A New Monitor to Measure Dermal Blood Flow in Critically Ill Patients: A Preliminary Study

Table 2

Standard deviation of the difference (SDD) between MAP and DBF and between MAP and FPW results observed during stable states.

Patient no.	State 1		State 2		State 3		State 4
	DBF	FPW	DBF	FPW	DBF	FPW	DBF	FPW
1	40.05	Not possible
2	10.23	24.20
3	8.45	37.13
4	17.66	15.12	6.83	18.97
5	7.72	13.91	2.93	10.47	15.91	8.06
6	22.80	28.34	4.53	18.22
7	17.69	26.04	10.80	43.51	9.57	61.12	6.73	8.75
8	9.17	10.80	6.93	21.30
9	4.75	6.64	3.93	8.19	4.75	6.96
10	5.62	60.79	12.84	87.87
11	10.82	10.37	4.33	23.24

DBF: dermal blood flow; FPW: finger plethysmographic waveform.