目的 分析微血管减压术治疗原发性三叉神经痛术中岩静脉的保护作用。方法 选取我院于2016年4月-2017年4月我 院收治的60例原发性三叉神经痛患者作为研究对象，所有患者均应用微血管减压术进行治疗，将所选入的60例患者 随机分为两组研究组与对照组，每组30例，对照组患者在术中应用电凝法将患者的岩静脉与所属支切断，观察组患 者在术中保护岩静脉与所属支，对比两组患者术后不良反应发生情况。结果 两组患者均对术后结果较为满意，对 照组患者中发生轻度不良反应者24例(80.00%)，严重不良反应者2例(6.67%)；观察组患者术后出现轻度不良反应者 16例(53.33%)，严重不良反应者0例(0%)，两组患者的不良反应发生率比较差异，存在统计学意义(P<0.05)。结论 应用微血管减压术治疗原发性三叉神经痛术患者在术中给予岩静脉保护，可使患者的不良反应发生率明显降低，避 免患者出现严重不良反应。

Objective To analyze the clinical protection of petrosal vein during the microvascular decompression of primary trigeminal neuralgia. Methods 60 patients with primary trigeminal neuralgia treated from April 2016 to April 2017 in our hospital were selected. All the patients received the microvascular decompression. The subjects were randomly divided into study group and control group, 30 cases each group. During surgery, the control group received the electrocoagulation to cut off the petrosal vein with the affiliated branches; the observation group took the protection strategies on the petrosal vein and the affiliated branches. The adverse event rate for two groups was compared. Results After surgery, both of the groups were quite satisfactory. The control group had 24 cases with mild adverse reactions (80.00%) and 2 cases with serious adverse reactions (6.67%), the observation group had 16 cases with mild adverse reactions (53.33%) and 0 case with serious adverse reactions (0%) (P<0.05). Conclusion During the microvascular decompression of primary trigeminal neuralgia, the protection strategy of petrosal vein can greatly reduce the adverse event rate and avoid the serious adverse reactions