These findings were interpreted as evidence of acute posteroseptal myocardial infarction. Figure 1, Electrocardiogram, Showing Second-Degree Heart Block (Upper Strip) and Standard and Unipolar ...

Background Radiofrequency catheter ablation of concealed posteroseptal accessory pathways (APs) has been a relatively difficult task for electrophysiologists. Without a detailed mapping procedure, th ...

A 12-lead ECG showed intermittent loss of preexcitation with sinus beats and an accessory pathway that suggested a posteroseptal pathway. "Preexcited beats had a short PR interval (90 milliseconds ...

1) Left ventricle summit; 2) Aortomitral continuity; 3) Left coronary cups; 4) Right coronary cusp; 5) Left ventricle anterolateral wall; 6) Left ventricle posterolateral wall; 7) Right ventricle ...

The trace shows sinus rhythm with normal atrioventricular conduction and no preexcitation (normal HV interval, 46 ms) alternating with orthodromic echo beats from the concealed posteroseptal pathway ...

In patients with OAVRT, the accessory pathway is located predominantly in the posteroseptal region and conducts electrical impulses in a retrograde fashion. This is different from the classical ...

The ER doctor agrees with the paramedic’s diagnosis and treatment, performs a post-cardioversion 12-lead EKG, and notes subtle findings that indicate the presence of a posteroseptal AV tract.