Meechan J G, Blair G S
Department of Oral Surgery, Dental School, University of Newcastle-Upon-Tyne, England.
Int J Oral Maxillofac Surg. 1989 Apr;18(2):87-9. doi: 10.1016/s0901-5027(89)80137-7.
The efficacy of 2 designs of automatic aspirating syringe was investigated in 440 patients receiving regional block anaesthesia in the mandible. The incidence of positive aspiration was significantly different between operators and between syringes. Positive aspiration was achieved in 18.9% of patients at some stage during administration of the local anaesthetic solution.
在440例接受下颌区域阻滞麻醉的患者中，对两种自动抽吸注射器的效果进行了研究。不同操作者以及不同注射器之间，出现抽吸阳性的发生率存在显著差异。在局部麻醉药溶液给药的某个阶段，18.9%的患者出现了抽吸阳性。
