55 research outputs found
Apnea Obstructiva del Sueño y Funcionamiento Ejecutivo
[ES] El objetivo de esta investigación es analizar el funcionamiento ejecutivo (FE), el ajuste emocional y la calidad de vida en pacientes con Apnea Obstructiva de Sueño (AOS) de diferente grado de severidad, comparándolos con sujetos normales.
Participaron voluntariamente 60 sujetos, de ambos sexos, entre los 30 y los 65 años de edad (M=52,65; DE=9,88), de los cuales 20 no tenían ninguna sintomatología de trastorno del sueño y 40 estan diagnosticados de AOS a través de polisomnografía nocturna estándar, no tratados médicamente y sin comorbilidades asociadas.
Los 3 grupos (n=20, sin síntomas; n=20, diagnosticados de AOS leve-moderada; n=20, diagnosticados de AOS severa) se compararon a través de una batería para valoración del FE (con las medidas más utilizadas y en los dominios más señalados en los estudios sobre AOS) y de instrumentos de valoración psicométrica del ajuste emocional (BDI-II; SCL-90-R) y de la calidad de vida (SF-36).
Se verificaran diferencias entre los grupos con y sin AOS en diversos dominios del FE, en el ajuste emocional y en calidad de vida. Sin embargo, al comparar los grupos de distinta severidad de la AOS, sólo se encontraron diferencias en una subescala del SF-36. Se verificaran asociaciones entre diferentes dominios del FE y el ajuste emocional y la calidad de vida, en sujetos con AOS de diferente severidad.
El Indice de Apneas/Hipopneas no se mostró coherente en las supuestas diferencias de la severidad de la AOS en variables neuropsicológicas y emocionales e funcionales
Psychopathology in obstructive sleep apnea : the role of severity of the apnea / hypopnea index
info:eu-repo/semantics/publishedVersio
Sensitivity and specificity of Frontal Assessment Battery in newly diagnosed and untreated Obstructive Sleep Apnea patients
Background: Executive dysfunction (ED) is often observed in subjects diagnosed with obstructive sleep
apnea (OSA), but their assessment requires facilities that are not always available.We aim to evaluate the
extent to which Frontal Assessment Battery (FAB) discriminates ED in newly diagnosed, untreated, and
without-comorbidity OSA patients.
Methods: Sixty subjects participated in the study. Of these, 40 (31 males and 9 females) were newly
diagnosed for OSA through full-night polysomnography (apnea/hypopnea index; M . 39.01, SD . 27.16),
untreated, with a mean age of 54.50 years (SD . 8.90), while the remaining 20 (15 males and 5 females)
had no symptoms of OSA (M . 51.60 years, SD . 10.70). The instruments used were the following:
Questionnaire for Sleep Apnea Risk, Epworth Sleepiness Scale, Mini-Mental State Examination, and FAB.
Results: The group with OSA exhibited significantly lower values in the FAB global score (p . 0.003) and
in Conceptualization (p . 0.001) and Mental Flexibility (p . 0.009) subtests. ROC analysis showed
adequate discriminative capacity for the FAB global score (AUC . 0.74) and for Conceptualization
(AUC . 0.75) and Mental Flexibility (AUC . 0.70) scores.
Conclusions: The FAB is a short and no-time-consuming tool that can be used to investigate the presence
of ED in untreated OSA patients with no comorbidities, providing clinicians with a simple and effective
way of detecting the presence of this dysfunction and allowing a more informed decision for the need of
a full neuropsychological assessment
Supporting unified distributed management and autonomic decisions: design, implementation and deployment
Nowadays, the prevailing use of networks based on traditional centralized management systems reflects on a fast increase of the management costs. The growth in the number of network equipments and services reinforces the need to distribute the management responsibilities throughout the network devices. In this approach, each device executes common network management functionalities, being part of the overall network management platform. In this paper, we present a Unified Distributed Network Management (UDNM) framework that provides a unified (wired and wireless) management network solution, where further different network services can take part of this infrastructure, e.g., flow monitoring, accurate routing decisions, distributed policies dissemination, etc. This framework is divided in two main components: (A) Situation awareness, which sets up initial information through bootstrapping, discovery, fault-management process and exchange of management information; (B) Autonomic Decision System (ADS) that performs distributed decisions in the network with incomplete information. We deploy the UDNM framework in a testbed which involves two cities (
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250 km between), different standards (IEEE 802.3, IEEE 802.11 and IEEE 802.16e) and network technologies, such as, wired virtual grid, wireless ad-hoc gateways, ad-hoc mobile access devices. The UDNM framework integrates management functionalities into the managed devices, proving to be a lightweight and easy-respond framework. The performance analysis shows that the UDNM framework is feasible to unify devices management functionalities and to take accurate decisions on top of a real network.info:eu-repo/semantics/publishedVersio
Experimental evaluation of the usage of ad hoc networks as stubs for multiservice networks
This paper describes an experimental evaluation of a multiservice ad hoc network, aimed to be interconnected with an infrastructure, operator-managed network. This network supports the efficient delivery of services, unicast and multicast, legacy and multimedia, to users connected in the ad hoc network. It contains the following functionalities: routing and delivery of unicast and multicast services; distributed QoS mechanisms to support service differentiation and resource control responsive to node mobility; security, charging, and rewarding mechanisms to ensure the correct behaviour of the users in the ad hoc network. This paper experimentally evaluates the performance of multiple mechanisms, and the influence and performance penalty introduced in the network, with the incremental inclusion of new functionalities. The performance results obtained in the different real scenarios may question the real usage of ad-hoc networks for more than a minimal number of hops with such a large number of functionalities deployed
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