COMPARATIVE STUDY
JOURNAL ARTICLE
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Outcomes of Endovascular Treatment and Open Repair for Renal Artery Aneurysms: A Single-Center Retrospective Comparative Analysis.

PURPOSE: To compare outcomes of endovascular repair and open repair in treatment of renal artery aneurysms (RAAs).

MATERIALS AND METHODS: Retrospective analysis included 93 RAAs in 86 patients (56 women; mean age ± SD, 48.8 y ± 12.4) treated from January 2002 to December 2015. Endovascular group comprised 52 RAAs in 45 patients, and operative group comprised 41 RAAs in 41 patients; mean follow-up duration was 49.9 months. Operative variables and perioperative and follow-up outcomes were compared between the 2 groups.

RESULTS: Endovascular group had shorter operative time (85.2 min vs 270.4 min; P < .001), less estimated blood loss (38.8 mL vs 416.7 mL; P < .001), shorter intensive care unit (ICU) stay (0 d vs 1.2 d; P < .001), and shorter hospitalization time (7.0 d vs 12.63 d; P = .013) compared with operative group. In-hospital mortality was 0% in both groups. Overall complication rates did not differ between endovascular (22.2%) and operative (19.5%) groups (P = .758). During follow-up, no deaths occurred in either group. Follow-up morbidity was 13.5% for endovascular group and 4.9% for operative group (P = .106). There were no significant differences between groups in average percentage change of estimated glomerular filtration rate (-2.3% ± 12.2 vs -0.8% ± 12.4; P = .538), systolic blood pressure (1.7% ± 10 vs -1.6% ± 8.3; P = .207), and diastolic blood pressure (-0.2% ± 9.7 vs -1.2% ± 10.4; P = .741).

CONCLUSIONS: Endovascular repair and open repair of RAA had similar favorable perioperative and midterm outcomes, but endovascular repair had shorter operative time, ICU stay, hospitalization time, and less estimated blood loss.

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