Pulmonary Arteriovenous Malformations

Shivu Kaushik, James Gossage

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Pulmonary arteriovenous malformations (PAVM) are caused by abnormal communications between pulmonary arteries and veins. PAVM are fairly uncommon and the exact incidence in the pediatric population is not known. Hereditary hemorrhagic telangiectasia (HHT) is the most common etiology for PAVM in children. Symptoms of PAVM in children include dyspnea on exertion and exercise intolerance. Epistaxis is the most common symptom of pediatric PAVM patients with HHT. Transthoracic contrast echocardiography is the screening test of choice for the detection of PAVM. A non-contrasted helical multidetector computed tomography scan of the chest with 1-2.5° mm reconstructions is now considered the gold standard for determining whether a PAVM is amenable to treatment. Children with PAVM with a feeding artery diameter greater than 2-3° mm even if asymptomatic should be considered for transcatheter embolotherapy unless contraindicated. The aim of treatment is to prevent future complications of PAVM such as stroke and brain abscess.

Original languageEnglish (US)
Title of host publicationPediatric Cardiovascular Medicine
Subtitle of host publicationSecond Edition
PublisherWiley-Blackwell
Pages660-666
Number of pages7
ISBN (Print)9781444335897
DOIs
StatePublished - Jan 13 2012

Keywords

  • Hereditary hemorrhagic telangiectasia
  • Pediatric
  • Pulmonary arteriovenous malformations
  • Transcatheter embolotherapy
  • Transthoracic contrast echocardiography

ASJC Scopus subject areas

  • Medicine(all)

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  • Cite this

    Kaushik, S., & Gossage, J. (2012). Pulmonary Arteriovenous Malformations. In Pediatric Cardiovascular Medicine: Second Edition (pp. 660-666). Wiley-Blackwell. https://doi.org/10.1002/9781444398786.ch46