Effect of Different Drugs on Emergency Delirium in Preschool Age Patient
Effect of Dexmedetomidine, Ketamine or Midazolam on the Incidence and Severity of Emergence Delirium in Preschool-Aged Children Following Squint Surgeries Under Sevoflurane Anesthesia
1 other identifier
interventional
92
0 countries
N/A
Brief Summary
Emergence delirium (ED) was first described by Eckenhoff and colleagues in the 1960s and is defined in pediatric anesthesia as 'dissociated state of consciousness in which child is irritable, uncompromising, uncooperative, incoherent, and inconsolably crying, moaning, and kicking or thrashing. The commonly reported incidence of postoperative ED in pediatric patients especially with the use of sevoflurane or desflurane was from 10% to 80% during their presence in the post-anesthesia care unit. This side effect of general anesthesia causes distressing for parents and staff and may cause parental dissatisfaction with their child's care. Children during postoperative ED have the risks of injuring themselves or their caregivers, disruption of surgical repair, operative site bleeding, removing Intravenous (iv) lines or drains and increasing pain. This behavior may require more nursing supervision, overloading nursing resources. Although postoperative ED episodes are of short duration, their prevention is essential. Children experiencing postoperative ED may exhibit new-onset maladaptive behavioral abnormalities in the postoperative period such as enuresis, night-time crying, and separation anxiety, up to 14 days post-surgery. The risk factors to postoperative ED are patients' characters (preschool age and preexisting behavior), the surrounding environment as parental anxiety, type of anesthesia (volatile anesthetics) as sevoflurane or halothane and the type of surgery as tonsillectomy, adenoidectomy, and strabismus surgery which is one of the most commonly undertaken surgeries in pediatric patients. It may cause visual disturbance in the recovery phase, which can result. In order to diagnose ED, the presence of pain during recovery from general anesthesia must be ruled out because it leads to a change in behavior that resembles delirium. Fortunately, one of the advantages of using the Pediatric Anesthesia Emergence Delirium (PAED) scale is its ability to distinguish between the ED and the change in behavior resulting from pain, because it focuses on changes in awareness and knowledge that are not changed by pain. Prophylactic drugs against the occurrence of postoperative ED include the adjuvant use of α2 adrenoreceptor agonists such as dexmedetomidine, ketamine, midazolam, propofol, and fentanyl. The use of these drugs with them adverse effects should be weighed against the fact that postoperative ED is a self-limited disorder. Dexmedetomidine is a highly selective α2-adrenergic receptor agonist that is associated with sedative and analgesic sparing effects. It is commonly used for prevention of emergence delirium and agitation, perioperative sympatholysis, cardiovascular stabilization, and preservation of respiratory function. Ketamine is a dissociative anesthetic. Its mechanism of action is mainly via a noncompetitive antagonism of the N - methyl - D - aspartic acid (NMDA) receptor. It also targets other receptors, such as a - amino - 3 - hydroxy - 5 - methyl - 4 - isoxazolepropionic acid (AMPA) receptors, and has additional acts as an agonist of the sigma 1 receptor. It is commonly used for acute pain management, chronic pain management, prevention of ED, and postoperative nausea and vomiting. Midazolam is short acting benzodiazepine which is central nervous system depressant. It is commonly used for premedication during pediatric anesthesia, for prevention of emotional distress and ED due to its sedative and anxiolytic properties, additionally it used for reduction of the analgesic requirement and to prevent postoperative nausea and vomiting
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jul 2025
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 26, 2025
CompletedFirst Posted
Study publicly available on registry
July 9, 2025
CompletedStudy Start
First participant enrolled
July 15, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 15, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
January 30, 2026
CompletedJuly 16, 2025
July 1, 2025
6 months
June 26, 2025
July 10, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
the incidence and severity of ED using the Pediatric Anesthesia Emergence Scale (PAED) Scale.
the incidence and severity of ED using the Pediatric Anesthesia Emergence Scale (PAED) Scale.
preoperative, baseline, PACU, 10, 20, 30 mins postoperative , perioperative
Secondary Outcomes (1)
recovery time. postoperative pain severity
preoperative as baseline and upon arrival to PACU, then 10, 20, and 30 minutes after admission, perioperative
Study Arms (4)
Control group (C group)
PLACEBO COMPARATORpatients will receive 5ml of normal saline intravenous10 min before the end of the surgical procedure as placebo.
