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  • Title: Microsurgical Strategies for the Treatment of Compression Neuropathies Secondary to Vertebrobasilar Dolichoectasia: From Simple Decompression to Sling Transposition.
    Author: Barrow DL, Ellis JA.
    Journal: Oper Neurosurg (Hagerstown); 2019 Nov 01; 17(5):481-490. PubMed ID: 30590732.
    Abstract:
    BACKGROUND: Vertebrobasilar artery dolichoectasia may result in neural element compression anywhere along its course within the cervical region, the craniocervical junction or in the posterior fossa. The clinical syndromes most often observed include cranial neuropathy, bulbar dysfunction, myelopathy and cervical radiculopathy. When indicated, the operative techniques utilized to address vertebrobasilar artery dolichoectasia must be individually tailored, can be technically challenging, and have been rarely expounded. OBJECTIVE: To share selected cases that demonstrate the variety of pathological states caused by vertebrobasilar artery dolichoectasia as well as our experience in managing this condition. METHODS: Here we review examples of pathological impingement of neural elements compressed by ectasia within the vertebrobasilar arterial system throughout its anatomic course. The surgical techniques we have employed to alleviate the compression, including simple decompression as well as sling-assisted arterial transposition, are described. The evolution and refinement of our transposition technique are detailed. RESULTS: A wide range of pathological conditions may result from compression of neural structures throughout the course of the vertebrobasilar system. Compression of cervical nerve roots, the spinal cord, brainstem, and cranial nerves can be seen. Microsurgical management may be indicated in selected cases with gratifying results. CONCLUSION: Pathological compression of neural structures throughout the course of the vertebrobasilar system should be recognized. When indicated, microsurgical decompression must be tailored to the individual symptomology and the unique anatomic relationship in each case with the potential to prevent neurological worsening and, in many cases, improve functional outcome.
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