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Randomized Controlled Trial
. 2022 Mar 28;22(1):85.
doi: 10.1186/s12871-022-01630-8.

Effectiveness of single loading dose of dexmedetomidine combined with propofol for deep sedation of endoscopic retrograde cholangiopancreatography (ERCP) in elderly patients: a prospective randomized study

Mo Chen #  1 , Yi Sun #  1 , Xueyan Li  1 , Chun Zhang  1 , Xiaochen Huang  1 , Yiming Xu  1 , Chengyong Gu  2
Affiliations
Randomized Controlled Trial

Effectiveness of single loading dose of dexmedetomidine combined with propofol for deep sedation of endoscopic retrograde cholangiopancreatography (ERCP) in elderly patients: a prospective randomized study

Mo Chen et al. BMC Anesthesiol. .

Abstract

Background: Endoscopic retrograde cholangiopancreatography (ERCP) is an advanced endoscopic procedure and requires deep sedation. Deep sedation with dexmedetomidine for the respiratory drive preserved has become popular in recent years. However, the use of dexmedetomidine in elderly patients is controversial because its adverse events are more common. The objective of this study was to investigate the effectiveness of a single loading dose of dexmedetomidine combined with propofol for deep sedation of ERCP in elderly patients.

Methods: In this prospective randomized trial, 49 elderly patients undergoing ERCP were randomly allocated to the dexmedetomidine (DEX) or propofol (PRO) groups. The single loading dose of dexmedetomidine was set at 0.5 μg/kg at the start of anesthesia induction and loading for 10 min. The primary outcome was the cumulative dose of propofol. Secondary outcomes included time to awake, the frequency of airway interventions, and hemodynamics.

Results: The intraoperative cumulative dose of propofol was lower in the DEX group (111.0 ± 12.6 μg/kg/min) than the PRO group (143.7 ± 23.4 μg/kg/min) (P < 0.001). There was no statistically significant difference in the time to awake between the two groups. The incidence of artificial airway interventions and hypotension in the PRO group (36%, 60%) were significantly higher than those in the DEX group (4.2%, 16.7%) (P = 0.011, P = 0.003, respectively). In addition, the occurrence of bradycardia increased significantly in the DEX group (58.3%) compared with the PRO group (12%) (P < 0.001).

Conclusions: The single loading dose of dexmedetomidine combined with propofol can reduce propofol consumption and artificial airway intervention and provide better hemodynamic stability than propofol for deep sedation in elderly patients during ERCP.

Trial registration: www.chictr.org.cn (Registration number ChiCTR1900028069, Registration date 10/12/2019).

Keywords: Deep sedation; Dexmedetomidine; Elderly patients; Endoscopic retrograde cholangiopancreatography; Propofol.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Consort diagram
Fig. 2
Fig. 2
Mean arterial pressure, heart rate, and SpO2 at different time points during ERCP. Data are presented as mean ± standard deviation. MAP Mean arterial pressure
See this image and copyright information in PMC

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