Publications by authors named "Rudy Mercelis"

Introduction: As new treatments are becoming available for patients with myasthenia gravis (MG), it is worth reflecting on the actual status of MG treatment to determine which patients would most likely benefit from the new treatments.

Methods: We reviewed the clinical files of all MG patients seen at the Department of Neurology of the Antwerp University Hospital during the years 2019, 2020 and 2021.

Results: 163 patients were included.

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Morvan's syndrome (MoS) is a rare autoimmune disorder characterized by central nervous system involvement, autonomic dysfunction and peripheral nerve hyperexcitability. MoS is believed to be caused by autoantibodies targeting contactin-associated protein 2 (Caspr2), a subunit of the neuronal voltage-gated potassium channel (VGKC) complex, usually in association with thymoma, less commonly with other malignancies. This case highlights an exceptional case of severe sleep disturbances and behavioural changes due to MoS, in a patient who would present with and be treated successfully for a second relapse of thymoma 30 months later.

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Background: Patients with idiopathic cervical dystonia (CD) experience involuntary neck muscle contractions, abnormal head position and pain accompanied by dysfunctions in somatosensory processes such as postural control, cervical sensorimotor and perception of visual verticality. First-line treatment is injection with botulinum toxin (BoNT). It remains unclear whether this affects sensorimotor processes.

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Introduction: Thirty to fifty percent of thymoma patients develop myasthenia gravis (MG). In 1.5-28% of cases, MG appears many years after removal of a thymoma.

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Idiopathic cervical dystonia (CD) is a focal dystonia characterized by an abnormal tilted or twisted head position. This abnormal head position could lead to a distorted perception of the visual vertical and spatial orientation. The aim of this cross-sectional study was to investigate whether the perception of the visual vertical is impaired in patients with CD.

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Objectives: Patients with idiopathic adult-onset cervical dystonia (CD) experience an abnormal head posture and involuntary muscle contractions. Although the exact areas affected in the central nervous system remain uncertain, impaired functions in systems stabilizing the head and neck are apparent such as the somatosensory and sensorimotor integration systems. The aim of the study is to investigate cervical sensorimotor control dysfunction in patients with CD.

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Cervical Dystonia (CD) is a rare movement disorder characterized by an abnormal head position. This cross-sectional study describes the health status and severity of disability using an internationally agreed language by applying the International Classification of Functioning, Disability and Health (ICF). Two disease-specific rating scales were administered to 30 patients with CD.

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Lambert-Eaton myasthenic syndrome (LEMS) is an autoimmune disease of the presynaptic neuromuscular junction, typically occurring in adults as a paraneoplastic syndrome. Only rare cases have been reported in childhood. In most childhood cases, malignancies have not been detected but a propensity to autoimmune disease was noticed.

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Cervical dystonia is a form of adult-onset, focal dystonia characterized by involuntary contractions of the neck muscles, leading to a disabling, abnormal head posture. CD has a great impact on the activities of daily living (ADL) and quality of life. Currently, the most widely used and recommended first line treatment is botulinum toxin type A (BoNT/A) injections.

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Background: Chronic inflammatory demyelinating polyneuroradiculopathy (CIDP) is an autoimmune disease of the peripheral nervous system, causing demyelination and even axonal degeneration. In children, abnormal gait as a first sign of muscle weakness is a frequent reason to seek medical attention. Diagnosis is made on the basis of clinical characteristics, electromyography and nerve conduction studies, and elevated protein in cerebrospinal fluid.

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Stimulated single-fiber electromyography (SSFEMG) is a valuable diagnostic tool in cases of myasthenia gravis with limited disease. From 1990 to 2008 SSFEMG in the orbicularis oculi muscle (OO) was performed in a cohort of 456 patients referred with clinical suspicion of myasthenia gravis (MG) and exclusively ocular symptoms. A diagnosis of MG was made on clinical grounds in 103 patients.

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Article Synopsis
  • The study aimed to assess changes in quality of life (QoL) after two types of surgeries for anterior mediastinal tumors: robotic-assisted thoracoscopic and open resection.
  • A total of 36 patients participated, with QoL data collected before surgery and at various points postoperatively, revealing that robot-assisted surgery led to faster recovery in QoL compared to open surgery.
  • Results showed that while both surgical methods had similar preoperative QoL, open surgery caused significant declines in physical and social functioning after one month, whereas robotic surgery's QoL scores returned close to baseline.
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Introduction: Several studies have been performed to assess the prognostic value of early neurological and neurophysiological findings in patients with postanoxic coma, but they have not led to precise, generally accepted, prognostic rules. This study was performed to assess whether it is possible to create a prognostic outcome table, using a combination of clinical variables and the electroencephalogram (EEG).

Methods: Clinical variables and EEG were registered on admission, at day 1-5, day 6-14, and day 15-42, and were related to the Glasgow outcome scale (GOS) at 30 and 180 days.

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Although recurrence of a thymoma is rare, pleural dissemination or local relapses have been described. We present a patient who underwent complete thymectomy for a thymoma, type AB according to the World Health Organization classification and stage II according to Masaoka, followed by adjuvant radiotherapy. Three years later, a relapse of the myasthenic symptoms occurred.

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Objective: To study the frequency and distribution of mutations in SPG3A in a large cohort of patients with hereditary spastic paraplegia.

Design: We screened a large cohort of 182 families and isolated cases with pure or complex hereditary spastic paraplegia phenotypes, which were negative for mutations in SPG4.

Results: In 12 probands (6.

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