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CASE REPORT
Year : 2019  |  Volume : 29  |  Issue : 1  |  Page : 32-34

A nonfatal massive pulmonary embolism in a very old patient: The protective filter-effect of the Chiari Network


1 Department of Cardiology, San Giuseppe Multimedica IRCCS Hospital, Milano, Italy
2 Department of Cardiology, Cardiology Clinic, Policlinico San Giorgio, Pordenone, Italy
3 Department of Cardiovascular, MultiMedica IRCCS, Milano, Italy

Correspondence Address:
Andrea Sonaglioni
San Giuseppe Multimedica IRCCS Hospital, San Vittore Street 12, 20123 Milano
Italy
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcecho.jcecho_65_18

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The Chiari network, a net-like structure within the right atrium, has been described as an embryonic remnant of no clinical significance. Its role in facilitating paradoxical arterial embolic events and as a potential site for thrombus formation has been reported in the literature. This case illustrates the protective filter-effect of the Chiari network in a 92-year-old women who presented with the clinical signs and symptoms of acute cor pulmonale. Transthoracic echocardiography revealed a large, S-shaped, and extremely mobile right atrial thrombus within the Chiari network. Here, the authors describe how the Chiari network may have prevented the occurrence of a fatal pulmonary embolism acting as a protective factor.


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