Arterial waveform analysis in anesthesia and critical care
| Autor: | Wolfgang Buhre, Eric E. C. de Waal, L. J. Montenij |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Cardiac output
Critical Care business.industry Hemodynamics Monitoring system Blood Pressure Stroke Volume Stroke volume Equipment Design Preload Anesthesiology and Pain Medicine Blood pressure Pulse waveform Anesthesia Continuous noninvasive arterial pressure cardiovascular system Medicine Humans Cardiac Output business Monitoring Physiologic |
| Zdroj: | Current opinion in anaesthesiology. 24(6) |
| ISSN: | 1473-6500 |
| Popis: | In this review, we describe the basic principles of arterial waveform analysis (AWA) to assess cardiac output (CO) and cardiac preload. The validity of commercially based hemodynamic monitoring systems is discussed, together with their clinical applications and limitations.Currently, three devices (the FloTrac system, PiCCO monitor, and LiDCO system) are available for measurement of AWA-based CO. In addition, dynamic preload parameters such as stroke volume variation (SVV) and pulse pressure variation (PPV) are determined, which may be useful to predict fluid responsiveness in mechanically ventilated patients.AWA provides a less invasive and easy-to-use alternative for CO measurement. The validity of AWA devices has been verified in a variety of patients and circumstances, but their performance is compromised in the presence of hemodynamic instability, cardiac arrhythmias, or other factors disturbing the arterial pressure waveform. The definitive role of dynamic preload parameters like SVV and PPV is a matter of research. Large trials in which the value of early goal-directed therapy using this technology is studied in relation to outcome are urgently needed. |
| Databáze: | OpenAIRE |
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