Concealed conduction of P waves may temporarily restore 1:1 AV conduction in patients with Phase 4 paroxysmal atrioventricular block.
May explain transient conduction recovery in phase 4 AV block; hypothesis-generating case report that leaves open any management implications.
Four cases of PAVB were reported, 3 of which manifested third-degree AV block, while one exhibited first-degree AV block, while one exhibited first-degree AV block. The location and mechanism of establishment and disappearance of PAVB was discussed. It was speculated that, in some cases, concealed conduction of P waves could promote depolarization of the injured area which displayed Phase 4 block and thus temporarily restore 1.1 AV conduction.
No takes yet. Share an insight, caveat, or question.
Yan et al. (1981) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: