Left atrioventricular valve replacement in a patient with hereditary haemorrhagic telangiectasia.

Hereditary haemorrhagic telangiectasia, or Osler-Rendu-Weber disease, is characterized by multiple arteriovenous malformations and telangiectasia which develop in the brain, lungs or liver. We report the case of a patient who had severe left atrioventricular valve regurgitation with atrial fibrillation after atrioventricular septal defect repair in her childhood and was diagnosed as having hereditary haemorrhagic telangiectasia by chance. The patient underwent successful left atrioventricular valve replacement and maze operation. The postoperative course was uneventful without nose bleeding worsening.