Results 31 to 40 of about 798,107 (304)

Arrhythmic risk in elderly patients candidates to transcatheter aortic valve replacement. predicative role of repolarization temporal dispersion [PDF]

, 2019
Degenerative aortic valve stenosis (AS) is associated to ventricular arrhythmias and sudden cardiac death, as well as mental stress in specific patients. In such a context, substrate, autonomic imbalance as well as repolarization dispersion abnormalities ...
Crapanzano, Davide, DI IORIO, Claudia, Fabietti, Marcella, Magri', Damiano, Mariani, MARCO VALERIO, Mastropietri, Fabiola, Moscucci, Federica, Parrotta, Ilaria, Piccirillo, Gianfranco, Sabatino, Teresa, Salvi, Nicolo', Vespignani, Giulia   +11 more
core   +1 more source

The Effects of Local Anaesthetics on QT Parameters during Thoracic Epidural Anaesthesia Combined with General Anaesthesia: Ropivacaine versus Bupivacaine

Balkan Medical Journal, 2013
Background: Many studies focusing on the effects of local anaesthetics on QT intervals have been performed, but the articles evaluating the relationship between thoracic epidural anaesthesia combined with general anaesthesia and QT parameters are very ...
Özlem Güven, Hilal Sazak, Ali Alagöz, Eser Şavkılıoğlu, Çilsem Sevgen Demirbaş, Ali Yıldız, Erdem Karabulut   +6 more
doaj   +1 more source

Can indicators of myocardial damage predict carbon monoxide poisoning outcomes?

BMC Emergency Medicine, 2021
Background Carbon monoxide causes electrical, functional, and morphological changes in the heart. It is unclear, however, whether the indicators of myocardial damage can predict the patient’s prognosis after carbon monoxide poisoning.
Hitoshi Koga, Hideki Tashiro, Kouta Mukasa, Tomohiro Inoue, Aya Okamoto, Shougo Urabe, Shuuichirou Sagara, Kazumi Yano, Kouhei Onitsuka, Hisashi Yamashita   +9 more
doaj   +1 more source

Time-Varying Quantiles [PDF]

, 2006
A time-varying quantile can be fitted to a sequence of observations by formulating a time series model for the corresponding population quantile and iteratively applying a suitably modified state space signal extraction algorithm.
De Rossi, Giuliano, Harvey, Andrew C.
core   +2 more sources

Relationship between QT interval and ventricular electrical axis: A new suggestion for Lead selection in QT interval measurement [PDF]

Acta Medica Iranica, 2000
Exploration of the interlead QT variation (QT dispersion) introduced cardiologists to some new concepts including the deed to define a standard for lead selection in the measurement of QT interval and the reason or factors contributing to QT dispersion ...
"Moradman S, Hatamizadeh P "
doaj   +2 more sources

Correlation of corrected QT dispersion with the severity of coronary artery disease detected by SYNTAX score in non-diabetic patients with STEMI

The Egyptian Heart Journal, 2017
Introduction: Determination of the QT interval dispersion by means of a standard ECG at rest has been widely used for cardiovascular risk assessment during the last 15 years as one of the recent explanations for the development of life threatening ...
Hatem Helmy, Ahmed Abdel-Galeel, Yehia Taha Kishk, Khaled Mohammed Sleem   +3 more
doaj   +1 more source

The QT dispersion and QTc dispersion in patients presenting with acute neurological events and its impact on early prognosis

Journal of Neurosciences in Rural Practice, 2016
Aims: To find out and investigate whether the QT dispersion and QTc dispersion is related to type and prognosis of the acute stroke in patients presenting within 24 h of the onset of stroke.
Kailash Kumar Rahar, H. Pahadiya, K. Barupal, CP Mathur, M. Lakhotia   +4 more
semanticscholar   +1 more source

Effect of isolated coronary artery ectasia on dispersion of P-wave and QT interval

The Egyptian Heart Journal, 2012
Background: Coronary artery ectasia (CAE) is well-recognized, angiographic finding of abnormal coronary artery dilatation, and detected in 0.3–5.3% of angiographic studies.
Mahmoud K.
doaj   +1 more source

ARRITMIAS VENTRICULARES Y NUEVO SÍNDROME CORONARIO AGUDO EN PACIENTES CON INFARTO Y DISPERSIÓN DEL INTERVALO QT PROLONGADO / Ventricular arrhythmias and new acute coronary syndrome in patients with infarction and prolonged QT dispersion [PDF]

CorSalud, 2013
Resumen Introducción y objetivos: La isquemia miocárdica aumenta la dispersión del intervalo QT del electrocardiograma, ya que en estas circunstancias la duración del potencial de acción disminuye en la zona del insulto isquémico, al crear una dispersión
Luis M. Reyes Hernández, Wilfredo de J. Machín Cabrera, Elibet Chávez González, Fernando Rodríguez González, Vielka González Ferrer   +4 more
doaj  

Faraday rotation: effect of magnetic field reversals

, 2010
The standard formula for the rotation measure, RM, which determines the position angle, $\psi={\rm RM}\lambda^2$, due to Faraday rotation, includes contributions only from the portions of the ray path where the natural modes of the plasma are circularly ...
Benz, Broderick, Budden, D. B. Melrose, Melrose, Zheleznyakov, Zheleznyakov   +6 more
core   +1 more source