The Differences in Clinical Characteristic and Outcomes of New Onset Typical versus Atypical Right Branch Bundle Block in Acute Myocardial Infarction

Figure 1

Two representative cases of AMI combined with new-onset TRBBB and ATRBBB. (a) One inferior wall AMI case presented TRBBB in the ECG (red arrow pointed rsR′ graph in lead V₁). (b) Emergency CAG showed total occlusion in the proximal segment of RCA (red arrow marked occlusion site). ((c) and (d)) The RCA was opened after primary PCI (red arrow showed distal blood flow was restored). (e) One anterior and anterior septum wall AMI case presented ATRBBB in ECG (red arrow pointed qR′ graph in lead V₁). (f) Emergency CAG showed total occlusion in the proximal segment of LAD (occlusion site was marked by a red arrow). (g) The LAD was opened after primary PCI (red arrow showed distal blood flow was restored).

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