Pulmonary arteriovenous malformations in Rendu-Osler-Weber syndrome
- PMID: 38659617
- PMCID: PMC11042540
- DOI: 10.1590/1677-5449.202301332
Pulmonary arteriovenous malformations in Rendu-Osler-Weber syndrome
Abstract
Rendu-Osler-Weber syndrome, also known as hereditary hemorrhagic telangiectasia, is an autosomal dominant hereditary disorder. It is characterized by presence of multiple arteriovenous malformations (AVMs) and telangiectasias. This article reports two cases of patients with Rendu-Osler-Weber syndrome who had pulmonary AVMs and underwent successful endovascular treatment. A brief review of the literature shows that up to 50% of patients with the syndrome have pulmonary AVMs and there is usually a positive family history in these patients. These pulmonary AVMs are multiple in 30% of cases and are associated with the most severe disease complications. Most patients are asymptomatic, even in the presence of AVMs with right-left shunts. When these shunts exceed 25% of the total blood volume, dyspnea, cyanosis, digital clubbing, and extracardiac murmurs may occur. Endovascular treatment is safe and offers control of complications from hereditary hemorrhagic telangiectasia and is currently the treatment of choice for these lesions.
Resumo: A síndrome de Rendu-Osler-Weber, também conhecida como telangiectasia hemorrágica hereditária, é uma doença hereditária autossômica dominante. Ela é caracterizada pela presença de múltiplas malformações arteriovenosas e telangiectasias. Este artigo relata dois casos de pacientes com síndrome de Rendu-Osler-Weber que apresentaram malformações arteriovenosas pulmonares e foram submetidos a tratamento endovascular com sucesso. Uma breve revisão da literatura mostra que até 50% dos pacientes com a síndrome têm malformações arteriovenosas pulmonares e geralmente há um histórico familiar positivo nesses pacientes. Em 30% dos casos, elas são múltiplas e estão associadas a complicações mais graves da doença. A maioria dos pacientes é assintomática, mesmo na presença de malformações arteriovenosas com shunt direito-esquerdo. Quando esses shunts excedem 25% do volume total de sangue, podem surgir dispneia, cianose, baqueteamento digital e sopros extracardíacos. O tratamento endovascular oferece segurança e controle das complicações da telangiectasia hemorrágica hereditária, sendo atualmente o tratamento de escolha para essas lesões.
Keywords: Rendu-Osler-Weber; arteriovenous fistula; embolization, therapeutic; telangiectasia, hereditary hemorrhagic.
Copyright© 2024 The authors.
Conflict of interest statement
Conflicts of interest: No conflicts of interest declared concerning the publication of this article.
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References
-
- Garcia RID, Cecatto SB, Costa KS, Angélico FV, Jr, Uvo IP, Rapoport PB. Síndrome de Rendu-Osler-Weber: tratamento clínico e cirúrgico. Rev Bras Otorrinolaringol. 2003;69(4):577–580. doi: 10.1590/S0034-72992003000400022. - DOI
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