Pashley E L, Pashley D H, Kepler E, Whitford G M
J Oral Maxillofac Surg. 1983 Jul;41(7):438-41. doi: 10.1016/0278-2391(83)90128-3.
Hematoma formation following the puncture of femoral veins or arteries of dogs was determined using mercury-filled strain gauges. Arterial bleeding always produced a hematoma. The duration of the swelling was prolonged if heparin was previously administered. Bleeding from the femoral vein did not produce a hematoma unless venous pressure was elevated by venous occlusion. The results indicate that the rapidly developing hematoma occasionally seen in dental practice following the administration of local anesthetics is of arterial origin.
使用充汞应变仪测定犬股静脉或动脉穿刺后血肿的形成情况。动脉出血总是会形成血肿。如果事先给予肝素，肿胀持续时间会延长。除非通过静脉闭塞使静脉压升高，股静脉出血不会形成血肿。结果表明，牙科实践中局部麻醉给药后偶尔出现的迅速形成的血肿起源于动脉。
