Microsurgical treatment of spinal dural arteriovenous fistula:a single-center experience
Xu Jianguo
Zhu Weiwei
Li Wen
You Wanchun
Wu Jiang
Wang Zhong
Abstract：Objective To investigate the clinical characteristics,microsurgical treatment strategies,and clinical outcomes of spinal dural arteriovenous fistula(sDAVF).Methods The clinical data of 12 patients with sDAVF were analyzed retrospectively.The cohort included 9 males and 3 females,aged 33-75 years(median age 68 years).Among them,8 patients presented with subarachnoid hemorrhage,and 4 exhibited spinal cord dysfunction.All patients underwent digital subtraction angiography(DSA),revealing lesions on the left side in 3 cases and on the right side in 9,located at the craniocervical junction region in 8,and within the thoracolumbar spinal canal in 4.All cases were treated using a posterior median hemilaminectomy approach.Results All 12 sDAVF patients showed significant symptomatic improvement after treatment.DSA or MRI follow-up indicated the disappearance of the fistula or spinal cord vascular flow voids,meeting the criteria for clinical cure.Among them,10 patients(including 7 with lesions at the craniocervical junction)had no residual neurological deficits.One patient,who was in a moderate coma preoperatively,remained in a twilight state one year postoperatively and was unable to care for themselves,with a Karnofsky Performance Status(KPS)score of 40.Another patient had residual right lower limb muscle strength of grade V-and unstable gait one year after surgery.Conclusions Microsurgical treatment of sDAVF via a hemilaminectomy approach is safe,reliable,minimally invasive,and yields favorable therapeutic outcomes.
Keywords：arteriovenous fistulaspinal duralmicrosurgeryhemilaminectomy approachdigital subtraction angiography
Publication Date：2025-08-20
Online Publishing Date：2025-08-29(First online date of this platform, not the publication date of the document)
Pages：5( 457-461 )