ArticleJACC. Case reports2026
Blunt Trauma-Induced Atrial Fibrillation as First Sign of an Unspecified Cardiac Hemangioendothelioma.
Article in JACC. Case reports, 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
backgroundHemangioendotheliomas are rare vascular tumors comprising different entities, and cardiac localization has been seldom reported. CASE SUMMARY: A 40-year-old man presented with atrial fibrillation after blunt chest trauma. Subsequent transthoracic echocardiography revealed a large right atrial mass. Cardiac magnetic resonance imaging and positron emission tomography-computed tomography showed a nonmetastatic 76 × 76-mm tumor obstructing inflow and encasing the right coronary artery (RCA). Biopsy suggested a mesenchymal neoplasm. Radical resection of the right atrium and RCA was performed, with reconstruction using a bovine pericardial patch and a saphenous vein interposition graft. Histopathology confirmed a hemangioendothelioma without a definitive subtype. Recovery was uneventful, with restored cardiac function and no recurrence for 5 years. DISCUSSION: Management according to sarcoma principles favors complete resection. Overall survival is poor, especially in patients with metastatic disease. This case is notable for trauma-associated atrial fibrillation, oncologic RCA resection, and venous graft reconstruction. TAKE-HOME MESSAGES: Radical resection with coronary reconstruction is feasible. Unexplained, possibly smartwatch-detected arrhythmias after trauma warrant structural evaluation.
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