The effects of hemodynamic management using the trend of the perfusion index and pulse pressure variation on tissue perfusion: a randomized pilot study

JA Clinical Reports

Table 3 Intraoperative data

	Intervention group (n = 17)	Control group (n = 17)	P value
Duration of anesthesia (min)	342 ± 96	332 ± 85	0.74^a
Duration of surgery (min)	238 ± 89	239 ± 85	0.98^a
Intraoperative blood loss (mL)	468 ± 466	485 ± 407	0.91^a
HR (beats/min)	71 ± 11	75 ± 11	0.30^a
MAP (mmHg)	74 ± 6	69 ± 7	0.04^a
PI (%)	2.4 ± 1.6	2.8 ± 1.5	0.45^a
PPV (%)	9.8 ± 3.8	8.8 ± 2.7	0.39^a
SVV (%)	12.1 ± 3.8	9.6 ± 2.2	0.02^b
CI (L/min/m²)	2.9 ± 0.7	3.3 ± 1.0	0.27^a
SVI (mL/m²)	41 ± 11	42 ± 8	0.90^a
Crystalloid (mL/kg/h)	3.8 ± 1.1	6.2 ± 2.1	0.0006^b
Colloid (mL/kg/h)	2.3 ± 1.2	3.3 ± 3.0	0.61^b
Number of patients transfused with RBC (n)	4	5	> 0.99^c
RBC transfusion (mL)	135 ± 256	112 ± 203	0.77^a
Number of patients received ephedrine (n)	15	13	0.66^c
Total dose of ephedrine (mg)	9.3 ± 8.1	10.5 ± 8.4	0.31^a
Ephedrine (mg/h)	1.5 ± 1.1	2.1 ± 1.7	0.68^a
Number of patients received phenylephrine (n)	16	14	0.60^c
Phenylephrine (mg/h)	0.73 ± 0.44	0.22 ± 0.32	0.0006^a
Number of patients received dobutamine (n)	3	0	0.23^c
Dobutamine (μg/kg/min)	0.14 ± 0.49	0.00 ± 0.00	0.23^b
ETCO₂ (mmHg)	37 ± 1.4	37 ± 1.4	0.39^a
TV (mL/kg of IBW)	8.2 ± 0.4	8.3 ± 0.8	0.84^b
Ppeak (cmH₂O)	18 ± 2.7	17 ± 1.8	0.07^a
PEEP (cmH₂O)	5.1 ± 0.86	4.7 ± 0.7	0.11^a
ETDes (%)	3.7 ± 0.3	3.5 ± 0.5	0.31^b
Tblad (°C)	36.9 ± 0.6	36.6 ± 0.6	0.18^a
Tskin (°C)	36.1 ± 0.5	35.9 ± 1.1	0.95^b

Abbreviations: CI cardiac index, ETCO₂ end-tidal carbon dioxide tension, ETDes end-tidal desflurane concentration, HR heart rate, IBW ideal body weight, MAP mean arterial pressure, PEEP positive end-expiratory pressure, PI perfusion index, Ppeak peak inspiratory pressure, PPV pulse pressure variation, RBC red blood cell, SVI stroke volume index, SVV stroke volume variation, Tblad bladder temperature, Tskin skin temperature of the hand, TV tidal volume
Values are expressed as mean ± standard deviation or number
^aP values were calculated using Student’s t test
^bP values were calculated using Mann-Whitney test
^cP values were calculated using Fisher’s exact test