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Summary ECG and conduction diseases
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  • Course
  • Learn EKG/leer ECG's lezen
  • Institution
  • Learn EKG/leer ECG's Lezen

Learn how to recognize conduction disorders on an EKG. Clear examples to help you learn recognizing the pathology on an EKG. Learn how to recognize conduction disorders on an EKG. Clear examples to help you learn to recognize the pathology on an ECG.

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Document information

  • June 25, 2023
  • 8
  • 2022/2023
  • Summary

Subjects

  • av block
  • av block 1st degree
  • av block 2nd degree
  • av block 3rd degree
  • wenkebach
  • mobitz i
  • mobitz ii
  • ecg and conduction disease

Written for

  • Learn EKG/leer ECG's lezen
All documents for this subject (5)

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CardiologieSamenvattingen

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Content preview

ECG Conduction diseases and brady-arrhythmia’s


Normal conduction: SA node à AV node à Bundle of His à Purkinje system
Disease at the AV node à AV block (heart block)
Disease in the bundle branches or fascicles
 Bundle branch blocks
 Fascicular blocks


Escape rhythm
 If no impulse arrives
 If the SA node does not fire another area may take over
 The more distal the origin of the escape rhythm the slower the rate
o SA node: 70-80 bpm
o AV node: 40-60 bpm
o Purkinje fibres/ventricles: 15-40 bpm




Beat Type Beat characteristics Example
Sinus  Normal P wave
 Normal (narrow) QRS

Atrial  Abnormal P wave
 Normal (narrow) QRS

Junctional (AV nodal)  P wave absent
(buried in QRS) or;
 Abnormal P wave just
before/after QRS
 Narrow QRS




Ventricular  Wide QRS
 Abnormal T wave
 No P wave

, First degree AV block
 Every P wave is followed by a QRS
 PR Interval >200ms (>1 big square)
 PR interval is constant


Example First degree AV block

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