Ahead of Print: Diagnostic Yield of Repeat Catheter Angiography in Patients with Catheter and CT Angiography Negative Subarachnoid Hemorrhage

Full article access for Neurosurgery subscribers at Neurosurgery-Online.com.

BACKGROUND: The yield of repeat catheter angiography in patients with subarachnoid hemorrhage (SAH) who have negative initial catheter and CT angiograms is not well understood.

OBJECTIVE: To determine the yield of repeat catheter angiography in a prospective cohort of patients with SAH and negative initial catheter and CT angiograms.

METHODS: From January 1st, 2005, until September 1st, 2010, we instituted a prospective protocol in which patients with SAH documented by non-contrast CT (NCCT) or cerebrospinal fluid (CSF) xanthochromia and negative initial catheter and CT angiograms were evaluated with repeat catheter angiography 7 days and 3 months after presentation to assess for causative vascular abnormalities.

Ahead of Print: Independent Validation of The Secondary Intracerebral Hemorrhage Score with Catheter Angiography and Findings of Emergent Hematoma Evacuation

Full article access for Neurosurgery subscribers at Neurosurgery-Online.com.

BACKGROUND: The secondary intracerebral hemorrhage (SICH) score, derived from a cohort of ICH patients examined with CT angiography, predicts a patient’s risk of harboring a vascular etiology.

OBJECTIVE: To validate the SICH score in an independent patient population.

METHODS: We retrospectively reviewed all adult non-traumatic ICH patients who presented to our institution during a 5.4-year period and were evaluated with catheter angiography or underwent emergent hematoma evacuation, and applied the SICH score to this cohort. Receiver operating characteristic analysis was performed to determine the area under the curve (AUC) and maximum operating point (MOP). Patients with subarachnoid hemorrhage in the basal cisterns were excluded.