Publications by authors named "Ricardo Otiniano-Sifuentes"
Carotid web (CW) is considered a variant of intimal fibromuscular dysplasia. CW represents between 9.4% and 37% of ischemic strokes that were initially misclassified as "cryptogenic.
View Article and Find Full Text PDFBackground Stroke burden characterization studies in low- and middle-income countries are scarce. We estimated the burden of stroke and its risk factors in Latin America and the Caribbean (LAC). Methods and Results We extracted GBD (Global Burden of Disease) study 2019 data on overall stroke and 3 subtypes (ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage) for 20 LAC countries.
View Article and Find Full Text PDFMoyamoya disease (MMD) is characterized by progressive stenosis of the distal portion of the internal carotid artery and its two main branches, the middle cerebral artery, and the anterior cerebral artery. Clinically, MMD can present with ischemic or hemorrhagic cerebrovascular events. The term Moyamoya syndrome (MMS) is used when the characteristic Moyamoya vasculopathy presents in association with other conditions such as Graves' disease (GD).
View Article and Find Full Text PDFArticle Synopsis
- Spinal dural arteriovenous fistula (SDAVF) is an abnormal connection between a blood vessel and a vein in the spine, leading to issues like spinal cord venous congestion and a variety of nonspecific sensory and motor symptoms.
- The document highlights three cases of SDAVF that presented differently; two cases were initially thought to be autoimmune conditions, while the third was misdiagnosed as chronic radiculopathy.
- All cases displayed distinct imaging features that helped confirm SDAVF, emphasizing the need to consider it in unusual presentations of radiculopathy or related spinal disorders, especially in comparison to demyelinating diseases.
Article Synopsis
- Reversible cerebral vasoconstriction syndrome (RCVS) often causes convexal subarachnoid hemorrhage and is marked by sudden, severe headaches known as thunderclap headaches, along with specific patterns of intracranial blood vessel narrowing.
- The condition can lead to serious complications, like intracerebral hemorrhage, seizures, and ischemic stroke.
- The case study discusses a 51-year-old woman diagnosed with RCVS who initially showed normal digital subtraction angiography, emphasizing the significance of recognizing thunderclap headaches and the need for follow-up angiographic studies if RCVS is suspected.
Carotid web (CW) is an atypical form of intimal fibromuscular dysplasia that occurs at the level of the carotid bulb. It is associated with ischemic strokes. The first report of this association was in 1967 and it is currently known to represent a significant percentage of cryptogenic stroke.
View Article and Find Full Text PDFAcute disseminated encephalomyelitis (ADEM) has been reported after coronavirus disease 2019 (COVID-19). In this review, we systematically included worldwide reported cases on this association. We included 30 case reports (pediatric and adults) and explored epidemiological and clinical evidence.
View Article and Find Full Text PDFAnti-LGI1 encephalitis is an autoimmune encephalitis with antibodies against leucine-rich glioma-inactivated 1 (LGI1), first described in 2010. It is a non-frequent and poorly understood entity that represents the second most frequent cause of autoimmune encephalitis. This entity is characterized by the presence of limbic encephalitis, hyponatremia, and faciobrachial dystonic seizures.
View Article and Find Full Text PDFA 50-year-old male patient who, after 3 months of cranial brain trauma, presented proptosis, chemosis and exophthalmos in the left eye. Subsequently, dysmetria develops in the left extremities and right hemiparesis. The diagnosis of carotid-cavernous fistula (FCC) associated with hyperintensity of signal in FLAIR and diffuse contrast uptake at the level of the pseudo tumoral protuberance and cerebellar peduncle was established.
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