Results 81 to 90 of about 11,585 (220)

Screening for QT Prolongation in the Emergency Department: Is There a Better “Rule of Thumb?” [PDF]

, 2020
Introduction: Identification of QT prolongation in the emergency department (ED) is critical for appropriate monitoring, disposition, and treatment of patients at risk for torsades de pointes (TdP).
Friedman, Ari B., Rischall, Megan L., Smith, Stephen W.   +2 more
core  

Restricting excessive cardiac action potential and QT prolongation: a vital role for IKs in human ventricular muscle [PDF]

, 2005
Background - Although pharmacological block of the slow, delayed rectifier potassium current (I-Ks) by chromanol 293B, L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the ...
Biliczki, Péter, Bitay, Miklós, Bogáts, Gábor, Jost, Norbert, Lathrop, David A., Lengyel, Csaba Attila, Nagy, Zsolt, Papp, Gyula, Takács, János, Varró, András, Virág, László   +10 more
core   +1 more source

QTc Interval Prolongation and Associated Drug Therapy in Hospitalized Older Adults

Journal of the American Geriatrics Society, EarlyView.
Francesco Fantin, Sara Fiorini, Anna Giani, Luana Giacobbe, Elena Zoico, Gianluca Trifirò, Rocco Micciolo, Mauro Zamboni   +7 more
wiley   +1 more source

Prolactin Inhibition to Treat Postpartum Arrhythmic Storm

JACC: Case Reports
Postpartum electrical storm due to torsade de pointes is a rare but life-threatening condition. The uniqueness of this case lies in the use of cabergoline to suppress postpartum ventricular arrhythmias in absence of heart disease.
Miriam Compagnone, MD, Alessandro Marinelli, MD, Gianni Dall'Ara, MD, PhD, Matteo Ziacchi, MD, PhD, Simone Grotti, MD, Leonardo Ciurlanti, MD, Fabio Felice Tarantino, MD, Luciano Potena, MD, Mauro Biffi, MD, Marcello Galvani, MD   +9 more
doaj   +1 more source

On-chip constructive cell-network study (II): on-chip quasi-in vivo cardiac toxicity assay for ventricular tachycardia/fibrillation measurement using ring-shaped closed circuit microelectrode with lined-up cardiomyocyte cell network [PDF]

, 2011
Backgrounds Conventional in vitro approach using human ether-a-go-go related gene (hERG) assay has been considered worldwide as the first screening assay for cardiac repolarization safety.
Fumimasa Nomura, Tomoyuki Kaneko, Akihiro Hattori, Kenji Yasuda   +3 more
core   +2 more sources

A repolarizációs rezerv csökkenésére és a kamrai repolarizáció adaptációs zavaraira visszavezethető proarrhytmiás mechanizmusok elemzése klinikai körülmények között és emlős szívizomban = Analysis of proarrhythmic mechanisms based on decreased repolarization reserve and disturbed adaptation of cardiac ventricular repolarization under clinical circumstances and in mammalian hearts [PDF]

, 2009
Munkánk célja a kamrai repolarizáció - csökkent repolarizációs rezerv okozta - adaptációs zavarainak vizsgálata volt kísérletes és klinikai körülmények között.
Lengyel, Csaba Attila
core  

Mapping and Ablating Ventricular Premature Contractions That Trigger Ventricular Fibrillation: Trigger Elimination and Substrate Modification [PDF]

, 2014
Ventricular fibrillation (VF) is a malignant arrhythmia, usually initiated by a ventricular premature contraction (VPC) during the vulnerable period of cardiac repolarization. Ablation therapy for VF has been described and increasingly reported.
NOGAMI AKIHIKO, 野上 昭彦
core   +1 more source

Idiopathic Intractable Diarrhoea Leading to Torsade de Pointes

Case Reports in Cardiology, 2016
An 81-year-old lady was admitted to our hospital with a 3-year history of noninfective diarrhoea and recurrent syncopal events over the last 3 months. Her initial electrocardiogram (ECG) revealed trigeminy and prolonged QTc interval.
Kyriacos Mouyis, Darlington Okonko, Constantinos G. Missouris   +2 more
doaj   +1 more source

Predictive Analytics for Identification of Patients at Risk for QT Interval Prolongation – A Systematic Review [PDF]

, 2018
Prolongation of the heart rate‐corrected QT (QTc) interval increases the risk for torsades de pointes (TdP), a potentially fatal arrhythmia. The likelihood of TdP is higher in patients with risk factors, which include female sex, older age, heart failure
Muensterman, Elena Tomaselli, Tisdale, James E.   +1 more
core   +1 more source

A Case of QT Prolongation Associated with Panhypopituitarism

Case Reports in Endocrinology, 2013
We describe a 37-year-old patient with panhypopituitarism who experienced symptoms and signs of hormonal insufficiency and QT prolongation on electrocardiogram without electrolyte disturbances.
Dilek Arpaci, Mustafa Volkan Demir, Tayfun Garip, Ali Tamer   +3 more
doaj   +1 more source