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Updated: Nov 25, 2025

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Outpatient Percutaneous Endovascular Abdominal Aortic Aneurysm Repair: A Single-Center Experience
Tzu-Chin Lo1, Chun-Hsien Hsin2, Ren-Fu Shie1
1Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Institute for Radiological Research, Chang Gung University, No.5, Fusing St., Gueishan Dist., Taoyuan, 33305, Taiwan.
Purpose:
To evaluate the safety of outpatient percutaneous endovascular abdominal aortic repair (PEVAR) versus inpatient PEVAR without or with adjunct procedures.
Materials And Methods:
Between January 2012 and June 2019, a cohort of 359 patients comprising 168 (46.8%) outpatients and 191 (53.2%) inpatients who had undergone PEVAR were enrolled. All the patients were asymptomatic but had indications for endovascular aortic repair, ie, fit for intravenous anesthesia and anatomically feasible with standard devices. Patient sex, age, comorbidities, smoking status, type of anesthesia, adjunct procedures, type of graft device, operative times, mortality, complications, and readmissions were analyzed.
Results:
Median follow-up period was 16.5 months (interquartile range, 9-31 months). Except for a higher percentage of tobacco use (42.6% vs 28.8%; P = .04), dyslipidemia (39.7% vs 19.2%; P < .01), and use of local anesthesia (99.4% vs 82.2%; P < .01) in the outpatients, there was no significant difference in the type of graft and adjunct procedures used. No outpatient mortality occurred. There was no difference in the number, severity, and onset of complications (all P > .05). Outpatient unexpected same-day admission, 30-day readmission, and emergency department visit rates were 4.8%, 2.4% (P = .13), and 10% (P < .01), respectively. Operative times for outpatient PEVAR without adjunct procedures were shorter (P < .01).
Conclusions:
Outpatient PEVAR can be performed with a safety profile similar to that of inpatient PEVAR. The unexpected same-day admission, 30-day readmission, and emergency department visit rates were low. The outpatient PEVARs without adjunct procedures took less time.

