Publications by authors named "P E Nisson"

Background: Aneurysms are one of the most common and yet devastating cerebrovascular diseases after rupture. Despite several decades of scientific advancements including the expansion of the endovascular capabilities and noninvasive imaging modalities, no medical treatment exists to date. This failure is likely largely attributed to the complex and multifactorial nature of aneurysm pathophysiology.

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Article Synopsis
  • The incidence of chronic subdural hematomas (cSDHs) is rising due to an aging population, with neurological weakness being a common symptom, but recovery rates for motor strength after treatment are not well-studied.
  • A study analyzed patients who had cSDH evacuations from 2013 to 2021, focusing on the presence and recovery of motor weakness in the upper and lower extremities, using statistical analysis on the collected data.
  • Results showed that older age, larger cSDH sizes, and unilateral cSDH presence increased the risk of motor weakness, but 68% of patients improved post-surgery, with 58% fully recovering; however, longer symptom duration and older age negatively affected recovery
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A major challenge within the academic literature on SDHs has been inconsistent outcomes reported across studies. Historically, patients have been categorized by the blood-product age identified on imaging (i.e.

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Background And Purpose: Spontaneous spinal CSF leaks typically cause orthostatic headache, but their detection may require specialized and invasive spinal imaging. We undertook a study to determine the value of simple optic nerve sheath MR imaging measurements in predicting the likelihood of finding a CSF-venous fistula, a type of leak that cannot be detected with routine spine MR imaging or CT myelography, among patients with orthostatic headache and normal conventional brain and spine imaging findings.

Materials And Methods: This cohort study included a consecutive group of patients with orthostatic headache and normal conventional brain and spine imaging findings who underwent digital subtraction myelography under general anesthesia to look for spinal CSF-venous fistulas.

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