Herrmann M
Rev Med Suisse Romande. 1997 Oct;117(10):801-3.
The optimization of local anesthesia will be one essential condition to enlarge and improve the ambulatory surgery and its acceptation by the patients. Indication to local anesthesia can be increased by prolongation of its duration through adjunction of adrenaline to lidocaine at a 1:200,000 concentration and by diminishing injection-related pain through buffering the anesthetic solution with a 8.4% sodium bicarbonate solution at a concentration of 1 ml to 10 ml of lidocaine. However, this preparation is unstable and must be utilized within a few days.
局部麻醉的优化将是扩大和改善门诊手术以及提高患者接受度的一个基本条件。通过将肾上腺素以1:200,000的浓度加入利多卡因中延长其持续时间，以及通过用8.4%的碳酸氢钠溶液以每10毫升利多卡因加1毫升的浓度缓冲麻醉溶液来减轻注射相关疼痛，可以增加局部麻醉的适应证。然而，这种制剂不稳定，必须在几天内使用。
