The Methodology of Doppler-Derived Central Blood Flow Measurements in Newborn Infants

Table 3

Methods of determination of SVC diameter, flow velocity, and reported mean (SD) values in mL/kg/min.

	SVC diameter	SVC flow velocity	Angle correction	Time after birth	SVC flow (mL/kg/min)
					Preterm infants			Term infants
					𝑛	Mean	SD	𝑛	Mean	SD
Tamura et al., 1998 [31]	Not done	1 cm proximal of RA 2D guided PW doppler suprasternal view	no	24 hours				17
Kluckow and Evans, 2000 [8]	2D internal minimum and maximum diameter high parasternal view	RA-SVC junction 2D guided PW doppler subcostal view	no	24 hours	25	82	40	13	76	38
Groves et al., 2008 [32]	M mode internal minimum and maximum diameter high parasternal view	RA-SVC junction 2D guided PW doppler subcostal view	no	24 hours	14	112	36	13	89	32
Lee et al., 2010 [33]	2D internal minimum and maximum diameter high parasternal view	RA-SVC junction 2D guided PW doppler subcostal view	no	24 hours				48	99	47
Sloot et al., 2010 [25]	2D internal minimum and maximum diameter high parasternal view	RA-SVC junction 2D guided PW doppler subcostal view	no	7 days	57	89	33