Related Experiment Video
Updated: Jun 1, 2026

Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge
Published on: January 20, 2023
[Assessment of cardiovascular preload and response to volume expansion]
C Sabatier1, I Monge, J Maynar
1Área de Críticos, Hospital de Sabadell, CIBER Enfermedades Respiratorias, Institut Universitari Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Barcelona, España. csabatier@tauli.cat
Abstract:
Volume expansion is used in patients with hemodynamic insufficiency in an attempt to improve cardiac output. Finding criteria to predict fluid responsiveness would be helpful to guide resuscitation and to avoid excessive volume effects. Static and dynamic indicators have been described to predict fluid responsiveness under certain conditions. In this review we define preload and preload-responsiveness concepts. A description is made of the characteristics of each indicator in patients subjected to mechanical ventilation or with spontaneous breathing.
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