 20% and normal CVP; B) 6 patients with caval index > 20% and elevated value of CVP; C) 14 patients with caval index < 20% elevated value of CVP. Group A and B had no sign of cardiac failure, on reverse group C. Caval index was inversely related to mean CVP. A caval index > or = 20% indicate normal CVP, a caval index < 20% is related to an elevated value of CVP. This method appears to be useful for noninvasive estimation of mean CVP.
为评估估计中心静脉压的非侵入性方法，通过超声心动图分析了65例患者的下腔静脉（IVC）呼吸运动。在IVC右心房起源处2厘米范围内的肋下视图中测量腔静脉指数。参数与通过置于颈内静脉的导管同时测量的中心静脉压（CVP）相关。患者分为3组：A）45例腔静脉指数≥20%且CVP正常的患者；B）6例腔静脉指数>20%且CVP值升高的患者；C）14例腔静脉指数<20%且CVP值升高的患者。A组和B组没有心力衰竭迹象，而C组则相反。腔静脉指数与平均CVP呈负相关。腔静脉指数≥20%表明CVP正常，腔静脉指数<20%与CVP值升高有关。该方法似乎对平均CVP的非侵入性估计有用。
