Efficacy of Unibody Bifurcated Endovascular Stent-Graft Repair in the Treatment of Abdominal Aortic Aneurysm

OBJECTIVE: To compare the clinical efficacy of unibody bifurcated endovascular stent-graft repair versus conventional open surgery for abdominal aortic aneurysm (AAA). STUDY DESIGN: Interventional study. PLACE AND DURATION OF STUDY: Department of Vascular Surgery, Gansu Province People's Hospital, China, from January 2015 to December 2016. METHODOLOGY: A total of 80 patients with AAA were randomly divided into Group A and Group B, with 40 cases in each group. Group A was treated with conventional open surgical repair, and Group B was treated with unibody bifurcated endovascular stent-graft repair. The efficacy of the two groups was compared. RESULTS: The operation time, intraoperative blood loss, postoperative ambulation time, and postoperative hospital stay in Group B were all lower than those in Group A (all p <0.001). The incidence of pulmonary complications and electrolyte imbalance in Group B were lower than those in Group A (p=0.026 and p <0.001, respectively). The survival rate of patients in Group B at 6 months, 12 months and 24 months after operation was higher than that of Group A (p=0.002, 0.002 and 0.005, respectively). CONCLUSION: Unibody bifurcated endovascular stent-graft repair for abdominal aortic aneurysm has advantages of short operation time, little trauma, short recovery time, high safety and efficacy compared with the conventional open surgery.