Detecting Chiari Network in Patients to Avoid Procedural Complications

Sabrina Arshed, Mohamed M. Osman, Shilpi Singh, John Webb, Mark Niemiera, Shuvendu Sen, Abdulla Yousif


Chiari networks are remnants of embryologic structures whose incomplete involution creates a net-like membrane in the right atrium. When discovered it is normally of little clinical significance and is found in 2-10% of the population. Nevertheless, there are reported cases of this formation having causation in atrial arrhythmias, thrombus formation, tumor development, tricuspid regurgitation, embolus and catheter entrapment/entanglement during invasive procedures. We present a case of a patient with an incidental finding of Chiari network on echocardiography and discuss the importance of detecting these formations before certain cardiac procedures.

J Med Cases. 2016;7(7):291-293


Cardiac; Procedures; Chiari network; Catheterization; Echocardiography; Complications

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