Asynchrony

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Reverse triggering is a type of dyssynchrony that occurs when a patient effort occurs after (‘is triggered by’) the initiation of a ventilator (non-patient triggered) breath.  Usually, it is a phenomenon occurring over many consecutive breaths and also referred to as ‘entrainment’. Diagnosis The visual detecting of reverse triggering is slightly different between modes of…

Flow starvation is a form of patient-ventilator dyssynchrony that occurs when a patient is demanding more flow than the ventilator provides.

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Short cycling is a common form of patient-ventilator dyssynchrony. It occurs when a patient-triggered breath cycles off prior to the patient effort being completed.

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Ineffective efforts are one of the most common forms of patient-ventilator dyssynchrony.  They occur when the patient is unable to trigger the ventilator during the expiratory phase of ventilation.

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