Ketofol performance to reduce postoperative emergence agitation in children undergoing adenotonsillectomy

Effects of prophylactic nalbuphine on emergence agitation and postoperative pain in pediatric patients undergoing ENT surgery with sevoflurane anesthesia

Background

Emergence agitation (EA) is a common complication in the pediatric population. This study aimed to investigate the effect of the prophylactic nalbuphine on EA in pediatric patients receiving sevoflurane anesthesia.

Methods

The children undergoing ear, nose, and throat (ENT) surgery were administered 0.2 mg/kg nalbuphine (the nalbuphine group) or the same volume of normal saline (the control group) 5 min before the end of the surgery. The extubating time, time to eye-opening and duration of the post-anesthesia care unit (PACU) were recorded. Heart rate and blood pressure were monitored before and 5 min after nalbuphine administration. Pain was assessed using Face Legs Activity Cry and Consolability (FLACC) scales, and the drug-related postoperative complications (e.g., EA, delayed awakening, nausea and vomiting, and respiratory depression) were recorded.

Results

One-hundred and thirty pediatric patients were randomly divided into nalbuphine and control groups (n = 65). The nalbuphine group showed a significantly lower incidence of EA than the control group (20% vs. 46.2%, P = 0.002). No significant differences between the two groups were observed in heart rate and blood pressure 5 min after nalbuphine administration (P > 0.05). No significant differences were observed between the two groups regarding extubating time, time to eye-opening, and duration of PACU. The FLACC scales demonstrated lower values in the nalbuphine group than in the control group during the initial 4 h after the surgery. However, the FLACC scales showed similar values between 5 and 12 h after the surgery.

Conclusions

In summary, the results of this study demonstrated that prophylactic natbuphine could minimize the incidence of EA in pediatric patients following ENT surgery without increasing the extubating time and PACU duration.

Clinical Trial Registration

http://www.chictr.org.cn, identifier [ChiCTR2300070046].

Impact of Sevoflurane and Propofol on Perioperative Respiratory Adverse Events in Pediatrics: A Systematic Review and Meta-analysis

PURPOSE

Perioperative respiratory adverse events continue to pose significant challenges in pediatric anesthesia. Research has hinted at a lower incidence of these complications in children anesthetized with propofol than sevoflurane. This study aimed to assess and compare respiratory complications in children undergoing general anesthesia with either sevoflurane or propofol during surgery.

DESIGN

Systematic review and meta-analysis.

METHODS

We conducted comprehensive searches of the PubMed, Embase, and Cochrane Library databases and manual searches to identify pertinent randomized controlled trials (RCTs) published up to August 19, 2023. The Cochrane risk assessment tool was employed to evaluate the risk of bias in the selected studies. The pooled analysis of relevant data compared respiratory complications, vomiting, agitation, anesthesia duration, extubation time, and recovery time in pediatric patients undergoing anesthesia with sevoflurane and propofol.

FINDINGS

A total of 17 RCTs, containing 1,758 pediatric participants, were included and analyzed. Respiratory adverse events were examined, encompassing laryngospasm, apnea, cough, and SpO2. In comparison to sevoflurane, children subjected to propofol anesthesia demonstrated a significant reduction in the risk of laryngospasm (P = .001), vomiting (P < .001), and agitation (P = .029). Especially in patients receiving laryngeal mask airway, propofol anesthesia significantly reduced the incidence of laryngospasm (P = .003) and agitation (P < .001). At the same time, they exhibited an increased risk of apnea (P = .039). Notably, no statistically significant disparities were observed between sevoflurane and propofol concerning cough, SpO2 < 95%, anesthesia time, extubation time, and recovery time. Administration of propofol following sevoflurane anesthesia did not significantly impact the occurrence of vomiting or the recovery time.

CONCLUSIONS

While propofol presents an elevated risk of apnea, it concurrently yields a significant reduction in laryngospasm, vomiting, and agitation. Consequently, propofol emerges as a favorable anesthetic option for pediatric patients.

Electroencephalographic insights into the pathophysiological mechanisms of emergence delirium in children and corresponding clinical treatment strategies

Emergence delirium is a common postoperative complication in patients undergoing general anesthesia, especially in children. In severe cases, it can cause unnecessary self-harm, affect postoperative recovery, lead to parental dissatisfaction, and increase medical costs. With the widespread use of inhalation anesthetic drugs (such as sevoflurane and desflurane), the incidence of emergence delirium in children is gradually increasing; however, its pathogenesis in children is complex and unclear. Several studies have shown that age, pain, and anesthetic drugs are strongly associated with the occurrence of emergence delirium. Alterations in central neurophysiology are essential intermediate processes in the development of emergence delirium. Compared to adults, the pediatric nervous system is not fully developed; therefore, the pediatric electroencephalogram may vary slightly by age. Moreover, pain and anesthetic drugs can cause changes in the excitability of the central nervous system, resulting in electroencephalographic changes. In this paper, we review the pathogenesis of and prevention strategies for emergence delirium in children from the perspective of brain electrophysiology-especially for commonly used pharmacological treatments-to provide the basis for understanding the development of emergence delirium as well as its prevention and treatment, and to suggest future research direction.

The Effect of Different Propofol-Ketamine Combinations on Emergence Delirium in Children Undergoing Adenoidectomy and Tonsillectomy Surgery

PURPOSE

Emergence delirium (ED) after sevoflurane anesthesia remains a serious issue in children. We aimed to compare different ratios of propofol-ketamine combinations to determine a better option for preventing ED.

DESIGN

A prospective, randomized clinical trial.

