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Apart from the standard 12 leads, additional leads are sometimes useful in the diagnosis of various conditions. These include right sided chest leads, posterior leads and elevated leads. Although ideally these should be recorded by placing electrodes in these locations, they can be derived from the standard leads. Here, right sided (V3R, V4R, V5R and V6R), posterior (V7, V8 and V9) and elevated leads (V1+1, V2+1, V1+2, V2+2) are derived and displayed. See here for more details.

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Low atrial rhythm with interatrial conduction delay

60 year old male with constrictive pericarditis and atrial flutter s/p DC cardioversion. This is post cardioversion ECG showing inverted P waves in II, III, aVF and broad notched P waves (P wave duration-140ms)

Name: Anon
Sex: UN
Date: 31-12-2021 18:10
Recorded on: Biocare ECGS12A
Filters:

  • Low pass filter - 100 Hz
  • High pass filter - 0.5 Hz