Background: The purpose of this study is to show long-term results of endovascular repair of abdominal aortic aneurysms with Zenith AAA Endovascular Graft in a Japanese population.
Patients and Methods: Fifteen patients with abdominal aortic aneurysms, who underwent endovascular repair with Zenith AAA Endovascular Graft before approval by the Ministry of Health, Labor and Welfare, were included in this study. All but one patient were within the anatomical inclusion criteria of the instruction for use. Five patients were deemed as low-risk, and the other ten as high-risk.
Results: There were no perioperative deaths. During the mean follow-up of 66 months, 10 patients (67%) died of various causes including malignancies. However, there was no death related to the abdominal aortic aneurysm. Five-year and seven-year survivals were 53% and 53%, respectively. Those of low-risk patients were 100% and 100%, while those of high-risk patients were 30% and 30%.
Conclusions: Endovascular repair of abdominal aortic aneurysms with Zenith AAA Endovascular Graft may be durable in limited patients. However, further evaluation should be undertaken to prove its efficacy in high-risk patients.
