QTc - corrected QT interval .
Issues in QT interval measurement
... prolonged QT interval in patients with (IVCD). The QRS, QT, and JT intervals were measured in 72 subjects with various types of ...The QTc (QT interval corrected for heart ...
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The Relationship between Thyroid Hormone Levels and Corrected QT Interval and QT Dispersion in Non Diabetic Hemodialysis Patients
... Cardiovascular disease is the leading cause of death in patients with progressive renal disease and is responsible for up to 50% of deaths among patients underlying hemodialysis [9]. The cardiovascular risk of patients ...
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The relationship between insulin sensitivity and heart rate-corrected QT interval in patients with type 2 diabetes
... the QTc interval apart from non-modifiable risk factors including age and ...increased QTc interval were consistent with pre- vious ...the QTc in healthy ...the QTc ...
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The Effects of a Single Bolus of Remifentanil on Corrected QT Interval Change during Sevoflurane Induction
... any QT- prolonging drug for 14 days; 2) idiopathic or acquired pro- longed QT interval in preoperative ECG (QTc > 440 ms); 3) existence of arrhythmia, bundle branch block pattern or ...
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Drug-induced prolonged corrected QT interval in patients with methadone and opium overdose
... regarding QTc prolongation between two groups QTc prolongation is one of the adverse effects of methadone or opium overdose, and it may be more prevalent among pa- tients with a history of hypertension ...
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Prolonged QTc Interval Is an Electrophysiological Hallmark of Cirrhotic Cardiomyopathy
... prolonged corrected QT interval (QTc) in the case of cirrhotic cardiomyopathy ...[7]. QTc prolongation has been associated with an enhanced risk of a number of life-threatening cardiac ...
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Prolonged Rate-Corrected QT Interval and Other Electrocardiogram Abnormalities in Girls With Turner Syndrome
... PR interval was significantly shorter and the QTc was significantly longer in those with TS (Fig ...a QTc above the reference range ( ⬎ 440 millisec- onds; P ⫽ ...PR interval or QTc in ...
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Effects of Cisapride on Corrected QT Interval, Heart Rate, and Rhythm in Infants Undergoing Polysomnography
... In addition, there are a number of substances ca- pable of increasing cisapride plasma concentrations by inhibiting metabolism by cytochrome P-450 3A4. For this reason, all patients taking drugs metabolized by cytochrome ...
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Q-T interval prolongation in cirrhosis: Relationship and severity
... of QTc and cardiovascular mortality rate and sudden death in general population as a whole (4), but the relation between the prolonged QTc and cardiovascular events need to be further studied in cirrhotic ...
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The evaluation of QTc prolongation and QT dispersion in type 2 diabetes mellitus as an indicator of cardiac autonomic neuropathy
... The QT interval is corrected for what it would theoretically be at a rate of 60 ...The corrected QT interval is known as the QTc ...for QTc is 350-430 ms. The ...
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Evaluation of the QTc internal and QT dispersion in patients with newly detected clinical hypothyroidism
... the QT interval was measured to the nadir of the trough between the T and U ...formula, QT interval was corrected (QTc) for heart rate (Figure ...
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Heart repolarization changes after anthracycline therapy in the children with cancer
... The QT interval is a clinically important electrocardiographic ...the QT interval shows the time between depolarization and end of ...the QT interval in lead 2 or in the lead ...
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Effect of Dexmedetomidine on the Corrected QT and Tp e Intervals during Spinal Anesthesia
... the QTc interval between baseline and af- ter spinal block and a standard deviation of 23 ms with a paired ...the QTc, Tp-e, HR, and MAP between the two ...
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Non genetic risk factors of long QT syndrome
... with QT prolongation, a risk factor of arrhythmia and sudden cardiac ...on QT by in- creasing cardiac calcium ...with QT duration and that this effect would be stronger among persons not using ...
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Significance of prolonged QTc in acute exacerbations of COPD requiring hospitalization
... Automated QTc values were originally calculated according to Bazett’s formula (correcting the QT interval to a value predicted at a heart rate of 60 bpm, QTc = QT/ √ RR [RR ...
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The Effects of Cigarette Smoking on the Tp-e Interval, Tp-e/QT Ratio and Tp-e/QTc Ratio
... that QT pa- rameters were significantly lower in smokers but rate-corrected QT maximum and QT median dif- ferences were not significant ...R-R interval, QTc and QT ...
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A novel Bayesian approach to assessing the risk of QT prolongation
... as QT prolongation. The QT interval is a segment of the surface electrocardiogram (ECG) and represents the duration of ventricular depolariza- tion and subsequent repolarization, and is measured from ...
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EFFECT OF (RS)-ONDANSETRON AND ITS ENANTIOMERS ON QTC INTERVAL IN RATS
... in QT and RR interval and heart rate were calculated with the Biopac ...The QT interval corrected for heart rate (QTc) was calculated using the Bazett’s formula (10): QTc ...
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Rhythm and conduction abnormalities after surgical correction of Fallot’s Tetralogy
... and QTc interval (QT interval corrected with the cardiac frequency), given the fact that QRS duration is a risk factor for the development of rhythm ...the QTc we chose 440ms as ...
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A flexible class of models for data arising from a thorough QT/QTc study
... a QT study are naturally in time order, with multiple QTc measurements taken on each subject at a number of time-points, hence the comparison of drug with placebo involves assessing the time-matched ...
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