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Πέμπτη 7 Ιουνίου 2018

Rescue therapy with stent retrievers for thromboembolism during endovascular treatment of intracranial aneurysms

ABSTRACT Thromboembolism is the most frequent complication in endovascular treatment of intracranial aneurysms, causing disability and death. As stent retrievers have achieved high rates of arterial recanalization in the management of ischemic stroke, these devices were tested as rescue therapy of thromboembolism during aneurysm embolization. We retrospectively analyzed 10 consecutive patients with transprocedural arterial occlusion, treated with mechanical thrombectomy at a single center. Good angiographic recanalization was achieved in eight cases, mTICI 3, 2b and 2a in five, three and two patients, respectively, without additional complications or any deaths. Five patients showed complete recovery (mRS 0) and all patients showed improvement of disability (average mRS 1.1) over a mean follow-up period of 31 months. Eight patients had good clinical recovery, while two remained with deficits (mRS 3 and 4). The study found that the stent retriever is a valuable, rapid and effective tool for restoring blood flow, improving the safety of endovascular treatment.


RESUMO Tromboembolismo é a complicação mais frequente no tratamento endovascular de aneurismas cerebrais, podendo causar morte ou sequelas. Como os stent retrievers alcançaram altas taxas de recanalização arterial no tratamento do acidente vascular encefálico isquêmico, testamos esses dispositivos para tratar eventos tromboembólicos ocorridos durante a embolização de aneurismas. Foram analisados retrospectivamente 10 pacientes apresentando oclusão arterial transoperatória, tratados com trombectomia mecânica em um único centro. Obtivemos recanalização angiográfica em oito casos, mTICI 3, 2b e 2a em cinco, três e dois pacientes, respectivamente, sem complicações adicionais ou óbito. Cinco casos apresentaram recuperação completa (mRS 0) e todos os pacientes apresentaram melhora dos déficits (mRS médio 1.1) durante acompanhamento médio de 31 meses. Oito pacientes apresentaram boa recuperação clínica, enquanto dois permaneceram com déficits (mRS 3 e 4). O estudo concluiu que stents são uma ferramenta valiosa, rápida e eficaz para restaurar o fluxo sanguíneo, aumentando a segurança do tratamento endovascular.

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