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We examined the influence of focal cerebellar lesions on working memory (n-back task), gait, and the interaction between working memory and different gait tasks in a dual-task paradigm. The analysis included 17 young patients with chronic focal lesions after cerebellar tumor resection and 17 age-matched controls. Patients have shown mild to moderate ataxia.(More)
BACKGROUND AND PURPOSE To test the hypothesis that sporadic cerebral cavernous malformations (CCMs) are systematically associated with venous malformations (VMs) using susceptibility weighted imaging (SWI) at 7 Tesla (T) field MRI. METHODS A prospective unselected series of 20 patients with symptomatic or asymptomatic sporadic CCM diagnosed using 1.5 T(More)
The rupture of an intracranial aneurysm leads to subarachnoid hemorrhage (SAH). To prevent SAH, unruptured lesions can be treated by either endovascular or microsurgical approach. Due to their complex anatomy, middle cerebral artery (MCA) aneurysms represent a unique subgroup of intracranial aneurysms. Primary objective was to determine radiological and(More)
OBJECTIVE The aim of this study was to determine seizure outcome, functional outcome, and the withdrawal of antiepileptic drugs (AEDs) after conservative or surgical treatment of patients with new-onset cavernoma-related epilepsy (CRE). METHODS The authors conducted a retrospective comparative observational study of 79 consecutive patients, each with a(More)
PURPOSE To prospectively evaluate 7 Tesla time-of-flight (TOF) magnetic resonance angiography (MRA) in comparison to 1.5 Tesla TOF MRA and 7 Tesla non-contrast enhanced magnetization-prepared rapid acquisition gradient-echo (MPRAGE) for delineation of unruptured intracranial aneurysms (UIA). MATERIAL AND METHODS Sixteen neurosurgical patients (male n = 5,(More)
RATIONALE AND OBJECTIVES Cavernous malformations (cavernomas) occur in 0.4%-0.9% of the population. The most common symptoms of cavernous malformations are seizures. An improved detection of small cavernomas might possibly help to clarify cryptogenic seizures, which represent 30% of all seizures. The aim of this study was to evaluate the benefit of magnetic(More)
This study was undertaken to analyze the functional outcome of surgically treated spinal meningiomas and to determine factors for surgical morbidity. Between January 1990 and December 2006 a total of 131 patients underwent surgical resection of a spinal menigioma. There were 114 (87%) female and 17 (13%) male patients. Age ranged from 17 to 88 years (mean(More)
BACKGROUND Occipital nerve stimulation (ONS) has been shown to be effective for selected patients with intractable headache disorders. We performed a prospective critical evaluation of complications and direct treatment costs. METHODS Twenty-seven patients with chronic cluster headache (CCH, N  = 24) or chronic migraine (CM, N = 3) underwent a trial phase(More)
OBJECTIVE Neuromodulation has been recognized as a valuable surgical treatment option for patients with refractory chronic cluster headache (CCH). Due to the small number of afflicted individuals, the knowledge about this specific therapy is limited. In this study, we present our experiences with bilateral occipital nerve stimulation (ONS) in patients with(More)
OBJECTIVE The complete clipping of a cerebral aneurysm usually warrants its sustained occlusion, while clip remnants may have far-reaching consequences. The aim of this study is to identify the risk factors for clip remnants requiring retreatment and/or exhibiting growth. METHODS All consecutive patients with primary aneurysm clipping performed at(More)