title: [A heart without overspeed trip unit].
abstract: We report the case of a 38-year patient who presented in our outpatient clinic for cardiac evaluation and assessment as volunteer firefighter. The patient had an asymptomatic sinustachycardia, which was diagnosed at the age of 15. After we excluded secondary etiologies, as well as a postural orthostatic tachycardia syndrome (POTS) diagnosis of inappropriate sinus tachycardia (IST) was confirmed. A metoprolol therapy was established, however to resistant tachycardia, we suggested a combined therapy of Bisoprolol and Ivabradin, which resulted successfully in normocard sinus rhythm.
authors.affiliation: Universitäres Herzzentrum Zürich, Universitätsspital Zürich.
authors.forename: Roman
authors.initials: R
authors.lastname: Gähwiler
authors.affiliation: Universitäres Herzzentrum Zürich, Universitätsspital Zürich.
authors.forename: Christian
authors.initials: C
authors.lastname: Templin
authors.affiliation: Universitäres Herzzentrum Zürich, Universitätsspital Zürich.
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Lüscher
authors.affiliation: Universitäres Herzzentrum Zürich, Universitätsspital Zürich.
authors.forename: Jelena-Rima
authors.initials: JR
authors.lastname: Ghadri
mesh_terms: D000328:Adult; D000465:Algorithms; D001552:Benzazepines / Q000627:therapeutic use; D017298:Bisoprolol / Q000627:therapeutic use; D003937:Diagnosis, Differential; D004359:Drug Therapy, Combination; D004452:Echocardiography; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D005080:Exercise Test; D061388:Firefighters; D006801:Humans; D000077550:Ivabradine; D008297:Male; D008790:Metoprolol / Q000627:therapeutic use; D010100:Oxygen / Q000097:blood; D010808:Physical Examination; D010809:Physical Fitness; D012815:Signal Processing, Computer-Assisted; D013616:Tachycardia, Sinus / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology*; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis
chemical_list: D001552:Benzazepines; D000077550:Ivabradine; D008790:Metoprolol; D010100:Oxygen; D017298:Bisoprolol
keywords: ECG; EKG; Herzrhythmusstörung; Inadäquate Sinustachykardie; Inappropriate Sinus Tachycardia; Ivabradin; Ivabradine; heart rythm disorder