Exploració per autor "Gomis Román, Pedro"
Ara es mostren els items 11-30 de 40
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ECG-based monitoring of blood potassium concentration: Periodic versus principal component as lead transformation for biomarker robustness
Palmieri, Flavio; Gomis Román, Pedro; Ruiz Laiglesia, José Esteban; Ferreira, Dina; Martín-Yebra, Alba; Pueyo Paules, Esther; Martínez Cortés, Juan Pablo; Ramírez, Julia; Laguna, Pablo (2021-07)
Article
Accés obertObjective: The aim of this study is to compare the performance of two electrocardiogram (ECG) lead-space reduction (LSR) techniques in generating a transformed ECG lead from which T-wave morphology markers can be reliably ... -
Effect of acute myocardial ischemia on different high-frequency bandwidths and temporal regions of the QRS
Magrans Nicieza, Rudys; Gomis Román, Pedro; Voss, Andreas; Caminal Magrans, Pere (IEEE, 2011)
Comunicació de congrés
Accés restringit per política de l'editorialThe purpose of this study was to describe the changes in high-frequency QRS (HF-QRS) components due to myocardial ischemia provoked by prolonged artery occlusion during percutaneous coronary interventions (PCI). ... -
Electrophysiological effects of selective atrial coronary artery occlusion in humans
Álvarez-García, Jesus; Vives Borras, Miquel; Gomis Román, Pedro; Ordoñez Llanos, Jordi; Ferrero-Gregori, Andreu; Serra Peñaranda, Antoni; Cinca Cuscullola, Juan Maria (2016-06-07)
Article
Accés obertBackground-The arrhythmogenesis of ventricular myocardial ischemia has been extensively studied, but models of atrial ischemia in humans are lacking. This study aimed at describing the electrophysiological alterations ... -
Estimación espectral de señales biomédicas. Métodos clásicos (FFT) y paramétricos: aplicaciones prácticas con Matlab
Gomis Román, Pedro (Universitat Politècnica de Catalunya, 2013)
Exercici de pràctiques
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Estudio de los cambios en la morfología de las ondas T como sustituto de la concentración de potasio en sangre en pacientes de hemodiálisis
Palmieri, Flavio; Gomis Román, Pedro; Ferreira, Dina; Ruiz, José Esteban; Ruiz, José Esteban; Bergasa, Beatriz; Martín-Yebra, Alba; Bukhari, H.A.; Pueyo, Esther; Martínez, Juan Pablo; Ramírez, Julia; Laguna, Pablo (Sociedad Española de Ingeniería Biomédica (SEIB), 2019)
Text en actes de congrés
Accés obertLos pacientes con enfermedad renal crónica (en inglés end-stage renal disease .ESRD) que se someten a hemodiálisis (HD) tienen un alto riesgo de arritmias y muerte súbita cardiaca como resultado de los cambios en la ... -
Heart rate complexity analysis in Brugada syndrome during physical stress testing
Calvo González, Mireia; Gomis Román, Pedro; Romero Pérez, Daniel; Le Rolle, Virginie; Béhar, Nathalie; Mabo, Philippe; Hernández, Alfredo I. (Institute of Physics (IOP), 2017-02-01)
Article
Accés obertSymptoms such as ventricular arrhythmias in Brugada syndrome (BS) typically occur at rest, especially during sleep, suggesting that the autonomic nervous system (ANS) function may be relevant in the arrhythmogenesis of the ... -
Heart rate differences between symptomatic and asymptomatic Brugada syndrome patients at night
Calvo González, Mireia; Le Rolle, Virginie; Romero, Daniel; Gomis Román, Pedro (Institute of Physics (IOP), 2018-06-01)
Article
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Higuchi's fractal complexity of RR and QT interval series during transient myocardial ischemia
Magrans Nicieza, Rudys; Gomis Román, Pedro; Caminal Magrans, Pere; Voss, Andreas (2013)
Text en actes de congrés
Accés restringit per política de l'editorialMyocardial ischemia may lead to significant changes in autonomic control of heart rate (HR) affecting its variability and alter beat-to-beat ventricular repolarization periods. We hypothesized that transient myocardial ... -
Low level and high frequency fragmentation of the QRS changes during acute myocardial ischemia in patients with and without prior myocardial infarction
Gomis Román, Pedro; Caminal Magrans, Pere (Computing in Cardiology, 2014)
Comunicació de congrés
Accés obertHigh frequency (HF) QRS fragmentation and very-low amplitude abnormal intra-QRS potential (uAIQP) analyses have been used to track ischemic changes during coronary artery occlusions. The aim of this study was to assess the ... -
Model-based analysis of the autonomic response to head-up tilt testing in Brugada syndrome
Calvo, Mireia; Le Rolle, Virginie; Romero, Daniel; Gomis Román, Pedro; Hernández, Alfredo I. (Elsevier, 2018-12-01)
Article
Accés obertThe etiology of Brugada syndrome (BS) is complex and multifactorial, making risk stratification in this population a major challenge. Since changes in the autonomic modulation of these patients are commonly related to ... -
Monitoring blood potassium concentration in hemodialysis patients by quantifying T-wave morphology dynamics
