title: Atrial fibrillation with hyperthyroidism in a 14-year-old male.
abstract: Atrial fibrillation is an uncommon feature of hyperthyroidism in childhood. We report a 14-year-old male who was referred to our hospital with hyperthyroidism and atrial fibrillation. He had a family history of atrial fibrillation. Spontaneous conversion of atrial fibrillation to sinus rhythm occurred 20 weeks after achieving euthyroid state by an antithyroid agent and a beta-blocker. Atrial fibrillation reoccurred after reduction of antithyroid medication and persisted for 19 weeks. Successful electrical cardioversion was performed resulting in conversion of heart rhythm to sinus. Usually, hyperthyroidism associated atrial fibrillation spontaneously reverts to sinus rhythm several weeks after achieving a euthyroid state. Control of thyroid function and heart rate is the goal of therapy for this type of atrial fibrillation.
authors.affiliation: Department of Pediatrics, Program of Baio-signaling and Infection Control, Kochi Medical School, Kochi University, Kohasu, Oko, Nankoku, Kochi, 783-8505, Japan. takasugi@med.kochi-u.ac.jp
authors.forename: Hisashi
authors.initials: H
authors.lastname: Takasugi
authors.forename: Kota
authors.initials: K
authors.lastname: Ao
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Sato
authors.forename: Akihiko
authors.initials: A
authors.lastname: Maeda
authors.forename: Taisuke
authors.initials: T
authors.lastname: Okada
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Wakiguchi
mesh_terms: D000293:Adolescent; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D013956:Antithyroid Agents / Q000627:therapeutic use; D001281:Atrial Fibrillation / Q000188:drug therapy / Q000209:etiology*; D004554:Electric Countershock; D004562:Electrocardiography; D006801:Humans; D006980:Hyperthyroidism / Q000150:complications* / Q000188:drug therapy; D008297:Male; D011433:Propranolol / Q000627:therapeutic use
chemical_list: D000889:Anti-Arrhythmia Agents; D013956:Antithyroid Agents; D011433:Propranolol