de Lange J, Baas E M, Horsthuis R B G, Booij A
Department of Oral and Maxillofacial Surgery, Isala Klinieken, Zwolle, The Netherlands.
Int J Oral Maxillofac Surg. 2008 Jan;37(1):21-4. doi: 10.1016/j.ijom.2007.07.017. Epub 2007 Sep 10.
Cocaine is a very potent vasoconstrictor that is used by ENT specialists to reduce blood loss and enhance visibility during nasal surgery. In orthognathic surgery, especially Le Fort I procedures, excessive blood loss is a relatively frequent complication. In this study, a prospective randomized clinical trial on the effect on blood loss of cocaine/adrenaline application to the nasal floor is presented. Thirty patients who underwent a Le Fort I procedure were randomized for cocaine/adrenaline application. Blood loss and duration of surgery were registered for both groups. The results showed a significant reduction of blood loss in the group with cocaine/adrenaline application (P<0.001), but no significant difference in operating time. No side effects were observed. From this study, it can be concluded that the application of cocaine/adrenaline to the nasal floor is a safe procedure to reduce blood loss during a Le Fort I procedure.
可卡因是一种非常强效的血管收缩剂,耳鼻喉科专家在鼻科手术中使用它来减少失血并提高视野清晰度。在正颌外科手术中,尤其是勒福Ⅰ型手术,失血过多是一种相对常见的并发症。在本研究中,呈现了一项关于在鼻底应用可卡因/肾上腺素对失血影响的前瞻性随机临床试验。30例行勒福Ⅰ型手术的患者被随机分为应用可卡因/肾上腺素组。记录两组的失血量和手术时长。结果显示,应用可卡因/肾上腺素组的失血量显著减少(P<0.001),但手术时间无显著差异。未观察到副作用。从本研究可以得出结论,在勒福Ⅰ型手术中,在鼻底应用可卡因/肾上腺素是减少失血的一种安全方法。