Left Septal Fascicular Block by Andrés R. Pérez-Riera Raimundo Barbosa-Barros & Adrian Baranchuk

Author:Andrés R. Pérez-Riera, Raimundo Barbosa-Barros & Adrian Baranchuk
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Type A WPW

Type B WPW

Type C WPW

Location of the anomalous pathway

Between the left atrium (Gallagher point 9 or left anterior) and the LV (Gallagher points 4, 5, 6 and 7)a

Between the right atrium (RA) and right ventricle (RV) (points 1, 2 and 10)

Left lateral in Gallagher point 8

Morphology of QRS complex

PAF similar to RBBB, LSFB, Lateral Myocardial Infarction

Similar to LBBB, Anterior MI

Negative δ in aVL and frequently in I, V5 and V6

Morphology in precordial leads

Prominent anterior forces by postero-anterior activation

Generally, negative predominance in right precordial leads

Negative or isodiphasic in V5 and V6 and positive from V1 to V4

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