Research Of Vascular Compression Factors On The Impact Of Hemifacial Spasm

Objective:Majority of scholars believed the cause of hemifacial spasm(HFS)is that the vascular compression or contact of the facial nerve root exit zone(REZ),promote microvascular decompression(MVD)treatment. But early in patients with HFS,or because the symptoms are not appropriate surgical treatment of aging,some authors advocate early symptomatic treatment.In this study,our task group looked at 52 cases of HFS patients treated by the electrical facial nerve stimulation,follow-up 3 months to 12 months and received satisfactory outcome,of which three cases of patients with examined by the three-dimensional fast imaging employing steady state acquisition(3D-FIESTA),found that there is vascular spasm side compression/contact with the facial nerve,this treatment is not the lifting of compression/contact the contrary,but effective.So,the cause of HFS is still a problem:1.Blood vessels and the facial nerve why at a certain age they appear spasm;2.Some HFS patients by imaging examination or even MVD intraoperative revealed no vascular compression or contact of the facial nerve REZ,but MVD treatment is effective;3.Neurovascular compression undischarged,but after the transcutaneus electric facial nerve stimulation the spasm symptoms disappeared;We are focusing on vascular compression factors on the impact of hemifacial spasm,to explore the pathogenesis of this disease and to explore new ways of treatment.Methods:1.For 30 cases of hemifacial spasm patients and 30 normal controls were analyzed retrospectively.Use 3D-FIESTA image from a different perspective on the relationship between the lateral nerves and blood vessels,to determine the relationship between them.2.We do perspective study for the pristine HFS patients who visited in the out-patient clinic of Neurology of First Affiliated Hospital of Dalian Medical University from April,2007 to April 2010.There are 52 patients with HFS were in our experiment use the transcutaneous electrical facial nerve stimulation and follow-up 3 months to 12 months to observe the therapeutic effect.Results:1.Case group affected side compared with the contralateral neurovascular contact or compression was no significant difference(P> 0.05);The affected side with the case group compared with the control group with bilateral neurovascular contact or compression was no significant difference(P>0.05);Case group and control group with bilateral compared with contralateral neurovascular contact or compression difference was not statistically significant(P> 0.05).2.The leather electrical nerve stimulation therapy a total of 52 were followed up for 3 months effective 42,effective rate of 80.77%;cured 27 people,the cure rate of 51.92%;null and void 10,the inefficiency of 19.20%;12 months follow-up of 43 people,efficiency of 82.70%;cured 29 people,the cure rate of 55.77%;invalid 9,no efficiency is 17.30%.Conclusion:1.Vascular compression or contact of the facial nerve REZ and hemifacial spasm is not explicit causation.2.MVD treatment should be re-examined3.Transcutaneous electrical facial nerve stimulation is effective for pristine HFS patients.