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Table 2 Hemodynamic and subclavian vein ultrasound data

From: Effect of subclavian vein diameter combined with perioperative fluid therapy on preventing post-induction hypotension in patients with ASA status I or II

 

PIH (n = 71)

Non-PIH (n = 75)

P Value

Baseline MAP, mmHg

93.2 ± 11.7

94.8 ± 9.6

0.353

Baseline HR, beats/min

70.0 [63.0–81.0]

72.0 [60.0–76.0]

0.372

Decrease in MAP (%)

31.5 [24.1–34.9]

18.2 [13.8–22.1]

< 0.001

Percentage change in HR (%)

11.9 [5.3–20.9]

11.3 [5.4–20.5]

0.868

Lowest MAP, mmHg

64.0 [62.0–68.0]

76.0 [73.0–82.0]

< 0.001

dSCVmax; cm

0.84 ± 0.15

0.89 ± 0.14

0.022

dSCVmin; cm

0.37 [0.43–0.50]

0.48 [0.56–0.66]

< 0.001

SCVCI (%)

49.4 [45.4–51.3]

37.3 [29.2–43.0]

< 0.001

SCVvariability (%)

16.4 [14.7–17.2]

11.5 [8.6–13.7]

< 0.001

  1. MAP, mean arterial pressure; HR, heart rate; dSCVmax, maximum value of subclavian vein diameter; dSCVmin, minimum value of subclavian vein diameter; SCVCI, subclavian vein collapsibility index; SCVvariability, subclavian vein variability;\(Decrease\,in\,MAP\, = \,\left( {\frac{{Baseline\,MAP - Minimum\,MAP}}{{Baseline\,MAP}}} \right) \times 100\%\)\(Percentage\,change\,in\,HR = \left( {\frac{{Baseline\,HR - HR\,at\,minimum\,MAP}}{{Baseline\,HR}}} \right) \times 100\%\)
  2. Normally distributed results were reported as mean ± standard deviation (‾x ± s), while non-normally distributed data were expressed as medians [interquartile ranges]
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BMC Anesthesiology

ISSN: 1471-2253

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