ArticleJournal of cardiothoracic surgery2026
Right atrial thrombus and pulmonary embolism one year after ventricular septal defect patch repair: successful surgical management of a complicated case.
Article in Journal of cardiothoracic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundRight heart thrombi are rare but life-threatening, with particularly high mortality when accompanied by pulmonary embolism (PE). Cardiac surgery may predispose to in-situ thrombus formation via suture lines or patch material, yet thromboembolic risk and preventive strategies following Ventricular Septal Defect (VSD) repair remain unclear. Here, we report a case of a young patient with a massive right atrial (RA) thrombus with PE one year after VSD repair in the absence of any known hypercoagulable state. CASE PRESENTATION: A 17-year-old male with a history of surgical VSD repair one year earlier, who was not taking any antithrombotic therapy prior to presentation, presented with acute dyspnea, tachycardia, and severe hypoxia. Transthoracic echocardiography revealed a large, freely mobile RA mass. Subsequent CT pulmonary angiography and cardiac magnetic resonance confirmed a massive right pulmonary artery embolus and characterized the RA mass as an intracardiac thrombus. Because of clinical deterioration despite therapeutic anticoagulation, he underwent a successful urgent cardiac surgery with RA mass excision and pulmonary embolectomy. Postoperative histopathology confirmed the mass to be a thrombus.
conclusionsOur case highlights a rare late RA thrombus with PE one year after surgical VSD repair, requiring urgent surgery. Further research is needed to clarify post-VSD closure surveillance and thromboprophylaxis strategies.
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