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2.
Neurosurgery ; 87(1): 104-111, 2020 07 01.
Article in English | MEDLINE | ID: mdl-31504821

ABSTRACT

BACKGROUND: The safety and efficacy of the first generation of the Pipeline Embolization Device (PED; Medtronic Inc) have been proven in large case series. Ischemic events are one of the most common complications following treatment of aneurysms with flow diverters. The new PED Flex with Shield technology (PED Shield; Medtronic Inc) was introduced to minimize the rate of complications. OBJECTIVE: To evaluate the outcomes of patients harboring aneurysms treated with the PED Shield. METHODS: This was an observational, prospective, single-arm multicenter study of patients treated with the PED Shield. The primary safety endpoint was the absence of major neurological complications and death. The secondary effectiveness endpoint was angiographic occlusion at 6 and 12 mo. Technical complications were also reported. RESULTS: Between November 2017 and December 2018, 151 patients from 7 centers with 182 aneurysms were enrolled. The mean aneurysm size was 7.0 mm; 27 (14.8%) aneurysms were large, and 7 (3.8%) were giant. In 141 of 151 patients (93.4%), the primary endpoint was reached. The overall rate of periprocedural complications was 7.3%. Of the aneurysms, 79.7% met the study's secondary endpoint of complete occlusion at 6 mo and 85.3% at 12 mo. CONCLUSION: The PED Shield is a safe and effective treatment for intracranial aneurysms. The results regarding total occlusion and ischemic complications did not differ from those obtained in case series using previous versions of the PED. Long-term follow-up and comparative studies are required to provide stronger conclusions regarding the reduced thrombogenicity of this device.


Subject(s)
Blood Vessel Prosthesis , Embolization, Therapeutic/methods , Intracranial Aneurysm/diagnostic imaging , Intracranial Aneurysm/therapy , Patient Safety , Adult , Aged , Blood Vessel Prosthesis/adverse effects , Cerebral Angiography/methods , Embolization, Therapeutic/adverse effects , Female , Follow-Up Studies , Humans , Male , Middle Aged , Prospective Studies , Treatment Outcome
3.
J. vasc. bras ; 7(2): 163-166, jun. 2008. ilus
Article in English, Portuguese | LILACS | ID: lil-488573

ABSTRACT

Os tumores do corpo carotídeo são neoplasias raras, que se originam dos pequenos órgãos quimio e barorreceptores localizados na adventícia da bifurcação da artéria carótida comum. Constituem-se uma doença de grande interesse para o cirurgião vascular, na medida em que crescem aderidos à adventícia dos vasos que compõem essa bifurcação. Por isso, sua cirurgia requer não só o conhecimento anatômico da região, mas também perfeito reconhecimento das técnicas de reconstrução vascular. Representam um problema especial quanto a seu manejo, devido à sua rica vascularização e intimidade com estruturas nobres da região cervical, como nervos e grandes vasos. Neste caso, apresentamos um homem com um tumor de corpo carotídeo aderido à carótida direita, diagnosticado por punção biópsia e tratado em dois tempos, sendo o primeiro por tratamento endovascular, realizando embolização percutânea do tumor, e, no segundo, a ressecção cirúrgica do mesmo, o que evidencia o tratamento combinado, segundo atual literatura.


Carotid body tumors are rare neoplasms originating from the small chemo- and baroreceptors located in the adventitia of the common carotid artery bifurcation. They are a disease of great interest for vascular surgeons, given that they grow adhered to the adventitia of vessels comprising this bifurcation. For that, their surgery requires not only anatomical knowledge of the region, but also perfect familiarization with vascular repair techniques. Carotid body tumors are a particular problem as to their management, due to rich vascularization and intimacy with important structures of the cervical region, such as nerves and large vessels. We report on a male patient with carotid body tumor adhered to the right carotid artery, diagnosed by puncture biopsy and treated at two different time periods: first by endovascular treatment, with percutaneous embolization of the tumor; and later by surgical resection, which represents the combined treatment suggested in the current literature.


Subject(s)
Humans , Male , Adult , Paraganglioma/surgery , Paraganglioma/classification , Paraganglioma/complications , Carotid Body Tumor/surgery , Carotid Body Tumor/classification , Carotid Body Tumor/complications , Ultrasonography
4.
Radiol. bras ; 28(5): 271-275, set.-out. 1995. ilus
Article in Portuguese | LILACS | ID: lil-423004

ABSTRACT

A síndrome do roubo da subclávia é doença cérebro-vascular incomum, que pode ser tratada por meio de técnicas endovasculares. São apresentados três casos dessa entidade, submetidos a angioplastia percutânea transluminar, fazendo-se breve revisão da literatura. Dois pacientes permanecem assintomáticos 23 e 30 meses, respectivamente, após o tratamento. Houve recidiva da lesão em um dos pacientes, 12 meses após o procediemnto. Pela baixa morbidade e pelos bons resultados técnicos e clínicos a angioplastia percutânea transluminar deve ser o método de escolha para o tratamento da síndrome do roubo da subclávia.


Subject(s)
Middle Aged , Male , Female , Humans , Angioplasty, Balloon , Subclavian Steal Syndrome , Subclavian Steal Syndrome/diagnosis , Subclavian Steal Syndrome/therapy , Constriction, Pathologic
5.
Rev. imagem ; 12(1/2): 1-8, jan.-jun. 1990. ilus, tab
Article in Portuguese | LILACS | ID: lil-101108

ABSTRACT

Os insulinomas pancreáticos säo tumores que se manifestam precocemente devido a intensa produçäo hormonal. Alteraçöes microscópicas, como a hiperplasia de células beta e a nesidioblastose, também säo causas de hiperinsulinismo. É essencial a localizaçäo pré-operatória das lesöes, evitando-se pancreatectomias cegas, desnecessárias ou insuficientes. É apresentada a experiência com 26 pacientes portadores de hiperinsulinismo, em que seis submeteram-se à ultrasonografia, nove à tomografia computadorizada, 25 à angiografia e 16 à dosagem de insulina em sangue colhido de veias pancreáticas, isoladamente ou em combinaçäo, na tentativa de localizar as lesöes. Desses métodos, a cateterizaçäo seletiva de veias pancreáticas com obtençäo de amostras para drenagem hormonal mostrou ser a forma mais sensível de localizar as lesöes, algumas delas näo palpaveis durante a cirurgia


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Hyperinsulinism/diagnosis , Angiography , Hyperinsulinism/blood , Hyperinsulinism/pathology , Insulinoma/diagnosis , Pancreatic Neoplasms/diagnosis , Pancreas/blood supply , Tomography, X-Ray Computed
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