Publications by authors named "Marina Flotats Bastardas"

Article Synopsis
  • This study investigates the clinical and MRI characteristics of children with autoimmune GFAP astrocytopathy, revealing limited data compared to what is known in adults.
  • Researchers analyzed cases of 15 children from various clinical centers, finding common symptoms like acute encephalitis and meningitis, and specific MRI patterns in all cases.
  • The findings suggest that GFAP antibodies lead to distinct clinical and imaging features, emphasizing the need for testing in pediatric patients with similar symptoms, especially those with brainstem involvement.
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Background: Real-world data on gene addition therapy (GAT) with onasemnogene abeparvovec (OA), including all age groups and with or without symptoms of the disease before treatment are needed to provide families with evidence-based advice and realistic therapeutic goals. Aim of this study is therefore a population-based analysis of all patients with SMA treated with OA across Germany, Austria and Switzerland (D-A-CH).

Methods: This observational study included individuals with Spinal Muscular Atrophy (SMA) treated with OA in 29 specialized neuromuscular centers in the D-A-CH-region.

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Purpose: Spinal muscular atrophy (SMA) is a rare, autosomal-recessive disease characterized by progressive muscular atrophy and weakness resulting in substantial disability and short life expectancy. The objective of this cross-sectional study was to assess health-related quality of life (HRQoL) of adults with SMA in Germany in the era of disease-modifying therapy.

Methods: Adults with SMA were recruited via the German national TREAT-NMD SMA patient registry.

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Article Synopsis
  • Early diagnosis and treatment are crucial for improving outcomes in infants with spinal muscular atrophy (SMA), leading to the implementation of newborn screening programs, but there is a lack of robust data confirming their benefits.* -
  • This study compared SMA patients diagnosed through newborn screening to those diagnosed after symptoms appeared, using data from 234 children across Germany, Austria, and Switzerland from the SMARTCARE registry.* -
  • Results showed that infants identified through newborn screening started treatment significantly earlier (average 1.3 months) than those diagnosed by symptoms (average 10.7 months), leading to better motor milestones, such as higher rates of independent sitting and walking.*
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Newborn screening for 5qSMA offers the potential for early, ideally pre-symptomatic, therapeutic intervention. However, limited data exist on the outcomes of individuals with 4 copies of SMN2, and there is no consensus within the SMA treatment community regarding early treatment initiation in this subgroup. To provide evidence-based insights into disease progression, we performed a retrospective analysis of 268 patients with 4 copies of SMN2 from the SMArtCARE registry in Germany, Austria and Switzerland.

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Article Synopsis
  • The study examined the long-term efficacy and safety of nusinersen in adults with 5q-associated spinal muscular atrophy (SMA) over a period of 38 months, utilizing a large cohort from Germany, Switzerland, and Austria.
  • Overall, significant improvements were noted in various motor performance measures (HFMSE, RULM, and 6MWT) at multiple time points compared to baseline, indicating ongoing benefits from the treatment.
  • No new safety concerns were found, reinforcing the idea that nusinersen remains a viable therapy for adults with SMA over extended periods.
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Background/objective: Neurofilament light chain (NfL) has been proposed as a biomarker reflecting disease severity and therapy response in children with spinal muscular atrophy type 1 and 2 (SMA1 and 2). The objective of this study was to examine how serum NfL changes after gene replacement therapy (GRT) with onasemnogene abeparvovec-xioi.

Methods: We measured NfL in serum probes from 19 patients (10 SMA 1 and 6 SMA 2; 15 previously treated with nusinersen or risdiplam; 12 male) before and at variable time points after GRT.

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Background: Spinal muscular atrophy (SMA) is a rare, severely debilitating neuromuscular disease characterized by a wide spectrum of progressive muscular atrophy and weakness.

Objectives: The objective of this pilot study was to estimate self-assessed health-related quality of life (HRQoL) of children with SMA.

Methods: Children with SMA were recruited via the German national TREAT-NMD SMA patient registry and asked to self-complete the following rating-scales: KIDSCREEN-27, KINDL, the PedsQL 3.

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Background: Peripheral facial palsy (PFP) is a common neurologic symptom which can be triggered by pathogens, autoimmunity, trauma, tumors, cholesteatoma or further local conditions disturbing the peripheral section of the nerve. In general, its cause is often difficult to identify, remaining unknown in over two thirds of cases. As we have previously shown that the quantity and quality of pathogen-specific T cells change during active infections, we hypothesized that such changes may also help to identify the causative pathogen in PFPs of unknown origin.

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Article Synopsis
  • Diagnosing autism spectrum disorder (ASD) is complicated due to the lack of biological markers and the presence of other disorders; this study aimed to improve diagnostic procedures using neuropediatric assessments.
  • The study analyzed 82 patients with ASD at Saarland University Hospital, finding that EEG was the most common test, showing abnormal results in 33.8% of cases, and 19.5% were diagnosed with epilepsy based on EEG findings.
  • It is recommended that neuropediatric evaluations for suspected ASD should include a detailed patient history, neurological exams, and EEG; MRI and other advanced tests should only be conducted when necessary.
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Background: Management and treatment of spinal muscular atrophy (SMA) has changed in recent years due to the introduction of novel transformative and potentially curative therapies resulting in the emergence of new disease phenotypes. Yet, little is known about the uptake and impact of these therapies in real-world clinical practice. The objective of this study was to describe current motor function, need of assistive devices, and therapeutic and supportive interventions provided by the healthcare system, as well as the socioeconomic situation of children and adults with different SMA phenotypes in Germany.

