Dataset Information

Effects of intravenous dexmedetomidine on emergence agitation in children under sevoflurane anesthesia: a meta-analysis of randomized controlled trials.

ABSTRACT:

Objective

Emergence agitation (EA) is a common complication in children under sevoflurane anesthesia. The aim of this meta-analysis was to evaluate the effects of intravenous dexmedetomidine on EA in children under sevoflurane anesthesia.

Methods

A comprehensive literature search was conducted to identify clinical trials that evaluated the effects of intravenous dexmedetomidine and placebo on EA in children under sevoflurane anesthesia. The search collected trials from MEDLINE, Cochrane Central Register of Controlled Trials (CENTRAL), Embase, and Web of Science. Analysis was conducted using STATA version 12.0. Data from each trial were pooled using relative ratio (RR) for dichotomous data or weighted mean difference (WMD) for continuous data and corresponding 95% confidence interval (95% CI). Heterogeneity assessment, sensitivity analysis, and publication bias were performed.

Results

Twelve trials, in which 459 patients received dexmedetomidine and 353 patients received placebo, were included in this analysis. We found that intravenous dexmedetomidine decreased the incidences of EA (RR = 0.346, 95% CI 0.263 to 0.453, P<0.001), and postoperative pain (RR = 0.405, 95% CI 0.253 to 0.649, P<0.001). Intravenous dexmedetomidine also prolonged extubation time (WMD = 0.617, 95% CI 0.276 to 958, P<0.001), and emergence time (WMD = 0.997, 95% CI 0.392 to 1.561, P = 0.001). Further evidences are required to evaluate the incidence of postoperative nausea and vomiting (PONV). Sensitivity analysis strengthened evidences for lower incidences of EA, pain, and prolonged extubation time, and emergence time. Funnel plots did not detect any significant publication bias.

Conclusion

Meta-analysis demonstrated that dexmedetomidine decreased the incidence of EA in children under sevoflurane anesthesia.

SUBMITTER: Zhang C

PROVIDER: S-EPMC4059696 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Publications

Effects of intravenous dexmedetomidine on emergence agitation in children under sevoflurane anesthesia: a meta-analysis of randomized controlled trials.

Zhang Chengliang C Hu Jiajia J Liu Xinyao X Yan Jianqin J

PloS one 20140616 6

<h4>Objective</h4>Emergence agitation (EA) is a common complication in children under sevoflurane anesthesia. The aim of this meta-analysis was to evaluate the effects of intravenous dexmedetomidine on EA in children under sevoflurane anesthesia.<h4>Methods</h4>A comprehensive literature search was conducted to identify clinical trials that evaluated the effects of intravenous dexmedetomidine and placebo on EA in children under sevoflurane anesthesia. The search collected trials from MEDLINE, Co ...[more]

PMID: 24932765

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Project description:The objective of this article is to evaluate the effect of dexmedetomidine on emergence agitation (EA) and recovery profiles in children after sevoflurane anesthesia and its pharmacological mechanisms. Standard bibliographic databases, including MEDLINE, EMBASE, PsycINFP, Springer and ISI Web of Knowledge, were artificially searched to identify all randomized controlled trials (RCTs) comparing the impact of dexmedetomidine with placebo, fentanyl and midazolam on EA and recovery profiles after sevoflurane anesthesia in post-anesthesia care unit (PACU). Two authors assessed the quality of each study independently in accordance with strict inclusion criteria and extracted data. RevMan 5.0 software was applied for performing statistic analysis. The outcomes analyzed included: 1) incidence of EA, 2) emergence time, 3) time to extubation, 4) incidence of post-operation nausea and vomiting, 5) number of patients requiring an analgesic, and 6) time to discharge from PACU. A total of 1364 patients (696 in the dexmedetomidine group and 668 in the placebo, fentanyl and midazolam group) from 20 prospective RCTs were included in the meta-analysis. Compared with placebo, dexmedetomidine decreased the incidence of EA (risk ratio [RR] 0.37; 95% CI 0.30 to 0.46), incidence of nausea and vomiting (RR 0.57; 95% CI 0.38 to 0.85) and number of patients requiring an analgesic (RR 0.43; 95% CI 0.31 to 0.59). However, dexmedetomidine had a significantly delayed effect on the emergence time (weighted mean differences [WMD] 1.16; 95% CI 0.72 to 1.60), time to extubation (WMD 0.61; 95% CI 0.27 to 0.95), and time to discharge from recovery room (WMD 2.67; 95% CI 0.95 to 4.39). Compared with fentanyl (RR 1.39; 95% CI 0.78 to 2.48) and midazolam (RR 1.12; 95% CI 0.54 to 2.35), dexmedetomidine has no significantly difference on the incidence of EA. However, the analgesia effect of dexmedetomidine on postoperation pain has no significantly statistical differences compared with fentanyl (RR 1.12; 95% CI 0.66 to 1.91), which implied that its analgesia effect might play an important role in decreasing the incident of EA. No evidence of publication bias was observed.

