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Table 1 Patient baseline characteristics and haemodynamic parameters

From: Correlation of carotid corrected flow time and respirophasic variation in blood flow peak velocity with stroke volume variation in elderly patients under general anaesthesia

 

All patients

(n = 97)

Responders (n = 41)

Nonresponders (n = 56)

P-value

Male/female

61/36

25/16

36/20

0.83b

Age, y

71.6(65–88)

71.2(65–84)

71.9(65–88)

0.50c

BMI, kg/m2

23.0 ± 2.5

23.2 ± 2.6

22.8 ± 2.5

0.37a

ASA PS I/II/III

16/52/29

6/20/15

10/32/14

0.47b

Diagnosis

 Stomach tumour

26

12

14

0.64b

 Intestinal tumour

63

27

36

1.00b

 Enterostomy closure

8

2

6

0.46b

Type of surgery

 Laparoscopic surgery

89

39

50

0.26b

 Open surgery

8

2

6

0.26b

 Comorbidities

 Hypertension

18

8

10

1.00b

 Diabetes mellitus

7

3

4

1.00b

 Coronary artery disease

3

2

1

0.57b

 Baseline SBP, mmHg

130.9 ± 10.7

129.8 ± 12.0

131.6 ± 9.8

0.42a

 Baseline DBP, mmHg

71.0 ± 8.1

71 ± 8.6

70.9 ± 7.8

0.95a

 Baseline MAP, mmHg

90.9 ± 7.9

90.5 ± 7.8

91.2 ± 8.1

0.66a

 Baseline HR, beats/min

69.2 ± 9.0

68.7 ± 10.1

69.6 ± 8.3

0.65a

 Baseline carotid FTc, ms

343.2 ± 10.1

337.2 ± 9.1

347.6 ± 8.5

 < 0.001a

 Baseline ΔVpeak, %

10.7 ± 2.3

12.4 ± 1.8

9.5 ± 1.8

 < 0.001a

  1. Data are presented as the mean (standard deviation) or median (interquartile range)
  2. a Independent-sample t test
  3. b χ2 test
  4. c Mann–Whitney U test
  5. BMI Body mass index, ASA PS American Society of Anesthesiologists physical status, SBP systolic blood pressure, DBP diastolic blood pressure, MAP mean arterial pressure, HR heart rate, FTc carotid corrected flow time, ΔVpeak respirophasic variation in carotid artery blood flow peak velocity