Underdamping/Resonance Artifacts
Conditions
Brief summary
Invasive blood pressure (IBP) is the gold standard for arterial pressure (AP) monitoring in critically ill patients. Nevertheless, IBP may be affected by underdamping/resonance artifacts, that eventually lead to AP overestimation. In these cases, when a pulse contour method is applied, wrong hemodynamic data are also delivered by the monitor. In order to overtake this issue, MostCareUp (a PCM powered by Pressure Recording Analytical Method, PRAM), has been implemented with a dynamic electronic filter (EFMC) that automatically corrects the resonant AP waveform. In order to test the EFMC, the electronically corrected AP and the derived cardiac output were compared with respective raw data corrected with the Accudynamic, an adjustable damping device specifically manufactured for normalizing the pressure waveform (in our study: the reference method).
Interventions
DEVICEMostCareUp
Pressure transducers have been connected to the MostCareUp and the hemodynamic parameters compared as follows: no filter, electronic filter, no electronic filter plus Accudynamic (our reference system). Invasive pressure values have been then compared with the non-invasive ones.
Sponsors
University of Florence
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
\- ICU patients with invasive blood pressure (radial artery) affected by underdamping/resonance artifacts;
Exclusion criteria
\- Arrhythmias
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The present study was aimed to test the MostCareUp electronic filter | 15 minutes | To test the electronic filter comparing the electronically corrected arterial pressure and the derived cardiac output values with those corrected with the Accudynamic, a mechanical adjustable damping device commonly used in clinical practice. |
Countries
Italy
Outcome results
None listed