Wednesday, November 30, 2011

What are two all your own EKG findings of a transmural myocardial infarction?

the two EKG characteristics of a transmural MI are ST elevation with low Q waves, followed by T tide inversion
Transmural infarct involves the entire thickness of ventricular wall. The loss of positivity contained by the infarcted area cause the development of Q breakers in the lead exploring the infarcted area.However, it is to be noted that even the usual ECG may show small Q waves contained by leads I, V5, and V6 that represent with the sole purpose normal septal depolarization. Q breakers, to be considered diagnostic of acute myocardial infarction, must (1) have a duration of at least possible 0.04 seconds or (2) enjoy a depth equal to 25% or more of the height of the R thrash.
Other than the Q waves , ST segment elevation (convex or straight upwards) suggests transmural infarct.

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