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I. Supraventricular
II. Junctional
III. Ventricular
IV. Conduction Disturbances
- AV Block
- First Degree
- Prolonged PR interval (>200msec) but constant and always conducts
- Second Degree
- Type I
- Mobitz I (Wenckeback)
- Progressive prolongation with intermittent dropped QRS complexes
- Progressively shortening RR intervals
- Type II
- Mobitz II
- PR interval is constant with intermittent P waves not conducting QRS complexes
- Surrounding RR intervals are constant
- Third Degree
- Complete Heart Block - no AV conduction
- Dissociation between P waves and QRS complexes
V. Preterminal
VI. Preexcitation Syndromes
See Also
References