PT - JOURNAL ARTICLE AU - Louise Segan AU - Fiona Permezel AU - Wei Ch’ng AU - Ian Millar AU - Mark Brooks AU - Matt Lee-Archer AU - Geoffrey Cloud TI - Cerebral arterial gas embolism from attempted mechanical thrombectomy: recovery following hyperbaric oxygen therapy AID - 10.1136/practneurol-2017-001828 DP - 2018 Apr 01 TA - Practical Neurology PG - 134--136 VI - 18 IP - 2 4099 - http://pn.bmj.com/content/18/2/134.short 4100 - http://pn.bmj.com/content/18/2/134.full SO - Pract Neurol2018 Apr 01; 18 AB - Cerebral arterial gas embolism is a recognised complication of endovascular intervention with an estimated incidence of 0.08%. Its diagnosis is predominantly clinical, supported by neuroimaging. The treatment relies on alleviating mechanical obstruction and reversing the proinflammatory processes that contribute to tissue ischaemia. Hyperbaric oxygen therapy is an effective treatment and has multiple mechanisms to reverse the pathological processes involved in cerebral arterial gas embolism. Symptomatic cerebral arterial gas embolism is a rare complication of endovascular intervention for acute ischaemic stroke. Although there are no previous descriptions of its successful treatment with hyperbaric oxygen therapy following mechanical thrombectomy, this is likely to become more common as mechanical thrombectomy is increasingly used worldwide to treat acute ischaemic stroke.