Novel embolization techniques show promise for Type II endoleaks after EVARNew Embolization Techniques Show Promise for Type II Endoleaks

This narrative review summarizes emerging embolization techniques for managing Type II endoleaks (T2ELs) after endovascular aneurysm repair (EVAR). The authors focus on transcaval embolization (TCE), laser-assisted transgraft embolization (LATE), and shape memory polymer (SMP) embolization, comparing them with conventional embolization methods.

For TCE and LATE, the review describes encouraging early technical and clinical outcomes, though specific effect sizes and absolute numbers are not reported. For SMP embolization, the authors note significant sac shrinkage in more than 85% of patients and prevention of clinically significant T2ELs. These findings are presented qualitatively, without pooled analyses or statistical detail.

The review acknowledges that the evidence remains limited. Larger studies are needed to confirm long-term outcomes and define optimal use of these techniques. Safety data, including adverse events and tolerability, are not reported. No information on funding or conflicts of interest is provided.

In practice, TCE, LATE, and prophylactic SMP embolization are described as promising alternatives to conventional methods, offering high technical success and the potential to reduce reinterventions. However, clinicians should interpret these findings cautiously given the limited and early nature of the evidence.