Thrombus formation is not uncommon in longstanding intracardiac catheters, but formation of a thrombus at the tip of a Peritnoeo-venous-atrial shunt, causing obstruction of the tricuspid valve, is a rare complication and frequently unrecognized. A large intracardiac thrombus causing valve obstruction requires surgical removal with the support of cardiopulmonary bypass which is associated with significant morbidity. We successfully removed a thrombus attached to the tip of peritoneovenous shunt without cardiopulmonary bypass in a 25-year-old man.
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