J Korean Soc Echocardiogr.  1999 Dec;7(2):208-211.

Two Cases of Chiari Network

Affiliations
  • 1Department of Internal Medicine, Sejong General Hospital, Pucheon, Korea.

Abstract

A network of strands (Chiari Network) in the right atrium with attachments extending from the crista terminalis to eustachian valve and thebesian valve or sometimes to the floor of the right atrium in the region of the opening of the coronary sinus. While this congenital remnant is seldom clinically important, this membranes have been reported as site of thombus formation, and hence potential etiologies of pulmonary emboli as well as a source of entrapment of a right-heart catheter and arrhythmia. We report two cases of right atrial mass-like chiari form network incidentally detected by transthoracic echocardiography (TTE) and confirmed by transesophageal echocardiography (TEE).

Keyword

Chiari network; Right atrial mass; TTE; TEE

MeSH Terms

Arrhythmias, Cardiac
Catheters
Coronary Sinus
Echocardiography
Echocardiography, Transesophageal
Heart Atria
Membranes
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