The Science Journal of the American Association for Respiratory Care

2010 OPEN FORUM Abstracts

PERFORMANCE OF A DISPOSABLE SINGLE PATIENT USE CONTINUOUS CUFF PRESSURE MONITORING SYSTEM, A BENCH TEST.

Matthew Davis, Maria Madden; Respiratory Care, UMMC/Shock Trauma, Baltimore, MD

Background The cuff pressure of an artificial airway should be monitored on a regular basis for both an adequate seal and a safe pressure range. A disposable single patient use continuous cuff pressure monitoring system is designed to safely monitor cuff pressures without the use of an external pressure manometer. For our bench test we used the pressure easy device. Methods The loss of pressure from using the pressure monitor itself was measured by disconnecting and reconnecting the cufflator and then measuring pressure. Then the pressure easy was attached to an ETT. The green circle of the pressure easy was placed at the top of the visible range for the high, the middle for the medium, and the bottom for the low pressure range. Then the pressure was measured at the three different ranges. Then six ETTs were pressurized to 25 cm H20, three of which had a pressure easy attached and three that did not. Pressure was then measured eight hours later. Results After ten trials were performed an average of -3.3 cm H20 was observed per disconnect/reconnect of the cufflator. The pressure of the high range was observed to be 28 cm H20, the medium to be 25 cm H20, and the low to be 22 cm H20. Conclusion The pressure easy had equal pressure degradation as compared to a normal ETT. Thus the pressure easy is reliable for continuous cuff pressure monitoring. If the green circle is visible then the cuff pressure is within 22 – 28 cm H20. The pressure leak during connection of the cufflator to the pilot balloon should be taken into consideration when monitoring the cuff pressure of an artificial airway. The authors suggest that when minimal occluding volume is obtained that adding approximately three cm H20 above MOV may be a novel idea and further research is needed to validate these findings. Sponsored Research - None