RESUMO
Transient cortical blindness (TCB) is a rare but well-known complication of cerebral angiography. Its pathophysiology remains uncertain. We would like to report a case of TCB in a patient during a follow up vertebral angiogram for post-coil embolization of left posterior inferior cerebellar artery aneurysm. Patient's vision was resumed spontaneously within 24 hours after angiography, with no residual neurological deficit in subsequent clinical follow up. Multi-modality imaging evaluation including vertebral angiography, brain CT and MRI performed on same day are presented.
Assuntos
Humanos , Aneurisma , Angiografia , Artérias , Cegueira Cortical , Encéfalo , Angiografia Cerebral , Seguimentos , Imageamento por Ressonância MagnéticaRESUMO
Transient cortical blindness is a rare but well-recognized complication of cerebral angiography. A 62-year-old woman with unruptured cerebral aneurysm and a 16-year-old boy with cerebellar hemangioblastoma experienced blindness after diagnostic cerebral angiography and tumor embolization, and the symptom resolved after 1 hour and 36 hours later, respectively. We report two cases of this complication.
Assuntos
Adolescente , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cegueira , Cegueira Cortical , Angiografia Cerebral , Hemangioblastoma , Aneurisma IntracranianoRESUMO
Contrast agents are now commonly used for both diagnostic and therapeutic purposes. Complications of these agents include allergic reactions and damage to specific organs such as the kidney. But in rare cases, a temporary visual loss have been reported as our case. The 20-year-old male patient with 3cm sized cheek mass was transferred to our hospital. Initial CT findings showed a hemangioma. During follow-up survey, the mass enlarged and the pulsation was palpable. Indicating a vascular malformation, the carotid angiography checked and it was diagnosed as the A-V malformation. At 3 hours after angiography, he complained a progressive visual loss. 2 hours after onset of the visual loss, he lost his visual acuity completely. High dose steroid therapy started and he restored a complete visual acuity by 15 hours. The transient cortical blindness associated with angiography is not always due to the contrast agent. Clinical features of the cerebral embolism are identical to those of the neurotoxic effect of the contrast agent. So physicians should examine the patient carefully and other causes such as embolism, vasospasm and thrombotic event need consideration in the differential diagnosis. We experienced a case of the transient cortical blindness after the carotid angiography and review the literatures on this complication.
Assuntos
Humanos , Masculino , Adulto Jovem , Angiografia , Cegueira Cortical , Bochecha , Meios de Contraste , Diagnóstico Diferencial , Embolia , Seguimentos , Hemangioma , Hipersensibilidade , Embolia Intracraniana , Rim , Malformações Vasculares , Acuidade VisualRESUMO
Bronchial artery embolization (BAE) is a well accepted and effective treatment for massive and recurrent hemoptysis. However, several complications of BAE have been reported. Cortical blindness is defined as a loss of vision caused by bilateral occipital lobe lesions with normal pupillary light reflexes and a normal fundus. The reported incidence of transient cortical blindness (TCB) after cerebrovertebral angiography is approximately 1%. Two cases of TCB after BAE were found from a Medline search. Here, we report another case of TCB who was treated with BAE for a massive hemoptysis.
Assuntos
IncidênciaRESUMO
Bronchial artery embolization (BAE) is a well accepted and effective treatment for massive and recurrent hemoptysis. However, several complications of BAE have been reported. Cortical blindness is defined as a loss of vision caused by bilateral occipital lobe lesions with normal pupillary light reflexes and a normal fundus. The reported incidence of transient cortical blindness (TCB) after cerebrovertebral angiography is approximately 1%. Two cases of TCB after BAE were found from a Medline search. Here, we report another case of TCB who was treated with BAE for a massive hemoptysis.
Assuntos
IncidênciaRESUMO
A 42-year-old woman who had undergo a subtotal gastrectomy for stomach cancer, developed transient bilateral cortical blindness and hemiplegia after the removal of a subclavian vein catheter. A brain MRI, transcranial doppler sonogram and visual evoked potentials revealed no abnormalities. She returned to normal neurologic status 4 days after onset. There have been a few cases of transient cortical blindness after an insertion or removal of the subclavian vein catheter. However, caution should be taken for this possibility whenever the subclavian catheter is inserted or removed.