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Jet ventilation is a high-frequency air delivery system used in hospitals for patients with low oxygen levels that do not improve with normal mechanical ventilation. It provides a high respiratory rate and small tidal volumes to reach lung tissue. It is used for premature infants, pediatric trauma patients, and adults with acute respiratory distress syndrome. Jet ventilation is provided by a mechanical ventilator and is also used during some surgical procedures. It is a good choice for patients who do not respond well to traditional mechanical ventilation.
Jet ventilation is a high-frequency air delivery system featuring rapid mechanical breaths and pressure-controlled exhalations for those experiencing respiratory distress. It is common in hospital settings. It is used for patients of all ages who have low oxygen levels that do not improve with normal mechanical ventilation settings.
The ventilation system provides a high respiratory rate, usually greater than 60 breaths per minute. It also allows small tidal volumes to be delivered, which causes the delivered oxygen to do a better job of reaching the lung tissue. Jet ventilation is used with premature infants who require respiratory assistance and who could suffer lung damage with a conventional ventilator. It is also used for pediatric trauma patients and adults with acute respiratory distress syndrome (ARDS).
Jet ventilation is provided by a mechanical ventilator designed to deliver the rapid breaths described. It has a tube that goes from the machine to the patient by connecting via an adapter to the endotracheal tube placed in the patient’s airway. The jet of oxygen occurs for about 0.02 of a second and the gas is forced into the lungs under small tidal volumes of pressure. The exhalation period is equally short and can be set to be the same length or a few milliseconds longer. The ratio of inhalation to exhalation, the duration and pressure of the jet puffs, and the respiratory rates are all prescribed by the physician.
Rapid ventilation is also used during some surgical procedures because it does not require an airtight seal to be effective. It allows for sufficient gas exchange and airway assessment when the airway requires surgery. In this case, a translaryngeal jet catheter is placed in the neck and trachea. Oxygen is blown through the jet vent at the fastest velocity with the smallest tidal volumes and is efficient enough to keep the lungs ventilated.
Low to high oxygen concentrations can be used with jet ventilation. In clinical studies, outcomes for those who received jet ventilation were much better than those who received conventional ventilation for severe respiratory distress. Lung tissue is less damaged and overdistension and hyperinflation of the lungs is avoided.
Not all patients with severe respiratory failure require the special benefits of jet ventilation. Many patients recover easily after conventional mechanical ventilation and have no residual lung damage. Jet ventilation is a good choice for patients who do not respond well or improve in a timely manner with traditional mechanical ventilation. Jet ventilation is another option your doctor may use to make it easier to manage the oxygenation of a patient with severe respiratory failure.
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