|Visual Field Preservation in Surgery of Occipital Arteriovenous Malformations: A Prospective Study|
|Tong, Xianzeng1,2,3,4; Wu, Jun1,2,3,4; Lin, Fuxin1,2,3,4; Cao, Yong1,2,3,4; Zhao, Yuanli1,2,3,4; Jin, Zhen5; Ning, Bo1,2,3,4; Zhao, Bing1,2,3,4; Li, Yu6; Wang, Lijun1,2,3,4; Zhang, Shuo1,2,3,4; Wang, Shuo1,2,3,4; Zhao, Jizong1,2,3,4|
|关键词||Arteriovenous malformation Diffusion tensor imaging Functional MRI Microsurgery Neuronavigation Visual field deficits|
|WOS标题词||Science & Technology|
|类目[WOS]||Clinical Neurology ; Surgery|
|研究领域[WOS]||Neurosciences & Neurology ; Surgery|
|关键词[WOS]||VASCULAR MALFORMATIONS ; HOMONYMOUS HEMIANOPIA ; BRAIN ; NEURONAVIGATION ; RADIOSURGERY ; STIMULATION ; HEMIFIELD ; MIGRAINE ; PATHWAY|
OBJECTIVE: We reviewed our prospective study of patients with occipital arteriovenous malformations (AVMs) to assess whether the display of optic radiation diffusion tensor imaging (DTI) during neuronavigation-guided surgery can reduce the severity of postoperative visual field deficits (VFDs) and to evaluate the factors associated with visual field preservation.
METHODS: Forty-six consecutive patients with occipital AVMs were randomized in our study. DTI of the optic radiation was displayed during neuronavigation surgery in 24 patients. The other 22 patients were treated surgically without neuronavigation. Modified Rankin Scale (mRS) scores and visual fields were evaluated preoperatively, immediately after surgery, and at the last follow-up.
RESULTS: The patients′ baseline characteristics and AVM features were statistically similar between the 2 surgical groups. The postoperative obliteration rate was 100%. The postoperative mRS scores did not differ between the 2 groups (P > 0.05). Preexisting VFDs were more common (P =0.00004) in patients who bled than in those with unruptured AVMs. The application of DTI-incorporated neuronavigation reduced the frequency and severity of postoperative VFDs (P =0.013 and 0.001, respectively). Visual fields were more likely to be preserved in patients with an AVM > 5 mm from the optic radiation (P =0.025).
CONCLUSIONS: A history of hemorrhage is an independent risk factor for VFDs associated with occipital AVMs. Although not showing superiority in postoperative mRS, functional MRI navigation-guided surgery may help to radically resect occipital AVMs and preserve patient visual fields. A 5-mm distance from the optic radiation may be a suitable safety margin for visual field preservation.
|作者单位||1.China Natl Clin Res Ctr Neurol Dis, Beijing, Peoples R China|
2.Beijing Inst Brain Disorders, Ctr Stroke, Beijing, Peoples R China
3.Beijing Key Lab Translat Med Cerebrovasc Dis, Beijing, Peoples R China
4.PLA, Hosp 306, Med Imaging Ctr, Beijing, Peoples R China
5.Capital Med Univ, Beijing Tiantan Hosp, Dept Neurosurg, Beijing, Peoples R China
6.Peking Univ, Hosp 1, Dept Pediat Surg, Beijing 100871, Peoples R China
|Tong, Xianzeng,Wu, Jun,Lin, Fuxin,et al. Visual Field Preservation in Surgery of Occipital Arteriovenous Malformations: A Prospective Study[J]. WORLD NEUROSURGERY,2015,84(5):1423-1436.|
|APA||Tong, Xianzeng.,Wu, Jun.,Lin, Fuxin.,Cao, Yong.,Zhao, Yuanli.,...&Zhao, Jizong.(2015).Visual Field Preservation in Surgery of Occipital Arteriovenous Malformations: A Prospective Study.WORLD NEUROSURGERY,84(5),1423-1436.|
|MLA||Tong, Xianzeng,et al."Visual Field Preservation in Surgery of Occipital Arteriovenous Malformations: A Prospective Study".WORLD NEUROSURGERY 84.5(2015):1423-1436.|