METHODS

In this study, 112 children aged between 3 and 12 years who underwent adenoidectomy and tonsillectomy were recruited. Propofol 1 mg kg-1 + ketamine 1 mg kg-1 (1:1 ratio), propofol 1.5 mg kg-1 + ketamine 0.75 mg kg-1 (2:1 ratio), propofol 2 mg kg-1 + ketamine 0.66 mg kg-1 (3:1 ratio), and propofol 3 mg kg-1 were applied at induction of anesthesia for Groups I, II, III, and IV, respectively. Fentanyl 1 mcg kg-1 and rocuronium 0.6 mg kg-1 were applied at induction, and anesthesia was maintained with sevoflurane and O2/N2O mixture for all participants. Intravenous morphine 0.1 mg kg-1 was applied for postoperative analgesia in the last 10 minutes of surgery. ED was defined as a Watcha score of ≥3. Demographics, hemodynamics, extubation time, Watcha scores, the Face, Legs, Activity, Cry, and Consolability scores, length of stay in the postanesthesia care unit (PACU), rescue analgesic requirement, and postoperative complications were recorded.

FINDINGS

ED was significantly higher at 10 and 20 minutes in Group IV. Eighteen children experienced ED in PACU, (3, 2, 2, and 11 children in Groups I, II, III, and IV, respectively). Face, Legs, Activity, Cry, and Consolability scores were significantly different at all times. Rescue analgesics were required by 3 children (10.7%) in Group I, 2 (7.1%) in Group II, 2 (7.1%) in Group III, and 10 (35.7%) in Group IV (P = .012). The PACU stay was 21.9 ± 6.4 in Group I, 18.7 ± 6.3 in Group II, 16.7 ± 5.8 in Group III, and 17.4 ± 5.8 in Group IV. Nystagmus was observed in three children in Group I.

CONCLUSIONS

To addition of ketamine to propofol during the induction of sevoflurane anesthesia can reduce the ED and analgesic requirements in children. A propofol-to-ketamine ratio of 3:1 provided better postoperative recovery with less pain and ED, without prolonging the PACU length of stay.

Comparison of the Effect of Ketamine, Ketamine-Midazolam and Ketamine-Propofol on Post-Tonsillectomy Agitation in Children

Background

Emergence agitation (EA) in children is one of the most common complications following anaesthesia. We aimed to compare the effect of ketamine, ketamine-midazolam and ketamine-propofol on EA after tonsillectomy.

Methods

This study was a randomised, double-blind clinical trial conducted on 162 children undergoing adenotonsillectomy surgery. The participants were randomly divided into three groups of receiving ketamine (0.5 mg/kg) (N = 54), ketamine (0.5 mg/kg) + propofol (1 mg/kg) (N = 54) and ketamine (0.5 mg/kg) + midazolam (0.01 mg/kg) (N = 54) 10 min before the end of the operation. At the time of the patients’ entry into the post-anaesthesia care unit (PACU) and at intervals of 5 min, 10 min and 20 min after that, consciousness, mobility, breathing, circulation and SpO₂ were recorded. Modified Aldrete recovery score (MARS), the objective pain score (OPS) and Richmond agitation-sedation scale (RASS) were also evaluated.

Results

At the time of entrance to the PACU and 5 min later, the ketamine-midazolam and ketamine-propofol groups had lower RASS scores than the ketamine group (P < 0.001); after 10 min and 20 min, the ketamine-propofol group showed the lowest RASS score (P < 0.001). Ketamine-propofol group had a significantly lower MARS score at all-time points (P < 0.001). Recovery time was the longest for the ketamine-propofol group (P = 0.008).

Conclusion

The ketamine-midazolam group had lower RASS, greater haemodynamic stability and MARS values without delayed awakening.

Intranasal Dexmedetomidine Accompanied by Cartoon Video Preoperation for Reducing Emergence Delirium in Children Undergoing Strabismus Surgery: A Prospective Randomized Trial

Background: After general anesthesia, many pediatric patients present with emergence delirium (ED). The aim of this study was to determine whether dexmedetomidine intranasal premedication accompanied by a cartoon video 30 min before general anesthesia would have an effect on reducing emergence delirium in preschool children.

Methods: One hundred and forty children aged 3–6 year undergoing elective strabismus surgery were randomly to be premedicated with 2 μg kg⁻¹ intranasal dexmedetomidine accompanied by the viewing of a cartoon video (Group DV) or without any premedication as usual (Group C). The primary outcome was the incidence of emergence delirium at the postanesthesia care unit (PACU), evaluated by the Pediatric Anesthesia Emergence Delirium (PAED) scale. The secondary outcomes included: the Modified Yale Preoperative Anxiety Scale (mYPAS) upon separation from parents; the Induction Compliance Checklist score (ICC); the PACU discharge time; the parental satisfaction score; the incidences of the side effects and the Post-Hospital Behavior Questionnaire (PHBQ) score during the first day after surgery.

Results: The incidence of emergence agitation (PAED score ≥ 10) was reduced in Group DV compared with Group C [8 (11.4%) vs. 24 (34.3%); P = 0.001]. None of the patients in the DV group experienced severe emergence agitation (PAED score ≥ 15), as compared with the C group (P = 0.006). The mYPAS score upon separation from parents (P < 0.001) and the incidence of poor coordination (ICC ≥ 4) during induction (P < 0.001) were significantly lower in Group DV than in Group C. In Group DV, the PACU discharge time was longer (P < 0.001), and the parental satisfaction score was higher (P < 0.001). However, during the first day after surgery, the PHBQ score was lower in Group DV compared with Group C (P = 0.001).

Conclusions: Premedication with 2 μg kg⁻¹ intranasal dexmedetomidine accompanied by cartoon video viewing can dramatically reduce emergence delirium in preschool children undergoing strabismus surgery, relieve preoperative anxiety and improve the parental satisfaction and the postoperative behavior changes during the first day after surgery.

Clinical Trial Registration: ChiCTR2000030678.