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Table 2 Descriptive data and statistics

From: Coagulation during elective neurosurgery with hydroxyethyl starch fluid therapy: an observational study with thromboelastometry, fibrinogen and factor XIII

  Reference interval Baseline After 1 L HES (patients receiving ≥1 L HES) P value End of surgery P value Morning after surgery P value
Baseline vs after 1 L HES (patients receiving ≥1 L HES) Baseline vs end of surgery Baseline vs morning after surgery
Analysed in all patients (n = 40)
 CT (s) 38–79 50.5 (36–121) 63 (37–125) <0.0001 57 (38–101) [3] 0.027 54 (36–97) [5] 0.41
 CFT (s) 34–159 110.5 (64–286) 170 (97–325) <0.0001 135 (74–311) [3] <0.0001 116 (57–276) [5] 0.13
 Alpha angle (°) 63–83 68 (51–80) 58 (48–70) <0.0001 64 (46–75) [3] <0.0001 68 (45–79) [5] 0.034
 MCF (mm) 50–72 59 (39–69) 50 (38–74) <0.0001 55 (38–65) [3] <0.0001 58 (46–69) [6] 0.24
 FIBTEM-MCF (mm) 9–25 12 (4–24) 7 (0–12) <0.0001 9 (2–18) [5] <0.0001 14 (5–26) [5] 0.051
 Fibrinogen (g/L) 2–4 1.9 (0.9–3.3) 1.4 (0.6–2.8) <0.0001 1.5 (0.6–2.8) <0.0001 2.4 (0.6–3.4) [5] 0.012
Analysed in patients receiving ≥1000 mL HES (n = 25)
 FXIII (kIU/L) 0.7–1.4 0.9 (0.43–>1.30) 0.62 (0.32–1.16) <0.0001 0.68 (0.39–1.19) [3] <0.0001 0.84 (0.44–>1.30) [3] <0.0001
 TAT (μg/L) 1.0–4.1 4.4 (2–68) [1] 7.2 (2–98) 0.0087 23.4 (2–142) [3] 0.0004 8.1 (3–449) [2] 0.0032
 PAP (μg/L) 120–700 541.3 (275–1997) 419.5 (218–1478) <0.0001 392.4 (276–1339) [3] <0.0001 481.0 (288–2297) [2] 0.80
  1. Data is presented as median values (range) [missing]. Italicized P values are statistically significant (P < 0.0083)
  2. HES hydroxyethyl starch, CT clotting time, CFT clot formation time, MCF maximum clot firmness, TAT thrombin-antithrombin complex, PAP plasmin-α2-antiplasmin complex, FXIII factor XIII