2013
DOI: 10.1227/neu.0b013e3182846de8
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Abstract: Our results support a protocol of short-term and long-term angiographic follow-up in patients with NPM SAH and negative initial angiography. Aggressive protocols of follow-up angiography may not be necessary in patients with PM SAH.

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Cited by 30 publications
(19 citation statements)
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“…In one patient (1%) after aneurysm-negative DSA in the spinal MRI a pathology as source of hemorrhage was identified. Compared to other published data with series of more than 50 patients this rate is very similar (7%-18%) [5,17,25,26]. Some studies described lower rates, but repeated angiography were done in series with less than 50 patients [21,27].…”
Section: Discussionmentioning
confidence: 50%
“…In one patient (1%) after aneurysm-negative DSA in the spinal MRI a pathology as source of hemorrhage was identified. Compared to other published data with series of more than 50 patients this rate is very similar (7%-18%) [5,17,25,26]. Some studies described lower rates, but repeated angiography were done in series with less than 50 patients [21,27].…”
Section: Discussionmentioning
confidence: 50%
“…Particularly in the case of non-perimesencephalic hemorrhage, follow-up catheter angiography at intervals of 1 and 6 weeks from the time of hemorrhage have been show to improve the sensitivity of detecting a vascular lesion when the initial angiogram is negative. 7 …”
Section: Discussionmentioning
confidence: 99%
“…7 In the setting of diffuse SAH a third angiogram has been recommended at a period of 6 weeks. 7 While randomized trials do not exist to support any imaging protocol in this scenario, data from large retrospective series such the recent report from Dalyai et al provide useful data from the experience of a high-volume neurovascular center.…”
Section: Discussionmentioning
confidence: 99%
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