Table 1.

Partial correlation coefficients of tested factors (***: p < 0.001).

	VRL	SFR	Q	V	MB
VRL	1	0.2323	0.1665	0.2137	− 0.4978***
SFR	0.2323	1	− 0.1915	− 0.2458	0.5889***
Q	0.1665	− 0.1915	1	− 0.1232	0.4336***
V	0.2137	− 0.2458	− 0.1232	1	0.4713***
MB	− 0.4978***	0.5889***	0.4336***	0.4713***	1

Bold values indicate moderate correlation.

VRL venous reservoir level, SFR surgical field suction flow rate, Q blood perfusion flow, V blood viscosity, and MB: number of microbubbles.