How does high-frequency jet ventilation (HFJV) work?
Answer
High-Frequency Jet Ventilation (HFJV) operates by delivering very small tidal volumes at rapid rates using a specialized ET tube adapter known as the life port adapter. HFJV relies on passive exhalation and is used in tandem with a conventional ventilator to provide positive end-expiratory pressure (PEEP).
Life Port Adapter: This adapter replaces the standard ET tube connection and fits snugly to deliver rapid, small tidal volumes through a specialized nozzle. It helps create a transitional flow that pierces through dead space and minimizes turbulent flow.
Passive Exhalation: HFJV relies on passive exhalation, allowing for gentle ventilation and better secretion clearance. This mechanism reduces the risk of alveolar overdistension and lung injury.
PEEP Support: The conventional ventilator provides the necessary PEEP to maintain mean airway pressure. This setup ensures adequate oxygenation and ventilation support.
HFJV is particularly effective for managing ventilation issues and conditions like air leak syndromes and significant secretion clearance, offering a targeted and gentle approach to respiratory support.
Kelly Massa graduated from West Chester University of Pennsylvania in 2008. She started her career at Nemours Children's Health in Wilmington, Delaware, where she joined the CMO and Cardiac OR team and then became the PICU Clinical Lead. In her role as the PICU Lead, she enjoyed providing education not only to RTs but to nurses and physicians as well on mechanical ventilation and other Respiratory topics. Her love of educating and research landed her the current role of Clinical Instructor and Research Coordinator. Since in this role, Kelly has submitted over 30 abstracts to the AARC as well as multiple manuscripts. Kelly also enjoys volunteering her time presenting talks with ICON Academy and at AARC Congress and providing care during medical mission trips to Nigeria.
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