Welcome to ep-easy.com – a project aimed at de-mystifying principles and concepts of cardiac electrophysiology. The main intended audience consists of cardiology & EP doctors in training and cardiac physiologists in training.

EP is a fascinating field – probably the most advanced of all specializations within cardiology – and most things that we do to treat rhythm disorders have fundamental technical principles which – at times can be daunting for the trainee – you bet it did for me.

There are numerous excellent textbooks that describe these in detail – but for the time -pressed trainee, reading all of them is not an option – and unfortunately most comprehensive books can be exhausting to understand – even for a simple principle.

Fortunately, majority of the common arrhythmia can be treated without a deep understanding these concepts – Unfortunately, the most hyped and fashionable disease – atrial fibrillation, does not require that much of “electrophysiolgy” – but being good in burning lines help. Given the burden of AF, basic electrophysiology is becoming a distant enigma for most trainees. The end result is the frustration in understanding and managing an arrhythmia which goes haywire from usual behavior.

My sincere goal is that readers of this project will understand and appreciate the wonderful mechanisms of cardiac arrhythmia and develop a scientific approach to managing them and become true electrophysiologists – not ablationists.

Please read this before you start  and – this is the topic index – The available topics are active – the list shows what I am planning on adding later. 

Recently updated topics

  • ECG Analysis of Pre-excitation (WPW) without algorithms
    Analysis of delta wave pattern on the ECG can give clues as to the location of a given accessory pathway. Such analysis can be done without algorithms if you read the ECG in a logical sequence. […]
  • Effect of Bundle Branch Block on AVRT
    Bundle branch block during orthodromic reciprocating AV reentry tachycardia (AVRT) helps to determine the side of the accessory pathway […]
  • Pre-excitation Index
    Pre-excitation index is a useful measurement to confirm the presence of an accessory pathway mediated tachycardia and identify the side of the accessory pathway […]
  • Entrainment – 4
    In this section we will look at some real life tachycardia circuits and see how the principles of entrainment and the criteria can be applied. […]
  • Entrainment – 3
    In this section we will look at concepts behind the so-called entrainment criteria […]
  • Entrainment – 2
    In this section we will see the importance of continuous pacing for entrainment […]

This is a work in progress – There will be errors, mistakes and whatnot –   feedback here please and very welcome. Learnt something ? please consider a charitable  donation (of course not to me!).

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