Berlin et al. Automated expiratory ventilation assistance through a small endotracheal tube can improve venous return and cardiac output. Intensive Care Med Exp. 2019, 7(1), 6
Prof Heerdt and co-workers showed in a porcine model that EVA ventilation with a Negative End Expiratory Pressure (NEEP; -8 mbar) improved hemodynamics during normovolemia and during hypovolemia after hemorrhage as compared with VCV with PEEP. Before hemorrhage EVA-NEEP increased stroke volume (+27%; p=0.003) and cardiac output (+21%; p=0.023), and reduced central venous pressure (-30%; p=0.013) compared with Volume Controlled Ventilation with PEEP (4 mbar). After hemorrhage during hypovolemia the effects were more pronounced leading to an 41% increased cardiac output, higher mean arterial pressure and increased venous return for EVA – NEEP ventilation as compared with VCV-ZEEP (0 mbar). For this study a prototypical small automated ventilator based upon the EVA principle was used to generate a controlled period of negative EEP. Commented by: L. Böttinger and J.W.A. van der Hoorn. Negative pressure ventilation – a special application of expiratory ventilation assistance. Intensive Care Med Exp 2019, 7(1), 22
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Hamad Medical Corporation (HMC) Qatar, has introduced our ventilator Evone in their daily clinical practice, being the first in the Middle East. We congratulate the anesthesiology team led by Prof. Dr. Marco Marcus with regional recognition of their fantastic...