Why the study?
Does repeat catheter angiography identify causative vascular abnormalities in patients with subarachnoid hemorrhage and negative initial angiograms?
Population
72 patients with subarachnoid hemorrhage documented by noncontrast CT or CSF xanthochromia and negative…
Design
Cohort
Follow-up
3 months
Authors
Loading...
May justify early repeat angiography in SAH with negative initial study; leaves open utility of later repeats pending prospective validation.
Does repeat catheter angiography identify causative vascular abnormalities in patients with subarachnoid hemorrhage and negative initial angiograms?
Repeat catheter angiography at 7 days provides a small but potentially important diagnostic yield (4.2%) in patients with SAH and initially negative angiograms, whereas a 3-month repeat may be unnecessary.
Almandoz et al. (2011) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: