Jochen Fischer

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OBJECTIVE Sleep supports the consolidation of declarative memory. Patients with attention-deficit/hyperactivity disorder (ADHD) are not only characterized by sleep problems but also by declarative memory deficits. Given that the consolidation of declarative memory during sleep is supported by slow oscillations, which are predominantly generated by the(More)
Patients with attention-deficit/hyperactivity disorder (ADHD) show deficits in working memory (WM) which may be related to prefrontal dysfunction. Methylphenidate (MPH) can restore WM deficits in ADHD by enhancing prefrontal activity. At the same time, changes in striatal activation could cause ADHD patients to be more interference-sensitive during working(More)
We present an architecture for combining wikis containing hypertext with ontologies containing formal, structured information. A web-based ontology editor that supports collaborative work through versioning, transactions and management of simultaneous modifications is used for ontology evolution. In wiki pages, ontology information can be used to render(More)
BACKGROUND Migraine is very common in school-aged children, but despite a number of pharmacological and non-pharmacological options for prophylaxis, randomized controlled evidence in children is small. Evidence-based prophylactic drugs may have considerable side effects. OBJECTIVE This study was to assess efficacy of a butterbur root extract (Petadolex)(More)
AIM This study reports the safety, efficacy and functional and patient centred outcomes of the largest published series of patients treated with the Rockwood clavicle pin (intramedullary device) to date. PATIENTS AND METHODS A retrospective review of case notes, radiographs and follow-up by questionnaire was conducted. 86 patients were operated upon, 70(More)
INTRODUCTION Debate exists amongst surgeons regarding the ideal suture material for skin closure in carpal tunnel decompression (CTD). This study compares wound related complications, patient satisfaction, and functional outcome following open carpal tunnel decompression in patients undergoing wound closure with either of two common absorbable and(More)
Finger tourniquets have been used in finger surgery for a long time to provide a bloodless field while operating on digits. Many different techniques have been described for a 'safe and reliable' finger tourniquet including Penrose drains, coloured rubber gloves and gloves with haemostat. The potential injury that can be caused by leaving the tourniquet in(More)
PURPOSE The aim of this study is to assess the accuracy of a simple clinical test (subacromial grind test) in diagnosing supraspinatus tendon tears. PATIENTS AND METHODS The test is considered positive if palpable crepitus or grinding is detected on passive internal and external rotation of the shoulder while abducted in the scapular plane. Data were(More)
Eponymous terms are in daily use in medicine. This system of nomenclature which simply commemorates a person is inconvenient, poses difficulties to students and leads to frequent mistakes in scientific writings. Nevertheless it can be helpful in completely describing a multi-symptomatic medical condition or a complex surgical procedure which otherwise would(More)