Active vs passive rhythms as an explanation of bigeminal rhythm with similar P waves.
We describe the criteria for differential diagnosis between 3:2 sinoatrial block from atrial bigeminy due to an ectopic focus in the sinus or parasinus zone. In the 3:2 sinoatrial block the RR interval of the basic rhythm is similar to the short R-R interval of the paired rhythm. In atrial bigeminy, the R-R interval of the basic rhythm is similar to the long R-R interval of the paired rhythm.
Bayés de Luna
A
A
Departamento de Medicina Interna, Universidad Autonoma de Barcelona, Hospital de Sant Pau, Barcelona, Spain.
Guindo
J
J
Homs
E
E
Madoery
C
C
Lamic
R
R
Iturralde
P
P
D001283:Atrioventricular Node; D005117:Cardiac Complexes, Premature / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D012848:Sinoatrial Block / Q000175:diagnosis*