Project description:Background: Emergence agitation (EA) is one of the most common and intractable postoperative complications among children undergoing surgery under general anesthesia. Dexmedetomidine, an α(2)-adrenoceptor agonist, offers an ideal sedation, reduces preoperative anxiety, and facilitates smooth induction of anesthesia, and it is widely used in pediatric surgery. We aimed to evaluate the efficacy of dexmedetomidine for preventing emergence agitation in children after general anesthesia. Methods: We comprehensively reviewed PubMed, Cochrane Library, EMBASE, and Web of Science databases to search all randomized controlled trials, published before April 22, 2020, investigating the efficacy of dexmedetomidine in preventing the emergence agitation in children after general anesthesia. The meta-analysis was performed using Review Manager 5.3. The primary outcome was the incidence of emergence agitation. Secondary outcomes included the number of patients requiring rescue analgesic, number of patients with postoperative nausea and vomiting, emergence time, extubation time, and time to discharge from the post-anesthesia care unit. Results: We included a total of 33 studies, comprising 2,549 patients in this meta-analysis. Compared with saline, dexmedetomidine significantly reduced the emergence agitation incidence [risk ratio (RR) 0.29; 95% confidence interval (CI) 0.22-0.37; p < 0.00001], incidence of postoperative nausea and vomiting (RR 0.46; 95% CI 0.3-0.69; p = 0.0002), and the requirement of rescue analgesic (RR 0.29; 95% CI 0.18-0.44; p < 0.00001). Furthermore, children in the dexmedetomidine group experienced a longer emergence time [mean difference (MD) 2.18; 95% CI 0.81-3.56; p = 0.002] and extubation time (MD 0.77; 95% CI 0.22-1.31; p = 0.006) compared with those in the saline group. However, no significant difference was observed in the time to discharge from the post-anesthesia care unit (MD 2.22; 95% CI -2.29-6.74; p = 0.33) between the two groups. No significant differences were observed between the effects of dexmedetomidine and other drugs like midazolam, propofol, fentanyl, tramadol, and clonidine in terms of the emergence agitation incidence and other parameters, except for the requirement of rescue analgesic (RR 0.45; 95% CI 0.33-0.61; p < 0.00001). Conclusions: Dexmedetomidine can prevent emergence agitation, relieves postoperative pain, decreases the requirement of rescue analgesic, and decreases the postoperative nausea and vomiting events.

