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骶管阻滞是儿科麻醉中普遍应用的区域阻滞技术之一,然而骶管阻滞时,单次注入骶管的局部麻醉药作用持续的时间有限。为了延长局部麻醉药作用时间、增强镇痛效果,临床上经常在局部麻醉药液中加入其他辅助药物。右美托咪定就是其中之一,它是高选择性α2肾上腺素受体激动剂,加入局麻药中注入骶管后对小儿术后镇静、镇痛效果等方面有诸多优点。作者就现有右美托咪定联合局麻药应用于小儿骶管阻滞的研究进展作一综述。
Sacral block is one of the most commonly used regional block techniques in pediatric anesthesia. However, the local narcotics injected into the sacral canal for a single sacral block have a limited duration. In order to extend the role of local anesthetic time and enhance the analgesic effect, often in clinical anesthesia to join other auxiliary drugs. Dexmedetomidine is one of them, it is a highly selective α2 adrenergic receptor agonist, adding local anesthetic into the caudal pediatric postoperative sedation, analgesic effect, etc. There are many advantages. The authors review the progress of the existing dexmedetomidine combined with local anesthetics applied in pediatric caudal block.