Chiari's network: Review of the literature

Marios Loukas, Ashley Sullivan, R. Shane Tubbs, Anthony J. Weinhaus, Trevor DerDerian, Michael Hanna

Research output: Contribution to journalReview articlepeer-review

65 Scopus citations


The Chiari network, present in approximately 2% of the population, and is a reticulated network of fibers originating from the Eustachian connecting to different parts of the right atrium. Its presence results from incomplete reabsorption of the right valve of the sinus venosus. Chiari's network is often clinically insignificant. However, it has been reported to be involved in the pathogenesis of thromboembolic disease, endocarditis, arrhythmias, and entrapment of catheters upon percutaneous intervention. While initially discovered and researched using autopsy dissections, Chiari's network is often found as an incidental finding on diagnostic imaging studies, thus providing new methods for studying its incidence and clinical significance.

Original languageEnglish (US)
Pages (from-to)895-901
Number of pages7
JournalSurgical and Radiologic Anatomy
Issue number10
StatePublished - Dec 2010

Bibliographical note

Copyright 2011 Elsevier B.V., All rights reserved.


  • Catheter entrapment
  • Chiari's network
  • Eustachian valve
  • Heart anatomy
  • Sinus venosus
  • Thromboembolic disease


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