An Ultrasound Study of Cerebral Venous Drainage after Internal Jugular Vein Catheterization

Table 3

Flows analysis results.

		IJV flow before cannulation	IJV flow after cannulation	Absolute variation		IJV flow variation rate
		Mean±SD	Mean±SD	Mean	𝑃-value^∗	Mean	𝑃-value^∗∗
IJV 0°	Apex	891.4±440.9	854.5±396.1	−36.9	0.14	−1.8%	0.44
	Base	833.7±384.3	765.5±376.8	−68.2	0.01	−5.5%	0.14
IJV 30°	Apex	540.8±375.1	515.7±347.4	−25.1	0.12	−2.7%	0.31
	Base	481.8±315.5	465.4±293.5	−26.4	0.18	−0.4%	0.90