title: [Radiofrequency ablation in permanent ectopic left atrial tachycardia].
abstract: METHODS
  A 35-year-old symptom-free woman was known since childhood to have an increased resting heart rate (130-150/min). In the ECG there was a negative P in leads I and aVL, with a shortened P-Q interval of 90 ms. Previous treatment with beta-receptor blockers and calcium antagonists had failed. Clinical examination and echocardiography, as well as levels of thyroid hormone were unremarkable. During electrophysiological studies the earliest atrial activity was localised by endocardial leads in the region of the distal coronary sinus and the arrhythmia could not be terminated by atrial over-stimulation.
  
  
  METHODS
  After transseptal puncture the ablation catheter was introduced into the left atrium and, the exact site of the origin of the atrial tachycardia having been established, radiofrequency ablation of this point was successfully performed. Subsequently the patient was always found to be in stable sinus rhythm at around 80/min.
  
  
  CONCLUSIONS
  To prevent tachycardia-induced cardiomyopathy, radiofrequency ablation can be indicated even in symptom-free patients with atrial tachycardia.
authors.affiliation: 1. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München.
authors.forename: C
authors.initials: C
authors.lastname: Schmitt
authors.forename: M
authors.initials: M
authors.lastname: Karch
authors.forename: A
authors.initials: A
authors.lastname: Plewan
authors.forename: M
authors.initials: M
authors.lastname: Montero
authors.forename: A
authors.initials: A
authors.lastname: Schömig
mesh_terms: D000328:Adult; D001241:Aspirin / Q000008:administration & dosage; D017115:Catheter Ablation / Q000379:methods; D017024:Chemotherapy, Adjuvant; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D012008:Recurrence; D013612:Tachycardia, Ectopic Atrial / Q000175:diagnosis / Q000188:drug therapy / Q000601:surgery*
chemical_list: D001241:Aspirin
vernacular_title: Radiofrequenzablation bei permanenter ektoper linksatrialer Tachykardie.