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Table 3 Perioperative data

From: Effects of goal-directed fluid management guided by a non-invasive device on the incidence of postoperative complications in neurosurgery: a pilot and feasibility randomized controlled trial

Variable

GDHT

(n = 17)

STANDARD

(n = 17)

p-value

Beginning of surgery

 MAP, mmHg

106 ± 13

109 ± 17

0.478

 Heart rate, beats/min

71 ± 11

66 ± 12

0.294

 Hb, g/L

137 ± 11

135 ± 18

0.826

 Patients with unsatisfactory brain tissue relaxation

4 (23.5)

4 (23.5)

1

During surgery

 Patients transfused

3 (17.6)

2 (11.8)

0.628

 Patients with hypotension episode

7 (41.2)

6 (35.3)

0.724

 Patients with vasoactive drug intervention

7 (41.2)

4 (23.5)

0.271

 Patients with fluid bolus

11 (64.7)

6 (35.3)

0.086

 Patients with brain edema requiring intervention

0

0

-

End of surgery

 MAP, mmHg

81 ± 11.8

81 ± 11.5

0.928

 Heart rate, beats/min

61 ± 10.35

61 ± 13.49

0.984

 Hb, g/l

108 ± 13.75

110 ± 16.87

0.810

 Lactate, mmol/l

1.5 ± 0.92

2.1 ± 0.92

0.407

 Patients with unsatisfactory brain tissue relaxation

0

0

-

 Blood loss, ml

279 ± 305.19

316 ± 234.68

0.271

 Crystalloids, ml

1288 ± 591.22

1935 ± 648.98

0.001

 Colloids, ml

471 ± 522.03

88 ± 196.48

0.015

 Duration of surgery, min

237 ± 85.92

223 ± 82.50

0.667

24 h after surgery

 Blood loss, ml

88 ± 85.62

75 ± 48.80

0.920

 Urine output, ml

2041 ± 605.50

2191 ± 775.45

0.603

 Hb, g/l

115 ± 10.58

116 ± 10.96

0.881

 Lactate, mmol/l

1.8 ± 0.70

1.8 ± 0.70

0.719

 Crystalloids, ml

1221 ± 507.46

1309 ± 500.70

0.490

 Patients transfused

0

0

-

 Patients with brain edema requiring intervention

0

0

-

  1. Continuous data are expressed as mean ± standard deviation. Categorical data are expressed as the number of patients (percentage)
  2. Abbreviations: ASA American Society of Anesthesiologists, MAP Mean arterial pressure, Hb Hemoglobin