ECG Interpretation

Posted by e-Medical PPT Wednesday, May 12, 2010
Electrocardiography (ECG or EKG) is a transthoracic interpretation of the electrical activity of the heart over time captured and externally recorded by skin electrodes. It is a noninvasive recording produced by an electrocardiographic device.
The ECG works by detecting and amplifying the tiny electrical changes on the skin that are caused when the heart muscle "depolarises" during each heart beat. During each heartbeat  heart will have an orderly progression of a wave of depolarisation that is triggered by the cells in the sinoatrial node, spreads out through the atrium, passes through "intrinsic conduction pathways" and then spreads all over the ventricles. This is detected as tiny rises and falls in the voltage between two electrodes placed either side of the heart which is displayed as a wavy line either on a screen or on paper.

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6 Responses to ECG Interpretation

  1. Anonymous Says:
  2. Good introduction for the beginners,but where are the rest of the slides?Pls,update it.Thank u.

  3. Anonymous Says:
  4. good!the rest of slides? please!!!

  5. Anonymous Says:
  6. Good and easy to understand. how can we access ecg for Acute MI and other arrythmias?

  7. kamal kumar Says:
  8. Good .First time i have visited this site. Useful information

  9. Anonymous Says:
  10. Excellent... So easy and interesting

  11. Anonymous Says:
  12. Good. Dr.Aslam.


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