Publications by authors named "David A Perez Martinez"

Article Synopsis
  • A comprehensive understanding of the healthcare system and neurology departments is essential for effectively implementing anti-amyloid antibody treatments in hospitals, especially regarding the organization and patient care.* -
  • A survey of department heads from 16 Spanish hospitals showed consensus on the need for structural changes, such as focusing Alzheimer’s patients in specialized dementia units and expanding neurology services by hiring more staff and enhancing diagnostic procedures.* -
  • The findings underscore the necessity for significant transformations in Spanish neurology departments to ensure the successful integration of anti-amyloid antibodies and promote fair access to new therapies for patients.*
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Article Synopsis
  • The study examines how neurologists are using new anti-amyloid-β disease-modifying therapies (DMTs) for early Alzheimer's disease (AD) and aims to understand their decision-making factors, particularly in the context of uncertainty and risk.
  • Conducted as a web-based survey involving 400 neurologists in Spain, the research will gather demographic data and evaluate their responses to simulated patient scenarios related to treatment initiation with DMTs.
  • The outcomes will shed light on trends in therapeutic inertia (delays in treatment initiation) and provide insights into the factors that influence neurologists' treatment choices for early AD.
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Purpose: To assess the feasibility and effects on manual dexterity and the quality of life (QoL) of a 12-week home calligraphic training program in patients with Parkinson's disease (PD).

Methods: A pilot study with participants recruited from the Movement Disorders consultation at the Hospital 12 de Octubre (Madrid). The main outcome, manual dexterity, was assessed using the Purdue Pegboard Test (PPT).

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Widespread access to emerging information and communication technologies (ICT) allows its use for the screening of diseases in the general population. At the initiative of the Spanish Confederation of Associations of Families of People with Alzheimer's disease and other dementias (CEAFA), a website (http://www.problemasmemoria.

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Background: For specialists in charge of Parkinson's disease (PD), one of the most time-consuming tasks of the consultations is the assessment of symptoms and motor fluctuations. This task is complex and is usually based on the information provided by the patients themselves, which in most cases is complex and biased. In recent times, different tools have appeared on the market that allow automatic ambulatory monitoring.

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In the last few years, the SORL1 gene has been strongly implicated in the development of Alzheimer’s disease (AD). We performed whole-exome sequencing on 37 patients with early-onset dementia or family history suggestive of autosomal dominant dementia. Data analysis was based on a custom panel that included 46 genes related to AD and dementia.

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Introduction: In recent years, multiple studies have aimed to develop and validate portable technological devices capable of monitoring the motor complications of Parkinson's disease patients (Parkinson's Holter). The effectiveness of these monitoring devices for improving clinical control is not known.

Methods And Analysis: This is a single-blind, cluster-randomised controlled clinical trial.

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-variants associated with frontotemporal lobar degeneration have been described recently. In this study, we investigated a heterozygous in-frame duplication c.436_462dup p.

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We analyzed the frequency of cognitive impairment (CI) in deceased COVID-19 patients at a tertiary hospital in Spain. Among the 477 adult cases who died after admission from March 1 to March 31, 2020, 281 had confirmed COVID-19. CI (21.

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Kynurenic acid (KYNA) is a product of the tryptophan (TRP) metabolism via the kynurenine pathway (KP). This pathway is activated in neurodegenerative disorders, such as Alzheimer´s disease (AD). KYNA is primarily produced by astrocytes and is considered neuroprotective.

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Background: A new algorithm has been developed, which combines information on gait bradykinesia and dyskinesia provided by a single kinematic sensor located on the waist of Parkinson disease (PD) patients to detect motor fluctuations (On- and Off-periods).

Objective: The goal of this study was to analyze the accuracy of this algorithm under real conditions of use.

Methods: This validation study of a motor-fluctuation detection algorithm was conducted on a sample of 23 patients with advanced PD.

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Primary progressive aphasia (PPA) is considered a heterogeneous syndrome, with different clinical subtypes and neuropathological causes. Novel PET biomarkers may help to predict the underlying neuropathology, but many aspects remain unclear. We studied the relationship between amyloid PET and PPA variant in a clinical series of PPA patients.

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Accurate blood-based biomarkers of Alzheimer's disease (AD) could constitute simple, inexpensive, and non-invasive tools for the early diagnosis and treatment of this devastating neurodegenerative disease. We sought to develop a robust AD biomarker panel by identifying alterations in plasma metabolites that persist throughout the continuum of AD pathophysiology. Using a multicenter, cross-sectional study design, we based our analysis on metabolites whose levels were altered both in AD patients and in patients with amnestic mild cognitive impairment (aMCI), the earliest identifiable stage of AD.

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Background: Patients with severe idiopathic Parkinson's disease experience motor fluctuations, which are often difficult to control. Accurate mapping of such motor fluctuations could help improve patients' treatment.

Objective: The objective of the study was to focus on developing and validating an automatic detector of motor fluctuations.

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Most recent therapeutic solutions to treat Parkinson's disease seek continuous administration of dopaminergic agonists, as for example rigotine patches or apomorphine infusion pumps. Such drug-delivery devices are aimed at preventing fluctuations in drug plasma levels, which could cause certain symptoms such as wearing-off periods or dyskinesia. However, we postulate that drug plasma levels should not keep constant, but rather adjust to the varying intensity of the different user's activities.

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Material And Methods: We describe clinical, cerebrospinal fluid (CSF), and magnetic resonance imaging (MRI) findings in a patient with general paresis. MRI demonstrated cortical-subcortical atrophy and broad-coalescent high-intensity T2 lesions in right frontotemporal lobes.

Results: After intravenous penicillin therapy, the size of these lesions diminished dramatically.

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