Search Results - "Orini, M"

Photoplethysmography pulse rate variability as a surrogate measurement of heart rate variability during non-stationary conditions by Gil, E, Orini, M, Bailón, R, Vergara, J M, Mainardi, L, Laguna, P

“…In this paper we assessed the possibility of using the pulse rate variability (PRV) extracted from the photoplethysmography signal as an alternative…”
Get more information

Mechano-electrical feedback in the clinical setting: Current perspectives by Orini, M., Nanda, A., Yates, M., Di Salvo, C., Roberts, N., Lambiase, P.D., Taggart, P.

“…Mechano-electric feedback (MEF) is an established mechanism whereby myocardial deformation causes changes in cardiac electrophysiological parameters. Extensive…”
Get full text

Emerging evidence for a mechanistic link between low-frequency oscillation of ventricular repolarization measured from the electrocardiogram T-wave vector and arrhythmia by Taggart, Peter, Pueyo, Esther, Duijvenboden, Stefan van, Porter, Bradley, Bishop, Martin, Sampedro-Puente, David A, Orini, M, Hanson, B, Rinaldi, Christopher A, Gill, Jaswinder S, Lambiase, Pier

“…Abstract Strong recent clinical evidence links the presence of prominent oscillations of ventricular repolarization in the low-frequency range (0.04–0.15 Hz)…”
Get full text

Left atrial scarring and conduction velocity dynamics: Rate dependent conduction slowing predicts sites of localized reentrant atrial tachycardias by Honarbakhsh, S., Schilling, R.J., Orini, M., Providencia, R., Finlay, M., Keating, E., Lambiase, P.D., Chow, A., Earley, M.J., Sporton, S., Hunter, R.J.

“…Low voltage zones (LVZs) are associated with conduction velocity (CV) slowing. Rate-dependent CV slowing may play a role in reentry mechanisms. Patients…”
Get full text

Assessment of a conduction-repolarisation metric to predict Arrhythmogenesis in right ventricular disorders by Martin, C.A., Orini, M., Srinivasan, N.T., Bhar-Amato, J., Honarbakhsh, S., Chow, A.W., Lowe, M.D., Ben-Simon, R., Elliott, P.M., Taggart, P., Lambiase, P.D.

“…The re-entry vulnerability index (RVI) is a recently proposed activation-repolarization metric designed to quantify tissue susceptibility to re-entry. This…”
Get full text

Assessment of the dynamic interactions between heart rate and arterial pressure by the cross time-frequency analysis by Orini, M, Laguna, P, Mainardi, L T, Bailón, R

“…In this study, a framework for the characterization of the dynamic interactions between RR variability (RRV) and systolic arterial pressure variability (SAPV)…”
Get more information

Does the inverse activation time/action potential duration relationship apply to the in vivo human heart? by Orini, M, Hanson, B.M, Bufacchi, R, Hayward, M, Jie, X, Taggart, P, Lambiase, P.D

Get full text

Cross Time-Frequency Analysis for Combining Information of Several Sources : Application to Estimation of Spontaneous Respiratory Rate from Photoplethysmography by Peláez-Coca, M. D., Orini, M., Lázaro, J., Bailón, Raquel, Gil, E.

“…A methodology that combines information from several nonstationary biological signals is presented. This methodology is based on time-frequency coherence, that…”
Get full text

Ventricular tachycardia initiation patterns on electrograms of implantable defibrillator devices by Ganeswaran, T, Monkhouse, C, Orini, M, Walker, A, Srithar, K

“…Abstract Introduction Sudden cardiac death is an unexpected death from a cardiac origin attributed by arrhythmias such as ventricular fibrillation (VF) and…”
Get full text

Circulating metabolites associate with the QT interval in individuals without prevalent cardiovascular disease by Young, W, Sanghvi, M M, Ramirez, J, Orini, M, Tinker, A, Warren, H R, Lambiase, P D, Munroe, P B

“…Abstract Background Patients with metabolic syndrome have a higher prevalence of heart-rate corrected QT (QTc) interval prolongation. Despite this the effect…”
Get full text

