Spontaneous subarachnoid haemorrhage with negative initial angiography: a review of 143 cases.

摘要: The need for repeat angiography in patients with subarachnoid haemorrhage (SAH) who initially present a negative angiogram is still debated. aim of this study was to provide management protocol 'angiogram-negative SAH'. From January 1986 June 2004, 143 SAH were admitted our institution initial angiograms. We classified the into three groups: group I, no on CT scan, but confirmed by cerebrospinal fluid analysis; II, perimesencephalic pattern SAH; and III, non-perimesencephalic SAH. Out patients, 103 underwent angiography, 18 found have ruptured aneurysms that not detected (false rate: 17.5% overall, 0% 1.5% 45.9% III). Repeat should be performed, particularly pattern, detection unrecognised aneurysms.