Endovascular strategies for post-dissection aortic aneurysm (PDAA).

Area of Science:

• Cardiovascular Surgery
• Vascular Endovascular Therapy
• Aortic Disease

Background:

• Residual patent false lumen (FL) after type B aortic dissection (TBAD) repair is linked to poor long-term survival.
• Distal aneurysmal dilatation occurs in 13.4-62.5% of patients post-primary AD repair.
• Open surgery for post-dissection aortic aneurysm (PDAA) has high mortality and morbidity.

Purpose of the Study:

• To review available endovascular techniques for treating PDAA.
• To discuss the outcomes of endovascular repair for PDAA.

Main Methods:

• Review of endovascular strategies for PDAA, including true lumen (TL) and FL interventions.
• Discussion of techniques such as parallel stent-graft, branched/fenestrated stent-graft, FL embolization, and candy-plug.

Main Results:

• Endovascular repair aims to promote FL thrombosis and aortic remodeling.
• TL intervention techniques are safe and effective for PDAA.
• FL intervention techniques are used in selected PDAA cases.

Conclusions:

• Endovascular repair presents an effective, minimally invasive option for PDAA.
• Various endovascular techniques address the challenges of PDAA, including narrow TL and FL anatomy.
• Further research into endovascular outcomes for PDAA is warranted.