Publications by authors named "Mohammad Almohammad"

Background: Endovascular thrombectomy (EVT) for very distal vessel occlusion (DVO) stroke is increasingly performed but there is insufficient evidence on the efficacy and safety of distal EVT techniques. We hypothesized that the technique of soft partial release of non-aggressive stent retrievers (SPORNS) reduces friction on the perforating vessels during thrombectomy and thereby reduces bleeding complications.

Methods: Retrospective study including consecutive DVO patients who were treated with the SPORNS technique between 1 January 2022 and 31 December 2022 at two tertiary stroke centers.

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Article Synopsis
  • Progressive supranuclear palsy (PSP) is a rare type of Parkinson's syndrome that affects eye movement, balance, and cognitive function, exhibiting specific brain atrophy patterns that differ from typical Parkinson's disease (PD).
  • This study aimed to compare the metabolic profile of PSP patients with healthy controls and PD patients using advanced whole-brain magnetic resonance spectroscopic imaging (wbMRSI).
  • Results showed a significant decrease in N-acetyl-aspartate (NAA) levels across all brain lobes in PSP patients, indicating more neuronal degeneration and cerebral atrophy compared to PD, but further research is necessary to validate these findings in clinical settings.
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Cochlear implantation surgery in the rare cases of incomplete partition type III is constrained by intraoperative difficulties that result from the deformed cochlea. Our case study describes the use of a supporting fascia pad that served as a track to preserve the direction of the electrode during insertion into the cochlear lumen.

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Background: We aim to report a rare case of a herniated mastoid segment of the facial nerve that was accidently discovered during cochlear implantation surgery and how altering the surgery plan could achieve the implantation while preserving the nerve.

Case Presentation: A four-year-old girl presented with profound bilateral sensorineural hearing loss that did not completely resolve after 2 years of using hearing aids was scheduled for cochlear implantation surgery in the right ear. During surgery, a herniated mastoid segment of the facial nerve took an anterior course and obstructed the access to the round window.

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Purpose: To investigate the role of the diffusion weighted imaging (DWI) in the acute dissection of internal carotid artery (ICA) and vertebral artery (VA) and assessing the length of intramural hematoma (IMH), caused by dissection.

Methods: We analyzed 28 patients presenting with a dissection of the ICA and/or VA with respect to the presence of high signal intensity areas on DWI suggestive of dissection and 20 control subjects without arterial dissection, some with and some without atherosclerotic lesions. ICA or VA dissection was defined by clinical and imaging, computed tomography angiography (CTA), MR angiography (MRA), and digital subtraction angiography (DSA) findings.

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Background: The location of the sigmoid sinus within the mastoid cavity is quite variable. An anteriorly- displaced vertical segment of the sigmoid sinus constitutes an uncommon but dangerous anatomical variation that surgeons rarely encounter during surgery. In this variation, the sigmoid sinus lays underneath a very thin bony flap, which makes it easily damaged.

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