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Myocardial Infaction and the Pathological Q-Wave


Posted by scanlonc

I know that for many patients with a myocardial infarction, a pathological q-wave is evident on the EKG of that patient, and in many of these patients the pathological q-wave remains in the EKG after the infarction has resolved itself.  I also know that the majority of the time in these patients the pathological q-wave is the type that is greater than 1/4 of the depth of the R-wave, and in former myocardial infarction patients, the q-wave can consistently be 1/3 the depth of the R-wave.  Does the pathological q-wave "deepen" further if the patient has a myocardial infarction a second time, or would there be any change in the Q-wave the second time a patient had an mi if a pathological Q-wave remained on the patient's EKG after the first myocardial infarction?
 
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