Project description:BackgroundThe incidence of restlessness in the wake-up period of sevoflurane inhalation anesthesia is high. Although many studies have explored the relationship between dexmedetomidine and restlessness in the wake-up period of sevoflurane anesthesia in children, they can't keep consistent conclusions and lack evidence-based medical evidence. Meta-analysis was conducted to explore the efficacy and safety of dexmedetomidine in the treatment of restlessness during the recovery period of sevoflurane anesthesia in children, and to provide reference for clinic.MethodsRelevant articles were retrieved from PubMed, Embase, MEDLINE, Science Direct, The Cochrane Library, the Chinese National Knowledge Infrastructure (CNKI), Wanfang Database, the Chinese Science and Technology Periodical Database, and the Chinese BioMedical Literature Database (CBM). The Chinese and English search keywords included "dexmedetomidine", "children", "sevoflurane", and "emergence agitation". The articles included were independently evaluated and cross-checked by 2 professionals in strict accordance with the 5 evaluation criteria for randomized controlled trials (RCTs) in the Cochrane Handbook for Systematic Reviews of Interventions (version 5.0.1).ResultsA total of 16 articles were included in this meta-analysis. Of the 16 RCTs, 14 described the generation of random sequences in detail, 8 described allocation concealment in detail, no patient blinding was described due to different surgical methods, 8 articles used operator blinding, and all 16 articles had complete outcome measures. The incidence of emergence agitation in the 0.5 µg/kg dexmedetomidine group was significantly lower than that in the control group, and the difference was statistically significant [odds ratio (OR) =0.22, 95% CI: 0.13, 0.40, P<0.00001]. The incidence of analgesic rescue in the experimental group was significantly lower than that in the control group, and the difference was statistically significant (OR =0.29, 95% CI: 0.13, 0.63, Z =3.13, P=0.002). The incidence of postoperative nausea and vomiting in the experimental group was significantly lower than that in the control group, and the difference was statistically significant (OR =0.33, 95% CI: 0.20, 0.55, Z =4.29, P<0.0001).DiscussionThe results of this meta-analysis confirmed that dexmedetomidine could reduce the incidence of emergence agitation, postoperative analgesic rescue, and nausea and vomiting in children after sevoflurane anesthesia.

Project description:The aim of the present study was to observe whether dexmedetomidine (DEX) combined with sufentanil decreased emergence agitation (EA) in children receiving sevoflurane anesthesia for cleft palate repair surgery. Children undergoing elective cleft palate repair surgery were randomly allocated into the DEX + sufentanil group (group DS; n=50) and the normal saline + fentanyl group (group SF; n=50). Patients in group DS were treated with 0.5 µg/kg DEX prior to induction of anesthesia, whereas patients in group SF received an equal volume of normal saline. Sufentanil (0.2 µg/kg) was administered to induce anesthesia, and 30 min before the end of surgery for patients in group DS. Fentanyl (2 µg/kg) was administered at the same time point for patients in group SF. Mean arterial pressure (MAP), heart rate (HR), duration of surgery and anesthesia, and the dosage of remifentanil were assessed. EA score, Pediatric Anesthesia Emergence Delirium (PAED) score and the Children and Infants Postoperative Pain Scale (CHIPPS) score were documented every 15 min in the post-anesthesia care unit (PACU). The number of cases requiring fentanyl (1 µg/kg) and the recovery profile data were analyzed. Compared with group DS (P<0.05) and the baseline (P<0.05), HR and MAP were significantly increased in group SF immediately following tracheal intubation and extubation. Mean values of maximum EA, PAED and CHIPPS scores were significantly reduced in group DS compared with group SF at 0 (P<0.01), 15 (P<0.05), and 30 min (P<0.05) after arrival at PACU. The incidence of EA in group SF was significantly increased compared with group DS (P<0.05). The dosage of remifentanil during the surgery and the number of cases requiring fentanyl (1 µg/kg) in group DS were significantly decreased compared with group SF (P<0.05). The findings of the present study suggested that DEX combined with sufentanil was able to effectively decrease the incidence of EA in children receiving sevoflurane anesthesia for cleft palate repair surgery.

