ArticleJACC. Case reports2026
Descending Aorta Perforation During Transseptal Puncture for Left Atrial Appendage Closure.
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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
backgroundAortic root injury during transseptal puncture (TSP) is a rare but well-recognized complication. However, injury to the descending aorta has not previously been described in this context. CASE SUMMARY: A 57-year-old woman underwent left atrial appendage closure. During TSP using the VersaCross Connect radiofrequency-powered system and a 15-F steerable sheath, an unrecognized perforation of the descending aorta occurred. Despite repeated transthoracic echocardiograms showing no pericardial effusion and initial hemodynamic stability, she subsequently developed a mediastinal hematoma and bilateral pleural effusion. Management required an emergency percutaneous thoracic endovascular aortic repair, followed by surgical evacuation of the hematoma. DISCUSSION: Excessive tenting during radiofrequency-powered TSP, related to interatrial septum aneurysm, resulted in injury to the descending aorta with life-threatening consequences. TAKE-HOME MESSAGE: Radiofrequency-powered systems for TSP have enhanced tissue penetration capability and should therefore be used with caution, particularly in the presence of an interatrial septum aneurysm and atypical echocardiographic windows.
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