4.1 Article

Ruptured intra-cranial arachnoid cysts: a case series from a single UK institution

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BRITISH JOURNAL OF NEUROSURGERY
卷 35, 期 4, 页码 462-466

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TAYLOR & FRANCIS LTD
DOI: 10.1080/02688697.2020.1862057

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Arachnoid cysts; intra-cranial cyst; chronic subdural haematoma; head injury

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Intracranial arachnoid cyst rupture is a recognized complication associated with head trauma. The majority of patients in this study required neurosurgical intervention, with most achieving full recovery. These findings support the importance of avoiding contact sports to reduce the risk of cyst rupture.
Introduction Intracranial arachnoid cysts are a common incidental finding; however presentation with cyst rupture is a recognised complication. Patients are advised to avoid contact sports to reduce the risk of cyst rupture but the risk of rupture is not currently known. The aim of this study is to describe a single institution's experience of managing ruptured intra-cranial arachnoid cysts. Method A retrospective case note review of all patients admitted to a single institution with a ruptured intra-cranial arachnoid cyst between 2005 and 2016 (inclusive). Medical records were reviewed for demographics, history of trauma, surgical treatment and radiological evidence of cyst rupture. Results Fourteen patients were identified for inclusion with an average age of 23.4 years (range 7-57) and 10 (71%) were male. Nine patients (64%) had a documented history of head trauma. Eleven patients (78.6%) required neurosurgical intervention which included hygroma/haematoma evacuation only (n = 5), haematoma evacuation with cyst fenestration (n = 4) and cyst fenestration/shunting only (n = 2). Twelve patients (85%) experienced full recovery and the remaining two had persisting headaches or neurological symptoms. Discussion Cyst rupture remains an uncommon cause for presentation with arachnoid cysts. However the majority are associated with head trauma and thus current advice to avoid contact sports seems justified.

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