Dexmedetomidine group (D group)
ACTIVE COMPARATORpatients will receive intravenous dexmedetomidine (0.25 μg/kg diluted with normal saline to a volume of 5 ml solution) 10 min before the end of the surgical procedure.
Ketamine group (K group)
ACTIVE COMPARATORpatients will receive intravenous ketamine (0.25mg/kg diluted with normal saline to a volume of 5 ml solution) 10 min before the end of the surgical procedure.
Midazolam group (M group)
ACTIVE COMPARATORpatients will receive intravenous midazolam (0.05 mg/kg diluted with normal saline to a volume of 5 ml solution) 10 min before the end of the surgical procedure.
Interventions
patients will receive intravenous dexmedetomidine (0.25 μg/kg diluted with normal saline to a volume of 5 ml solution) 10 min before the end of the surgical procedure.
patients will receive intravenous ketamine (0.25mg/kg diluted with normal saline to a volume of 5 ml solution) 10 min before the end of the surgical procedure.
patients will receive intravenous midazolam (0.05 mg/kg diluted with normal saline to a volume of 5 ml solution) 10 min before the end of the surgical procedure.
patients will receive 5ml of normal saline intravenous10 min before the end of the surgical procedure as placebo.
Eligibility Criteria
You may qualify if:
- Parents or first degree relative acceptance. - Age: 3-5 years old. - Body weight: 5% -85% of BMI (kg /m2) of the same age and sex. - Sex: Both sexes. - Physical Status: Of class I and II according to American Society of Anesthesiologists (ASA) classification. - Type of surgery: Squint surgeries under sevoflurane anesthesia.
You may not qualify if:
- \- Children with score 3 (i.e. anxious and crying) according to the three-point anxiety scale (Kain et al. 2004). - Children with preexisting abnormal behavior, psychiatric disorders, developmental delay or central nervous system diseases (epilepsy). - Children with chronic use of sedative drugs. - Children with severe respira
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (18)
Yao Y, Sun Y, Lin J, Chen W, Lin Y, Zheng X. Intranasal dexmedetomidine versus oral midazolam premedication to prevent emergence delirium in children undergoing strabismus surgery: A randomised controlled trial. Eur J Anaesthesiol. 2020 Dec;37(12):1143-1149. doi: 10.1097/EJA.0000000000001270.
PMID: 32976205BACKGROUNDWang HY, Chen TY, Li DJ, Lin PY, Su KP, Chiang MH, Carvalho AF, Stubbs B, Tu YK, Wu YC, Roerecke M, Smith L, Tseng PT, Hung KC. Association of pharmacological prophylaxis with the risk of pediatric emergence delirium after sevoflurane anesthesia: An updated network meta-analysis. J Clin Anesth. 2021 Dec;75:110488. doi: 10.1016/j.jclinane.2021.110488. Epub 2021 Sep 1.
PMID: 34481361BACKGROUNDUakritdathikarn T, Chongsuvivatwong V, Geater AF, Vasinanukorn M, Thinchana S, Klayna S. Perioperative desaturation and risk factors in general anesthesia. J Med Assoc Thai. 2008 Jul;91(7):1020-9.
PMID: 18839840BACKGROUNDTempleton TW, Goenaga-Diaz EJ, Downard MG, McLouth CJ, Smith TE, Templeton LB, Pecorella SH, Hammon DE, O'Brien JJ, McLaughlin DH, Lawrence AE, Tennant PR, Ririe DG. Assessment of Common Criteria for Awake Extubation in Infants and Young Children. Anesthesiology. 2019 Oct;131(4):801-808. doi: 10.1097/ALN.0000000000002870.
PMID: 31343462BACKGROUNDShukry M, Clyde MC, Kalarickal PL, Ramadhyani U. Does dexmedetomidine prevent emergence delirium in children after sevoflurane-based general anesthesia? Paediatr Anaesth. 2005 Dec;15(12):1098-104. doi: 10.1111/j.1460-9592.2005.01660.x.
PMID: 16324031BACKGROUNDShin S, Evans F, & Mason K (2021) "Emergence delirium in pediatric patients", Anesthesia tutorial of the week; 422,. 1-6.
BACKGROUNDLee AC, Reduque LL, Luban NL, Ness PM, Anton B, Heitmiller ES. Transfusion-associated hyperkalemic cardiac arrest in pediatric patients receiving massive transfusion. Transfusion. 2014 Jan;54(1):244-54. doi: 10.1111/trf.12192. Epub 2013 Apr 15.
