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1/126. Triple spontaneous cervical artery dissection.

    A 39-year-old healthy man had several transient ischaemic attacks suggesting left internal carotid artery (ICA) occlusion. There were no vascular risk factors and no preceding trauma. Colour-coded duplex sonography suggested a pseudo-occlusion of the left ICA, and cerebral angiography demonstrated dissection of the left ICA and both vertebral arteries. Angiography 6 months later was completely normal. This underlines the importance of four vessel angiography in young patients with dissections of cervical arteries. ( info)

2/126. Intra-arterial thrombolysis in a patient presenting with an ischemic stroke due to spontaneous internal carotid artery dissection.

    We describe a case of a 38-year-old male who presented with acute onset of right-sided hemiplegia and aphasia, who was transferred for emergent percutaneous intervention. Angiography revealed a dissection with total occlusion of the left internal carotid artery (ICA) with propagation of thrombus in the distribution of the middle cerebral artery (MCA). Therapy was directed at the MCA and not the ICA. Intra-arterial thrombolysis was performed on the M1 and M2 branches of the left middle cerebral artery, resulting in almost complete resolution of symptoms during the angiography procedure. heparin was continued postprocedure, and the patient was discharged home on warfarin and aspirin with minimal residual symptoms. ( info)

3/126. Stenting of the extracranial internal carotid artery for dissecting aneurysm.

    Symptomatic dissecting aneurysms of the extracranial internal carotid artery are not frequent. Medical treatment of these lesions can be ineffective and surgical options present high morbidity. We describe a case successfully treated with endovascular therapy, using a self-expanding stent. The advantages of the endovascular treatment and the rationale of the use of self-expanding stents are discussed. ( info)

4/126. Circulating antineutrophil autoantibodies in a child with isolated central nervous system vasculitis.

    An 8-year old girl with history of twisted neck and painful swelling on the left side of the neck was found to have malfunction of glossopharyngeal and hypoglossal nerves on the left side. magnetic resonance angiography revealed a giant aneurysm of the internal carotid artery surrounded by a widespread inflammatory tumor. cerebral angiography disclosed a large, false aneurysm with almost complete compression of the internal carotid artery. Circulating antineutrophil cytoplasmic autoantibodies (titer 1:2560) and high levels of antibodies against antiproteinase 3 were detectable. This observation indicates that these autoantibodies may be a diagnostic tool in children in whom an undiagnosed central nervous system inflammatory disease is present. ( info)

5/126. Spontaneous vertebral artery dissection mimicking acute vertigo. Case report.

    A patient with acute vertigo, and normal findings on neurologic examination, was found to have vertebral artery dissection (VAD). This case shows that the clinical picture of VAD can mimic vertigo of labyrinthine (i.e, peripheral) origin. ( info)

6/126. Central retinal artery occlusion associated with head or neck pain revealing spontaneous internal carotid artery dissection.

    PURPOSE: To report two cases of head or neck pain and central retinal artery occlusion associated with spontaneous dissection of the ipsilateral internal carotid artery. methods: case reports. RESULTS: We describe two cases of sudden visual loss caused by central retinal artery occlusion. Both cases were preceded by ipsilateral headaches or neck pain and tinnitus. The patient had no other neurological signs or history of trauma. In both cases, cerebral angiography revealed ipsilateral internal carotid artery dissection. CONCLUSION: Ipsilateral headache or neck pain with tinnitus preceding central retinal artery occlusion is highly suggestive of internal carotid artery dissection. early diagnosis and treatment may reduce the risk of hemispheric stroke. ( info)

7/126. Complex traumatic dissection of right vertebral and bilateral carotid arteries: a case report and literature review.

    A 27-year-old female motorcycle passenger was admitted with bruises and concussion after a motor-vehicle accident. After a lucid interval of several hours she became stuporous and progressed to an acute comatose state. Computed tomography demonstrated extensive cerebral ischaemia in the territory of the right middle cerebral artery. Angiography after transfer to the authors' hospital revealed dissections of both carotid arteries and of the right vertebral artery. The patient underwent surgical reconstruction of the left internal carotid artery with saphenous vein. The management of this patient is discussed and the literature reviewed. ( info)

8/126. moyamoya disease mimicking a spontaneous internal carotid artery dissection on Doppler ultrasound.

    moyamoya disease and spontaneous internal carotid artery dissections are rare conditions, but both tend to affect young adults with potentially devastating consequences. A 43-year-old non-Japanese patient presented with neurological symptoms, which, following carotid Doppler ultrasound and angiography, was labelled as being due to a spontaneous internal carotid artery dissection. Repeat imaging at 3 months showed normalisation of the carotid Doppler findings which coincided with the formation of "moyamoya" vessels on the angiogram. This case report illustrates the changes on carotid ultrasound in early moyamoya disease which may mimic the appearances of an internal carotid artery dissection and demonstrates the change of the spectral Doppler waveform that occurs with the formation of new vessels at the base of the brain. ( info)

9/126. Transcranial bypass for spontaneous intracranial carotid artery dissection--a case report.

    A case of spontaneous intracranial artery dissection (IAD) of the anterior circulation is reported. A 32-year-old man developed left hemiparesis with headache. Angiographies (AGs) showed progressive occlusion of the distal end of the right internal carotid artery. He underwent a superficial temporal artery-middle cerebral artery anastomosis 20 days after his initial symptoms. He improved gradually after operation. The prognosis and treatment of IAD are discussed. The authors conclude that cases with IADs of the anterior circulation should be followed up by cerebral AG or magnetic resonance angiography and that early bypass surgery should be considered to prevent massive cerebral infarction in some cases. ( info)

10/126. Bilateral internal carotid artery dissection due to trivial trauma.

    Internal carotid artery dissection (ICAD) is a known cause of unilateral headache and focal cerebral ischemic symptoms. Other symptoms include oculosympathetic paresis, facial pain, neck pain, subjective carotid bruits, and cranial nerve deficits. Traumatic dissection has an obvious precipitating incident preceding the neurologic or visual symptoms. An ICAD that occurs spontaneously or from trivial trauma usually lacks an obvious incident and thus requires awareness of its possibility for accurate detection and treatment. Dissections arise from a defect in the internal elastic lamina allowing penetration of blood into the arterial wall. Despite its low incidence, ICAD must be considered in young to middle-aged patients who present with headache and transient cerebral or retinal ischemic symptoms. This report describes a patient who had bilateral internal carotid artery dissections following trivial trauma. The etiologies, clinical manifestations, diagnostic modalities, treatment options, and outcomes of ICAD are discussed. ( info)
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