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Table 2 Comparison of routine cardiovascular variables and tidal volume between responders and non-responders

From: Neither dynamic, static, nor volumetric variables can accurately predict fluid responsiveness early after abdominothoracic esophagectomy

   Responders Non-responders Pa
Heart rate (bpm) Pre 74 ± 13 (73, 66–80) 69 ± 11 (69, 59–77) 0.143
  Post 75 ± 12 (73, 65–80) 69 ± 9 (68, 62–77) 0.066
Mean arterial pressure (mmHg) Pre 82 ± 14 (82, 70–88) 86 ± 16 (83, 75–95) 0.301
  Post 93 ± 15 (90, 83–105)b 93 ± 14 (93, 82–100)c 0.91
Cardiac index (L/min/m2) Pre 2.6 ± 0.5 (2.6, 2.2-3.0) 2.9 ± 0.3 (2.9, 2.7-3.1) 0.063
  Post 3.4 ± 0.6 (3.4, 2.9-3.8)b 3.1 ± 0.3 (3.1, 2.9-3.4)b 0.095
Stoke volume index (mL/m2) Pre 36.4 ± 7.7 (34.5, 31.2-42.4) 42.5 ± 5.4 (42.8,38.6-47.5) 0.005
  Post 46.4 ± 7.6 (47.3, 39.8-52.2)b 45.6 ± 4.3 (46.4, 42.2-48.9)b 0.635
Hematocrit (%) Pre 30.9 ± 4.4 (29.5, 27.4-32.7) 30.4 ± 4.0 (29.8, 27.7-32.1) 0.855
  Post 27.5 ± 4.1 (26.7, 24.5-29.6)b 27.9 ± 4.1 (27.6, 25.5-29.8)b 0.661
Tidal volume (mL/kg)d   9.0 ± 1.0 (8.8, 8.3-9.4) 8.8 ± 0.8 (8.5, 8.1-9.3) 0.342
  1. Data are presented as mean ± SD (median, interquartile range).
  2. aBetween responders and non-responders.
  3. bP <0.001 as compared with pre-fluid loading.
  4. cP <0.05.
  5. dPer kg of ideal body weight.
  6. Pre, Immediately before volume loading; Post, 10 min after volume loading.