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Early Mobilization Decision after an Acute Ischemic Stroke: Protocol for an Umb...
Fernandes, Catarina; Sousa, João André; Bernardo-Castro, Sara; Silva, Fernando; Donato, Helena; Sargento-Freitas, JoãoIntroduction: Stroke is considered one of the greatest public health challenges worldwide, with the ischemic subtype being the most prevalent. Various acute stroke clinical guidelines recommend early rehabilitation interventions, including very early mobilization. However, despite the studies conducted in recent years regarding when to initiate mobilization after an acute stroke, there are few systematic and pe...
Impact of the First Year of the COVID-19 Pandemic on Telestroke Network Perform...
V. Carvalho, Inês; Millet Barros, Francisco; Sousa Fernandes, Carolina; Sousa, João; Rodrigues, Ana Isabel; Faustino, Pedro; Martins, EmanuelIntroduction: Although scarce, regional telestroke networks have been developed worlwide in the last few decades. The COVID-19 pandemic put the healthcare system under exceptional pressure. We aimed to assess the impact of the first year of the COVID-19 pandemic on the telestroke network performance in the central region of mainland Portugal. Methods: Retrospective multicenter cohort study including the eight h...
Reconsidering the role of blood-brain barrier in Alzheimer's disease: From deli...
Sousa, João André; Bernardes, Catarina; Bernardo-Castro, Sara; Lino, Miguel; Albino, Inês; Ferreira, Lino; Brás, José; Guerreiro, RitaThe existence of a selective blood-brain barrier (BBB) and neurovascular coupling are two unique central nervous system vasculature features that result in an intimate relationship between neurons, glia, and blood vessels. This leads to a significant pathophysiological overlap between neurodegenerative and cerebrovascular diseases. Alzheimer's disease (AD) is the most prevalent neurodegenerative disease whose p...
Therapeutic Approaches for Stroke: A Biomaterials Perspective
Rodrigues, Artur Filipe; Rebelo, Catarina; Reis, Tiago; Sousa, João André; Pinho, Sónia L. C.; Sargento-Freitas, João; Peça, João; Ferreira, LinoStroke is a leading cause of death worldwide and poses significant societal and healthcare challenges due to functional impairment of the brain. In order to fully restore brain function, innovative approaches have aimed to regenerate the injured tissue and to restore neuronal circuitry. In the last 5 years, stem cells have been consistently explored in clinical trials for tissue regeneration. Recent technologic...
The Neurophysiological Impact of Subacute Stroke: Changes in Cortical Oscillati...
Dionísio, Ana; Gouveia, Rita; Castelhano, João; Duarte, Isabel; Santo, Gustavo C.; Sargento-Freitas, João; Branco, Miguel CasteloIntroduction. To design more effective interventions, such as neurostimulation, for stroke rehabilitation, there is a need to understand early physiological changes that take place that may be relevant for clinical monitoring. We aimed to study changes in neurophysiology following recent ischemic stroke, both at rest and with motor planning and execution. Materials and Methods. We included 10 poststroke patient...
Nationwide Access to Endovascular Treatment for Acute Ischemic Stroke in Portugal
Dias, Mariana Carvalho; Reis, Ricardo Soares dos; Santos, João Vasco; Nunes, Ana Paiva; Ferreira, Patricia; Maia, Bruno; Fragata, Isabel; Reis, JoaoIntroduction: Since the publication of endovascular treatment trials and European Stroke Guidelines, Portugal has re-organized stroke healthcare. The nine centers performing endovascular treatment are not equally distributed within the country, which may lead to differential access to endovascular treatment. Our main aim was to perform a descriptive analysis of the main treatment metrics regarding endovascular ...
Nationwide Access to Endovascular Treatment for Acute Ischemic Stroke in Portugal
Dias, Mariana Carvalho; dos Reis, Ricardo Soares; Santos, João Vasco; Nunes, Ana Paiva; Ferreira, Patricia; Maia, Bruno; Fragata, Isabel; Reis, JoaoIntroduction: Since the publication of endovascular treatment trials and European Stroke Guidelines, Portugal has re-organized stroke healthcare. The nine centers performing endovascular treatment are not equally distributed within the country, which may lead to differential access to endovascular treatment. Our main aim was to perform a descriptive analysis of the main treatment metrics regarding endovascular ...
Non-vitamin K antagonist oral anticoagulation versus left atrial appendage occl...
Paiva, Luís; Coelho, José; Barra, Sérgio; Costa, Marco; Sargento-Freitas, João; Cunha, Luís; Gonçalves, LinoIntroduction: This study aimed to evaluate the performance of non-vitamin K antagonist oral anticoagulation (NOAC) in patients with previous stroke and non-valvular atrial fibrillation (AF) compared with left atrial appendage occlusion (LAAO) in primary and secondary stroke prevention settings. Methods: This was a prospective, single-center, non-randomized cohort study of 302 consecutive patients with non-valvu...
The Role of Continuous Theta Burst TMS in the Neurorehabilitation of Subacute S...
Dionísio, Ana; Gouveia, Rita; Castelhano, João; Duarte, Isabel Catarina; Santo, Gustavo C.; Sargento-Freitas, João; Duecker, FelixObjectives: Transcranial magnetic stimulation, in particular continuous theta burst (cTBS), has been proposed for stroke rehabilitation, based on the concept that inhibition of the healthy hemisphere helps promote the recovery of the lesioned one. We aimed to study its effects on cortical excitability, oscillatory patterns, and motor function, the main aim being to identify potentially beneficial neurophysiolog...
Therapeutic Nanoparticles for the Different Phases of Ischemic Stroke
Bernardo-Castro, Sara; Albino, Inês; Barrera-Sandoval, Ángela María; Tomatis, Francesca; Sousa, João André; Martins, Emanuel; Simões, SusanaStroke represents the second leading cause of mortality and morbidity worldwide. Ischemic strokes are the most prevalent type of stroke, and they are characterized by a series of pathological events prompted by an arterial occlusion that leads to a heterogeneous pathophysiological response through different hemodynamic phases, namely the hyperacute, acute, subacute, and chronic phases. Stroke treatment is highl...