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Background And Objectives: Disease progression in patients with spinal muscular atrophy (SMA) has changed dramatically within the past years due to the approval of three different disease-modifying treatments. Nusinersen was the first drug to be approved for the treatment of SMA patients. Clinical trials provided data from infants with SMA type 1 and children with SMA type 2, but there is still insufficient evidence and only scarcely reported long-term experience for nusinersen treatment in ambulant patients.

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Article Synopsis
  • Targeted therapies for spinal muscular atrophy (SMA) have led to efforts to include SMA screening in newborn screenings globally, with Germany implementing it in October 2021 after successful pilot projects from 2018 to 2021.
  • Follow-up criteria were established involving key stakeholders to ensure effective transition to this screening process, although initial false positives were reported in 3 cases.
  • After refining screening methods, confirmation of results improved, and on average, patients began seeing specialists by day 12 of life, with therapy starting by day 26, maintaining timely intervention compared to earlier pilot efforts.
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Background: The development and approval of disease modifying treatments have dramatically changed disease progression in patients with spinal muscular atrophy (SMA). Nusinersen was approved in Europe in 2017 for the treatment of SMA patients irrespective of age and disease severity. Most data on therapeutic efficacy are available for the infantile-onset SMA.

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Introduction: Neuroimmunological diseases such as autoimmune encephalitis (AE) or acquired demyelinating syndromes (ADS), can present with neurological symptoms and imaging features that are indistinguishable from mitochondrial diseases (MD) in particular at initial presentation.

Methods: Retrospective analysis of the clinical, laboratory and neuroimaging features of five patients who presented with signs of a neuroimmunological disease but all had pathological pathogenic variants in genes related to mitochondrial energy metabolism.

Results: Four patients presented with an acute neurological episode reminiscent of a possible AE and one patient with a suspected ADS at initial presentation.

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Pseudotumor cerebri (PTC) is defined as a rare disease with a pathological increase in intracranial pressure of unknown origin. The aim of this retrospective study was to establish a uniform diagnostic and therapeutic protocol for children and adolescents for the Saarland University Medical Center. Data from 28 patients with pseudotumor cerebri aged 0-17 years in the period 2008-2018 were retrospectively collected and statistically analyzed.

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5q-associated spinal muscular atrophy is a rare neuromuscular disorder with the leading symptom of a proximal muscle weakness. Three different drugs have been approved by the European Medicines Agency and Food and Drug Administration for the treatment of spinal muscular atrophy patients, however, long-term experience is still scarce. In contrast to clinical trial data with restricted patient populations and short observation periods, we report here real-world evidence on a broad spectrum of patients with early-onset spinal muscular atrophy treated with nusinersen focusing on effects regarding motor milestones, and respiratory and bulbar insufficiency during the first years of treatment.

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Article Synopsis
  • The study aimed to gather real-world data on the safety and efficacy of the gene replacement therapy onasemnogene abeparvovec for children with spinal muscular atrophy, particularly focusing on various patient subgroups like those over 24 months and those treated with nusinersen.
  • Conducted in 18 pediatric neuromuscular centers in Germany and Austria, the study involved 76 children, assessing their motor function before and six months after the therapy using specific testing scales, while also monitoring for adverse effects.
  • The findings showed significant improvements in motor function for younger patients, particularly those under 24 months, with many achieving notable increases in their CHOP INTEND and HFMSE scores, though older children did not show similar
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Background: Syncope in childhood and adolescence is frequent and in most cases benign. A thorough history taking, complete physical examination, electrocardiography and further diagnostic work-up as indicated should rule out possible cardiac syncope.

Objective: To evaluate whether the diagnosis of syncope was performed according to the currently valid S2k guideline.

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Neuromuscular disorders (NMDs) of Childhood onset are a genetically heterogeneous group of diseases affecting the anterior horn cell, the peripheral nerve, the neuromuscular junction, or the muscle. For many decades, treatment of NMDs has been exclusively symptomatic. But this has changed fundamentally in recent years due to the development of new drugs attempting either to ameliorate secondary pathophysiologic consequences or to modify the underlying genetic defect itself.

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Nusinersen, an antisense oligonucleotide enhancing the production of the survival motor neuron protein, is approved for the treatment of spinal muscular atrophy (SMA) but requires repetitive lumbar punctures. Application via a subcutaneous port connected to a permanent intrathecal catheter has been proposed as an alternative for patients with severe scoliosis, spinal fusion, or comorbidities, rendering serial interlaminar punctures complicated and risky. Since experience with this technique is sparse and follow-up data are lacking, we assessed feasibility, safety, and tolerability of this approach in eight patients with SMA II/SMA III receiving Nusinersen in a multicenter study.

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Aims: Tuberous sclerosis complex (TSC) is a multisystem genetic disorder caused by a mutation in the TSC1 or TSC2 gene with a broad spectrum of physical and psychological manifestations. The aim of the study was to examine incontinence, psychological problems, and adaptive behavior skills in patients with TSC.

Methods: Through a worldwide TSC support group, 26 children (4-17 years) and 15 adults (18-50 years) with TSC were recruited (38.

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The natural history of patients with spinal muscular atrophy (SMA) has changed due to advances in standard care and development of targeted treatments. Nusinersen was the first drug approved for the treatment of all SMA patients. The transfer of clinical trial data into a real-life environment is challenging, especially regarding the advice of patients and families to what extent they can expect a benefit from the novel treatment.

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Introduction: Spinal muscular atrophy (SMA) is a genetic disease affecting the second motor neuron, causing progressive muscle atrophy and weakness due to decreased expression of the survival motor neuron. Different subtypes exist, type 2 being one of the most frequent ones. These patients show a high incidence of scoliosis requiring surgery.

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