Anaes Vivas · Applied cardiovascular & respiratory physiology
Equipment viva — the cardiac output monitor
An equipment viva on the cardiac-output monitoring — the pulse-contour analysis (the stroke volume from the arterial-pressure waveform area), the oesophageal Doppler (the aortic blood-flow velocity), the calibration, and the pulse-pressure and the stroke-volume variation.
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Prompt
An arterial-line-based pulse-contour cardiac-output monitor and an oesophageal Doppler probe. Describe the principles by which they estimate the cardiac output and the stroke volume, and the value of the dynamic fluid-responsiveness indices.
Stimulus
An arterial-line-based pulse-contour cardiac-output monitor and an oesophageal Doppler probe are shown. Describe the principles by which each estimates the cardiac output and the stroke volume, and explain the value of the dynamic fluid-responsiveness indices.
References2ShowHide
- [2]Mirus M, et al. Hemodynamic monitoring: basic principles. J Clin Monit Comput, 2026.PMID 41493520
- [41493521]Bersten AD, Soni N (eds) Oh's Intensive Care Manual. 8th edition, Elsevier, 2018.