Sex differences in acute telestroke care: more to the story.

Background: Previous studies have shown sex differences in stroke care. Female patients have both lower thrombolytic treatment rates with OR reported as low as 0.57 and worse outcomes.

Prevalence of locoregional recurrence and survival post-treatment of head and neck cancers in Africa: a systematic review and meta-analysis.

Background: Recurrent cancers of the head and neck are associated with poor survival outcome. Yet, their burden in Africa is not reliably known. We therefore aimed to estimate the prevalence of recurrence and the 5-year overall survival among patients treated for head and neck cancers (HNC) in Africa.

Ultrasound velocity criteria for vertebral origin stenosis.

Background: Despite remaining an important cause of posterior circulation stroke, the non-invasive diagnosis of vertebral artery origin (VAo) stenosis is problematic. We here examine peak systolic velocity (PSV) criteria for the diagnosis of VAo stenosis and assess if the PSV ratio at the origin to the distal segments improves diagnostic accuracy.

Methods: We performed a retrospective analysis of patients studied by catheter cerebral angiography and extracranial Duplex ultrasonography.

Unusual presentation of central nervous system cryptococcal infection in an immunocompetent patient.

The imaging findings of cryptococcosis affecting the brain in immunocompetent patients can be different from the more commonly described findings in immunocompromised patients. We report a case of an extremely unusual MR appearance of central nervous system cryptococcosis in a 49-year-old immunocompetent man.

Diffusion-weighted magnetic resonance imaging in symptomatic vertebrobasilar atherosclerosis and dissection.

Background: Acute multiple brain infarction (AMBI) pattern on diffusion-weighted imaging (DWI) is associated with arterial and cardiac sources of embolism. The DWI characteristics of patients with stroke due to vertebrobasilar arterial dissection and atherosclerotic disease have not been reported in detail.

Objective: To describe the DWI stroke patterns in patients with posterior circulation occlusive disease to determine mechanisms of ischemia.