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Table 3 Comparison the variation of parameters before and after drinking at different time points between the two groups

From: Different preoperative fluids do not affect the hemodynamic status but gastric volume: results of a randomized crossover pilot study

  Time Water Carbohydrate
IVCCI T1 0.39 ± 0.17 0.37 ± 0.13
T2 0.34 ± 0.15 0.35 ± 0.12
T3 0.32 ± 0.12 0.35 ± 0.11
T4 0.36 ± 0.13 0.36 ± 0.12
T5 0.38 ± 0.14 0.33 ± 0.13
  p time (T1 to T5) = 0.063 p between groups = 0.867
GV (ml) T1 18.93 ± 30.37 27.89 ± 28.37
T2 27.98 ± 34.63 110.65 ± 73.90
T3 23.11 ± 26.56 38.74 ± 41.11
T4 27.97 ± 19.87 20.29 ± 20.69
T5 24.27 ± 17.86 34.93 ± 33.49
  p time (T1 to T5) = 0.285 p between groups = 0.005
Supine SBP (mmHg) T1 118.50 ± 12.21 112.60 ± 11.24
T2 111.90 ± 11.17 114.50 ± 10.02
T3 113.45 ± 11.69 114.30 ± 13.27
T4 115.25 ± 10.64 108.80 ± 8.74
T5 114.75 ± 9.95 113.95 ± 12.56
  p time (T1 to T5) =0.955 p between groups = 0.551
Supine DBP (mmHg) T1 70.65 ± 9.30 71.85 ± 8.05
T2 68.65 ± 8.67 69.30 ± 7.59
T3 69.60 ± 8.46 70.70 ± 6.99
T4 73.10 ± 9.77 68.65 ± 7.07
T5 69.65 ± 8.99 70.10 ± 8.40
  p time (T1 to T5) =0.809 p between groups = 0.926
Supine HR (bpm) T1 72.05 ± 13.69 70.75 ± 10.19
T2 66.40 ± 10.94 71.90 ± 8.93
T3 64.85 ± 9.72 70.20 ± 7.98
T4 66.15 ± 10.09 64.40 ± 7.24
T5 65.75 ± 9.65 66.75 ± 8.85
  p time (T1 to T5) =0.309 p between groups = 0.513
Orthostatic SBP (mmHg) T1 118.45 ± 12.55 117.20 ± 10.57
T2 114.75 ± 11.62 117.80 ± 12.32
T3 116.00 ± 10.48 115.05 ± 12.60
T4 116.65 ± 10.00 112.30 ± 8.85
T5 117.25 ± 12.78 117.25 ± 14.28
  p time (T1 to T5) =0.381 p between groups = 0.827
Orthostatic DBP (mmHg) T1 77.75 ± 9.11 78.10 ± 6.40
T2 76.45 ± 8.17 76.60 ± 7.47
T3 77.30 ± 7.58 76.70 ± 6.52
T4 77.65 ± 8.00 75.00 ± 6.91
T5 77.60 ± 6.40 75.10 ± 7.29
  p time (T1 to T5) =0.408 p between groups = 0.602
Orthostatic HR (bpm) T1 78.20 ± 13.82 79.35 ± 13.85
T2 74.75 ± 12.83 79.30 ± 10.44
T3 72.70 ± 10.29 76.70 ± 11.29
T4 74.60 ± 9.60 71.65 ± 9.99
T5 72.70 ± 11.68 71.75 ± 10.06
  p time (T1 to T5) =0.191 p between groups = 0.700
Thirst Score T1 1.60 ± 0.60 1.45 ± 0.60
T2 1.35 ± 0.49 1.30 ± 0.47
T3 1.40 ± 0.50 1.50 ± 0.61
T4 1.45 ± 0.51 1.50 ± 0.51
T5 1.60 ± 0.50 1.70 ± 0.57
  p time (T1 to T5) =0.489 p between groups = 0.938
Hunger Score T1 1.50 ± 0.51 1.55 ± 0.51
T2 1.75 ± 0.64 1.30 ± 0.47
T3 1.70 ± 0.57 1.40 ± 0.50
T4 1.80 ± 0.52 1.65 ± 0.59
T5 1.90 ± 0.55 2.00 ± 0.65
  p time (T1 to T5) =0.087 p between groups = 0.221
  1. IVCCI Collapsibility index of Inferior vena cava
  2. GV Gastric volume
  3. SBP Systolic blood pressure
  4. DBP Diastolic blood pressure
  5. HR Heart rate