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小脑下后动脉切断的实验研究
Amputating of PICA experimental study
【摘要】 目的研究切断一侧小脑下后动脉(PICA)的可行性及在增加延髓后区术野显露方面的作用。方法将PICA分为4段(PICA1-PICA4),自PICA1-PICA3逐段切断实验。结果PICA1、PI-CA2切断后果严重,PICA3切断不仅安全可行,且能充分显露自同侧内耳门-导水管下端-对侧四室壁-枕大孔这一区域,无需切开小脑蚓部。结论PICA1、PICA2切断后果严重,PICA3切断安全可行且具有较大的临床意义,为临床开辟了新的手术入路。
【Abstract】 Objective To study the feasibility of amputating one side of PICA and its value in exposing theposterior area of medullar oblongata. Methods PICA were divided into 4 parts:PICA1~ PICA4. Apart from PICA4 they were emputated and tested separately. Results The experiment showed that the consequence to cut offPICA1 or PICA2 is very severe. However, to cut one side of PICA3 off is not only safe and feasible but also helpful tocompletely expose the space ranging from the CPA Of the same side to the lower outlet of aqueduct of midbrain to theopposite side of 4th ventricle to foraman magnum, without cuting off cerebellum vermis. Conclusions The consequence to amputate one side of PICA1 or PICA2 is very severe. However to cut off one side of PICA3 is not only safeand feasible but also of great value in clinical surgery.
- 【文献出处】 中华神经外科杂志 ,Chinese Journal of Neurosurgery , 编辑部邮箱 ,1999年02期
- 【分类号】R651.15
- 【被引频次】13
- 【下载频次】48