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Although there was a trend toward lower type II endoleak rates with our branch vessel management strategy, this did not reach statistical significance. Our data also indicated that there is a high incidence of lumbar endoleaks, and they are difficult to treat. Therefore, we believe there should be ongoing research into means to prevent lumbar endoleaks.

The present review found little benefit in performing intraoperative frozen section in this setting. As a diagnostic test the cost of frozen section (NZ $200 for each frozen section) needs to be weighed against its low clinical benefit.

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