Key result
Standard operative repair for abdominal aortic aneurysms >5 cm in good-risk patients sets a benchmark of <5% operative mortality and >90% 1-year survival for newer endograft techniques.
Why the study?
What are the standard outcomes of operative AAA repair that newer minimally invasive therapies must meet?
What are the standard outcomes of operative AAA repair that newer minimally invasive therapies must meet?
Standard operative repair for AAA > 5 cm in good-risk patients sets a high benchmark (mortality < 5%, 1-year survival > 90%) that newer endovascular techniques must meet.
Benchmark for endograft evaluation in good-risk AAA; leaves open durability and generalizability in broader populations.
Surgical treatment of abdominal aortic aneurysm (AAA) is being challenged by newer, minimally invasive therapies. Such new treatment strategies will need to prove themselves against concurrent results of standard operative AAA repair, within defined medical risk and aneurysm morphological categories. We review the natural history of AAAs, the medical risk levels for elective AAA repair, aneurysm morphology and its impact on operative mortality, the issue of high-risk patient treatment, and the current standard of care for AAAs based on single-center, multicenter, and population-based statistics. In good-risk patients, aneurysms > 5 cm in diameter are best treated by replacement with a prosthetic graft. Operative mortality should be < 5% 1-year survival > 90%. Aortic endograft techniques must meet or exceed these standards if they are to supplant standard surgical repair.
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Zarins et al. (1997) conducted a review in Abdominal aortic aneurysm (AAA). Standard operative AAA repair vs. Aortic endograft techniques was evaluated on Operative mortality and 1-year survival. Standard operative repair for abdominal aortic aneurysms >5 cm in good-risk patients sets a benchmark of <5% operative mortality and >90% 1-year survival for newer endograft techniques.
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