Intranasal Dexmedetomidine-esketamine Administration and Postoperative Pain in Pediatric Patients

Официальное название

Impact of Intranasal Dexmedetomidine-esketamine Administration on Postoperative Pain in Pediatric Patients Undergoing Adenotonsillectomy: a Randomized, Placebo-controlled Trial

Обзор

Postoperative pain after adenoid and tonsil surgery is significant, with approximately 75% of pediatric patients experiencing severe postoperative pain. Currently, there is a lack of clinical strategies to safely and effectively manage postoperative pain in children undergoing adenoid and tonsil surgery. Dexmedetomidine and esketamine can achieve appropriate sedation levels and alleviate postoperative pain when used in children. Both drugs can be administered intranasally, and their pharmacological effects complement each other, reducing side effects. This study aims to investigate whether intranasal administration of dexmedetomidine-esketamine combination can improve postoperative analgesia in children undergoing adenoid and tonsil surgery.

Подробное описание

Adenoid and tonsil surgery is a common surgical intervention for obstructive sleep-disordered breathing and is one of the most frequently performed surgeries in pediatric patients. The operation lasts approximately 45 minutes but is associated with significant postoperative pain; about 75% of children experiencing severe postoperative pain, which can affect swallowing and may cause psychological distress in children. About 12-16% of children return to hospital after discharge due to pain or dehydration. Postoperative analgesia during the initial two days is often inadequate. Currently, clinicians have explored various strategies to effectively manage postoperative pain after adenoid and tonsil surgery in children, but the results are unreliable and have multiple side effects.

Dexmedetomidine is a highly selective α2 receptor agonist with anxiolytic, sedative, and analgesic effects, and has a minimal impact on respiration at low doses. When used as an adjuvant analgesic after surgery, it improves analgesia, reduces opioid consumption, and decreases opioid-related adverse events. Dexmdetomidine is also used in pediatric patients but may produce bradycardia and hypotension at routine doses. Ketamine is a non-competitive N-Methyl-D-aspartic acid (NMDA) receptor antagonist and has been used as an anesthetic and analgesic for decades. Esketamine is the S-enantiomer of ketamine and has an analgesic potent of approximately 2 times of that of ketamine. Esketamine is also used in children but may produce neuropsychiatric side effects.

Dexmedetomidine and esketamine can each be administered intranasally. When used in combination, the sympathomimetic activity of esketamine may counteract the bradycardic and hypotensive effects of dexmedetomidine, and the sedative effect of dexmedetomidine can mitigate the neuropstchiatric side effects of esketamine. Intranasal administration of dexmedetomidine-esketamine combination has been used for preoperative sedation in children and may improve postoperative analgesia after adenoid and tonsil surgery. However, the success rate and efficacy of intranasal dexmedetomidine-esketamine are difficult to guarantee in preschool children due to poor cooperation and intranasal secretions.

This randomized trial is designed to test the hypothesis that intranasal administration of dexmedetomidine-esketamine combination after anesthesia intubation may improve postoperative analgesia in children undergoing adenoid and tonsil surgery.

Вмешательства

• Препарат Intranasal dexmedetomidine-esketamine
  A mixture of dexmedetomidine-esketamine combination will administered intranasally after anesthesia induction.
• Препарат Intranasal placebo (normal saline)
  Placebo (normal saline) will administered intranasally after anesthesia induction.

Первичные конечные точки

• Area under curve of pain intensity within 48 hours after surgery [Срок оценки: Up to 48 hours after surgery]

Вторичные конечные точки (2)

• Sleep quality during the first three nights after surgery [Срок оценки: Up to three days after surgery]
• Cumulative consumption of analgesics within 48 hours [Срок оценки: Up to 48 hours after surgery]

Критерии участия

Критерии включения

• Aged 3-7 years old.
• Scheduled to undergo adenoidectomy and/or tonsillectomy under general anesthesia.
• Provides written informed consent by the guardian.

Критерии исключения

• Unsuitable for intranasal administration due to nasal diseases (such as rhinitis, nasal polyps, or any condition causing nasal congestion).
• Clearly diagnosed cardiovascular and respiratory diseases.
• Communication barriers due to delayed neurological development or visual or hearing impairments.
• Traumatic brain injury or neurosurgery.
• Abnormal liver and kidney function (biomarkers higher than twice of the upper normal limits).
• Amercian Society of Anesthesiologists classification ≥ III.
• Body mass index higher than the 95th percentile of the age- and sex-standardized references.
• Allergic to dexmedetomidine and/or esketamine.
• Any other conditions that are deemed unsuitable for study participation.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Четверное слепое

Основная цель

Профилактика

Центры проведения

Китай · 1 центр

• Peking University First Hospital — Пекин

Публикации

• Stanko D, Bergesio R, Davies K, Hegarty M, von Ungern-Sternberg BS. Postoperative pain, nausea and vomiting following adeno-tonsillectomy - a long-term follow-up. Paediatr Anaesth. 2013 Aug;23(8):690-6. doi: 10.1111/pan.12170. Epub 2013 May 13. PMID 23668258
• Brown KA, Laferriere A, Lakheeram I, Moss IR. Recurrent hypoxemia in children is associated with increased analgesic sensitivity to opiates. Anesthesiology. 2006 Oct;105(4):665-9. doi: 10.1097/00000542-200610000-00009. PMID 17006062
• Tan L, Carachi P, Anderson BJ. The time course of pain after tonsillectomy. Paediatr Anaesth. 2020 Sep;30(9):1051-1053. doi: 10.1111/pan.13970. Epub 2020 Aug 6. No abstract available. PMID 32666587
• Postier AC, Chambers C, Watson D, Schulz C, Friedrichsdorf SJ. A descriptive analysis of pediatric post-tonsillectomy pain and recovery outcomes over a 10-day recovery period from 2 randomized, controlled trials. Pain Rep. 2020 Mar 6;5(2):e819. doi: 10.1097/PR9.0000000000000819. eCollection 2020 Mar-Apr. PMID 32440612
• Levin M, Seligman NL, Hardy H, Mohajeri S, Maclean JA. Pediatric pre-tonsillectomy education programs: A systematic review. Int J Pediatr Otorhinolaryngol. 2019 Jul;122:6-11. doi: 10.1016/j.ijporl.2019.03.024. Epub 2019 Mar 22. PMID 30921630
• Lima LACN, Otis A, Balram S, Giasson AB, Carnevale FA, Frigon C, Brown KA. Parents' perspective on recovery at home following adenotonsillectomy: a prospective single-centre qualitative analysis. Can J Anaesth. 2023 Jul;70(7):1202-1215. doi: 10.1007/s12630-023-02479-2. Epub 2023 May 9. PMID 37160822
• Stewart DW, Ragg PG, Sheppard S, Chalkiadis GA. The severity and duration of postoperative pain and analgesia requirements in children after tonsillectomy, orchidopexy, or inguinal hernia repair. Paediatr Anaesth. 2012 Feb;22(2):136-43. doi: 10.1111/j.1460-9592.2011.03713.x. Epub 2011 Oct 25. PMID 22023485
• Dorkham MC, Chalkiadis GA, von Ungern Sternberg BS, Davidson AJ. Effective postoperative pain management in children after ambulatory surgery, with a focus on tonsillectomy: barriers and possible solutions. Paediatr Anaesth. 2014 Mar;24(3):239-48. doi: 10.1111/pan.12327. Epub 2013 Dec 11. PMID 24330523

Идентификаторы

NCT: NCT07479602 · 2026-0115

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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