202 Possible Causes for Long QT Syndrome in USA

  • Propionic Acidemia
    Long QT Syndrome

    Treatment of long QT syndrome was initiated with oral propanolol. … Schroeder,T.G. di Sessa Coincidence of long QT syndrome and propionic acidemia 2 E. … An Pediatr 2015;83:281-2 - Vol. 83 Num.4 DOI: 10.1016/j.anpede.2015.09.001 Scientific Letter Propionic acidemia and long QT syndrome: A potentially serious combination Acidemia[1]

  • Long QT Syndrome

    "Long QT syndrome". … Many people with long QT syndrome have no signs or symptoms. … Long QT syndrome at DMOZ Thomson, Clare; Wright, Paul (2014-10-15).[2]

  • Ventricular Arrhythmia

    If symptoms appear in childhood, genetic testing to confirm mutations characteristic for Brugada or long QT syndromes is necessary. … QT syndrome and Brugada syndrome, respectively. … Long QT and Brugada syndromes - Two ventricular arrhythmias induced by genetic events present usually in early life (mean onset of symptoms in long QT syndrome is 12 years[3]

  • Cinchonism

    A significant risk factor for this condition, however, is seen in patients with long QT syndrome, renal disease, myasthenia gravis, optic neuritis and G6PD, suggesting that … To reduce the risk of cinchonism, quinine should never be administered to patients suffering from renal disease, cardiac abnormalities such as long QT syndrome, myasthenia … To reduce the risk of cinchonism, quinine should be avoided in patients suffering from cardiac (most importantly long QT syndrome) or renal disease, myasthenia gravis, optic[4]

  • Paroxysmal Ventricular Tachycardia

    Genetic testing for Brugada and long QT syndromes and catecholaminergic polymorphic VT is also useful. … When VT occurs in a patient with long QT syndrome, this entity is called "torsade de pointes" and has a particular morphology.[5]

  • Ventricular Fibrillation

    Long QT syndrome can result in VF, particularly in patients with a family history of sudden cardiac death (SCD; risk is also increased in acquired long QT syndrome caused … PMID: 8339437 [33] Scoring: 1 point low probability of long QT syndrome 1 to 3 points intermediate probability of long QT syndrome 3.5 points high probability of long QT syndrome … Diagnostic criteria for the long QT syndrome.[6] [7]

  • Ventricular Tachycardia

    QT syndrome Congenital coronary artery abnormalities Inherited long QT syndrome Long QT syndrome is characterized by QT interval prolongation, T-wave abnormalities and polymorphic … Together, those 5 genes are responsible for virtually 100% of cases of inherited long QT syndrome. … In both acquired and congenital long QT syndromes , prolonged repolarization predisposes to torsades de pointes , a reentrant rhythm with a constantly varying circuit. [6][8]

  • Channelopathy

    The most common channelopathy in Ireland is Long QT syndrome (LQTS). … The term long QT syndrome describes a particular pattern of the electrical activation in the heart. … Catecholaminergic polymorphic ventricular tachycardia (CPVT) is similar in many ways to long QT syndrome.[9]

  • Sinus Bradycardia

    Fetal sinus bradycardia and the long QT syndrome. … Pathology Associations congenital long QT syndrome 1 maternal anti Ro antibodies 2-3 1. … Sinus tachycardia Long QT syndrome[10] [11]

  • Baller-Gerold Syndrome

    QT Syndrome Long QT Syndrome 1 Long QT Syndrome 10 Long QT Syndrome 11 Long QT Syndrome 12 Long QT Syndrome 13 Long QT Syndrome 14 Long QT Syndrome 15 Long QT Syndrome 2 … Long QT Syndrome 3 Long QT Syndrome 4 Long QT Syndrome 5 Long QT Syndrome 6 Low Gamma-GT Familial Intrahepatic Cholestasis Lowe Syndrome LRRK2-Related Parkinson Disease Lymphedema-Distichiasis … Brain Stem and Spinal Cord Involvement and Lactate Elevation Li-Fraumeni Syndrome Limb-Girdle Muscular Dystrophy LMNA-Related Dilated Cardiomyopathy Loeys-Dietz Syndrome Long[12]

Further symptoms

Similar symptoms


  1. Propionic acidemia and long QT syndrome: A potentially serious combination, http://www.analesdepediatria.org/en/propionic-a…
  2. Long QT syndrome, https://en.wikipedia.org/wiki/Long_QT_syndrome
  3. Ventricular Arrhythmia, https://www.symptoma.com/en/info/ventricular-ar…
  4. Cinchonism, https://www.symptoma.com/en/info/cinchonism
  5. Paroxysmal Ventricular Tachycardia, https://www.symptoma.com/en/info/paroxysmal-ven…
  6. Ventricular Fibrillation Clinical Presentation: History, Physical Examination, http://emedicine.medscape.com/article/158712-cl…
  7. Ventricular Fibrillation: Background, Pathophysiology, Etiology, http://emedicine.medscape.com/article/158712-overview
  8. Ventricular Tachycardia: Practice Essentials, Background, Pathophysiology, http://emedicine.medscape.com/article/159075-overview
  9. Channelopathies, http://www.cry.ie/index.php/need-help/informati…
  10. Sinus bradycardia, https://en.wikipedia.org/wiki/Sinus_bradycardia
  11. Fetal sinus bradycardia | Radiology Reference Article, http://radiopaedia.org/articles/fetal-sinus-bra…
  12. GeneTests - GeneReviews, https://www.genetests.org/resources/genereviews.php