Feasibility of breath monitoring in patients undergoing elective colonoscopy under propofol sedation: A single-center pilot study

Figure 1 Respiratory rate-monitoring device is comprised of a monitor and an oxygen mask with a built-in sensor.

Figure 2 Typical courses of SaO₂ and RR (respir8^TM) showing the variability in the monitoring data. Blue line: respiratory rate (breaths/min); Red line: SaO₂ measured by pulse oximetry; Green triangles: Incremental boluses of propofol.