Dataset Information

Effects of dexmedetomidine in non-operating room anesthesia in adults: a systematic review with meta-analysis.

ABSTRACT:

Background

Dexmedetomidine (DEX) is an α2-adrenergic receptor agonist used for its sedative, analgesic, and anxiolytic effects. Non-Operating Room Anesthesia (NORA) is a modality of anesthesia that can be done under general anesthesia or procedural sedation or/and analgesia. In this particular setting, a level-2 sedation, such as the one provided by DEX, is beneficial. We aimed to study the effects and safety of DEX in the different NORA settings in the adult population.

Methods

A systematic review with meta-analysis of randomized controlled trials was conducted. Interventions using DEX only or DEX associated with other sedative agents, in adults (18 years old or more), were included. Procedures outside the NORA setting and/or without a control group without DEX were excluded. MEDLINE, ClinicalTrials.gov, Scopus, LILACS, and SciELO were searched. The primary outcome was time until full recovery. Secondary outcomes included hemodynamic and respiratory complications and other adverse events, among others.

Results

A total of 97 studies were included with a total of 6,706 participants. The meta-analysis demonstrated that DEX had a higher time until full recovery (95% CI = [0.34, 3.13] minutes, a higher incidence of hypotension (OR = 1.95 [1.25, 3.05], p = 0.003, I² = 39%) and bradycardia (OR = 3.60 [2.29, 5.67], p < 0.00001, I² = 0%), and a lower incidence of desaturation (OR = 0.40 [0.25, 0.66], p = 0.0003, I² = 60%).

Conclusion

DEX in NORA procedures in adults was associated with a lower incidence of amnesia and respiratory effects but had a long time to recovery and more hemodynamic complications.

SUBMITTER: Fonseca FJ

PROVIDER: S-EPMC10533981 | biostudies-literature | 2023 Sep-Oct

REPOSITORIES: biostudies-literature

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Publications

Effects of dexmedetomidine in non-operating room anesthesia in adults: a systematic review with meta-analysis.

Fonseca Francisca Jerónimo FJ Ferreira Leonardo L Rouxinol-Dias Ana Lídia AL Mourão Joana J

Brazilian journal of anesthesiology (Elsevier) 20211220 5

<h4>Background</h4>Dexmedetomidine (DEX) is an α2-adrenergic receptor agonist used for its sedative, analgesic, and anxiolytic effects. Non-Operating Room Anesthesia (NORA) is a modality of anesthesia that can be done under general anesthesia or procedural sedation or/and analgesia. In this particular setting, a level-2 sedation, such as the one provided by DEX, is beneficial. We aimed to study the effects and safety of DEX in the different NORA settings in the adult population.<h4>Methods</h4>A ...[more]

PMID: 34933035

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Project description:Background/objectiveThe act of surgery involves harming vulnerable patients with the intent that the results will improve their health and, ultimately, help the patients. Such activities will inevitably entail moral decisions, yet the ethics of surgery has only recently developed as a field of medical ethics. Within this field, it is striking how few accounts there are of actions within the operating room. The aim of this systematic review was to investigate how much of the scientific publications on surgical ethics focus on what take place inside the operating room and to explore the ethical issues included in the publications that focus on medical ethics in the operating room.MethodsWe conducted a systematic search of the Medline and Embase databases using a PICO model and the search terms "surgery", "ethics" and "operating room". Papers were included if they focused on doctors, entailed activities inside the operating room and contained some ethical analysis. Thematic synthesis was used for data extraction and analysis.FindingsFewer than 2% of the scientific publications on surgical ethics included activities inside the operating room. A total of 108 studies were included in the full-text analysis and reported according to the RESERVE guidelines. Eight content areas covered 2/3 of the included papers: DNR orders in the OR, overlapping surgery, donation of organs, broadcasting live surgery, video recordings in the OR, communication/teamwork, implementing new surgical technology, and denying blood to Jehovah's Witness.Discussion/conclusionsThis systematic review indicates that only a small fraction of scientific publications on the ethics of surgery focus on issues inside the operating room, accentuating the need for further research to close this gap. The ethical issues that repeatedly arose in the included papers included the meaning of patient autonomy inside the operating room, the consequences of technological advances in surgery, the balancing of legitimate interests, the dehumanising potential of the OR, and the strong notion of surgeon responsibility.

Project description:This meta-analysis aimed to analyze and compare the efficacy and safety of remifentanil and dexmedetomidine applied respectively for controlled hypotension under general anesthesia. We searched the Cochrane Library, PubMed, EMBASE, Web of Science, CNKI, SinoMed, Wanfang, and VIP databases, as well as dissertations and conference papers, to obtain randomized controlled trials comparing remifentanil and dexmedetomidine applied respectively for controlled hypotension before August 23, 2021. The primary outcomes included hemodynamic profiles, surgical field score, and blood loss. Extubation time, sedation and pain score at the PACU, and perioperative adverse events were the secondary outcomes. Nine randomized controlled trials with 543 patients (272 in the dexmedetomidine group and 271 in the remifentanil group) were eventually included. This meta-analysis indicated no significant difference between dexmedetomidine and remifentanil in terms of surgical field score, blood loss, minimum values of mean arterial pressure (MD 0.24 with 95% CI [-1.65, 2.13], P = 0.80, I2 = 66%) and heart rate (MD 0.42 [-1.33, 2.17], P = 0.64, I2 = 40%), sedation scores at the PACU (MD -0.09 [-0.69, 0.50], P = 0.76, I2 = 92%), and incidence of bradycardia (OR 2.24 [0.70, 7.15], P = 0.17, I2 = 0%). Compared with remifentanil, dexmedetomidine as the controlled hypotensive agent showed a lower visual analogue score at the PACU (MD -1.01 [-1.25, -0.77], P<0.00001, I2 = 0%) and incidence of shivering (OR 0.22 [0.08, 0.60], P = 0.003, I2 = 0%), nausea, and vomiting (OR 0.34 [0.13, 0.89], P = 0.03, I2 = 0%). However, extubation time was shorter in the remifentanil group (MD 3.34 [0.75, 5.93], P = 0.01, I2 = 90%). In conclusion, dexmedetomidine and remifentanil are both effective in providing satisfactory controlled hypotension and surgical conditions. Dexmedetomidine is better in easing postoperative pain at the PACU and reducing the occurrence of shivering, nausea, and vomiting. Meanwhile, remifentanil is a fast-track anesthesia with a shorter extubation time. Given the limitations of this meta-analysis, further studies are needed for a more definitive comparison of the efficacy and safety of dexmedetomidine and remifentanil.

