External Validation of the ARISE Prediction Models for Aneurysmal Rebleeding After Aneurysmal Subarachnoid Hemorrhage.

Background And Objectives: To externally validate the Aneurysmal RebleedIng after Subarachnoid hEmorrhage (ARISE) prediction models that predict preinterventional aneurysmal rebleeding within 24 and 72 hours after aneurysmal subarachnoid hemorrhage (aSAH).

Methods: We pooled data from two international hospital registries from University Hospital Oslo, Norway, and University Hospital Rotterdam, The Netherlands, to validate the ARISE base model (including patient age, sex, hypertension, World Federation of Neurological Surgeons grade, Fisher grade, aneurysm size, and cerebrospinal fluid diversion) and the ARISE extended model (adding aneurysm irregularity to the base model). Model performance was assessed with discrimination (Harrell c-statistic, model-based c-statistic) and calibration (calibration-in-the-large, calibration slope, and calibration plots).

Resilience in good outcome patients with fatigue after aneurysmal subarachnoid hemorrhage.

Resilience is a psychological process that encompasses various facets of personality traits, behaviour, as well as coping, and it enhances the adjustment to adversities faced. Although a lot of interest has been devoted to the protective effects of resilience in handling affective disorders, little is known about the relationship between resilience and chronic fatigue, which is a common and potentially disabling sequel in survivors of aneurysmal subarachnoid hemorrhage (aSAH). Ninety-six good outcome patients with chronic post-aSAH fatigue answered the Resilience Scale for Adults (RSA) which assesses 6 distinct aspects of resilience.

Impact of Subarachnoid Hemorrhage on Human Glymphatic Function: A Time-Evolution Magnetic Resonance Imaging Study.

Background: Subarachnoid hemorrhage (SAH) is associated with significant mortality and morbidity. The impact of SAH on human glymphatic function remains unknown.

Methods: This prospective, controlled study investigated whether human glymphatic function is altered after SAH, how it differs over time, and possible underlying mechanisms.

Real-Time Automated Measurements of Optic Nerve Sheath Diameter for Noninvasive Assessment of Intracranial Pressure in Aneurysmal Subarachnoid Hemorrhage.

Background: Optic nerve sheath diameter (ONSD) is a promising noninvasive parameter for intracranial pressure (ICP) assessment. However, in the setting of aneurysmal subarachnoid hemorrhage (aSAH), several previous studies have reported no association between ultrasonically measured ONSD and ICP. In this study, we evaluate ONSD in patients with aSAH using a novel method of automated real-time ultrasonographic measurements and explore whether factors such as having undergone surgery affects its association to ICP.