MRI-Based Predictors of Hemorrhagic Transformation in Patients With Stroke Treated by Intravenous Thrombolysis.

Clinical and biological risk factors for hemorrhagic transformation (HT) after intravenous thrombolysis (IT) have been well-established in several registries. The added value of magnetic resonance imaging (MRI) variables has been studied in small samples, and is controversial. We aimed to assess the added value of MRI variables in HT, beyond that of clinical and biological factors.

Artery of Percheron infarction as an unusual cause of coma: three cases and literature review.

Objective: Stroke due to occlusion of the artery of Percheron (AOP), an uncommon anatomic variant supplying the bilateral medial thalami, may raise diagnostic challenges and cause life-threatening symptoms. Our objective here was to detail the features and outcomes in three patients who required intensive care unit (ICU) admission and to review the relevant literature.

Methods: Description of three cases and literature review based on a 1973-2013 PubMed search.

Determinants of recovery from severe posterior reversible encephalopathy syndrome.

Objective: Few outcome data are available about posterior reversible encephalopathy syndrome (PRES). We studied 90-day functional outcomes and their determinants in patients with severe PRES.

Design: 70 patients with severe PRES admitted to 24 ICUs in 2001-2010 were included in a retrospective cohort study.