APVcmv - Adaptive Pressure Ventilation - Controlled Mechanical Ventilation Summary Most Similar to PRVC - Pressure Regulated Volume Control Basic Set Parameters: 1) Rate 2) Target Tidal Volume 3) PEEP 4) FiO2 What's Happening - The ventilator adapts to the exhaled volume and in doing so assesses plateau pressure and static compliance. - The vent finds the correct pressure to deliver the desired volume. Baseline pressure is constant Best for: - Passive or partially active patients - The more work the patient does the less support it gets from the ventilator. - May be more comfortable for patients Downside: - May be uncomfortable for patients with a strong resp drive or neurogenic breathing patterns - Active patients may get more than set target minute ventilation (hyperventilate) Troubleshooting - If hyper/hypo-ventilating: - Confirm the height/ IBW are correct as the target tidal volume may be too high / too low (respectively) - Can adjust the I:E ratio, patient trigger and sensitivity, rise time Assess: Pressures generated by vent to hit the target volume Casey Albin, MD @caseyalbin #APVcmv #APV #Adaptive #Pressure #Mechanical #Ventilation #management #pulmonary
