Criteria for endovascular intervention in type B aortic dissection

Area of Science:

• Cardiovascular Surgery
• Vascular Medicine
• Interventional Cardiology

Background:

• The management of uncomplicated type B aortic dissection (un-TBAD) using thoracic endovascular aortic repair (TEVAR) is debated.
• Consensus is lacking on whether preemptive TEVAR is appropriate for un-TBAD patients at risk of disease progression.

Purpose of the Study:

• To review current evidence on TEVAR for un-TBAD.
• To suggest criteria for beneficial endovascular intervention in un-TBAD compared to pharmacotherapy alone.

Main Methods:

• Systematic literature search of PubMed and Cochrane databases.
• Keywords included: type B aortic dissection, risk factors, medical therapy, TEVAR, false lumen expansion, and mortality.
• Paper selection based on title and abstract review.

Main Results:

• Optimal medical therapy is the primary treatment for un-TBAD.
• Risk factors for progression include age, aortic morphology, connective tissue disorders, false lumen thrombosis, and branch involvement.
• TEVAR shows promising short- and long-term outcomes for TBAD.

Conclusions:

• Preemptive TEVAR may be advantageous for un-TBAD patients with identified risk factors.
• Further prospective research is necessary to establish optimal timing for TEVAR in un-TBAD management.