The QT Interval

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منابع مشابه

Measurement of the QT interval.

Ventricular repolarization is reflected by the T-wave of the surface electrocardiogram, the QT interval being the time taken for ventricular recovery. QT measurement has assumed clinical importance as prolongation is associated with a variety of conditions includingthe Romano-Ward' and JervellLange-Neilson syndromes, drug toxirity' and an adverse prognosis following acute myocardial infarction....

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Prolonged QT interval in the infants of diabetic mothers

Background: The prevalence of gestational diabetes mellitus is rising. Myocardial hypertrophy is the most common cardiac disorder in the infants of diabetic mothers, which hypothetically can cause fatal arrhythmias. This study investigated prolonged QT in the newborns of diabetic mothers in Afzalipour Hospital in Kerman City, in 2015. Methods: This case-contro...

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[The long QT interval syndrome].

The syndrome of long QT interval frequently follows to syncope or a sudden cardiac death on the basis of originated polymorphic ventricular tachycardia of the "torsade de pointes" type. The prolongation of the QT interval in the hereditary form is based on mutation of the genes responsible for the formation of sodium and potassium channels. The authors analyze the occurrence, clinical findings,...

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The Measurement of the QT Interval

The evaluation of every electrocardiogram should also include an effort to interpret the QT interval to assess the risk of malignant arrhythmias and sudden death associated with an aberrant QT interval. The QT interval is measured from the beginning of the QRS complex to the end of the T-wave, and should be corrected for heart rate to enable comparison with reference values. However, the correc...

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ژورنال

عنوان ژورنال: Circulation

سال: 2019

ISSN: 0009-7322,1524-4539

DOI: 10.1161/circulationaha.119.039598