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Table 3 Published correlations between ultrasound measurements of IVC collapsibility index and CVP or RAP in spontaneously ventilating patients

From: The efficacy of sonographic measurement of inferior vena cava diameter as an estimate of central venous pressure

Type of inspiration Study N Mean CVP or RAP Correlation coefficient p-value Comments
Passive Taniguchi et al., [19] 90 8.0 −0.57 <0.05 Study reports median CVP/RAP
Zhang et al., [21] 72 3.0 −0.27 0.017  
Prekker et al., [26] 65 7.0 −0.40 <0.05 Study reports median CVP/RAP
Yildirimturk et al., [15] 22 9.7 −0.49 <0.05  
Nagdev et al., [28] 73 10.5 −0.74 <0.05  
Brennan et al., [18] 91 7.0 −0.50 a  
Kircher et al., [3] 83 a −0.75 a  
Moreno et al., [17] 65 a −0.71 a  
Sniff Taniguchi et al., [19] 90 8.0 −0.63 <0.05 Study reports median CVP/RAP
Tsutsui et al., [22] 71 13.0 −0.41 <0.0001  
Patel et al., [16] 34 11.0 −0.49 0.006  
Brennan et al., [18] 91 7.0 −0.54 a  
Nagueh et al., [31] 23 9.0 −0.76 <0.001  
  1. adata not available