Overview on Modes, Adjusting Initial Settings and Usage of Ventilation | Medvarsity
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Three basic ventilatory modes can be considered based on the types of respiratory cycles offered to the patient. Assist/Control ventilation (A/C), Pressure Support Ventilation (PSV), and Synchronized Intermittent Mandatory Ventilation (SIMV) with PS, a hybrid mode of the first two, are the options.
There have been advancements in ventilation techniques. These include hybrid modes such as Pressure Regulated Volume Control (PRVC), Volume Assured Pressure Support Ventilation (VAPS), and AUTOFLOW, which combine characteristics of A/C-VCV and A/C-PCV modes. There are also modes that provide airway pressure in proportion to the patient's muscular effort, such as Proportional Assisted Ventilation (PAV), Automatic Tube Compensation (ATC), Neurally Adjusted Ventilatory Assist (NAVA), and mechanisms for PSV self-adjustment (Volume Support Ventilation).
Although promising, most of these methods have yet to be incorporated into routine mechanical ventilation use, and there is little evidence of their superiority over basic modes when compared to relevant clinical outcomes such as mechanical ventilation duration and survival.
Dr. Sai Praveen Haranath discusses everything you need to know about various modes, adjusting the initial settings of a ventilator and usage of ventilation.