The Lesser Palatine Nerve Innervates the Levator Veli Palatini Muscle.
The Lesser Palatine Nerve Innervates the Levator Veli Palatini Muscle.
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DOI：
10.1097/gox.0000000000001044
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发表时间：
2016-09
期刊：
影响因子：
--
通讯作者：
Suzuki S
中科院分区：
文献类型：
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作者：
Kishimoto H;Matsuura Y;Kawai K;Yamada S;Suzuki S
当腭小神经(LPN)被认为是三叉神经的一个分支并支配软腭感觉时，LPN是否含有运动纤维尚不清楚。在这项研究中，我们监测了3名患者在腭裂成形术中刺激LPN时的腭帆提肌(LVP)肌电。肌肉肌电图显示电刺激LPN诱发的肌源性电位。结合我们以前的解剖学研究发现，运动神经纤维来自面神经，这一结果支持LVP的双神经支配学说，即咽丛和面神经共同支配LVP。在腭裂成形术中识别和保留LPN可能会改善术后的语音效果。
When the lesser palatine nerve (LPN) is supposed to be a branch of the trigeminal nerve and innervate sensation of the soft palate, whether the LPN contains motor fibers is unclear. In this study, we monitored the electromyogram of the levator veli palatini (LVP) muscle on stimulating the LPN during palatoplasty in 3 patients. The electromyogram of the muscles showed the myogenic potential induced by electrostimulation of the LPN. Taken together with the finding from our previous anatomical study that the motor fibers come from the facial nerve, this result supports the double innervation theory of the LVP, which posits that both the pharyngeal plexus and the facial nerve innervate it. Identifying and preserving the LPN during palatoplasty might improve postoperative speech results.