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World J Gastrointest Endosc. Mar 16, 2014; 6(3): 82-87
Published online Mar 16, 2014. doi: 10.4253/wjge.v6.i3.82
Published online Mar 16, 2014. doi: 10.4253/wjge.v6.i3.82
Feasibility of breath monitoring in patients undergoing elective colonoscopy under propofol sedation: A single-center pilot study
Gurpreet W Anand, Ludwig T Heuss, Division of Internal Medicine, Zollikerberg Hospital, 8125 Zollikerberg/Zurich, Switzerland
Author contributions: Anand GW acquired the data; Heuss LT participated in planning the study and performed the colonoscopies as the gastroenterologist.
Correspondence to: Ludwig T Heuss, MD, MBA, Division of Internal Medicine, Zollikerberg Hospital, Trichtenhauserstrasse 20, 8125 Zollikerberg/Zurich, Switzerland. ltheuss@hin.ch
Telephone: +41-44-3972012 Fax: +41-44-3972688
Received: November 21, 2013
Revised: January 26, 2014
Accepted: February 16, 2014
Published online: March 16, 2014
Revised: January 26, 2014
Accepted: February 16, 2014
Published online: March 16, 2014
Core Tip
Core tip: Apnea monitoring is a useful adjunct in assessing the ventilatory status of patients undergoing sedation. Capnography is too expensive to be used during normal endoscopic procedures. A newly developed respiratory rate-monitoring device based on the humidity of expired air enables the real-time assessment of ventilation. Compared with pulse oximetry alone, this new monitoring device detected more respiratory events and may provide earlier warning of impending respiratory abnormalities.