Cardiothoracic & vascular anesthesia
Reliability of Bioreactance and Pulse-Power Analysis in Measuring Cardiac Index During Open Abdominal Aortic Surgery
Authors' conclusion
The CI measurements achieved with Starling SV and LiDCOrapid were not interchangeable with TDCO, and the ability to track changes in CI was poor.
Study context
- Population
- Patients undergoing elective open abdominal aortic surgery, Oulu University Hospital, Finland627 and 497 measurement pairs
- Participants
- 40 patients
- Exposure
- Bioreactance (Starling SV) and pulse-power analysis (LiDCOrapid) vs pulmonary artery catheter thermodilution (thermodilution cardiac output (TDCO))
- Outcome
- Accuracy, precision and trending ability of cardiac index vs TDCO (Bland-Altman agreement; four-quadrant plots with error grids)
- Follow-up
- Intraoperative
Methodological detailsprospective, single-centre
- Prospective
- Single-centre
Main finding
As reported in the abstract
Agreement with TDCO (Bland-Altman)
Bias
0.18 L/min/m²
95% CI 0.13–0.23
Starling SV · wide LOA −1.12 to 1.47 L/min/m²
Bias
−0.15 L/min/m²
95% CI −0.21 to −0.09
LiDCOrapid · wide LOA −1.56 to 1.37
Starling SV
63.7
95% CI = 52.4–71.0
Percentage error (PE)
LiDCOrapid
68.7
95% CI = 54.9–79.6
PE
Observational data: associations, not effects.
Further findings
Trending ability (four-quadrant plots with error grids)
- Trending ability of neither device was sufficient
Original publication
Reliability of Bioreactance and Pulse-Power Analysis in Measuring Cardiac Index During Open Abdominal Aortic Surgery. J Cardiothorac Vasc Anesth. Published 12 February 2024. doi:10.
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