咽丛神经切断术在发音重建中的作用

目的　为解除咽缩肌的痉挛 ,提高喉全切除术后用发音管发音重建的成功率。方法　在一侧舌骨大角后内侧咽缩肌的后表面 6 5mm左右 ,可找到咽丛神经支配咽下缩肌的主支或分支 ,将其切断。结果　 16例中 15例咽丛神经切断术后发音重建成功 ,成功率为 93 8%。结论　咽丛神经切断术取代咽缩肌切断术是可行的。咽丛神经切断术能提高Blom Singer发音管发音重建的成功率 ,值得推广应用。

Pharyngeal plexus neurectomy for voice restoration of alaryngeal

Objective To release the spasm of pharyngeal constrictor and raise the successful rate of voice rehabilitation in total laryngectomized patients wearing Blom-Singer prothesis.Methods The main branch of the pharyngeal plexus nerves within the inferior contractor can be found at the posterior side of hyoid greater cornu, which is about 6 5 mm from the back of constrictor The spasm of the inferior constrictor can be resolved by cut off the nerve Results Voice restoration was achieved in 15 cases after pharyngeal plexus neurectomy, the successful rate was 93 75% Conclusion It is feasible to replace pharyngeal myotomy by nerve plexus neurectomy and raise the voice rehabilitation rate.