Anterior wall myocardial infarction and 50 Hz interference

AWMI and 50 Hz interference small
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Anterior wall myocardial infarction with QS complexes and ST segment elevation in V1 to V6. T wave inversions are seen in inferior leads. 50 Hz line interference is seen in standard leads, maximum in lead II.

50 cycle interferencel

50 cycle interference

ECG

2 responses to Anterior wall myocardial infarction and 50 Hz interference


  1. Firoz

    What causes 50 cycle interference (and how can we avoid it) ?

  2. Johnson Francis

    50 cycle interference is from the AC line. Good earthing could do away with it. Easier way would be to run the ECG machine on battery pack.