Is Near-Infrared Spectroscopy a Reliable Method to Evaluate Clamping Ischemia during Carotid Surgery?

Table 3

Mean values of rSO₂ recorded in the different steps of operation compared to mean T0 values. P = P value (two-sided) t-Student test for paired samples.

RSO2 values	Mean	SD	P
T0	64.85	9.8
T1	59.44	10.3	<0.0001
C1	59.34	10.4	<0.0001
L- RSO2	56.29	10.3	<0.0001
D1	65.42	10.3	0.064
D2	66.38	34.3	N.S.
D3	64.61	9.7	N.S.