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Coronavirus disease 2019 is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); it has recently been associated with several hematologic disorders. A 4-year-old boy who had SARS-CoV-2 10 months prior was admitted to the emergency department of our hospital with seizures. His SARS-CoV-2 IgG II level was 885.7 AU/mL. Neuroimaging with cranial computed tomography after admission showed abnormal images of the venous sinus, but this was not sufficient to diagnose cerebral venous sinus thrombosis. Therefore, magnetic resonance imaging and digital subtraction angiography were conducted, which confirmed the diagnosis. He was treated with thrombectomy and anticoagulation drugs, and the clinical outcomes were satisfactory. Because our patient had a medical history of SARS-CoV-2 and exhibited no other risk factors, we present this case as evidence of a potential association between cerebral venous sinus thrombosis and SARS-CoV-2.

Top-of-the-basilar artery occlusion frequently causes infarction of the midbrain, thalamus, and portions of the temporal and occipital lobes as the vascular supply of these regions comes from the posterior communicating and posterior cerebral arterial tributaries of the basilar artery. Clinical signs include an array of visual, oculomotor, and behavioral abnormalities, usually without prominent motor dysfunction, which makes diagnosis challenging for those inexperienced with these sign. We describe a 59-year-old male presenting with acute ischemic stroke due to top-of-the-basilar artery occlusion. Despite attempting several paraclinical examinations relating the sudden coma with Glasgow Coma Scale of 6 points, the neuroimaging detected the large vessel occlusion that was difficult to recognize. After confirming top-of-the-basilar artery occlusion, the recanalization was realized immediately. The patient was discharged with good clinical recovery.

ABSTRACT: Current treatment options for high-risk patients with severe carotid artery stenosis include transcarotid artery revascularization, transfemoral carotid artery stenting, and carotid endarterectomy. Transfemoral carotid artery stenting is associated with high perioperative stroke risk, and recent studies and trials have identified transcarotid artery revascularization as a new technique able to minimize the stroke risk associated with high-risk procedures. Moreover, the transcervical approach allows easy access to the carotid artery in cases with an anatomically tortuous aortic arch. Therefore, determining the optimal approach to achieve arterial access during carotid stenting is important for successful procedures and positive outcomes. We report a clinical case of ischemic stroke due to severe stenosis of the left internal carotid artery indicated for stent deployment. After transfemoral carotid artery stenting failure, the patient's symptoms progressed from minor stroke to hemiplegia and Broca's aphasia. The transcervical approach was used to perform transcarotid artery revascularization after several days. The procedure was both safe and prevented recurrent stroke occurrence. Although transfemoral access is the classic approach used for carotid stenting, the transcervical approach can be used as an alternative and safe choice in cases with complex vascular anatomy, such as the one described here.

Head and neck arteriovenous malformations are rare, congenital, and high-flow vascular malformations characterized by abnormal communication between feeding arteries and draining veins without intervening capillaries. Arteriovenous malformations are considered the most dangerous type of vascular malformation because progressive symptoms and infiltration can result in potentially life-threatening consequences. Left untreated, arteriovenous malformations can cause significant cosmetic deformities, severe bleeding, and high-output cardiac failure associated with arteriovenous shunting. The effective treatment of arteriovenous malformations located in the head and neck region is quite challenging due to high rates of recurrence and potentially lethal complications. We describe a case presenting with large arteriovenous malformations in the face and neck. Despite attempting several treatments, including external carotid artery ligation and embolization with liquid embolic agents, the patient continued to experience recurrence and symptoms of bleeding and pain. After admission, reconstructive plastic surgery was performed, supplemented by percutaneous direct puncture embolization, using glue injected into the venous and transarterial embolization. The patient was discharged with clinical recovery. Digital subtraction angiography remains the gold standard for assessing symptomatic and aggressive arteriovenous malformations, both before and after treatment. The treatment of head and neck arteriovenous malformations often requires a multidisciplinary approach to achieve the best clinical results.

Aneurysms in the posterior circulation and distal sites are more common among the pediatric population than among adults, with a male predominance. Symptoms of an aneurysm in the posterior circulation can include a stiff neck or severe headache due to a ruptured aneurysm, whereas an unruptured aneurysm can cause mass effects or neurological deficits. However, in children, the complete occlusion of the aneurysm while preserving the flow of the main artery can be difficult to achieve when attempting a stent-assisted coil embolization technique. A 25-month-old girl presented with left hemiparesis and was diagnosed with a basilar artery aneurysm 10 months prior, but she did not receive any specific treatment. No history of trauma and no significant familial history were recorded. Angiography showed a fusiform aneurysm on the basilar artery trunk, which was successfully occluded using stent-assisted coiling following dual antiplatelet therapy with clopidogrel and aspirin. She was discharged with the complete restoration of motor deficits.