PMID: 23581425BACKGROUNDMountain BW, Smithson L, Cramolini M, Wyatt TH, Newman M. Dexmedetomidine as a pediatric anesthetic premedication to reduce anxiety and to deter emergence delirium. AANA J. 2011 Jun;79(3):219-24.
PMID: 21751690BACKGROUNDMerkel SI, Voepel-Lewis T, Shayevitz JR, Malviya S. The FLACC: a behavioral scale for scoring postoperative pain in young children. Pediatr Nurs. 1997 May-Jun;23(3):293-7.
PMID: 9220806BACKGROUNDKim YH, Yoon SZ, Lim HJ, Yoon SM. Prophylactic use of midazolam or propofol at the end of surgery may reduce the incidence of emergence agitation after sevoflurane anaesthesia. Anaesth Intensive Care. 2011 Sep;39(5):904-8. doi: 10.1177/0310057X1103900516.
PMID: 21970137BACKGROUNDKain ZN, Caldwell-Andrews AA, Maranets I, McClain B, Gaal D, Mayes LC, Feng R, Zhang H. Preoperative anxiety and emergence delirium and postoperative maladaptive behaviors. Anesth Analg. 2004 Dec;99(6):1648-1654. doi: 10.1213/01.ANE.0000136471.36680.97.
PMID: 15562048BACKGROUNDFleming S, Thompson M, Stevens R, Heneghan C, Pluddemann A, Maconochie I, Tarassenko L, Mant D. Normal ranges of heart rate and respiratory rate in children from birth to 18 years of age: a systematic review of observational studies. Lancet. 2011 Mar 19;377(9770):1011-8. doi: 10.1016/S0140-6736(10)62226-X.
PMID: 21411136BACKGROUNDFang XZ, Gao J, Ge YL, Zhou LJ, Zhang Y. Network Meta-Analysis on the Efficacy of Dexmedetomidine, Midazolam, Ketamine, Propofol, and Fentanyl for the Prevention of Sevoflurane-Related Emergence Agitation in Children. Am J Ther. 2016 Jul-Aug;23(4):e1032-42. doi: 10.1097/MJT.0000000000000321.
PMID: 26186683BACKGROUNDECKENHOFF JE, KNEALE DH, DRIPPS RD. The incidence and etiology of postanesthetic excitment. A clinical survey. Anesthesiology. 1961 Sep-Oct;22:667-73. doi: 10.1097/00000542-196109000-00002. No abstract available.
PMID: 13889092BACKGROUNDDoerrfuss JI, Kramer S, Tafelski S, Spies CD, Wernecke KD, Nachtigall I. Frequency, predictive factors and therapy of emergence delirium: data from a large observational clinical trial in a broad spectrum of postoperative pediatric patients. Minerva Anestesiol. 2019 Jun;85(6):617-624. doi: 10.23736/S0375-9393.19.13038-6. Epub 2019 Jan 18.
PMID: 30665281BACKGROUNDDahmani S, Stany I, Brasher C, Lejeune C, Bruneau B, Wood C, Nivoche Y, Constant I, Murat I. Pharmacological prevention of sevoflurane- and desflurane-related emergence agitation in children: a meta-analysis of published studies. Br J Anaesth. 2010 Feb;104(2):216-23. doi: 10.1093/bja/aep376. Epub 2010 Jan 3.
PMID: 20047899BACKGROUNDBong CL, Lim E, Allen JC, Choo WL, Siow YN, Teo PB, Tan JS. A comparison of single-dose dexmedetomidine or propofol on the incidence of emergence delirium in children undergoing general anaesthesia for magnetic resonance imaging. Anaesthesia. 2015 Apr;70(4):393-9. doi: 10.1111/anae.12867. Epub 2014 Oct 14.
PMID: 25311146BACKGROUNDAono J, Ueda W, Mamiya K, Takimoto E, Manabe M. Greater incidence of delirium during recovery from sevoflurane anesthesia in preschool boys. Anesthesiology. 1997 Dec;87(6):1298-300. doi: 10.1097/00000542-199712000-00006.
PMID: 9416712BACKGROUND
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- lecturer of anesthesia and surgical intensive care
Study Record Dates
First Submitted
June 26, 2025
First Posted
July 9, 2025
Study Start
July 15, 2025
Primary Completion
January 15, 2026
Study Completion
January 30, 2026
Last Updated
July 16, 2025
Record last verified: 2025-07
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
- Time Frame
- planned after the completion of the study and publication
- Access Criteria
- principal investigator
planned after the completion of the study and publication