院前急救是急救医疗服务体系(EMSS)的一个子系统,是急救过程中的首要环节,也是院内急救的基础。院前急救在国内外已开展多年,并取得了丰富的经验和良好的效果。而针对颌面部创伤的院前急救工作国内文献报道较少。颌面部组织由于血运丰富,受创伤后出血多,易发生出血性休克; Prehospital first aid is a subsystem of emergency medical service system (EMSS), which is the primary link in the emergency process and the basis of first aid in hospital. Prehospital first aid has been carried out at home and abroad for many years and has gained rich experience and good results. There are few reports of prehospital emergency work for maxillofacial trauma. Maxillofacial tissue due to rich blood supply, bleeding after trauma and more prone to hemorrhagic shock;