Transient TV1 > TV6 in LGL Conduction

Report:

Sinus rhythm 84/min

Minor non-specific ST/T changes

Early repolarisation, anterior leads

Lown-Ganong-Levine conduction

PR interval 0.12”

Comment:

The patient was admitted following several episodes of precordial discomfort and dyspnœa, but no palpitations were reported or arrhythmias documented. The ECG was consistent with ischæmia, with TV1 > TV6 and slight ST segment depression in lead aVF.

Those abnormalities resolved over 36 hours (Fig 21a) and a coronary angiogram was normal. He was sent home.

Most likely his ECG changes were left in the wake of a tachyarrhythmia (the post-tachycardia “syndrome”), but this remained uncertain. LGL conduction does not mean he had the syndrome.

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