Haemodynamics, fluids & transfusion
Accuracy and precision of continuous, non‐invasive blood pressure devices: a systematic review and meta‐analyses
Authors' conclusion
Overall, the AAMI criteria for bias and SD were not fulfilled for most of the devices tested and wide limits of agreement are of concern.
Study context
- Population
- Adults65 studies
- Comparison
- Non-invasive continuous arterial BP technologies (volume clamp, applanation tonometry, photoplethysmography) vs invasive arterial measurement
- Outcome
- Pooled bias (mean difference non-invasive vs invasive), SD and limits of agreement for MAP, SBP and DBP; acceptability per AAMI criteria
Methodological detailssix meta-analyses
- Six meta-analyses
Pooled result
As reported in the abstract
Bias and SD vs AAMI criteria
| Group | Bias mean arterial pressure (MAP) | Bias systolic blood pressure (SBP) | Bias diastolic blood pressure (DBP) | SD MAP | SD SBP | SD DBP |
|---|---|---|---|---|---|---|
| T-Line | 2.53 | −0.07 | 3.09 | |||
| Vasotrac | 0.36 | 1.20 | 1.09 | |||
| N-CAT | −0.37 | −3.68 | 0.84 | 6.97 | 7.14 | 6.55 |
| Photoplethysmography | −0.09 | 0.49 | −0.26 | 6.86 | 6.38 |
Bias mean arterial pressure (MAP)
T-Line2.53
Vasotrac0.36
N-CAT−0.37
Photoplethysmography−0.09
Bias systolic blood pressure (SBP)
T-Line−0.07
Vasotrac1.20
N-CAT−3.68
Photoplethysmography0.49
Bias diastolic blood pressure (DBP)
T-Line3.09
Vasotrac1.09
N-CAT0.84
Photoplethysmography−0.26
SD MAP
T-Line— not stated in the abstract
Vasotrac— not stated in the abstract
N-CAT6.97
Photoplethysmography6.86
SD SBP
T-Line— not stated in the abstract
Vasotrac— not stated in the abstract
N-CAT7.14
Photoplethysmography— not stated in the abstract
SD DBP
T-Line— not stated in the abstract
Vasotrac— not stated in the abstract
N-CAT6.55
Photoplethysmography6.38
Original publication
Accuracy and precision of continuous, non‐invasive blood pressure devices: a systematic review and meta‐analyses. Anaesthesia. Published 15 June 2026. doi:10.
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