MR angiography follow-up 10 years after cryptogenic nonperimesencephalic subarachnoid hemorrhage
Objectives: Long-term magnetic resonance angiography (MRA) follow-up studies regarding cryptogenic nonperimesencephalic subarachnoid hemorrhage (nSAH) are scarce. This single-centre study identified all patients with angiographically verified cryptogenic nSAH from 1998 to 2007: The two main objectiv...
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
February 17, 2015
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| In: |
PLOS ONE
Year: 2015, Volume: 10, Issue: 2 |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0117925 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1371/journal.pone.0117925 Verlag, kostenfrei, Volltext: http://journals.plos.org.ezproxy.medma.uni-heidelberg.de/plosone/article?id=10.1371/journal.pone.0117925 
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| Author Notes: | Holger Wenz, Gregory Ehrlich, Ralf Wenz, Mohamad-Motaz al Mahdi, Johann Scharf, Christoph Groden, Peter Schmiedek, Marcel Seiz-Rosenhagen |
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| 245 | 1 | 0 | |a MR angiography follow-up 10 years after cryptogenic nonperimesencephalic subarachnoid hemorrhage |c Holger Wenz, Gregory Ehrlich, Ralf Wenz, Mohamad-Motaz al Mahdi, Johann Scharf, Christoph Groden, Peter Schmiedek, Marcel Seiz-Rosenhagen |
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| 520 | |a Objectives: Long-term magnetic resonance angiography (MRA) follow-up studies regarding cryptogenic nonperimesencephalic subarachnoid hemorrhage (nSAH) are scarce. This single-centre study identified all patients with angiographically verified cryptogenic nSAH from 1998 to 2007: The two main objectives were to prospectively assess the incidence of de novo aneurysm with 3.0-MRI years after cryptogenic nSAH in patients without evidence for further hemorrhage, and retrospectively assess patient demographics and outcome. Methods: From prospectively maintained report databases all patients with angiographically verified cryptogenic nSAH were identified. 21 of 29 patients received high-resolution 3T-MRI including time-of-flight and contrast-enhanced angiography, 10.2 ± 2.8 years after cryptogenic nSAH. MRA follow-up imaging was compared with initial digital subtraction angiography (DSA) and CT/MRA. Post-hemorrhage images were related to current MRI with reference to persistent lesions resulting from delayed cerebral ischemia (DCI) and post-hemorrhagic siderosis. Patient-based objectives were retrospectively abstracted from clinical databases. Results: 29 patients were identified with cryptogenic nSAH, 17 (59%) were male. Mean age at time of hemorrhage was 52.9 ± 14.4 years (range 4 - 74 years). 21 persons were available for long-term follow-up. In these, there were 213.5 person years of MRI-follow-up. No de novo aneurysm was detected. Mean modified Rankin Scale (mRS) during discharge was 1.28. Post-hemorrhage radiographic vasospasm was found in three patients (10.3%); DCI-related lesions occurred in one patient (3.4%). Five patients (17.2%) needed temporary external ventricular drainage; long-term CSF shunt dependency was necessary only in one patient (3.4%). Initial DSA retrospectively showed a 2 x 2 mm aneurysm of the right distal ICA in one patient, which remained stable. Post-hemorrhage siderosis was detected 8.1 years after the initial bleeding in one patient (4.8%). Conclusion: Patients with cryptogenic nSAH have favourable outcomes and do not exhibit higher risks for de novo aneurysms. Therefore the need for long-term follow up after cryptogenic nSAH is questionable. | ||
| 650 | 4 | |a Aneurysms | |
| 650 | 4 | |a Angiography | |
| 650 | 4 | |a Computed axial tomography | |
| 650 | 4 | |a Hemorrhage | |
| 650 | 4 | |a Hospitals | |
| 650 | 4 | |a Intensive care units | |
| 650 | 4 | |a Lesions | |
| 650 | 4 | |a Magnetic resonance imaging | |
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