Results 21 to 30 of about 27,537,437 (135)

Electrocardiographic parameters in captive, clinically healthy, Amazona ochrocephala [PDF]

Revista Mvz Cordoba, 2015
Objective. To stablish the electrocardiographic parameters of individuals of the species Amazona ochrocephala, from the Unidad de Rescate y Rehabilitacion de Animales Silvestres at the Universidad Nacional de Colombia. Materials and methods.
Claudia Guerrero S, Janeth Bolivar B, Piero Vargas-Pinto, Pedro Vargas-Pinto, Claudia Brieva-Rico   +4 more
doaj   +3 more sources

Change in P wave morphology after convergent atrial fibrillation ablation

Indian Pacing and Electrophysiology Journal, 2016
Convergent atrial fibrillation ablation involves extensive epicardial as well as endocardial ablation of the left atrium. We examined whether it changes the morphology of the surface P wave.
Suvash Shrestha, On Chen, Mary Greene, Jinu Jacob John, Yisachar Greenberg, Felix Yang   +5 more
doaj   +1 more source

Atrial conduction explains the occurrence of the P‐wave dispersion phenomenon, but weakly

Journal of Arrhythmia, 2020
Background P‐wave dispersion (PWD) is believed to be caused by inhomogeneous atrial conduction. This statement, however, is based on limited little solid evidence.
Raimundo Carmona Puerta, Elibet Chávez González, Magda Alina Rabassa López‐Calleja, Elizabeth Lorenzo Martínez, Juan Miguel Cruz Elizundia, Gustavo Padrón Peña, Fernando Rodríguez González   +6 more
doaj   +1 more source

Atrial time and voltage dispersion are both needed to predict new-onset atrial fibrillation in ischemic stroke patients

BMC Cardiovascular Disorders, 2017
Background Atrial fibrillation (AF) is a known risk factor for ischemic stroke. Electrocardiographic predictors of AF in population studies such as the Framingham Heart Study, as well as in hypertensive patients have demonstrated a predictive value of ...
Daniel Cortez, Maria Baturova, Arne Lindgren, Jonas Carlson, Yuri V. Shubik, Bertil Olsson, Pyotr G. Platonov   +6 more
doaj   +1 more source

Effect of transcatheter aortic valve replacement on P-wave duration, P-wave dispersion and left atrial size. [PDF]

J Geriatr Cardiol, 2015
Background P-wave dispersion (PWD), a measure of heterogeneity of atrial refractoriness, is defined as the difference between the maximum and minimum P-wave duration.
Dursun H, Tanriverdi Z, Colluoglu T, Kaya D.   +3 more
europepmc   +2 more sources

P-Wave and QRS complex duration.

, 2015
Uncomplicated pregnancy, was not associated with alterations in P-Wave or QRS duration compared to never-pregnant controls. Late postpartum (6–8 months), PE subjects exhibited increased duration in both P-wave and QRS complexes.
Damian P. Redfearn (800165), Geoffrey E. J. Seaborn (800164), Malia S. Q. Murphy (800163), Graeme N. Smith (627562)   +3 more
core   +1 more source

Electrocardiogram voltage attenuation and shortening of the duration of P-waves, QRS complexes, and QT intervals

Indian Heart Journal, 2013
Multiple pathologies in concert may lead to attenuation of the electrocardiogram (ECG) voltage. A case of a patient illustrating the above is presented, who showed marked attenuation of the ECG voltage.
John E. Madias
doaj   +1 more source

P-wave dispersion: an update

Indian Pacing and Electrophysiology Journal, 2016
P-wave dispersion (PWD, Pd or Pdis) is a noninvasive electrocardiographic (ECG) marker for atrial remodeling and predictor for atrial fibrillation (AF).
Andrés Ricardo Pérez-Riera, Luiz Carlos de Abreu, Raimundo Barbosa-Barros, José Grindler, Acácio Fernandes-Cardoso, Adrian Baranchuk   +5 more
doaj   +1 more source

P wave duration and morphology in patients with atrial fibrillation [PDF]

, 2020
Background: Functional and structural atrial changes contribute to AF. It decreases conduction velocity and forms intra atrial blocks. In the ECG those changes are manifested by the duration and morphology of the P wave.
Mercik, Jakub Szymon, Wolff, Peter Stephan, Gajek, Jacek, Marinov, Maxim, Radziejewska, Jadwiga, Unkell, Malte, Maxim Marinov, Jadwiga Radziejewska, Jacek Gajek, Jakub Mercik, Malte Unkell, Peter Wolff   +11 more
core   +2 more sources

The Role of P Wave Parameters in Predicting Pulmonary Vein Isolation Outcomes for Paroxysmal Atrial Fibrillation: An Observational Cohort Study

Journal of Cardiovascular Development and Disease
Background: Pulmonary vein isolation (PVI) is an effective management method for paroxysmal atrial fibrillation (PAF). The P wave in the 12-lead electrocardiogram (ECG) represents atrial depolarisation.
Ibrahim Antoun, Xin Li, Ahmed I. Kotb, Zakkariya Vali, Ahmed Abdelrazik, Abdulmalik Koya, Akash Mavilakandy, Ivelin Koev, Ali Nizam, Hany Eldeeb, Riyaz Somani, André Ng   +11 more
doaj   +1 more source