• Tobias Müller, Kristina Thümmel, Christian G Cornelissen, Stefan Krüger, and Michael Dreher.
• Division of Pneumology, University Hospital RWTH, Aachen, Germany.
• Plos One. 2017 Jan 1; 12 (4): e0175394.

BackgroundAccording to current guidelines flexible bronchoscopy is usually performed under sedation. Previously it has been demonstrated that combined sedation with e. g. the combination of midazolam and propofol or an opioid might have several advantages over sedation with just one sedative drug. However, little is known about the efficacy and safety of combined sedation with midazolam, fentanyl and propofol (MFP) compared to sedation with midazolam and fentanyl (MF) or midazolam and propofol (MP).MethodsWe carried out a retrospective analysis of bronchoscopies performed under triple (MFP) or double sedation (MF and MP) in an academic hospital. 1392 procedures were analyzed (MFP: n = 824; MF: n = 272; MP: n = 296). In particular, we compared the occurrence of complications and the dosage of administered sedative drugs between the groups.ResultsThe occurrence of adverse events (MFP vs. MF: odds ratio (OR) 1.116 [95% CI 0.7741 to 1.604]; MFP vs. MP: OR 0.8296 [95% CI 0.5939 to 1.16] and severe adverse events (MFP vs. MF: OR 1.581 [95% CI 0.5594 to 4.336]; MFP vs. MP: OR 3.47 [95% CI 0.908 to 15.15]; all p>0.05) was similar in all groups. The dosage of midazolam was lower in the MFP compared to the MF or MP group (MFP vs. MF: Cohen's d 0.075; MFP vs. MP: Cohen's d 0.225; all p<0.001). In addition patients in the MFP group received significantly less propofol compared to the MP group (Cohen's d 1.22; p<0.001).ConclusionsIn summary we were able to demonstrate that triple sedation can safely be administered during flexible bronchoscopy and is associated with a reduced dosage of midazolam and propofol.

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