Pre-anesthesia ultrasound monitoring of subclavian vein diameter changes induced by modified passive leg raising can predict the occurrence of hypotension after general anesthesia: a prospective observational study

Table 3 Comparison of DSCVmax1, DSCV-CI1, DSCVmax2, DSCV-CI2, ΔDSCV between the two groups

Parameter	All patients	Group N	Group H	P-value
DSCVmax1,cm	0.77 ± 0.19	0.78 ± 0.19	0.75 ± 0.17	0.57^a
DSCV-CI1,%	40.05 ± 17.81	39.29 ± 18.76	42.32 ± 14.75	0.45^a
DSCVmax2,cm	0.91 ± 0.17	0.90 ± 0.19	0.94 ± 0.11	0.34^a
DSCV-CI2,%	27.76 ± 15.45	26.73 ± 15.15	30.80 ± 16.22	0.24^a
ΔDSCV,%	8.24(5.17,13.3)	7.27(4.27, 11.61)	16.16(6.45, 24.21)	< 0.001^b

Data are presented as the mean (standard deviation) or median (interquartile range)
a Independent-sample t test
b Mann–Whitney U test(ΔDSCV parameters did not meet the homogeneity of variances)
DSCVmax maximum value of Subclavian Vein Diameter, DSCV-CI Collapsibility Index of Subclavian Vein Diameter
DSCVmax1,DSCV-CI1 DSCVmax,DSCV-CI in supine,
DSCVmax2,DSCV-CI2 DSCVmax,DSCV-CI in Passive leg raising test(PLR),
ΔDSCV Subclavian Vein Diameter changes induced by PLR

ISSN: 1471-2253