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Table 4 Subgroup analysis for peak blood lactates and lowest Do2 on CPB

From: Hyperlactatemia during cardiopulmonary bypass: determinants and impact on postoperative outcome

  No HL or HG HL alone HG alone HL and HG
  (n = 374) (n = 4) (n = 69) (n = 23)
Peak blood lactate (mmol/l) 1.27 ± 0.46a 3.42 ± 0.85b 1.62 ± 0.61c 5.82 ± 3.34d
Lowest Do2 (ml/minute per m2) 294 ± 41 294 ± 53 287 ± 44 255 ± 62e
  1. ap < 0.01 versus the other three groups; bp < 0.01 versus groups HG alone and HL plus HG; cp < 0.01 versus groups HL alone and HL plus HG; dp < 0.01 versus groups HL alone and HG alone; ep < 0.01 versus group no HL or HG and p = 0.014 versus group HG alone. CPB, cardiopulmonary bypass; Do2, oxygen delivery; HG, hyperglycemia; HL, hyperlactatemia.