Endo- and epicardial mapping of spontaneous ventricular fibrillation during acute myocardial infarction in a porcine model by Sattler, S, Hesselkilde, E Z, Orini, M, Taggart, P, Pehrson, S, Jespersen, T, Tfelt-Hansen, J

“…Abstract Introduction Ventricular fibrillation (VF) during the first minutes of acute myocardial infarction (AMI) is among the most frequent causes of sudden…”
Get full text

Combining hypothesis-driven ECG indices with machine learning improves ventricular arrhythmic risk prediction in a low-risk population by Ramirez, J, Martinez, J P, Van Duijvenboden, S, Tinker, A, Lambiase, P, Orini, M, Munroe, P B, Miguel, A

“…Abstract Background Life-threatening ventricular arrhythmias (LTVA) are a leading cause of mortality, but early identification of high-risk individuals remains…”
Get full text

Prediction of coronary artery disease and major adverse cardiovascular events using clinical and genetic risk scores for cardiovascular risk factors by Ramírez, J., Van Duijvenboden, S., Young, W., Tinker, A., Lambiase, P., Orini, M., Munroe, P.

Get full text

Long-term time-to-ventricular arrhythmic event prediction using a deep learning based model on the electrocardiogram signal by Ramirez, J, Martinez, J P, Van Duijvenboden, S, Young, W J, Tinker, A, Lambiase, P D, Orini, M, Munroe, P B, Miguel, A

“…Abstract Background Ventricular arrhythmias (VA) risk stratification tools in individuals without known cardiovascular disease are still insufficient. Previous…”
Get full text

Reliability of APD-restitution slope measurements: Quantification and methodological comparison by Orini, M., Srinivasan, N., Taggart, P., Lambiase, P.

“…The restitution of the action potential duration (APDR) is an important physiological property of the cardiac tissue and it is related to the development of…”
Get full text

Respiratory rate estimation from multilead directions, based on ECG delineation by Noriega, M., Maranon, E. J., Romero, D., Orini, M., Almeida, R.

“…Estimating the instantaneous respiratory rate (Rr) from the electrocardiogram (ECG) is of interest as respiration direct measurement in clinical situations is…”
Get full text

P-354 Advanced Paternal Age (APA) amplifies cryopreservation-induced stress in human spermatozoa by Pérez Casasús, S, Luongo, F  P, Haxhiu, A, Governini, L, Scupoli, G, Orini, M, Del Canto, M, Buratini, J, Morgante, G, Piomboni, P, Luddi, A

“…Abstract Study question Does paternal age intensify the negative effects of cryopreservation on sperm quality? Summary answer Paternal age exacerbates the…”
Get full text

Ultra-short heart rate variability over 15 seconds is associated with increased long-term risk of cardiovascular disease by Orini, M, Van Duijvenboden, S, Young, W J, Ramirez, J, Jones, A R, Tinker, A, Munroe, P B, Lambiase, P D

“…Abstract Background Heart rate variability (HRV) is an established cardiac autonomic marker with prognostic value, whose application at scale is limited by the…”
Get full text

O-070 Paternal age is associated with mitochondrial vulnerability to sperm cryopreservation by Turchi, D, Orini, M, Piomboni, P, Luddi, A, Novara, P V, Luciano, A M, Maruccia, S, Mignini Renzini, M, Dal Canto, M, Buratini, J

“…Abstract Study question Is paternal age associated with lower mitochondrial activity in fresh and cryopreserved semen? Summary answer Paternal age does not…”
Get full text

The genetic architecture of exercise-induced ventricular ectopy by Van Duijvenboden, S, Nicholson, G, Smith-Byrne, K, Portas, L, Atkins, J, Ramirez, J, Orini, M, Young, W J, Tinker, A, Lambiase, P D, Munroe, P B, Doherty, A

“…Abstract Background Previously, we have shown that the frequency of exercise-induced premature ventricular contractions (PVCs) during and after exercise are…”
Get full text