Results 31 to 40 of about 133,758 (181)

QT peak prolongation predicts cardiac death following stroke [PDF]

open access: yes, 2015
Cardiac death has been linked in many populations to prolongation of the QT interval (QTe). However, basic science research suggested that the best estimate of the time point when repolarisation begins is near the T-wave peak.
Douglas, Denise   +7 more
core   +1 more source

The importance of the epinephrine provocation test for the hidden type-1 congenital long QT syndrome

open access: yesTürk Kardiyoloji Derneği Arşivi, 2020
Congenital long QT syndrome (LQTS) is a genetic channelopathy associated with a high incidence of sudden cardiac death in children and young adults. QT interval prolongation is typically the primary finding on the electrocardiography (ECG) recordings ...
Adem Atici   +3 more
doaj   +1 more source

Beyond a prolonged QT interval [PDF]

open access: yesJRSM Short Reports, 2013
A hypocalcaemia case is presented with convulsions, electrocardiogram (ECG) changes and laboratory findings suggestive of osteomalacia. This case constitutes a rare presentation of osteomalacia-induced hypocalcaemia.
Hani Alfayed   +3 more
openaire   +2 more sources

The QT Intervals in Infancy and Time for Infantile ECG Screening for Long QT Syndrome [PDF]

open access: yes, 2011
Background: Electrocardiographic and molecular studies have clarified an association between sudden infant death syndrome (SIDS) and long QT syndrome (LQTS), and few data are available for the QT interval in infancy from birth to 1 year of age ...
Yoshinaga, Masao   +13 more
core   +2 more sources

Parameters of ventricular repolarization in patients with autoimmune hepatitis

open access: yesTürk Kardiyoloji Derneği Arşivi, 2017
Objective: Autoimmune hepatitis (AIH) is a liver disorder that affects both children and adults. It is characterized by inflammatory liver histology, elevated transaminase level, circulating nonorgan-specific autoantibodies, and increased level of ...
Burak Açar   +11 more
doaj   +1 more source

Pharmacogenetics of Drug-Induced QT Interval Prolongation: An Update [PDF]

open access: yes, 2015
A prolonged QT interval is an important risk factor for ventricular arrhythmias and sudden cardiac death. QT prolongation can be caused by drugs. There are multiple risk factors for drug-induced QT prolongation, including genetic variation.
Berg, M.E. (Marten) van den   +4 more
core   +1 more source

Dynamics of QT Interval in a Patient With Long QT Syndrome and a Normal QT Interval

open access: yesJapanese Circulation Journal, 1998
A case report of a 15-year-old girl who experienced syncope and torsades de pointes is presented. The girl had a normal QT interval (QTc=0.37 sec) on the resting electrocardiogram (ECG). Infusion of isoproterenol induced QT prolongation (QTc=0.62 sec) and frequent occurrence of multiform ventricular premature beats. Her Holter ECG showed a prolongation
Morio Ito   +8 more
openaire   +4 more sources

Automated versus Manual Measurement of the QT Interval and Corrected QT Interval [PDF]

open access: yesAnnals of Noninvasive Electrocardiology, 2011
Background: The International Conference on Harmonization E14 Guideline specifies detailed assessment of QT interval or corrected QT interval prolongation when developing new drugs. We recently devised new software to precisely measure the QT interval.
Masakatsu Ohta   +8 more
openaire   +3 more sources

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

open access: yes, 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.   +2 more
core  

New electrocardiographic criteria to differentiate acute pericarditis and myocardial infarction [PDF]

open access: yes, 2014
Objective Transmural myocardial ischemia induces changes in QRS complex and QT interval duration but, theoretically, these changes might not occur in acute pericarditis provided that the injury is not transmural.
Alguersuari, Joan   +7 more
core   +2 more sources

Home - About - Disclaimer - Privacy