title: Lack of postextrasystolic potentiation in a normal heart.
abstract: Lack of postextrasystolic potentiation in a normal heart is described. The phenomenon might be attributed to calcium channel blocker treatment. We could not find a previous description of such a phenomenon in the English literature.
mesh_terms: D006328:Cardiac Catheterization; D005117:Cardiac Complexes, Premature / Q000503:physiopathology*; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged