title: Sino-atrial Wenckebach conduction in thyrotoxic periodic paralysis: a case report.
abstract: A 28-year-old male presented with thyrotoxic periodic paralysis. On admission to hospital the serum potassium level was 1.4 mmol/l. The ECG showed classical features of hypokalaemia. In addition, sino-atrial block with Wenckebach conduction was also present. With the normalization of the serum potassium, the ECG became completely normal and showed no evidence of any arrhythmia.
authors.affiliation: Department of Medicine, National University Hospital, National University of Singapore.
authors.forename: B L
authors.initials: BL
authors.lastname: Chia
authors.forename: K H
authors.initials: KH
authors.lastname: Lee
authors.forename: J S
authors.initials: JS
authors.lastname: Cheah
mesh_terms: D000328:Adult; D002231:Carbimazole / Q000008:administration & dosage / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D004562:Electrocardiography; D006801:Humans; D007008:Hypokalemia / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy; D007262:Infusions, Intravenous; D008297:Male; D010291:Paresis / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D011189:Potassium Chloride / Q000008:administration & dosage / Q000627:therapeutic use; D011433:Propranolol / Q000008:administration & dosage / Q000627:therapeutic use; D012849:Sinoatrial Node; D013616:Tachycardia, Sinus / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D013971:Thyrotoxicosis / Q000150:complications*
chemical_list: D011189:Potassium Chloride; D002231:Carbimazole; D011433:Propranolol