Performance of Cardiac Output Measurement Derived From Arterial Pressure Waveform Analysis in Patients Requiring High-Dose Vasopressor Therapy

Evaluation of the non-calibrated pulse contour cardiac output monitor FloTrac/Vigileo against thermodilution in standing horses

“…This result is interpreted as reflecting the incorrect computation of vascular tone (Metzelder et al. ), at least for the second‐generation software tested. No correlation between CO TD and MAP was found in the raw data.…”

“…The efficacy of the monitoring device depends on the correct computation of vascular tone (Metzelder et al. ).…”

“…Measurements of CO without calibration are critically dependent upon computation of vascular tone (Metzelder et al. ). The second‐generation software V1.10 used in this study was rated in a meta‐analysis in human medicine as giving adequate results (Mayer et al.…”

Update on minimally invasive hemodynamic monitoring in thoracic anesthesia

“…Significant and rapid changes of vascular tone may result in reduced measurement accuracy. This is of concern in uncalibrated devices that may show different performance based on their varying proprietary algorithms [35][36][37][38]. By contrast, calibrated devices can be adapted in these situations by recalibration.…”

Hemodynamic Monitoring in the Intensive Care Unit

“…Because peripheral arterial lines are nearly ubiquitous in many ventilated patients, the lack of necessity for any further invasive catheter placement, the lack of any calibration even during setup, and the ease of setup are its major advantages. Precision under circumstances of high‐dose vasopressor therapy, however, likely remains an issue despite multiple revisions to the software algorithm designed to improve this 57 …”