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220 Possible Causes for Short QT Interval

  • Hypercalcemia

    QTc interval (also caused by congenital short QT syndrome and digoxin) Prolonged PR Widened QRS complex AV block Hypercalcemia EKGs Short QT Interval - LITFL Short QT Interval[] QT interval [16] suggest hypercalcaemia.[] […] confusion, hallucinations Hyporeflexia Diagnosis Serum calcium 10.5 mg/dL 5 – 12.0 mg/dL considered moderate 14 mg/dL considered severe potentially life-threatening EKG Short[]

  • Digoxin

    The short QT interval, the “sagging” appearance in the inferior leads and the lack of voltage criteria for LVH indicates that this is digoxin effect rather than LVH.[] QT interval with secondary repolarisation abnormalities affecting the ST segments, T waves and U waves.[] Mechanism The ECG features of digoxin effect are seen with therapeutic doses of digoxin and are due to: Shortening of the atrial and ventricular refractory periods — producing a short[]

  • Primary Hyperparathyroidism

    QT interval on the electrocardiogram 20 .[] Also, manifestations related to symptomatic hypercalcemia can be present; these include nausea, vomiting, constipation, polyuria, polydipsia, mental confusion, coma, and a short[]

  • Familial Atrial Fibrillation

    Short QT syndrome. Cardiovasc Res. 2005 Aug 15;67(3):357-66. [ PMID: 15890322 ] [ Full text ] Viskin S. The QT interval: too long, too short or just right.[] QT syndrome and atrial fibrillation caused by mutation in KCNH2 , J Cardiovasc Electrophysiol , 2005 , vol. 16 (pg. 394 - 6 ) 33 Idiopathic short QT interval: a new clinical[] QT interval and peaked T waves …suggestive of congenital short QT syndrome (SQTS) What other conditions may cause a similar ECG appearance?[]

  • Conduction Disorder of the Heart

    Congenital short QT syndrome is a new familial primary electrical disease of the heart, which is characterized by abnormally short QT interval and paroxysmal atrial and ventricular[] Histiocytoid cardiomyopathy, Arrhythmogenic right ventricular dysplasia, Isolated noncompaction of the left ventricle, Long QT syndrome (LQTS) and Brugada syndrome, are all[]

  • Klinefelter Syndrome

    No mutations in genes related to short QT syndrome were found. We found short QTc interval in males with KS, with further shortening of the QTc interval by T.[] The prevalence of mutations in genes related to short QT syndrome was determined in participants with a QTc 330 ms.[] Compared to controls, the QTc-interval was shorter (P 0.02-0.06) in males with KS depending on the applied correction method.[]

  • Digitalis

    We studied the effect of digitalis on nerve conduction dysfunction in Pelizaeus-Merzbacher disease (PMD). The patients were three Japanese boys with PMD, aged 7-10 years. Digitalis was administered orally in a daily dose of 0.06 mg/kg for 2 consecutive months, and the obtained serum concentrations ranged from 0.33[…][]

  • SHORT Syndrome

    Therefore, in order to get a reliable assessment of the QT interval in a patient suspected of having a short QT interval and possibly Short QT Syndrome every effort should[] Atrial fibrillation in the setting of familial short QT interval. Heart Rhythm 2004; 1: S165 (abstract).[] […] asymptomatic individuals with short QT intervals.[]

  • Vitamin D Toxicity

    Nowadays vitamin D (25-OHD) deficiency is supposed to be a global epidemic condition. Expectedly, vitamin D measurement and intake exponentially increased in Brazil in this decade. Although the benefit of vitamin D to general health is still in debate, its indiscriminate use potentially may lead to enhance the incidence[…][]

  • Sinus Bradycardia

    We describe the case of an asymptomatic girl with sinus bradycardia and short QT interval at birth, junctional bradycardia in infancy requiring single-chamber pacemaker, atrial[]

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