title: Supernormal phase of atrioventricular (A-V) conduction due to potassium. A-V alternans with first-degree A-V block.
mesh_terms: D054537:Atrioventricular Block; D005936:Glucans; D006321:Heart / Q000294:innervation*; D006327:Heart Block; D006801:Humans; D011188:Potassium / Q000494:pharmacology*
chemical_list: D005936:Glucans; C439358:alternan; D011188:Potassium
keywords: HEART BLOCK/experimental; HEART/innervation; POTASSIUM/pharmacology