Journal of Yeungnam Medical Science

Original article

Enhancing ketamine anesthesia with midazolam and fentanyl for children’s ear surgery: a prospective randomized study: Seong Min Han, So Young Kwon, Jang Hyeok In, Jin Deok Joo; J Yeungnam Med Sci. 2024;41(3):207-212. Published online May 23, 2024; DOI: https://doi.org/10.12701/jyms.2024.00276

Abstract PDF: Background
Myringotomy with tympanostomy tube insertion (MTI) is a superficial surgical procedure used to prevent hearing loss in children with serous otitis media. Intravenous anesthesia, often ketamine, is preferred for this procedure because of its ability to induce sedation without compromising airway reflexes. However, ketamine alone may be insufficient and potentially lead to spontaneous movement during surgery. This study evaluated the effectiveness of midazolam and fentanyl as adjuvants to ketamine in reducing spontaneous movement during MTI and enhancing the quality of recovery.
Methods
This study involved two groups of 30 patients each: one group received intravenous ketamine (1.5 mg/kg) with an equal volume of normal saline (K group), while the other received a combination of midazolam, fentanyl, and ketamine (0.05 mg/kg, 1 μg/kg, and 1.5 mg/kg, respectively; MFK group). We assessed side effects, intraoperative patient movement, surgeon satisfaction, and emergence agitation scores.
Results
The MFK group exhibited significantly lower scores for patient movement (p<0.01) and emergence agitation (p<0.01) and markedly higher surgeon satisfaction scores (p<0.01) than the K group.
Conclusion
Administering a midazolam-fentanyl-ketamine combination effectively reduced spontaneous movement during surgery and emergence agitation during recovery without prolonging discharge times in children undergoing MTI.

Review Article

Ketamine : Refocused Role of Ketamine in Pain Management: Sun Ok Song; Yeungnam Univ J Med. 2007;24(2 Suppl):S108-117. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S108

Abstract PDF: Ketamine has used as a dissociative anesthetics from 40 years ago. Its mechanism of action is an antagonism of the N-methyl-D-aspartate (NMDA) receptors, which has an important role into the central sensitization during pain states. The role of ketamine, in lower sub-anesthetic doses, has recently gained increasing interest in pain management. There are considerable numbers of trials to use ketamine in acute or chronic pain states. Recently, Hocking et al. summarized their recent reviews of the evidence concerning ketamine’s clinical use on PAIN: Clinical Updates. In this review, the author introduce their summery with personal experience. Based on their summary, the primary role of ketamine in such subanesthetic doses is as an ‘anti-hyperalgesic’, ‘anti-allodynic’ or ‘tolerance-protective’ agent rather than as a primarily ‘analgesic’. However, to support the evidence-based clinical guideline using a ketamine in pain management, there will be needed numerous high-quality studies that access both immediate and long-term outcomes.

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