The Safety and Efficacy Evaluation of Dexmedetomidine for Procedural Sedation and Postoperative Behaviors in Pediatric Populations: A Systematic Review and Meta-analysis

Background: This study systematically evaluated the safety and efficacy of dexmedetomidine for procedural sedation and postoperative behaviors in a pediatric population as well as whether the results met the information required to draw conclusions. Objective: To evaluate the safety and efficacy evaluation of dexmedetomidine for procedural sedation and postoperative behaviors in a pediatric population. Methods: PubMed, Cochrane library, Web of Science and Ovid MEDLINE were searched to obtain randomized controlled trials (RCTs) comparing dexmedetomidine with control medicine and comparing different doses of dexmedetomidine. Results: There were a total of 16 RCTs for a total of 3240 patients. Dexmedetomidine slowed down the heart rate (HR; mean difference: −13.27; 95% CI: −16.41 to 10.14; P < 0.001) and reduced postoperative delirium (risk ratio [RR]: 0.31; 95% CI: 0.20-0.50; P < 0.001), the number of pain patients (RR: 0.48; 95% CI: 0.30-0.75; P = 0.002), and desaturation (RR: 0.34; 95% CI: 0.13-0.89; P = 0.03) compared with the control group. The limitation was that it was difficult to determine the range of low- and high-dose dexmedetomidine. Conclusion and Relevance: Dexmedetomidine slowed down intraoperative HR within the normal range, which might reduce myocardial oxygen consumption. It reduced postoperative pain and postoperative complications: delirium and desaturation. Dexmedetomidine showed no dose-dependent increase in the procedural sedation time of pediatric patients. Clinically, dexmedetomidine can improve pediatric procedural sedation and postoperative behavior, and it can be considered as a related medicine for safety in pediatric surgery.