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electrocardiogram
(redirected from isoelectric line)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
electrocardiogram [i‚lek·trō′kärd·ē·ə‚gram]
(medicine)
A graphic recording of the electrical manifestations of the heart action as obtained from the body surfaces. Abbreviated ECG; EKG.


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Electrocardiographic hallmarks of TdP include QTc interval prolongation to greater than 500 ms in the context of a polymorphic tachycardia with a twisting of the QRS axis about the isoelectric line (9).
The term "[DELTA]ST elevation" was used to describe a change in the ST-segment level in the positive direction from the baseline, whether or not actual ST-segment elevation from the isoelectric line was present.
The onset and offset of T wave were defined as the intersections of the isoelectric line and the tangent of the maximal slope on the up and down limbs of T wave, respectively.
 
 
 
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