Mask adaptor--a novel method of positive pressure ventilation during propofol deep sedation for upper GI endoscopy

Gastrointestinal Endoscopy
Yongzi Cong, Xizhuo Sun

Abstract

Propofol dosages required for upper GI endoscopy are often high enough to pose serious risks of respiratory depression. Stopping the procedure and bag ventilating a patient until the propofol wears off may be a safer management because traditional mask ventilation is not available. We introduce the mask adaptor for upper GI endoscopy (MAUGE), a new method of positive pressure ventilation during upper GI endoscopy, and assessed its feasibility and safety. Subjects received propofol 1.5 to 2.5 mg/kg injection followed by repeated doses of 20 to 30 mg if necessary. Tertiary hospital. Thirty patients, American Society of Anesthesiologists class I to III, undergoing upper GI endoscopy and requesting sedation. After connecting the MAUGE to the anesthetic ventilation circuit and mask, the endoscope was inserted into the patient's digestive tract through the channel for endoscopes in the MAUGE and through the mask. Oxygen was supplied to the respiratory tract through the channel for gas in the MAUGE and through the mask by using positive pressure ventilation by bag-valve-mask ventilation. Heart rate, noninvasive blood pressure, end-tidal carbon dioxide tension, oxygen saturation, respiratory waveform. Oxygen saturation was more than 95...Continue Reading

References

May 27, 1999·Gastrointestinal Endoscopy·R G Graber
Sep 1, 2005·Anesthesiology·Peter R EastwoodDavid R Hillman

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Citations

Apr 15, 2010·Gastroenterology Nursing : the Official Journal of the Society of Gastroenterology Nurses and Associates·Marsha L Cirgin Ellett
Dec 3, 2014·The American Journal of Emergency Medicine·Reuben J Strayer, Nicholas D Caputo
Jul 13, 2018·European Respiratory Review : an Official Journal of the European Respiratory Society·Raffaele Scala, Lara Pisani
Mar 10, 2021·British Journal of Anaesthesia·Shujing ZhouDiansan Su

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