Nimodipine and acceleration of functional recovery of the facial nerve after crush injury.
Nimodipine and acceleration of functional recovery of the facial nerve after crush injury.
复制标题
尼莫地平与挤压伤后面神经功能恢复的加速作用。
DOI:
10.1001/archfacial.2009.95
复制
发表时间:
2010
影响因子:
--
通讯作者:
Hadlock,TessaA
中科院分区:
文献类型:
--
作者:
Lindsay,RobinW;Heaton,JamesT;Edwards,Colin;Smitson,Christopher;Hadlock,TessaA
ObjectiveTo establish whether nimodipine, a calcium channel blocker, accelerates or otherwise improves functional recovery of whisking after facial nerve crush injury in the rat.MethodsThirty rats underwent exposure of the left main trunk of the facial nerve followed by a standard crush injury and subsequent quantitative facial movement testing. Animals were randomized into an experimental group (n = 15) and a control group (n = 15). Four days prior to facial nerve manipulation, experimental animals underwent subcutaneous implantation of a nimodipine-secreting pellet. All animals were tested preoperatively and on postoperative days 2, 8 to 17, 20, 22, 24, and 31 using a validated, quantitative whisking kinematics apparatus. Whisks were analyzed for amplitude, velocity, and acceleration.ResultsAnimals receiving nimodipine demonstrated significantly better whisking on 5 days (postoperative days 9, 11 to 13, and 20) compared with control animals (P< .001,P= .003,P= .009,P= .009, andP= .009, respectively; 1-tailedttest). Overall, the nimodipine-treated animals showed earlier recovery compared with the untreated animals.ConclusionsWe demonstrate that nimodipine improves recovery of whisking after facial nerve crush. This finding corroborates the semiquantitative findings of others, and provides complete whisking kinematic data on its effects. Given the low adverse effect profile of nimodipine, there may be clinical implications in its administration in patients experiencing facial nerve injury.