Key result
Endovascular aneurysm repair significantly decreased infrarenal and suprarenal aortic angles (P<0.001), and larger post-EVAR infrarenal angles correlated with increased type Ia endoleaks (P=0.037).
Why the study?
Does endovascular aneurysm repair (EVAR) change suprarenal and infrarenal aortic angles in patients with fusiform infrarenal aortic aneurysms?
Observational (n=70)
Does endovascular aneurysm repair (EVAR) change suprarenal and infrarenal aortic angles in patients with fusiform infrarenal aortic aneurysms?
EVAR leads to a significant decrease in suprarenal and infrarenal aortic angles, with larger post-procedural infrarenal angles correlating with an increased risk of type Ia endoleaks.
Larger post-EVAR infrarenal angles may signal higher type Ia endoleak risk; hypothesis-generating in cohort data and needs prospective validation.
PURPOSE: We investigated whether suprarenal and infrarenal aortic angles change after the endovascular aneurysm repair (EVAR) procedure and during follow-up, and investigated the correlation between infrarenal aortic angle after EVAR and type Ia endoleaks. METHODS: Data collected on 70 EVAR procedures for a fusiform infrarenal aortic aneurysm performed between May 2006 and December 2012 were supplemented with a retrospective review of charts and radiographs. RESULTS: The greater the preoperative infrarenal aortic angle, the greater the suprarenal aortic angle (r = 0.72, P < 0.001). The infrarenal aortic angle decreased after the EVAR procedure and continued to decrease slowly thereafter (all P < 0.001). Suprarenal aortic angle decreased immediately after the EVAR procedure and continued to decrease during the first month (P < 0.001). No differences in angulation were observed based on stent graft type. Type Ia endoleaks occurred with significantly greater incidence in patients with a larger post EVAR infrarenal angle (P = 0.037). CONCLUSION: The infrarenal aortic angle decreased significantly immediately after the EVAR procedure and continued to decrease slowly thereafter. Suprarenal aortic angle decreased immediately after the EVAR procedure and continued to decrease during the first month. We found a correlation between infrarenal and suprarenal aortic angle. Type Ia endoleaks occurred with greater incidence in patients with a larger infrarenal angle immediately after EVAR.
No takes yet. Share an insight, caveat, or question.
Lee et al. (2014) conducted an observational in Fusiform infrarenal aortic aneurysm (n=70). Endovascular aneurysm repair (EVAR) was evaluated on Changes in suprarenal and infrarenal aortic angles (p=<0.001). Endovascular aneurysm repair significantly decreased infrarenal and suprarenal aortic angles (P<0.001), and larger post-EVAR infrarenal angles correlated with increased type Ia endoleaks (P=0.037).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: