| 摘要 |
A system and method for discriminating cardiac rhythms occurring in an antegrade direction from cardiac rhythms occuring in a retrograde direction. Atrial depolarizations and ventricular depolarizations are sensed. When a tachycardia episode having one-to-one association of atrial depolarizations to ventricular depolarizations is detected, first intervals between the ventricular depolarizations and first predetermined cardiac events and second intervals between the atrial depolarizations and second predetermined cardiac events are measured. Characteristics of the first and second intervals are then used to classify the tachycardia episode as either an antegrade rhythm or a retrograde rhythm. |
