Lew J K, Mobley K A, Achola K J, Smith G
University Department of Anaesthesia, Leicester Royal Infirmary.
Anaesthesia. 1988 Jun;43(6):490-2. doi: 10.1111/j.1365-2044.1988.tb06640.x.
Plasma catecholamine concentrations were measured in 12 patients who had bilateral bat-ear surgery following infiltration of each ear with 2 ml 2% lignocaine with adrenaline 1:100,000. Venous blood samples were withdrawn before and at set intervals after infiltration. Plasma adrenaline concentration increased from 0.8 pmol/ml to a peak of 2.2 pmol/ml at 2 minutes after infiltration; this is an increase of 175%. There was no significant change in plasma noradrenaline concentration.
对12名接受双侧招风耳手术的患者进行了血浆儿茶酚胺浓度测定，每只耳朵用2毫升含1:100,000肾上腺素的2%利多卡因浸润。在浸润前及浸润后设定的时间间隔采集静脉血样。血浆肾上腺素浓度在浸润后2分钟从0.8皮摩尔/毫升升至峰值2.2皮摩尔/毫升；增幅为175%。血浆去甲肾上腺素浓度无显著变化。
