Escape-echo bigeminy.
Escape-capture bigeminy is a well-known arrhythmia characterized by group beating of a junctional beat followed by a conducted sinus beat. We report a variant of this arrangement where a junctional beat gives rise to a retrograde P wave, which is then conducted back to the ventricles producing a hitherto undescribed combination (escape-echo bigeminy) resembling escape-capture bigeminy. The clinical significance of escape-echo bigeminy appears similar to that of classic escape-capture bigeminy.
Florida Heart Rhythm Institute, Tampa, FL, USA. ssbarold@aol.com
S Serge
SS
Barold
Roland
R
Stroobandt
Bengt
B
Herweg
D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006323:Heart Arrest / Q000175:diagnosis* / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D012804:Sick Sinus Syndrome / Q000175:diagnosis* / Q000503:physiopathology*