Palmieri, Flavio; Gomis Román, Pedro; Ferreira, Dina; Ruiz, José Esteban; Bergasa, Beatriz; Martín-Yebra, Alba; Bukhari, H.A.; Pueyo Paules, Esther; Mártinez, Juan Pablo; Ramírez, Julia; Laguna, Pablo (Nature, 2021-02-16)
Article
Accés obertWe investigated the ability of time-warping-based ECG-derived markers of T-wave morphology changes in time (dw) and amplitude (da), as well as their non-linear components (dNLw and dNLa), and the heart rate corrected ... -
Monitorización en diálisis de la concentración de potasio en sangre mediante los cambios en la morfología multi-lead de la onda T: comparación entre usar la transformación en componentes periódicas y principales
Palmieri, Flavio; Gomis Román, Pedro; Ruiz, José Esteban; Ferreira, Dina; Martín-Yebra, Alba; Pueyo, Esther; Laguna, Pablo; Mártinez, Juan Pablo; Ramírez, Julia (Sociedad Española de Ingeniería Biomédica (SEIB), 2020)
Text en actes de congrés
Accés obertAntecedentes Los pacientes con enfermedad renal en etapa terminal (ESRD) sometidos a terapia de hemodiálisis (HD) experimentan variaciones de potasio en sangre ([¿¿+]) que se reflejan en la morfología de la onda T (TW) del ... -
Multifractal characterization of the autonomous nervous system during prolonged coronary artery occlusion
Magrans Nicieza, Rudys; Gomis Román, Pedro; Caminal Magrans, Pere; Wagner, Galen (2009)
Comunicació de congrés
Accés obertWe assess the autonomic nervous system response during prolonged percutaneous transluminal coronary angioplasty (PTCA) by heart rate variability analysis using multifractal indices. These indices are also used to evaluate ... -
Multivariate classification of Brugada syndrome patients based on autonomic response to exercise testing
Calvo, Mireia; Romero, Daniel; Le Rolle, Virginie; Béhar, Nathalie; Gomis Román, Pedro; Mabo, Philippe; Hernández, Alfredo I. (Public Library of Science (PLOS), 2018-05-15)
Article
Accés obertVentricular arrhythmias in Brugada syndrome (BS) typically occur at rest and especially during sleep, suggesting that changes in the autonomic modulation may play an important role in arrhythmogenesis. The autonomic response ... -
Multivariate classification of Brugada syndrome patients based on the autonomic response during sleep, exercise and head-up tilt testing
Calvo González, Mireia; Le Rolle, Virginie; Romero Pérez, Daniel; Béhar, Nathalie; Gomis Román, Pedro; Mabo, Philippe; Hernández Rodríguez, Alfredo Ignacio (2019)
Text en actes de congrés
Accés obertMultivariate Classification of Brugada Syndrome Patients Based on the Autonomic Response During Sleep, Exercise and Head-up Tilt Testing Several autonomic markers were estimated overnight and during exercise and head-up ... -
Myocardial ischemia events detection based on support vector machines using QRS and ST features
Magrans Nicieza, Rudys; Gomis Román, Pedro; Caminal Magrans, Pere (Computing in Cardiology, 2016)
Comunicació de congrés
Accés obertThis study aimed to develop a nonlinear support vector machine (SVM) model to detect ischemic events based on a dataset of QRS-derived and ST indices from nonischemic and acute ischemic episodes. The study included 67 ... -
Nonlinear T-wave time warping-based sensing model for non-invasive personalised blood potassium monitoring in hemodialysis patients: a pilot study
Palmieri, Flavio; Gomis Román, Pedro; Ruiz Laiglesia, José Esteban; Ferreira, Dina; Martín-Yebra, Alba; Pueyo, Esther; Martínez, Juan Pablo; Ramírez, Julia; Laguna, Pablo (Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-12)
Article
Accés obertBackground: End-stage renal disease patients undergoing hemodialysis (ESRD-HD) therapy are highly susceptible to malignant ventricular arrhythmias caused by undetected potassium concentration ([K+]) variations (¿[K+]) out ... -
Potassium monitoring from multilead T-wave morphology changes during hemodyalisis: periodic versus principal component analysis
Palmieri, Flavio; Gomis Román, Pedro; Ferreira, Dina; Ruiz, José Esteban; Martín-Yebra, Alba; Pueyo, Esther; Laguna Lasaosa, Pablo; Mártinez, Juan Pablo; Ramírez, Julia (2020)
Comunicació de congrés
Accés obertBackground: End-stage renal disease (ESRD) patients undergoing hemodyalisis therapy (HD) experience blood potassium ([K+]) variations that are reflected on the T-wave (TW) morphology. Methods: We evaluated the performance ... -
Recursive model identification for the analysis of the autonomic response to exercise testing in Brugada syndrome
Calvo González, Mireia; Le Rolle, Virginie; Romero Pérez, Daniel; Béhar, Nathalie; Gomis Román, Pedro; Mabo, Philippe; Hernández Rodríguez, Alfredo Ignacio (2019-01-01)
Article
Accés obertThis paper proposes the integration and analysis of a closed-loop model of the baroreflex and cardiovascular systems, focused on a time-varying estimation of the autonomic modulation of heart rate in Brugada syndrome (BS), ... -
Research utilities in Matlab for ANVERSO project: Continuous and automatic analysis of electrocardiographic variables associated with the risk of sudden death in patients with Brugada syndrome
Gomis Román, Pedro (2023-01-09)
Report de recerca
Accés obert