Hermann Schumacher

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OBJECTIVE To identify the frequency of and impact on outcome of generalized convulsive status epilepticus (GCSE) among patients with nontraumatic subarachnoid hemorrhage (SAH). METHODS We used the Nationwide Inpatient Sample, a database of admissions to nonfederal United States hospitals between 1994 and 2002, for this study. From this database, we(More)
BACKGROUND Endovascular revascularization for intracranial atherosclerotic stenoses is being increasingly performed at major medical centers and has been reported to be technically feasible and safe. The authors report their experience with patients who underwent such a procedure for impending stroke and neurologic instability. METHOD All 18 patients (21(More)
A commercially available SiGe HBT MMIC technology is used to realize low noise amplifiers covering a wide frequency band. Minimum noise figures of 1 dB, 1.6 dB and 3.3 d8 are observed in 1.9, 5.7 and 10 GHz LNAs, respectively. The gain of all amplifiers is in excess of 12 dB. The large signal performance is investigated by two-tone intercept point(More)
OBJECTIVE Relatively little is known about the epidemiology of generalized convulsive status epilepticus (GCSE) in acute ischemic and hemorrhagic stroke. We examined the occurrence of GCSE in acute ischemic stroke (AIS) and intracerebral hemorrhage (ICH) using a large discharge database. METHODS Data were derived from the Nationwide Inpatient Sample for(More)
BACKGROUND AND PURPOSE The goal of this article is to provide consensus recommendations for reporting standards, terminology, and written definitions when reporting on the radiological evaluation and endovascular treatment of intracranial, cerebral aneurysms. These criteria can be used to design clinical trials, to provide uniformity of definitions for(More)
BACKGROUND AND PURPOSE The goal of this study was to analyze the association of hemorrhagic presentation with infratentorial brain arteriovenous malformations (AVMs). METHODS The 623 consecutive, prospectively enrolled patients from the Columbia AVM Databank were analyzed in a cross-sectional study. Clinical presentation (diagnostic event) was categorized(More)
Stroke is the third leading cause of death in the USA, Canada, Europe, and Japan. According to the American Heart Association and the American Stroke Association, there are now 750,000 new strokes that occur each year, resulting in 200,000 deaths, or 1 of every 16 deaths, per year in the USA alone. Endovascular therapy for patients with acute ischemic(More)
OBJECTIVE To describe the frequency, risk factors, and outcome of intracerebral hemorrhage (ICH) in pregnancy and the postpartum period using a large database of US inpatient hospitalizations. METHODS The authors obtained data from an administrative dataset, the Nationwide Inpatient Sample, which includes approximately 20% of all discharges from(More)
OBJECTIVE To assess the effect of concurrent arterial aneurysms on the risk of incident haemorrhage from brain arteriovenous malformations (AVMs). METHODS In a cross sectional study, 463 consecutive, prospectively enrolled patients from the Columbia AVM Databank were analysed. Concurrent arterial aneurysms on brain angiography were classified as feeding(More)