High Frequency Ventilators
This ventilator is the first intention mode of ventilation for all infants <27 weeks at UCDMC
What is the Bunnel Life Pulse Jet Ventilator?
While conventional breaths mainly operate on the gas moving as bulk flow, high frequency ventilation operates mainly on the principles of this type of flow
What is laminar flow?
In this disease caused by surfactant deficiency neonates have higher oxygenation needs due to decreased diffusive capacity and airway collapse
What is RDS?
This the type of cell that premature neonates are lacking in that causes them to have stiff lungs
What are t?ype 2 pneumocytes?
This parameter, not PaCO2, is the direct primary control of ventilation in HFJV
What is PIP, amplitude, or driving pressure?
This older high frequency ventilator gives you precise control of your mean airway pressure and features active exhalation
What is the 3100 A high frequency oscillation ventilator?
This type of flow is a combination of laminar flow and molecular diffusion where high frequency oscillations create velocity gradients across the airway where gas in the center travels faster, and gas near the wall moves slower.
What is Taylor Dispersion?
This disease is characterized by accumulation of lung damage and the necessity of oxygen therapy upon discharge
What is Bronchopulmonary Dysplasia?
This stage of development is between 17 weeks GA and 27 weeks GA, and is characterized by primitive alveoli
What is the canalicular stage?
This high frequency ventilator requires the use of special hubs specific to the size of the patients ETT
What is the Jet ventilator?
This high frequency ventilator is often used for transport.
What is the TxP?
This physics principle used in high frequency ventilation utilizes oscillations to help evenly distribute gas between different lung regions
What is Pendullft?
What is pulmonary interstitial emphysema?
This stage between 27 weeks and 36 weeks is marked with improved has exchange and developed alveoli
What is the saccular stage?
This setting on the HFOV determines lung volume and is the key determinant of oxygenation
What is the MAP?
This high frequency ventilator is used only in the PICU at UCDMC and gives conventional breaths using oscillations and the principles of high frequency ventilation
What is the VDR-4?
This is the physics principle that creates a constant stream of fresh gas down the middle of the airway with expired gas traveling down the outside of the airway, especially with the HFJV/
Coaxial flow
This is another older name for RDS
What is Hyaline Membrane Disease?
This distinct feature of the chest wall of neonates decreases their ability to take deep breaths and makes them prone to airway collapse
This assessment is the tools essential to determine if tidal volume is adequate in high frequency ventilation
What is chest wiggle?
This is one of the names for the box that creates the jet pulses on the high frequency jet ventilator.
What is the flow-interrupter, chatterbox, or whisper box?
This principle pertaining mostly to HFOV helps to ventilate with low Vt, evenly distribute across distal airways, reduced risk of volutramua and atelctrauma
What is wave propagation and pressure transmission?
This disease is caused by infants that get meconium in their airways during childbirth
What is Meconium Aspiration Syndrome?
This feature of neonatal and pediatric airways makes them especially vulnerable to obstruction and collapse
What are small airways?
What is the ratio of MAP to Amplitude where you run the risk of active exhalation overcoming opening pressure?
What is a 1:3 ratio?