At a glance
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Evaluation of Tidal Volume Challenge to Detect Preload-responsiveness in Patients With Acute Respiratory Distress Syndrome (ARDS) During Prone Position
In Brief
An observational study evaluating Tidal volume challenge, End-expiratory occlusion test, and 1 other intervention for Acute Respiratory Distress Syndrome and 2 related conditions. Completed, enrolled 58 participants across 1 site.
Detailed Summary
Evaluation of preload responsiveness in ARDS patients during prone position is difficult and only one study showed Trendelenburg manoeuvre can be used in this group of patients. This study aims to investigate whether end-expiratory occlusion test, tidal volume challenge (using the changes in PPV) can be used to evaluate preload responsiveness in patients with ARDS ventilated with a low tidal volume and who underwent a PP session.
Study Details
Timeline
Interventions
Increasing tidal volume from 6 to 8 mL/kg during 1 min
Interrupting the ventilator at end-expiration for 15-30 s and assessing the resulting changes in cardiac output
Patients remained in prone position with a 13° upward bed angulation throughout the study and then be positioned in a declining position at -12 ° for 1 minute