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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Gastroenterologist-administered propofol for therapeutic upper endoscopy with graphic assessment of respiratory activity: a case series.

BACKGROUND: Traditional methods of sedation and analgesia for advanced endoscopic procedures can be inadequate and frequently prolong recovery room observation. Propofol is a rapidly acting agent that produces an excellent hypnotic state, but its use is typically limited to anesthesiologist-assisted cases because of the inadequacy of current monitoring standards to reliably detect early stages of respiratory depression. METHODS: Ten patients undergoing advanced upper endoscopic procedures (endoscopic retrograde cholangiopancreatography, endoscopic ultrasound, esophageal stent placement) received a propofol infusion under the control of a second qualified gastroenterologist with advanced cardiac life support skills. Graphic assessment of respiratory activity was made by using a sidestream carbon dioxide detecting cannula. Patient satisfaction was measured with a 100 mm visual analog scale. Recovery scores were measured by standardized scoring of discharge criteria. RESULTS: Monitoring with graphic assessment of respiratory activity detected early phases of respiratory depression, resulting in a timely decrease in the propofol infusion without significant hypoxemia, hypercapnia, hypotension, or arrhythmias. Satisfaction scores were extremely high (median score 92 of 100) and 9 of 10 patients met discharge criteria at 15 minutes after discontinuation of the propofol infusion. CONCLUSIONS: With the use of monitoring by graphic assessment of respiratory activity, propofol infusion by a second qualified gastroenterologist for prolonged upper endoscopic procedures is safe and results in high levels of patient satisfaction with rapid recovery times.[1]


  1. Gastroenterologist-administered propofol for therapeutic upper endoscopy with graphic assessment of respiratory activity: a case series. Vargo, J.J., Zuccaro, G., Dumot, J.A., Shay, S.S., Conwell, D.L., Morrow, J.B. Gastrointest. Endosc. (2000) [Pubmed]
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