Compressive myelopathy secondary to posthemorragic arachnoiditis: Case report and literature review.

Clinical Neurology and Neurosurgery
María López GutiérrezVíctor Rodríguez Berrocal

Abstract

Spinal arachnoiditis is an arachnoid inflammatory process frequently caused by infection or spinal surgery; there are different degrees of severity, including arachnoid thickening and severe adhesive lesions that can lead to the development of arachnoid cysts. Non-traumatic subarachnoid haemorrhage (ntSAH) is a relatively uncommon cause of arachnoiditis; further complication with spinal cord compression (SCC) is even more unusual. we describe a 70-year-old female, with SCC caused by arachnoid cysts. Her medical past history was relevant for an episode of ntSAH after rupture of a posterior communicating artery aneurysm, eight months prior to the onset of symptoms. We also present a literature review of previous published cases. we selected 23 articles with 24 case reports. A noticeable female predominance (11:1) was observed. It is more common between the fourth and fifth decades. The majority of cases (58 %) were secondary to aneurysmal SAH due to rupture of a posterior circulation aneurysm. The most common location of the cyst is in the cervicothoracic spine. The average time between the initial bleeding and symptom development is 3-6 months. The most frequently described treatment is laminectomy and marsupialization of the cy...Continue Reading

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