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Table 2 Comparison of hemodynamics and ultrasound measurements between patients with or without PIH

From: Carotid corrected flow time and Doppler shock index for prediction of post-induction hypotension in patients undergoing elective abdominal surgery: a prospective observational study

 

PIH (n = 40)

Non-PIH (n = 54)

P

Baseline MAP, mmHg

92.5 ± 13.3

93.7 ± 10.0

0.627

Baseline HR, beats/min

79.4 ± 12.4

73.8 ± 12.2

0.031

lowest MAP, mmHg

61.8 ± 6.0

73.6 ± 6.3

 < 0.001

Decrease in MAP (%)

32.5 ± 7.0

21.0 ± 6.5

 < 0.001

HR at the lowest MAP, beats/min

74.5 ± 15.6

67.4 ± 13.5

0.020

HR from ultrasound, beats/min

78.9 [71.0–84.8]

71.5 [63.0–78.3]

0.006

FT, ms

301.67 ± 23.65

329.14 ± 27.43

 < 0.001

CT, ms

779.80 ± 121.80

864.54 ± 134.71

0.002

FTc(W), ms

326.08 ± 13.33

343.99 ± 19.70

 < 0.001

FTc(B), ms

342.97 ± 15.32

355.40 ± 20.62

0.002

DSIFTc

0.24 ± 0.04

0.21 ± 0.04

 < 0.001

VTI, cm

13.0 ± 2.7

14.4 ± 3.3

0.037

DSIVTI

6.5 ± 2.3

5.4 ± 2.0

0.014

  1. MAP Mean arterial pressure, HR Heart rate, decrease in MAP = (baseline MAP − lowest MAP)/baseline MAP × 100%; FT Flow time, CT Cycle time, FTc(W) Carotid flow time corrected by Wodey’s equation, FTc(B) Carotid flow time corrected by Bazett’s equation, DSIFTc and DSIVTI Doppler shock index with FTc and VTI in the denominator; VTI Velocity time integral
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Perioperative Medicine

ISSN: 2047-0525