Project description:Children with cerebral palsy can demonstrate irritability following emergence from general anaesthesia. As well, an elevated rate of emergence delirium (ED) in children has been associated with the application of sevoflurane. The current study's intent is to administer dexmedetomidine, in a single dosage administration, at the initial phase of sevoflurane based anesthesia with regard to the occurrence and severity of ED in children afflicted with cerebral palsy. Participating in the study (American Society of Anesthesiologists I-II) are eighty children ranging in ages two through twelve years. They would be anaesthetised with sevoflurane based anesthesia while undergoing lower limb surgical procedures. The participants were equally distributed to either Group c or Group D. Group C was administered 10 ml saline 0.9%, and Group D was administered dexmedetomidine 0.5 μg•kg(-1). Five minutes prior to commencement of the surgical procedures, the participants received the prescribed pharmaceutical dosages under the anesthesia of sevoflurane. In order to sustain the BIS values in a range of 45 and 55, at 60 second increments, endtidal sevoflurane concentrations (ETsev) were modified. After conclusion of the surgical procedures, in post anesthesia care unit (PACU), the frequency of ED was gauged with Aonos four point scale and the severity of ED was gauged with pediatric anesthesia emergence delirium scale upon admission (T0), after intervals of five minutes (T5), fifteen minutes (T15) and thirty minutes (T30). Extubation time, emergence time and length of at stay at the PACU were assessed. Relative to Group C, participants of Group D exhibited noticeably shortened times of emergence, extubation and PACU duration of stay. Prior to surgical incision, ETsev was elevated in the control group, (1.9±0.2 vs 1.6±0.3; P = 0.023) and amid the initial 20 minutes following the surgical incision (1.6±0.2 vs 1.1±0.2; P = 0.016). At intervals of commencement, T0, of five minutes (T5) and fifteen minutes T15, Group D exhibited lower occurrences and severity of ED than those participants in Group C. Dexmedetomidine, given as a bolus dose post induction, was effective in reducing the occurrence and severity of emergence delirium in children with cerebral palsy who were undergoing lower limb surgical procedures under sevoflurane anaesthesia.

Project description:BackgroundThe differences in the incidence and severity of emergence agitation (EA) and emergence times between desflurane and sevoflurane anesthesia have not been as clearly elucidated in children as in adults.MethodsThe design of the study is a systematic review with meta-analysis of randomized controlled trials. The study methodology is based on the Cochrane Review Methods. A comprehensive literature search was conducted to identify clinical trials comparing the incidence or severity of EA and emergence times in children anesthetized with desflurane or sevoflurane. Two reviewers independently assessed each study according to predefined inclusion criteria and extracted data from each study using a prespecified data extraction form. The data from each study were combined using a fixed effect or random effect model to calculate the pooled risk ratio (RR) or standardized mean difference (SMD) and 95% confidence interval (CI). Funnel plots were used to assess publication bias. Subgroup and sensitivity analyses were performed.ResultsFourteen studies met the inclusion criteria. Among the 1196 patients in these 14 studies, 588 received desflurane anesthesia and 608 received sevoflurane anesthesia. The incidence of EA was comparable between the 2 groups (pooled RR = 1.21; 95% CI: 0.96-1.53; I = 26%), and so was the severity of EA (EA score) between the 2 groups (SMD = 0.12; 95% CI: -0.02 to 0.27; I = 0%). Extubation and awakening times were shorter in the desflurane group than in the sevoflurane group; the weighted mean differences were -2.21 (95% CI: -3.62 to -0.81; I = 93%) and -2.74 (95% CI: -3.80 to -1.69; I = 85%), respectively. No publication bias was found in the funnel plot. The subgroup analysis based on the type of EA scale showed a higher incidence of EA in the desflurane group than in the sevoflurane group in studies using 3-, 4-, or 5-point EA scales; the pooled RR was 1.38 (95% CI: 1.10-1.73; I = 37%).ConclusionThe incidence and severity of EA were comparable between desflurane and sevoflurane anesthesia in children; however, emergence times, including extubation and awakening times, were shorter in desflurane anesthesia.

Dataset Information

Effects of intravenous dexmedetomidine on emergence agitation in children under sevoflurane anesthesia: a meta-analysis of randomized controlled trials.

Objective

Methods

Results

Conclusion

Publications

Effects of intravenous dexmedetomidine on emergence agitation in children under sevoflurane anesthesia: a meta-analysis of randomized controlled trials.

Similar Datasets

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