World Neurosurg
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Case Reports
Subarachnoid hemorrhage due to distal superior cerebellar artery dissection in Neurofibromatosis Type 1.
Neurofibromatosis type 1 (NF1) is a rare disease with an incidence of 1 in every 3000 births. Numerous studies have focused on the main function of NF1 as a tumor suppressor, whereas few have examined the cerebrovascular abnormalities observed in patients with NF1. It is worth noting that intracranial aneurysms are uncommon in this condition. ⋯ In the treatment of subarachnoid hemorrhage because of a distal SCA dissection in patients with NF1, NBCA glue embolization may be a safer option than microsurgery or coil embolization, in the acute phase, considering the possible vulnerability of the vessel wall, accessibility, morphology of the lesions, and the risk of developing unpredictable infarcts in the case of parent artery occlusion. However, regular reevaluation of the blood flow is necessary to monitor recurrence, given the rich collateral circulation.
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Neuronavigation has become a common means of placing pedicle screws in vertebral arthrodesis, because it reduces the incidence of complications related to poor screw positioning. ⋯ When coupled with fpCT, the ROSA Spine robot is a reliable, accurate means of performing lumbar pedicle screwing.
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Case Reports
Intracranial hypotension following traumatic brain injury: a diagnostic and therapeutic challenge.
Intracranial hypotension (IH) is a recognized cause of coma; however, the diagnosis is often challenging, especially in patients with superimposed traumatic brain injury. ⋯ Secondary IH can easily be missed in patients who have sustained a primary brain injury. In patients with a poor neurologic recovery, clinicians should rule out secondary IH as a potential cause, as immediate treatment can lead to profound clinical improvement.
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Traumatic spinal subdural hematoma involving the retroclival region and upper cervical spine is a rare pathology. To our knowledge, there have only been 2 prior cases in an adult trauma patient. We describe a patient with preexisting Chiari 1 malformation, who recently sustained a unilateral type 1 occipital condyle fracture with associated disruption of the tectorial membrane and transverse ligament, which returned with a retroclival subdural hematoma extending down to C7, causing spinal cord compression and symptomatic obstructive hydrocephalus. ⋯ Traumatic spinal subdural hematoma involving both the retroclival region and upper cervical spine can lead to bulbar signs and symptomatic obstructive hydrocephalus. There should be vigilance for this pathology in patients with high-energy craniocervical trauma. Disruption of the tectorial membrane and therapeutic anticoagulation may be risk factors. The clinical scenario can be complicated in the setting of a preexisting Chiari 1 malformation.
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The V2 segment of the vertebral artery (VA) typically runs through the transverse foramen of C2-C6. V2 injury may occur during anterior approaches to the cervical spine and can cause significant morbidity. We describe landmarks and microsurgical V2 repair techniques through the standard anterolateral cervical diskectomy approach. ⋯ Familiarity with relevant vascular surgical anatomy allows neurosurgeons to be prepared in cases of VA injury and may facilitate repair when the VA is injured during anterior cervical spine surgery.