[Disorders of intra-cardiac conduction and hypothyroidism in adults. A systematic study of 42 cases].
The rate of occurrence of disturbances of intracardiac conduction in association with adult hypothyroidism is not well known. On the basis of routine study of the electrocardiograms of 42 non-treated patients, disturbances of conduction were found in almost one third. Left anterior hemiblock (6/42) and first degree atrioventricular block (5/42) are the commonest. Bifascicular involvement is rare. Neither a trifascicular lesion nor complete AV dissociation were seen. There was no evident effect of hormone therapy on conduction disturbances. Their prognosis is good but they should perhaps be taken into consideration when the indications for beta-blockers are weighed.
D000293:Adolescent; D000328:Adult; D000368:Aged; D064987:Cell- and Tissue-Based Therapy; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000209:etiology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D007037:Hypothyroidism / Q000150:complications* / Q000503:physiopathology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011433:Propranolol / Q000627:therapeutic use
D011433:Propranolol
Troubles de conduction intra-cardique et hypothroïdie de l'adulte. Etude systématique de 42 cas