Browsing by Subject "Apnea"
Now showing items 1-19 of 19
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Anàlisi de la interacció entre els senyals cardíac, respiratori i de flux sanguini cerebral
(Universitat Politècnica de Catalunya, 2020-10-16)
Bachelor thesis
Restricted access - author's decisionEl projecte es basa en l’estudi del comportament del flux sanguini cerebral a partir de la tècnica d’espectroscòpia de correlació difusa quan es produeixen apnees i quan no, paral·lelament amb els senyals cardíac i ... -
Automatic differentiation of obstructive and central hypopneas with esophageal pressure measurement during sleep
(2009)
Conference report
Open AccessThe differentiation between obstructive and central respiratory events is one of the most recurrent tasks in the diagnosis of sleep disordered breathing. Esophageal pressure measurement is the gold-standard method to ... -
Autonomic nervous system response analysis in patients suffering from sleep apnea syndrome
(Universitat Politècnica de Catalunya, 2017-06)
Bachelor thesis
Open AccessSleep apnea syndrome (SAS) is an underdiagnosed disease affecting up to 5% of the general population. It is a multifactorial disease characterized by repeated episodes of breathing pauses (apnea) or significant reduction ... -
Cephalometry of upper airways using mandibular advancement devices in obstructive sleep apnea
(Universitat Politècnica de Catalunya, 2015-01-13)
Bachelor thesis
Open AccessEl principal objectiu del present projecte ha consistit en veure quina és la correlació existent entre la morfologia de les vies aèries superiors (concretament la faringe) i la utilització del dispositiu d’avanç mandibular ... -
Cerebral vasoreactivity in response to a headof-bed position change is altered in patients with moderate and severe obstructive sleep apnea
(PLOS, 2018-03-18)
Article
Open AccessObstructive sleep apnea (OSA) can impair cerebral vasoreactivity and is associated with an increased risk of cerebrovascular disease. Unfortunately, an easy-to-use, non-invasive, portable monitor of cerebral vasoreactivity ... -
Comparison of upper airway respiratory resistance measurements with the esophageal pressure/airflow relationship during sleep
(2011)
Conference report
Restricted access - publisher's policyMeasurement of upper airway resistance is of interest in sleep disordered breathing to estimate upper airway patency. Resistance is calculated with the airflow and respiratory effort signals. However, there is no consensus ... -
Desarrollo y evaluación de diferentes métodos de detección de apnea a partir de la señal electrocardiográfica (ECG)
(Universitat Politècnica de Catalunya, 2009-06-30)
Master thesis (pre-Bologna period)
Open AccessEl desarrollo y la mejora de distintos métodos de detección del síndrome de la apnea obstructiva del sueño (SAOS) a partir de únicamente la señal electrocardiográfica (ECG) es la base del proyecto realizado. Hasta ahora ... -
Diferenciación automática de hipopneas mediante la señal de presión esofágica durante el sueño
(2009)
Conference report
Restricted access - publisher's policyLa diferenciación entre hipopneas obstructivas y centrales es uno de los trabajos más recurrentes en el diagnóstico de los trastornos respiratorios del sueño. La medición de presión esofágica (Pes) es el método gold-standard ... -
Evaluación de la vía aérea superior en sujetos con SAHS mediante análisis del sonido respiratorio durante vigilia
(2014)
Conference report
Open AccessEl Síndrome de Apnea-Hipopnea del Sueño (SAHS) actualmente se diagnostica mediante la Polisomnografía (PSG), una prueba cara y costosa. Se han propuesto diversas alternativas para ayudar al cribado previo de SAHS. En ... -
Identification of Obstructive Sleep Apnea patients from tracheal breath sound analysis during wakefulness in polysomnographic studies
(2014)
Conference report
Restricted access - publisher's policyObstructive Sleep Apnea (OSA) is currently diagnosed by a full nocturnal polysomnography (PSG), a very expensive and time-consuming method. In previous studies we were able to distinguish patients with OSA through formant ... -
Obstructive sleep apnea severity affects amyloid burden in cognitively normal elderly a longitudinal study
(2018-04-01)
Article
Open AccessRecent evidence suggests that Obstructive Sleep Apnea (OSA) may be a risk factor for developing Mild Cognitive Impairment and Alzheimer’s disease. However, how sleep apnea affects longitudinal risk for Alzheimer’s disease ... -
Physiological and geometrical effects in the upper airways with and without mandibular advance device for sleep apnea treatment
(Nature, 2020-03-24)
Article
Open AccessSleep apnea is a sleep disorder that occurs when the breathing of a person is interrupted during the sleep. This interruption occurs because of the patient has narrowed airways and the upper airways muscles relax, closes ... -
Poincaré plot analysis of cerebral blood flow signals : feature extraction and classification methods for apnea detection
(Public Library of Science (PLOS), 2018-12-07)
Article
Open AccessObjective: Rheoencephalography is a simple and inexpensive technique for cerebral blood flow assessment, however, it is not used in clinical practice since its correlation to clinical conditions has not yet been extensively ... -
Protocol d'enregistrament de senyals fisiològics per a analitzar l’efecte d'apnees controlades en subjectes sans
(Universitat Politècnica de Catalunya, 2021-07-06)
Bachelor thesis
Restricted access - confidentiality agreement -
Reconstrucción 3D de objetos a partir de una secuencia multimodal de imágenes
(Universitat Politècnica de Catalunya, 2020-01-31)
Bachelor thesis
Open AccessA lo largo del siglo XXI la reconstrucción e impresión en 3D se ha ido desarrollado en gran medida puesto que es uno de los avances tecnológicos más prometedores utilizado en cualquier sector o área que lo requiera. La ... -
Regular and non regular snore features as markers of SAHS
(2010)
Conference report
Open AccessSleep Apnea-Hypopnea Syndrome (SAHS) diagnosis is still done with an overnight multi-channel polysomnography. Several efforts are being made to study profoundly the snore mechanism and discover how it can provide an ... -
Respiratory and spontaneous arousals in patients with sleep apnea hypopnea syndrome
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Conference report
Restricted access - publisher's policySleep in patients with Sleep Apnea-Hypopnea Syndrome (SAHS) is frequently interrupted with arousals. Increased amounts of arousals result in shortening total sleep time and repeated sleep-arousal change can result in sleep ... -
SmartBed, el futur del llit
(Universitat Politècnica de Catalunya, 2016-10)
Bachelor thesis
Restricted access - author's decision
Covenantee: Hospital Universitari General de Catalunya / Fundación Estivill SueñoAlgunes de les accions que realitzem diàriament no tenen en compte els possibles perjudicis per al descans físic i mental del nostre cos, podent derivar en patologies del son com l’insomni o les apnees, que estan en ... -
Tractament de senyals per l'ajut a la diagnosi de l'apnea del son
(Universitat Politècnica de Catalunya, 2017-10-02)
Bachelor thesis
Open AccessDiversos estudis científics han observat un lligam entre la falta d’oxigenació del cervell a causa de les parades en els cicles respiratoris derivada de la presència d’apnees i l’aparició prematura de patologies que no ...
