Validation of the new Complior sensor to record pressure signals non-invasively
| Autor: | Benjamin Sztrymf, Frédéric Jacobs, Christian Richard, Sandrine C. Millasseau, Denis Chemla |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Male Pulse Wave Analysis Critical Care Systole Hemodynamics Health Informatics Critical Care and Intensive Care Medicine Vascular Stiffness Diastole Heart Rate medicine.artery Catheterization Peripheral medicine Humans Time domain Prospective Studies Radial artery Mathematics Aged Monitoring Physiologic Aged 80 and over business.industry Reproducibility of Results Blood Pressure Determination Signal Processing Computer-Assisted Equipment Design Middle Aged Pressure sensor Anesthesiology and Pain Medicine Blood pressure Amplitude Frequency domain Radial Artery Female Telecommunications business Biomedical engineering |
| Zdroj: | Journal of clinical monitoring and computing. 27(6) |
| ISSN: | 1573-2614 |
| Popis: | The Complior device (Alam Medical, France) has contributed to the rise of arterial stiffness as a measure of cardiovascular risk. In its latest version (Complior Analyse) the sensor records pressure instead of distension waveforms thus allowing the measurement of central pressure and pulse wave analysis. The aim of our study was to verify that the new sensor measures pressure waveforms accurately in both time and frequency domain. Invasive and non-invasive signals were recorded simultaneously at the radial artery and compared in the frequency and time domain in haemodynamically stable intensive care unit patients. Twelve patients entered the study (8 men, 4 women, mean age 69 ± 17 years). Heart rate was 90 ± 15 bpm, systolic blood pressure 133 ± 19 mmHg and diastolic blood pressure 68 ± 15 mmHg. There was no statistical difference in the amplitude of harmonics between the invasive signal and Complior signal. When superimposing waveforms in the time domain, there was a small difference in the form factor (4.2 ± 2.8 %) and in the absolute area between the 2 waveforms (3.3 ± 1.7 mmHg·s(-1)). These differences were of the same magnitude as the beat-to-beat variation of the form factor (3.3 %) and of the absolute area (3.1 mmHg·s(-1)), respectively. The second systolic peak was detectable in 4 subjects, with no statistical difference between invasive and non-invasive values. The new pressure sensor of the Complior Analyse device recorded pressure waveforms accurately and could be used to perform pressure wave analysis. |
| Databáze: | OpenAIRE |
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