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Familial idiopathic dilatation of the right atrium

Disease definition

A rare congenital heart malformation of unknown etiology that is characterized by an extremely dilated right atrium, and that is usually asymptomatic and fortuitously discovered by echocardiography or chest radiography, and can be sometimes associated with other anomalies such as atrial arrhythmias (e.g. atrial flutter, atrial fibrillation, supraventricular tachycardia), severe tricuspid regurgitation, or atrial thrombus that could lead to potentially life-threatening thromboembolic complications.

ORPHA:1677

Classification level: Disorder
  • Synonym(s): -
  • Prevalence: Unknown
  • Inheritance: Unknown 
  • Age of onset: All ages
  • ICD-10: Q20.8
  • ICD-11: LA8F
  • OMIM: -
  • UMLS: C4274283
  • MeSH: -
  • GARD: -
  • MedDRA: -

  A summary on this disease is available in Español (2014) Français (2014) Nederlands (2014)

Additional information

Further information on this disease

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Research activities on this disease

Specialised Social Services

The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.