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Types of bundle branch reentrant tachycardia
| Type A | Type B (Interfascicular tachycardia) | Type C | |
|---|---|---|---|
|
| |||
| ECG morphology | LBBB pattern | RBBB pattern | RBBB pattern |
| Anterograde limb | RBB | LAF or LPF | LBB |
| Retrograde limb | LBB | LPF or LAF | RBB |
LAF = left anterior fascicle; LBB = left bundle branch; LBBB = left bundle branch block; LPF = left posterior fascicle; RBB = right bundle branch; RBBB = right bundle branch block.
