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Table 3 Comparison of hemodynamics and ultrasound measurements between patients with or without hypotension

From: Association of infraclavicular axillary vein diameter and collapsibility index with general anesthesia-induced hypotension in elderly patients undergoing gastrointestinal surgery: an observational study

 

Developed hypotension

(n = 173)

Variables

Yes (n = 92)

No (n = 81)

P

MAPbefore induction (mmHg)

100.38 ± 9.32

97.94 ± 11.92

0.139

MAP after induction(mmHg)

72.61 ± 7.61

82.32 ± 10.71

< 0.001

HRbefore induction (beats/min)

69.32 ± 9.80

69.48 ± 12.26

0.921

HRafter induction (beats/min)

62.13 ± 12.06

63.02 ± 12.47

0.633

CVPbefore induction (mmHg)

6.47 ± 1.69

6.95 ± 2.57

0.152

CVPafter induction (mmHg)

6.49 ± 1.82

6.86 ± 2.48

0.264

Lactatebefore induction (mmol/L)

0.82 ± 0.36

0.78 ± 0.34

0.441

Lactateafter induction (mmol/L)

0.84 ± 0.28

0.88 ± 0.40

0.476

dAXVmax (cm)

0.86 ± 0.11

0.85 ± 0.11

0.363

dIVCmax (cm)

1.88 ± 0.20

1.94 ± 0.22

0.073

AXV-CI (%)

35.06 ± 11.15

20.61 ± 8.41

< 0.001

IVC-CI (%)

43.22 ± 8.54

29.69 ± 8.20

< 0.001

  1. Values are mean ± SD. MAP, mean arterial blood pressure; HR, heart rate; CVP, central venous pressure. dAXVmax, the maximum diameter of the axillary vein; dIVCmax, the maximum diameter of the inferior vena cava; AXV-CI, collapsibility index of the axillary vein; IVC-CI, collapsibility index of the inferior vena cava