Optimal duration of percutaneous microballoon compression for treatment of trigeminal nerve injury
Fuyong Li
Shuai Han
Yi Ma
Fuxin Yi
Xinmin Xu
Yunhui Liu
摘要：Percutaneous microballoon compression of the trigeminal ganglion is a brand new operative technique for the treatment of trigeminal neuralgia. However, it is unclear how the procedure mediates pain relief, and there are no standardized criteria, such as compression pressure, com-pression time or balloon shape, for the procedure. In this study, percutaneous microballoon compression was performed on the rabbit trigeminal ganglion at a mean inlfation pressure of 1,005 ± 150 mmHg for 2 or 5 minutes. At 1, 7 and 14 days after percutaneous microballoon compression, the large-diameter myelinated nerves displayed axonal swelling, rupture and demy-elination under the electron microscope. Fragmentation of myelin and formation of digestion chambers were more evident after 5 minutes of compression. Image analyzer results showed that the diameter of trigeminal ganglion cells remained unaltered after compression. These experi-mental ifndings indicate that a 2-minute period of compression can suppress pain transduction. Immunohistochemical staining revealed that vascular endothelial growth factor expression in the ganglion cells and axons was signiifcantly increased 7 days after trigeminal ganglion compression, however, the changes were similar after 2-minute compression and 5-minute compression. The upregulated expression of vascular endothelial growth factor in the ganglion cells after percu-taneous microballoon compression can promote the repair of the injured nerve. These ifndings suggest that long-term compression is ideal for patients with recurrent trigeminal neuralgia.
机标关键词：trigeminal ganglionendothelial growth factortrigeminal neuralgiagrowth factor expressioncompression pressureelectron microscopeballoon shapepain relief
资助基金：This study was supported by a grant from Shengjing Hospital, China Medical University, China, (No.201010252)
论文发表日期：2014-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：11( 179-189 )
英文信息