Ramsey Ashour

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The objective of this study is to characterize clinical features of joint and skeletal deformities in Parkinson's disease (PD), multiple system atrophy (MSA), and progressive supranuclear palsy (PSP). Clinical information including age, gender, presence of deformity, initial symptom side, neuropsychological and motor features, family history, and treatment(More)
BACKGROUND Although Onyx is widely used to embolize vascular lesions in adults, the safety and efficacy of this liquid embolic agent for use in children are not well studied. OBJECTIVE To report our experience using Onyx in pediatric patients for a variety of cranial and spinal vascular lesions and tumors to determine its procedural complication rates,(More)
OBJECT As endovascular techniques have become more advanced, preoperative embolization has become an increasingly used intervention in the management of meningiomas. To date, however, no consensus has been reached on the use of this technique. To clarify the role of preoperative embolization in the management of meningiomas, the authors conducted a(More)
A vertebral-epidural spinal arteriovenous fistula (AVF) is an abnormal arteriovenous shunt connecting the vertebral artery to the spinal epidural venous plexus, and may occur spontaneously or secondary to a variety of causes. These unique lesions are uncommon in adults and rarer still in children. Previous reports have grouped together a heterogeneous(More)
Striatal deformities of the hand and foot are abnormal postures that are common in patients with advanced Parkinson's disease (PD); they can present in the early stages of PD and in other parkinsonian disorders. Over a century ago, Charcot and Purves-Stewart recognised these deformities, which cause substantial functional disability and discomfort. The term(More)
OBJECT The authors assessed the safety and efficacy of embolization of head, neck, and spinal tumors with Onyx and determined the correlation between tumor embolization and intraoperative blood loss. METHODS The authors prospectively collected all head, neck, and spinal tumors embolized with Onyx at their institution over a 28-month period. Information on(More)
BACKGROUND Intracranial blister aneurysms are rare lesions that are notoriously more difficult to treat than typical saccular aneurysms. High complication rates associated with surgery have sparked considerable interest in endovascular techniques, though not well-studied, to treat blister aneurysms. OBJECTIVE To evaluate our experience using various(More)
BACKGROUND Spinal artery aneurysms are rare lesions that can occur in isolation or may be attributed to a variety of secondary causes. Chronic bilateral vertebral artery occlusion is an exceedingly rare cause of anterior spinal artery aneurysm, with only one previous case reported in the literature. Surgical treatment of ventrally located anterior spinal(More)
Giant ophthalmic aneurysms often present with visual loss secondary to mass effect upon the optic pathways and also carry a high risk of subarachnoid hemorrhage. Endovascular coil embolization is used in select cases to occlude these aneurysms, but this approach is less effective than direct surgical obliteration because of the high rate of aneurysm(More)
OBJECTIVE Idiopathic intracranial hypertension (IIH) is a syndrome characterized by increased intracranial pressure (ICP) in the absence of an identifiable cause, and if untreated, can result in permanent vision loss. In symptomatic IIH patients, cerebrospinal fluid (CSF) diversion can lower ICP and protect vision; however, currently used CSF diversion(More)