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Updated: Aug 11, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Clinical analysis of propofol deep sedation for 1,104 patients undergoing gastrointestinal endoscopic procedures: a
Stojanka Gasparović1, Nadan Rustemović, Milorad Opacić
1Department of Anesthesiology, Dubrava University Hospital, Zagreb, Croatia.
Aim:
To analyze the hemodynamic and respiratory effects of propofol on patients undergoing gastroscopy and colonoscopy.
Methods:
In this prospective study, conducted over a period of three years, 1,104 patients referred for a same day GI endoscopy procedure were analyzed. All patients were given a propofol bolus (0.5-1.5 mg/kg). Arterial blood pressure (BP) was monitored at 3 min intervals and heart rate and oxygen saturation (SpO2) were recorded continuously by pulse oximetry. Analyzed data acquisition was carried out before, during, and after the procedure.
Results:
A statistically significant reduction in mean arterial pressure was demonstrated (P < 0.001) when compared to pre-intervention values, but severe hypotension, defined as a systolic blood pressure below 60 mmHg, was noted in only 5 patients (0.5%). Oxygen saturation decreased from 96.5% to 94.4 % (P < 0.001). A critical decrease in oxygen saturation (< 90%) was documented in 27 patients (2.4%).
Conclusion:
Our results showed that propofol provided good sedation with excellent pain control, a short recovery time and no significant hemodynamic side effects if carefully titrated. All the patients (and especially ASA III group) require monitoring and care of an anesthesiologist.
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