Identifying asynchronies: Reverse trigger

A variety of asynchronies between the patient’s respiratory efforts and programed ventilatory settings have been categorized. Reverse trigger is described as an inspiratory effort occurring after a ventilator-initiated breath may represent form entrainment. In other words, ventilator triggers muscular efforts. It often appears in repetitive, stereotyped pattern. occurs mechanically ventilated patients at risk injury, might be underrecognized bedside has adverse effects on oxygenation ventilation, well potentially increasing lung injury. We can phenotype these events using Campbell diagram (pressure–volume loop) by differentiating their occurrence during inspiration expiration. with sufficient duration result additional ventilator-delivered stacked breath, which cause large tidal volumes increased transpulmonary pressure. Keywords: Asynchrony, ventilator, reverse trigger, entrainment, phenotype.