What is an ECG or an EKG? What does the QRS complex of an ECG represent? a. What does each wave of the ECG represent? b. Explain what is occurring in the heart at each wave. What does the T wave on an ECG correspond to? What does the P wave of an ECG represent? What is an...
A patient is admitted to the emergency room of a hospital complaining of chest pain and shortness of breath. Upon receiving the test results, it is determined that the individual is experiencing a When a patient suffers from bronchitis, physicians also check for pneumonia. Why is ...
Electrocardiogram (ECG or EKG) What is an electrocardiogram (ECG, EKG)? Read about the ECG procedure used to reflect underlying heart conditions such as angina, occurrence of a prior heart attack or of an evolving heart attack, and more. Read about the ECG test, interpretation, results, defin...
A resting standard supine 12-lead EKG was recorded. QTc interval was calculated using Bazett's formula (QTc = QT interval/square root R-R interval). Student t-test and Pearson's correlation coefficient were used for statistical analysis. Results: There was no significant difference between ...
A resting standard supine 12-lead EKG was recorded. QTc interval was calculated using Bazett's formula (QTc = QT interval/square root R-R interval). Student t-test and Pearson's correlation coefficient were used for statistical analysis. Results: There was no significant difference between ...
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RESULTS: Mean age was 17.7 weeks (range 4-72) and mean weight 6.3 kg (range 2.68-12.7). The QT-RR relationship during sleep is curvilinear and appears to be slightly shifted. With increasing heart rate and younger age the Bazett and Hodges formulae overcorrect the QTc whereas the ...
This methodology has in turn been employed to test for non-linearity and chaotic behavior in the dynamics of ECG-EKG, EEG and MEG =-=[23, 24]-=-. It has been recently demonstrated by de Silva et. al. [9], that combining timedelay embeddings with topological methods provides a ...
The log rank test p-values were 0.0221, 0.302, 0.537 and 0.144 respectively. LGE, late gadolinium enhancement; ECV, extracellular volume fraction. Table 3. Results of univariable and multivariable Cox regression analysis for the combined endpoint at two years of follow-up. Multivariable corrections...