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Cryptogenic subarachnoid bleeding

Holger Wenz, Gregory Ehrlich, Ralf Wenz, Mohamad-Motaz Al Mahdi, Johann Scharf, Christoph Groden, Peter Schmiedek, Marcel Seiz-Rosenhagen
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...
2015: PloS One
Gyeong O Go, Hyun Park, Chul Hee Lee, Soo Hyun Hwang, Jong Woo Han, In Sung Park
OBJECTIVE: Spontaneous intracerebral hemorrhage (ICH) in young adults is rare. The purpose of this study was to investigate causes, sites and other factors affecting the prognosis of ICH in young adults aged ≤ 40 years. METHODS: We reviewed 39 consecutive patients diagnosed with spontaneous ICH between January 2001 and June 2012. Patients with primary subarachnoid hemorrhage, previously diagnosed brain tumor bleeding, or vascular malformation were excluded. We analyzed the differences in prognostic factors such as hemorrhage location and vascular structural etiology...
September 2013: Journal of Cerebrovascular and Endovascular Neurosurgery
Norberto Andaluz, Mario Zuccarello
BACKGROUND: Subarachnoid hemorrhage (SAH) is cryptogenic in 15% of cases. Despite reports of proven recurrence, additional diagnostic studies are not often recommended when no abnormalities were identified on the initial study with digital subtraction angiography (DSA). In our retrospective review of outcomes after cryptogenic SAH, we identify diagnostic strategies that most often yielded the source of bleeding. METHODS: Of 719 patients admitted with SAH from 1998 to 2003, 92 (12...
May 2008: Neurosurgery
R Martínez-Mañas, G Ibáñez, J Macho, F Gastón, E Ferrer
INTRODUCTION: Subarachnoidal hemorrhage (SAH) is a medical emergency in all the patients. There are some known risk factors and, some complications associated to subarachnoid hemorrhage due to aneurysm rupture, being the rebleeding the main cause of mortality. POPULATION AND METHODS: We performed a retrospective study of 234 patients with non traumatic SAH treated in the Hospital Clínic i Provincial of Barcelona from January 1993 to December 1999. Diagnosis of SAH was done by CT, and ethiological diagnosis by brain angiography...
June 2002: Neurocirugía
L E Velghe, P De Wit
Patients with spontaneous primary subarachnoid haemorrhage (SAH) in whom initial diagnostic investigation, including cerebral four-vessel angiography, does not reveal a cause, present a difficult problem. In a series of 95 patients a cause became apparent in about 10% of cases during the first three weeks, predominantly missed aneurysms. After three weeks the clinical evolution was benign. Cryptogenic SAH seems to be a disease of its own, but in the individual case the possibility of missed aneurysm or later of no re-bleed aneurysm always remains...
1983: Clinical Neurology and Neurosurgery
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