Fig 64.a

Someone put a hot plate on this ECG, probably during a night shift, adding to the masquerade. This type of masquerading BBB is called standard and precordial since both sets of leads – standard and left precordial – resemble LBBB. Lead V1 and marked LAD tell the true story: RBBB + marked LAHB.

Someone put a hot plate on this ECG, probably during a night     shift, adding to the masquerade. This type of masquerading BBB is called     standard and precordial since both sets of leads – standard and     left precordial – resemble LBBB. Lead V1 and marked LAD tell     the true story: RBBB + marked LAHB.