Sinoatrial exit block occurs when the action potential initiated by the sinoatrial node is inhibited or completely blocked before it is able to leave the SA node and reach the atrium, and thus no ...
Normal sinus rhythm Second degree type I sinoatrial nodal exit block (SA nodal Wenckebach) This ECG strip shows second degree type I sinoatrial nodal exit block, not to be confused with AV nodal ...