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The Effects Of Aerosol Drug Delivery On Airway Resistance Through Heat-Moisutre Exchangers, Matthew Thomas Hart
The Effects Of Aerosol Drug Delivery On Airway Resistance Through Heat-Moisutre Exchangers, Matthew Thomas Hart
Respiratory Therapy Theses
Introduction: The use of heat moisture exchangers (HMEs) is becoming more popular with many institutions delivering aerosolized medications between the HME and the endotracheal tube of patients being mechanically ventilated. When HMEs become saturated resistance can increase which can cause changes that can lead to patient-ventilator dysnchrony, development of intrinsic PEEP, and weaning difficulty. The purpose of this study was to determine the effects of aerosol drug delivery on resistance through heat-moisture exchangers. Method: An in-vitro model to simulate exhaled heat and humidity from a patient’s lungs was developed by connecting the test lung to a cascade humidifier that was …
How Does Alteration Of Airway Resistance Affect Delivered Tidal Volume In Adult Patients Receiving High-Frequency Oscillatory Ventilation?, Essam Ali Aljamhan
How Does Alteration Of Airway Resistance Affect Delivered Tidal Volume In Adult Patients Receiving High-Frequency Oscillatory Ventilation?, Essam Ali Aljamhan
Respiratory Therapy Theses
Concerns exist regarding the ability of HFOV to provide the needed lung protective ventilation for adult patients with ARDS. HFOV is increasingly being used as a lung protecting ventilation mode even if some of its protective attributes may be lost as the airway resistance (Raw) increases or decreases. In fact, in cases of shifting air resistance, HFOV may have caused lung injury. PURPOSE: The purpose of this study was to investigate the effect of airway resistance on tidal volume (Vt) delivered by HFOV to adult patients. Also, the study intended to determine direction for volume change when resistance increases or …