title: Catheter-induced 3:1 second degree atrioventricular nodal block during atrioventricular nodal reentrant tachycardia.
authors.affiliation: Division of Cardiology, Hospital de Clínicas de Porto Alegre, RS, Brazil.
authors.forename: L
authors.initials: L
authors.lastname: Zimerman
authors.forename: C
authors.initials: C
authors.lastname: Medeiros
authors.forename: G
authors.initials: G
authors.lastname: Lima
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017115:Catheter Ablation / Q000009:adverse effects*; D006327:Heart Block / Q000209:etiology*; D006801:Humans; D008297:Male; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000601:surgery*