Abstract
Acute Respiratory Distress Syndrome (ARDS) accounts for 10% of ICU admissions and
affects 3 million patients each year. Despite decades of research, it is still associated
with one of the highest mortality rates in the critically ill. Advances in supportive
care, innovations in technologies and insights from recent clinical trials have contributed
to improved outcomes and a renewed interest in the scope and use of Extracorporeal
life support (ECLS) as a treatment for severe ARDS, including high flow veno-venous
Extracorporeal Membrane Oxygenation (VV-ECMO) and low flow Extracorporeal Carbon Dioxide
Removal (ECCO2R). The rationale being that extracorporeal gas exchange allows the
use of lung protective ventilator settings, thereby minimizing ventilator-induced
lung injury (VILI). Ventilation strategies are adapted to the patient's condition
during the different stages of ECMO support. Several areas in the management of mechanical
ventilation in patients on ECMO, such as the best ventilator mode, extubation-decannulation
sequence and tracheostomy timing, are tailored to the patients' recovery. Reduction
in sedation allowing mobilization, nutrition and early rehabilitation are subsequent
therapeutic goals after lung rest has been achieved.
Keywords
extracorporeal membrane oxygenation - extracorporeal life support - acute respiratory
distress syndrome - ventilator-induced lung injury - ultra-protective lung ventilation
- mechanical ventilation - mechanical ventilation strategies