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1.
Neurocirugia (Astur) ; 18(3): 232-7, 2007 Jun.
Artigo em Espanhol | MEDLINE | ID: mdl-17622462

RESUMO

Dissecting aneurysms affecting exclusively to the posterior inferior cerebellar artery (PICA) are rare entities. Depending on the dissecting plane of the arterial wall, the clinical manifestations are subarachnoid hemorrhage (SAH) due to rupture or ischemia caused by stenosis or occlusion. Angiographic findings are fusiform dilatation with a narrowing of various degrees proximal to and distal to the fusiform lesion. Magnetic resonance imaging (MRI) can be useful demonstrating the intramural hematoma. We report a 47-year-old man who suffered from SAH. He was neurologicaly intact and vertebral angiography demonstrated and fusiform aneurysm at the origin of the left PICA. He was operated by trapping of the dissecting segment. The patient's postoperative course was uneventful despite of severe vasospasm showed in follow up angiography. Aggressive treatment has been recommended for dissecting aneurysms of the PICA and specially for those presenting with SAH. Both the surgical and endovascular procedures are effective and with good results.


Assuntos
Dissecção Aórtica , Cerebelo/irrigação sanguínea , Hemorragia Subaracnóidea , Dissecção Aórtica/complicações , Dissecção Aórtica/diagnóstico , Dissecção Aórtica/cirurgia , Cerebelo/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Hemorragia Subaracnóidea/etiologia , Hemorragia Subaracnóidea/cirurgia , Tomografia Computadorizada por Raios X
2.
Neurocir. - Soc. Luso-Esp. Neurocir ; 18(3): 232-237, mayo-jun. 2007. ilus
Artigo em Es | IBECS | ID: ibc-70316

RESUMO

Los aneurismas disecantes que afectan de formaexclusiva a la arteria cerebelosa posteroinferior (PICA)son muy raros. Su manifestación clínica dependerá dellugar de la pared arterial en que se produzca la disección,produciendo hemorragia subaracnoidea (HSA)o bien oclusión del vaso e isquemia. El diagnóstico delaneurisma se realiza en el estudio angiográfico mostrándosecomo una dilatación fusiforme de la arteria ocomo grados variables de estrechamiento y dilatacióndel vaso. La resonancia magnética (RM) puede ser degran ayuda detectando el hematoma intramural.Presentamos un enfermo de 47 años que sufrió unaHSA que toleró bien. El estudio angiográfico mostróuna dilatación fusiforme de la porción anterobulbarde la PICA. El paciente fue intervenido realizándoseuna exclusión del segmento de la PICA afecto, colocandoun clip proximal y otro distal al aneurisma. Elpostoperatorio transcurrió sin incidencias a pesar depresentar en la angiografía de control un vasoespasmomuy notable de todo el territorio vertebrobasilar.Los aneurismas disecantes de la PICA y fundamentalmentelos que se presentan con HSA debense tratados a fin de prevenir el resangrado. Tanto losprocedimientos quirúrgicos como los endovasculares sehan revelado eficaces y con buenos resultados


Dissecting aneurysms affecting exclusively to theposterior inferior cerebellar artery (PICA) are rareentities. Depending on the dissecting plane of thearterial wall, the clinical manifestations are subarachnoidhemorrhage (SAH) due to rupture or ischemiacaused by stenosis or occlusion. Angiographic findingsare fusiform dilatation with a narrowing of variousdegrees proximal to and distal to the fusiform lesion.Magnetic resonance imaging (MRI) can be usefuldemonstrating the intramural hematoma.We report a 47-year-old man who suffered fromSAH. He was neurologicaly intact and vertebral angiographydemonstrated and fusiform aneurysm at theorigin of the left PICA.He was operated by trapping of the dissecting segment.The patient's postoperative course was uneventfuldespite of severe vasospasm showed in follow upangiography.Aggressive treatment has been recommended fordissecting aneurysms of the PICA and specially forthose presenting with SAH. Both the surgical andendovascular procedures are effective and with goodresults


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Dissecção Aórtica/diagnóstico , Dissecção Aórtica/cirurgia , Hemorragia Subaracnóidea/diagnóstico , Hemorragia Subaracnóidea/cirurgia , Cerebelo/irrigação sanguínea , Tomografia Computadorizada por Raios X
3.
Neurocirugia (Astur) ; 13(6): 486-90; discussion 489-90, 2002 Dec.
Artigo em Espanhol | MEDLINE | ID: mdl-12529779

RESUMO

Acute postraumatic subdural hematoma is known to have bad prognosis. Traditionally, its treatment consisted in urgent surgical evacuation. Rapid spontaneous resolution of the hematoma has been infrequently observed. We report a case of a patient with an acute traumatic subdural hematoma which disappeared without surgery. CT-scan showed a left-sided subdural hematoma with marked mass effect. A low density layer, which implied involvement of CSF in the subdural space, was observed between the hematoma and the inner wall of the skull. We think that the spontaneous resolution of the hematoma was due to the dilution and washing-out by the CSF through an arachnoid tear. Another suggested mechanism in the literature is blood redistribution in the subdural space. Selected patients with an acute subdural hematoma can be managed with conservative treatment.


Assuntos
Hematoma Subdural Agudo/fisiopatologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Hematoma Subdural Agudo/diagnóstico por imagem , Humanos , Remissão Espontânea , Tomografia Computadorizada por Raios X
4.
Artigo em Es | IBECS | ID: ibc-26295

RESUMO

El hematoma subdural agudo es una entidad clínica de muy mal pronóstico y el tratamiento ha consistido clásicamente en su evacuación quirúrgica urgente. Son muy pocos los casos descritos en los que el hematoma se ha resuelto de forma espontánea y rápida. Presentamos una paciente que sufrió un traumatismo craneal y fue diagnosticada de un hematoma subdural agudo que desapareció sin intervención. En la TC el hematoma provocaba un notable efecto de masa y tenía en su periferia una hipodensidad que sugería la presencia de LCR en el espacio subdural. El mecanismo de resolución del hematoma creemos se debió al lavado del mismo por el LCR a través de una rotura en la aracnoides. Otro mecanismo de desaparición del hematoma descrito en la literatura es por redistribución de la sangre en el espacio subdural, pero ésto no pudo confirmarse en nuestro caso. En algunos pacientes con hematoma subdural agudo, que reunan determinados criterios, se podría adoptar una actitud inicial conservadora (AU)


Assuntos
Idoso de 80 Anos ou mais , Idoso , Feminino , Humanos , Tomografia Computadorizada por Raios X , Remissão Espontânea , Hematoma Subdural Agudo
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