Hereditary haemorrhagic telangiectasia: a cause of preventable morbidity and mortality.
AffiliationNational HHT Centre, Mercy University Hospital, Cork, Ireland. email@example.com
Intracranial Arteriovenous Malformations
Telangiectasia, Hereditary Hemorrhagic/*diagnosis/drug therapy/mortality/surgery
MetadataShow full item record
CitationIr J Med Sci. 2009 Jun;178(2):135-46. Epub 2008 Oct 16.
JournalIrish journal of medical science
AbstractHereditary haemorrhagic telangiectasia (HHT) is an autosomal dominant condition whose effects are mediated through deficient blood vessel formation and regeneration, with multisystem involvement. Patients are usually aware of resulting skin telangiectasia and epistaxis, but are also exposed to dangers posed by occult vascular malformations in other organs. About 15-35% of HHT patients have pulmonary AVMs (PAVMs), 10% have cerebral AVMs (CAVMs), 25-33% suffer significant GI blood loss from GI tract telangiectasia, and an unknown but high percentage have liver involvement. In total, 10% of affected individuals die prematurely or suffer major disability from HHT, largely because of bleeding from CAVMs and PAVMs, or paradoxical embolization through PAVMs. Screening for and early intervention to treat occult PAVMs and CAVMs can largely eliminate these risks, and should be undertaken in a specialist centre. The National HHT Center in The Mercy University Hospital in Cork is the referral centre for HHT screening in Ireland.
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