• Thumbnail for QT interval
    The QT interval is a measurement made on an electrocardiogram used to assess some of the electrical properties of the heart. It is calculated as the time...
    29 KB (3,277 words) - 03:00, 7 April 2024
  • Thumbnail for Long QT syndrome
    LQTS can be diagnosed using an electrocardiogram (EKG) if a corrected QT interval of greater than 450–500 milliseconds is found, but clinical findings...
    64 KB (6,615 words) - 00:18, 17 March 2024
  • the length of phase 3 myocardial repolarization, resulting in QT prolongation. A QT interval is a value that is measured on an electrocardiogram. Measurements...
    17 KB (2,159 words) - 15:00, 25 April 2024
  • Thumbnail for Short QT syndrome
    characteristic feature seen on an electrocardiogram (ECG) – a shortening of the QT interval. It is caused by mutations in genes encoding ion channels that shorten...
    24 KB (2,508 words) - 05:54, 25 December 2023
  • Thumbnail for Electrocardiography
    This analysis calculates features such as the PR interval, QT interval, corrected QT (QTc) interval, PR axis, QRS axis, rhythm and more. The results from...
    89 KB (9,808 words) - 16:45, 21 April 2024
  • Thumbnail for Torsades de pointes
    the QT interval can increase a person's risk of developing this abnormal heart rhythm, occurring in between 1% and 10% of patients who receive QT-prolonging...
    26 KB (2,983 words) - 10:57, 22 March 2024
  • Thumbnail for QT interval variability
    QT interval variability (QTV) refers to the physiological phenomenon of beat-to-beat fluctuations in QT interval of electrocardiograms. Increased QTV appears...
    5 KB (536 words) - 10:05, 4 January 2023
  • Look up QT, Qt, qt, or q.t. in Wiktionary, the free dictionary. QT or Qt may refer to: The Qt Company, a Finnish software developer QT Hotels & Resorts...
    2 KB (205 words) - 22:31, 13 August 2023
  • Thumbnail for Escitalopram
    dose-dependent QT interval prolongation and should not be used in those with congenital long QT syndrome or known pre-existing QT interval prolongation...
    50 KB (4,438 words) - 01:50, 31 March 2024
  • Thumbnail for Fluconazole
    QT interval prolongation, which may lead to serious cardiac arrhythmias. Thus, it is used with caution in patients with risk factors for prolonged QT...
    27 KB (2,258 words) - 04:50, 3 April 2024
  • Thumbnail for Hydroxychloroquine
    with short-term use of Hydroxychloroquine include low blood sugar and QT interval prolongation. Idiosyncratic hypersensitivity reactions have occurred...
    37 KB (4,806 words) - 04:10, 1 April 2024
  • Thumbnail for Fluoxetine
    taken alongside other drugs that prolong the QT interval, or by those with a susceptibility to long QT syndrome, there is a small risk of potentially...
    118 KB (11,667 words) - 22:20, 19 April 2024
  • Thumbnail for Ondansetron
    people taking other medicines that prolong the QT interval, as well as in people with congenital long QT syndrome, congestive heart failure, and/or bradyarrhythmias...
    29 KB (2,628 words) - 16:45, 15 April 2024
  • Thumbnail for Romano–Ward syndrome
    phase of the cardiac action potential, and therefore the length of the QT interval. The LQT3 subtype of Romano–Ward syndrome is caused by variants in the...
    27 KB (2,763 words) - 05:53, 8 November 2023
  • Thumbnail for Ventricular tachycardia
    ECG as a prolongation of the QT interval. QT prolongation may be congenital or acquired. Congenital problems include long QT syndrome and catecholaminergic...
    26 KB (2,940 words) - 05:06, 12 March 2024
  • Thumbnail for Andersen–Tawil syndrome
    characterised by an abnormality seen on an electrocardiogram (a long QT interval) and a tendency to abnormal heart rhythms, physical characteristics including...
    23 KB (2,389 words) - 19:29, 23 November 2023
  • Thumbnail for Moxifloxacin
    absorption of moxifloxacin. Drugs that prolong the QT interval (e.g., pimozide) may have an additive effect on QT prolongation and lead to increased risk of ventricular...
    35 KB (3,378 words) - 01:53, 21 April 2024
  • Thumbnail for Itopride
    affect QT interval and possibly predispose those using it to cardiac arrhythmias. However, itopride does not have any adverse effect on the QT interval. Later...
    17 KB (1,599 words) - 05:38, 13 April 2024
  • Thumbnail for T wave
    or vulnerable period. The T wave contains more information than the QT interval. The T wave can be described by its symmetry, skewness, slope of ascending...
    14 KB (1,763 words) - 13:05, 3 April 2024
  • Thumbnail for Solifenacin
    including people with a known history of QT prolongation and people taking medications known to prolong the QT interval. The most common side effects of solifenacin...
    16 KB (1,542 words) - 08:08, 3 March 2024
  • Thumbnail for Jervell and Lange-Nielsen syndrome
    loss from birth, affecting both ears. Those affected have a prolonged QT interval on an electrocardiogram and are at risk of abnormal heart rhythms (arrhythmias)...
    13 KB (1,370 words) - 14:23, 4 January 2024
  • Thumbnail for Antipsychotic
    prolonged QT interval in the heart, which can be dangerous for patients with heart disease or those taking other drugs that prolong the QT interval. Lurasidone...
    208 KB (18,263 words) - 04:12, 22 April 2024
  • Thumbnail for Sinus rhythm
    of 1:1. Normal P wave axis (0 to +75 degrees) Normal PR interval, QRS complex and QT interval. QRS complex positive in leads I, II, aVF and V3–V6, and...
    5 KB (650 words) - 01:55, 21 January 2024
  • Thumbnail for Vardenafil
    lengthening of the QT interval. Therefore, it should not be taken by people taking other medications that affect the QT interval (such as amiodarone)...
    10 KB (771 words) - 00:04, 4 March 2024
  • Thumbnail for Quinidine
    drug causes increased action potential duration, as well as a prolonged QT interval. As of 2019, its IV formulation is no longer being manufactured for use...
    19 KB (1,862 words) - 01:53, 8 April 2024
  • confirmed after a week. Specific changes, such as a shortened QT interval and prolonged PR interval, may be seen on an electrocardiogram (ECG). Treatment may...
    34 KB (3,298 words) - 03:10, 27 March 2024
  • Thumbnail for Chlorpromazine
    Hypoparathyroidism Prostatic hypertrophy Very rarely, elongation of the QT interval may occur, increasing the risk of potentially fatal arrhythmias. Consuming...
    61 KB (5,377 words) - 19:52, 17 March 2024
  • Thumbnail for Ranolazine
    QT interval in some patients and the FDA label contains a warning for doctors to beware of this effect in their patients. The drug's effect on the QT...
    17 KB (1,481 words) - 02:54, 31 March 2024
  • Thumbnail for Haloperidol
    dyskinesia which may be permanent. Neuroleptic malignant syndrome and QT interval prolongation may occur, the latter particularly with IV administration...
    56 KB (4,889 words) - 23:59, 2 April 2024
  • Thumbnail for HERG
    containing channels are blocked by amiodarone, and it does prolong the QT interval, but its multiple other antiarrhythmic effects prevent this from causing...
    19 KB (2,330 words) - 16:49, 25 March 2024