title: Effect of atenolol on QT interval and dispersion in patients with syndrome X.
abstract: Atenolol reduces QT dispersion and corrected QT interval in patients with syndrome X. This suggests that symptomatic improvement induced by atenolol in syndrome X patients may be partly related to reduction in abnormally augmented sympathetic tone.
authors.affiliation: Department of Cardiology, Istituto H San Raffaele, Milano-Roma, Roma, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Leonardo
authors.forename: G
authors.initials: G
authors.lastname: Fragasso
authors.forename: G M
authors.initials: GM
authors.lastname: Rosano
authors.forename: P
authors.initials: P
authors.lastname: Pagnotta
authors.forename: S L
authors.initials: SL
authors.lastname: Chierchia
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D001262:Atenolol / Q000627:therapeutic use*; D004562:Electrocardiography / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D017566:Microvascular Angina / Q000188:drug therapy*; D008875:Middle Aged
chemical_list: D000319:Adrenergic beta-Antagonists; D001262:Atenolol