Simonini Alessandro, Brogi Etrusca, Cascella Marco, Vittori Alessandro
Department of Pediatric Anaesthesia and Intensive Care, S.C. SOD Anestesia e Rianimazione Pediatrica, Ospedale G. Salesi, Ancona, 60123, Italy.
Department Anesthesia and Intensive Care, University of Pisa, Pisa, 56126, Italy.
Open Med (Wars). 2022 Jul 6;17(1):1134-1147. doi: 10.1515/med-2022-0509. eCollection 2022.
Although ketamine is primarily used for induction and maintenance of general anesthesia, it also presents sedative, amnestic, anesthetics, analgesic, antihyperalgesia, neuroprotective, anti-inflammatory, immunomodulant, and antidepressant effects. Its unique pharmacodynamics and pharmacokinetic properties allow the use of ketamine in various clinical settings including sedation, ambulatory anesthesia, and intensive care practices. It has also adopted to manage acute and chronic pain management. Clinically, ketamine produces dissociative sedation, analgesia, and amnesia while maintaining laryngeal reflexes, with respiratory and cardiovascular stability. Notably, it does not cause respiratory depression, maintaining both the hypercapnic reflex and the residual functional capacity with a moderate bronchodilation effect. In the pediatric population, ketamine can be administered through practically all routes, making it an advantageous drug for the sedation required setting such as placement of difficult vascular access and in uncooperative and oppositional children. Consequently, ketamine is indicated in prehospital induction of anesthesia, induction of anesthesia in potentially hemodynamic unstable patients, and in patients at risk of bronchospasm. Even more, ketamine does not increase intracranial pressure, and it can be safely used also in patients with traumatic brain injuries. This article is aimed to provide a brief and practical summary of the role of ketamine in the pediatric field.
尽管氯胺酮主要用于全身麻醉的诱导和维持,但它还具有镇静、遗忘、麻醉、镇痛、抗痛觉过敏、神经保护、抗炎、免疫调节和抗抑郁作用。其独特的药效学和药代动力学特性使得氯胺酮可用于各种临床场景,包括镇静、门诊麻醉和重症监护实践。它也已被用于管理急慢性疼痛。临床上,氯胺酮产生解离性镇静、镇痛和遗忘作用,同时保持喉反射,呼吸和心血管稳定。值得注意的是,它不会引起呼吸抑制,在具有适度支气管扩张作用的情况下保持高碳酸血症反射和残余功能能力。在儿科人群中,氯胺酮几乎可以通过所有途径给药,使其成为困难血管通路放置等需要镇静的情况以及不合作和反抗儿童的有利药物。因此,氯胺酮适用于院前麻醉诱导、潜在血流动力学不稳定患者的麻醉诱导以及有支气管痉挛风险的患者。甚至,氯胺酮不会增加颅内压,也可安全用于创伤性脑损伤患者。本文旨在简要而实际地总结氯胺酮在儿科领域的作用。