Project description:ObjectiveDexmedetomidine is a medication that has analgesic, sedative, and anti-anxiety properties. In the clinical, it is often used to prevent common complications associated with strabismus surgery, including postoperative delirium, postoperative nausea and vomiting, postoperative pain, and oculocardiac reflex. However, its effectiveness and side effects of the present studies are different. The sample sizes of the present studies on the prevention of complications of dexmedetomidine are small. Therefore, this study evaluates the efficacy of dexmedetomidine in preventing anesthesia-related complications in strabismus surgery through a systematic review and meta-analysis.MethodsLiterature was retrieved from 10 commonly used databases and randomized controlled trials published up to May 2022 were sought. The included studies compared the intervention effects of dexmedetomidine versus placebo on anesthesia-related complications in surgery. The occurrence rates of postoperative delirium, postoperative nausea and vomiting, postoperative pain, and oculocardiac reflex in patients undergoing strabismus surgery were evaluated. Statistical analyses and forest plots were generated using Review Manager and STATA software. Binary outcomes were measured using relative risk (RR) with a 95% confidence interval for each outcome. The Cochrane risk of bias tool was used to assess the bias and risk in the studies that met the inclusion criteria.ResultsA total of 13 articles were ultimately included in the analysis, comprising 1,018 patients who underwent strabismus surgery. The dexmedetomidine group, compared to the placebo group, demonstrated significant reductions in the incidence of postoperative delirium (RR = 0.73, P = 0.001), severe postoperative delirium (RR = 0.45, P = 0.005), postoperative nausea and vomiting (RR = 0.48, P < 0.0001), and the need for supplemental analgesia postoperatively (RR = 0.60, P = 0.004). Additionally, subgroup analysis revealed that intravenous administration of dexmedetomidine significantly reduced the incidence of oculocardiac reflex (RR = 0.50, P = 0.001). In contrast, intranasal administration of dexmedetomidine did not have a significant effect on the incidence of oculocardiac reflex (RR = 1.22, P = 0.15). There was a significant difference between the subgroups (P = 0.0005, I2 = 91.7%).ConclusionAmong patients undergoing strabismus surgery, the use of dexmedetomidine can alleviate postoperative delirium and reduce the incidence of postoperative nausea and vomiting, as well as postoperative pain. Moreover, intravenous administration of dexmedetomidine can lower the occurrence rate of the oculocardiac reflex.

Project description:BACKGROUND:Advancements in virtual reality (VR) technology have resulted in its expansion into health care. Preliminary studies have found VR to be effective as an adjunct to anesthesia to reduce pain and anxiety for patients during upper gastrointestinal endoscopies, dental procedures and joint arthroplasties. Current standard care practice for upper extremity surgery includes a combination of regional anesthesia and intraoperative propofol sedation. Commonly, patients receive deep propofol sedation during these cases, leading to potentially avoidable risks of over-sedation, hypotension, upper airway obstruction, and apnea. The objective of this study is to evaluate the effectiveness of VR technology to promote relaxation for patients undergoing upper extremity surgery, thereby reducing intraoperative anesthetic requirements and improving the perioperative patient experience. METHODS:In this single-center, randomized controlled trial, 40 adult patients undergoing upper extremity orthopedic surgery will be randomly allocated to either intraoperative VR immersion or usual care. VR immersion is designed to provide patients with a relaxing virtual environment to alleviate intraoperative anxiety. All patients receive a peripheral nerve block prior to surgery. Patients in the intervention group will select videos or immersive environments which will be played in the VR headset during surgery. An anesthesia provider will perform their usual clinical responsibilities intraoperatively and can administer anesthetic medications if and when clinically necessary. Patients in the control arm will undergo perioperative anesthesia according to standard care practice. The primary outcome is the difference in intraoperative propofol dose between the groups. Secondary outcomes include postoperative analgesia requirements and pain scores, length of stay in the postanesthesia care unit, overall patient satisfaction and postoperative functional outcomes. DISCUSSION:It is unknown whether the use of VR during upper extremity surgery can reduce intraoperative anesthetic requirements, reduce perioperative complications, or improve the postoperative patient experience. A positive result from this clinical trial would add to the growing body of evidence that demonstrates the effectiveness of VR as an adjunct to anesthesia in reducing intraoperative pain and anxiety for multiple types of procedure. This could lead to a change in practice, with the introduction of a nonpharmacologic intervention potentially reducing the burden of over-sedation while still providing a satisfactory perioperative experience. TRIAL REGISTRATION:ClinicalTrials.gov, NCT03614325. Registered on 9 July 2018.

Dataset Information

Effects of dexmedetomidine in non-operating room anesthesia in adults: a systematic review with meta-analysis.

Background

Methods

Results

Conclusion

Publications

Effects of dexmedetomidine in non-operating room anesthesia in adults: a systematic review with meta-analysis.

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