Clinical Evaluation of Subcutaneous Lactate Measurement in Patients after Major Cardiac Surgery

Table 5

Clinical evaluation of 6-hour lactate trend analysis from subcutaneous adipose tissue (ΔsatLAC) versus arterial blood (ΔartLAC) after 6-hour 1-point calibration. Lactate measurements are stratified to positive, stable and negative lactate trends.

𝑛=231 6-hour paired lactate trends	Acceptable measurement %	Unacceptable falsely high %	Unacceptable falsely low %
Positive trend (>20%)	60.0	12.3	27.7
Negative trend (<−20%)	59.2	29.6	11.3
No change (±20%)	56.7	24.7	18.6
Total trend analysis	58.4	22.7	18.9