Publications by authors named "Mohamed Abouelleil"

Article Synopsis
  • Aneurysms of the anterior choroidal artery (AChA) are prevalent, most frequently found at the junction with the internal carotid artery (ICA).
  • Distal segment aneurysms of the AChA are rare, particularly in the intraplexal segment.
  • The report documents the first known case of a distal AChA aneurysm located in the intraplexal area.
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 Pituitary apoplexy is a rare condition that usually occurs in the setting of a pituitary adenoma. It can present with symptoms of visual disturbances, vertigo, headache, and neurological impairments. Computed tomography (CT) scans can aid in identifying pituitary apoplexy and ruling out other diseases.

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Laser interstitial thermal therapy (LITT) is a minimally invasive surgical option for the treatment of brain tumors introduced in 1983. The innovative technique was welcomed for its ability to access deep-seated supratentorial and posterior cranial fossa lesions. Surgical approaches to pineal region tumors are challenging and require a high degree of precision since the critical vasculature, such as the vein of Galen and precentral vein, in the area pose significant anatomical challenges to operating surgeons.

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Epilepsy is a neurological disorder that affects more than 70 million people globally. A considerable proportion of epilepsy is resistant to anti-epileptic drugs (AED). For patients with drug-resistant epilepsy (DRE), who are not eligible for resective or ablative surgery, neuromodulation has been a palliative option.

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Leveraging from the interventional cardiology experience, the transradial access (TRA) for neurointervention has also started to become more used for both diagnostic and therapeutic procedures. A growing body of evidence is showing a superiority of the TRA compared with the conventional transfemoral access (TFA) in terms of access site complications (ACSs), patient satisfaction and preference, hospital length of stay, and cost. Outcomes via the transradial are noninferior, and at times superior, in select neuroendovascular procedures.

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Background: Novel methods in predicting survival in patients with spinal metastases may help guide clinical decision-making and stratify treatments regarding surgery vs palliative care.

Objective: To evaluate whether the frailty/sarcopenia paradigm is predictive of survival and morbidity in patients undergoing surgery for spinal metastasis.

Methods: A total of 271 patients from 4 tertiary care centers who had undergone surgery for spinal metastasis were identified.

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Background: Predicting survival of patients with spinal metastases would help stratify treatments from aggressive to palliation.

Objective: To evaluate whether sarcopenia predicts survival in patients with lung, breast, prostate, or multiple myeloma spinal metastases.

Methods: Psoas muscle measurements in patients with spinal metastasis were taken from computed tomography scans at 2 time points: at first episode of stereotactic body radiation therapy (SBRT) and from the most recent scan available.

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Background: Intraspinal dermoid tumors are usually rare benign growths that occur as a result of defects during neural tube formation. They make up less than 1% of tumors in the spine and are associated with spinal dysraphisms or sinus tracts. Although rare, malignant transformation into squamous cell carcinoma has been previously reported.

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Anterior lumbar interbody fusion (ALIF) is commonly utilized for surgical management of degenerative lumbar pathology. Although it is a reasonably safe procedure, it can potentially lead to major complications in case of neurovascular injuries. Occurrence of lymphocele after an ALIF is however rare.

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Background: Nearly 33,600 people die each year in the United States as a result of gunshot wounds (GSWs). Penetrating craniocerebral GSWs are often fatal with a nearly 70% death rate at the scene of the trauma. Overall combined mortality rate for patients who die at the scene or at the hospital is almost 91%.

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Atlanto-occipital dislocation (AOD) is a craniocervical injury that has serious neurological consequences and is often fatal. High-speed blunt trauma, such as motor vehicle accidents, that extend and put traction on the head can cause this injury. The current recommendation for diagnosis is to measure the condyle-C1 interval (CCI) using a computed tomography (CT) scan in the coronal plane and more recently in the sagittal plane.

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Objectives: Embolization reduces flow in cerebral arteriovenous malformations (AVMs) before surgical resection, but changes in pulsatility and resistance indices (PI, RI) are unknown. Here, we measure PI, RI in AVM arterial feeders before and after embolization/surgery.

Methods: Records of patients who underwent AVM embolization and surgical resection at our institution between 2007 and 2014 and had PI, RI, and flows obtained using quantitative magnetic resonance angiography were retrospectively reviewed.

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