以往研究发现中耳圆窗局部用药比全身用药更加明显地增加耳蜗血流。为了解局部应用血管活性药物是否有益于耳蜗生理功能，应用激光多谱勒方法测量耳蜗血流量，观察不同剂量的联苯达喷、硝普钢、烟酸和组织胺对耳蜗复合动作电位见波的影响。结果发现硝普钢增加耳蜗血流量，其程 Previous studies found that topical round ear window medications significantly increased cochlear blood flow more than systemic medication. In order to understand whether topical application of vasoactive drugs is beneficial to the physiological function of the cochlea, the laser Doppler flowmetry was used to measure the cochlear blood flow, and the effects of different doses of dipyridamole, nitrochloride, niacin and histamine on the cochlear composite action potentials were observed Impact. The results showed that nitrocellulose increased cochlear blood flow, its course