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  • Title: Subarachnoid hemorrhage and normal angiography: should the angiogram be reviewed by a second neuroradiologist?
    Author: Shuaib A, Lee MA, Johns RD, Swanson HA.
    Journal: Can J Neurol Sci; 1988 Nov; 15(4):413-6. PubMed ID: 3208228.
    Abstract:
    In recent years there has been a tendency to abandon repeat cerebral angiography in patients with subarachnoid hemorrhage (SAH) if the initial angiogram is normal because prognosis is said to be excellent. Our experience does not support such a conclusion. We report our experiences in 25 patients with SAH, who had a normal initial angiogram. Aneurysms were seen in five of 20 cases when angiography was repeated. On subsequent review of the initial angiograms, the aneurysm was apparent in four of the five cases. When these four initial angiograms were shown to a second observer, unaware of the results of the second study, three of the four aneurysms were correctly identified. We suggest that if, under strong clinical suspicion of SAH, the angiogram is reported as normal the study should be reviewed by a second neuro-radiologist before proceeding to repeat angiography.
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