Detection of critical cerebral desaturation thresholds by three regional oximeters during hypoxia: a pilot study in healthy volunteers

Table 4 Detection of critical rSO₂ thresholds during the first desaturation cycle (n, %)

	INVOS: YES EQUANOX: NO n = 6	INVOS: NO EQUANOX: YES n = 6	P value	INVOS: YES FORE-SIGHT: NO n = 4	INVOS: NO FORE-SIGHT: YES n = 4	P value
20% relative rSO₂ decrease from baseline met	5 (83%)	0	0.06	2 (50%)	0	0.50
50% absolute rSO₂ threshold met	4 (67%)	0	0.06	3 (75%)	0	0.25

ISSN: 1471-2253