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358 Possible Causes for Repolarization Abnormalities

  • Familial Hypertrophic Cardiomyopathy Type 16

    Echocardiography typically reveals global or segmental wall abnormalities with or without wall motion abnormalities. 1 The ECG shows abnormal repolarization and small-amplitude[] repolarization, small-amplitude potentials at end of QRS complex (epsilon wave) Echocardiography shows segmental wall abnormalities, with or without wall motion abnormalities[] The diagnosis is typically made by evaluating for electrical, functional, and anatomic abnormalities that may have been evaluated for previously because of a sudden arrhythmia[]

  • Hypertensive Retinopathy

    Renal dysfunction, ECG abnormalities (ventricular hypertrophy, pathological Q wave, repolarization abnormalities), and history of stroke were observed in 70.0%, 27.0% and[]

  • Propofol

    abnormalities in the right precordial leads V1-V3.[] The repolarization changes did not disappear until the patient's clinical course improved.[] A patient with complicated malaria in whom Brugada-ECG abnormalities appeared in concomitance with fever and propofol administration is presented.[]

  • Diphenhydramine

    These repolarization abnormalities neither normalize with the correction of the hyperkalemia nor with an intravenous infusion of isoproterenol.[] The markedly abnormal ventricular repolarization is rare with diphenhydramine overdose.[] We report a case where a young woman who took moderate overdose of diphenhydramine (625 mg) along with acetaminophen developed prolonged QT interval with strikingly abnormal[]

  • Left Bundle Branch Block

    This case provides additional evidence that LVNC may be complicated by 2:1 (or complete) AVB, intraventricular conduction disturbances (LBBB) and repolarization abnormalities[] From these vectorcardiograms, QRS and T-wave area were calculated as comprehensive indices of depolarization and repolarization abnormalities, respectively.[] Because activation (depolarization) of the left ventricle is abnormal in the presence of LBBB, the recovery (repolarization) will also be abnormal.[]

  • Acute Arsenic Poisoning

    Arsenic-induced carotid atherosclerosis, ventricular repolarization abnormalities, and ischemic heart disease / Chih-Hao Wang -- ch. 8.[] Blackfoot disease and microcirculation abnormality / Chin-Hsiao Tseng [und weitere] -- ch. 7.[]

  • Arrhythmogenic Right Ventricular Dysplasia

    We hypothesized that ventricular depolarization and repolarization abnormalities on the 12-lead surface electrocardiogram (ECG) predict adverse outcome in patients with ARVD[] abnormalities: inverted T waves in right precordial leads [V1, V2, and V3]); and one minor criterion ( 500 ventricular extrasystoles per 24 hours by Holter), and so a diagnosis[] A 56-year-old male with repolarization abnormalities on electrocardiogram (ECG), ventricular arrhythmias, and family history of sudden cardiac death presents with worsening[]

  • Friedreich Ataxia

    abnormalities.[] […] in ECG (ventricular repolarization) (p 0.0196*); less frequently found were muscle trophism (p 0.0593*) and CT image abnormalities (p 0.0350*).[] The therapy resulted in a reduction in the thickness of the septal and posterior left ventricular walls and complete normalization of diffuse electrocardiographic repolarization[]

  • Propionic Acidemia

    The ECG revealed a sinus rhythm with normal voltages, but with a QTc interval of 500 ms (calculated by Bazett's formula) and repolarization abnormalities with negative T waves[] The same study reported that the most frequent ECG changes besides QT prolongation were repolarization abnormalities with T-wave inversion in leads V4–V6, abnormalities that[]

  • Procainamide

    […] and conduction velocity Direct membrane depressant that decreases conduction velocity, prolongs refractoriness, decreases automaticity and reduces repolarization abnormalities[] Pharmacology Mechanism of Action Class IA (membrane stabilizing) antiarrhythmic agent; inhibits recovery after repolarization resulting in decreasing myocardial excitability[]

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