Early post-operative central collapse of an Ascyrus Medical Dissection Stent (AMDS) after acute type A aortic dissection repair: case report of successful TEVAR salvage

The Ascyrus Medical Dissection Stent (AMDS) is an adjunctive hybrid prosthesis designed to support true lumen expansion following type A aortic dissection repair. While early series demonstrate favourable aortic remodelling in selected patients, emerging data suggest a risk of central stent collapse. The authors present a case of early post-operative central collapse of an AMDS stent following emergency Type A aortic dissection repair. Subsequent successful rescue treatment with a thoracic aortic endograft demonstrated a successful endovascular salvage strategy in this patient. This case emphasises careful anatomical selection, early post-operative CTA surveillance and timely consideration of supportive TEVAR when collapse is identified.