Difference between revisions of "ECG rhythms"

(IV. Conduction Disturbances)
(IV. Conduction Disturbances)
Line 24: Line 24:
 
*AV Block
 
*AV Block
 
**First Degree
 
**First Degree
 +
***Prolonged PR interval (>200msec) but constant and always conducts
 
**Second Degree
 
**Second Degree
 
***Type I
 
***Type I
 
***Mobitz I (Wenckeback)
 
***Mobitz I (Wenckeback)
****Progressive prolongation
+
****Progressive prolongation with intermittent dropped QRS complexes
 +
****Progressively shortening RR intervals
 
***Type II
 
***Type II
 
***Mobitz II  
 
***Mobitz II  
****Dropped beat(s)
+
****PR interval is constant with intermittent P waves not conducting QRS complexes
*Third Degree
+
****Surrounding RR intervals are constant
**Complete Heart Block
+
**Third Degree
**Dissociation between P waves and QRS complexes
+
***Complete Heart Block - no AV conduction
 +
***Dissociation between P waves and QRS complexes
  
 
== V. Preterminal ==
 
== V. Preterminal ==

Revision as of 23:52, 22 April 2015

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