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A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
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Renal Artery Aneurysms in the Inpatient Setting
Mitri K Khoury1, Fred A Weaver2, Shirling Tsai3
1University of Texas Southwestern, Dallas, TX; Division of Vascular and Endovascular Surgery, Dallas, TX.
Annals of Vascular Surgery
|July 8, 2022
Summary
Most renal artery aneurysm (RAA) surgeries are nonelective, with a significant rupture proportion. This trend may increase due to lower repair thresholds, impacting patient outcomes.
Area of Science:
- Vascular Surgery
- Health Services Research
Background:
- The rupture risk of renal artery aneurysms (RAAs) is not well-defined.
- Previous studies may not represent national RAA care patterns due to data from academic centers.
Purpose of the Study:
- To analyze the patterns of nonelective versus elective surgery for RAAs requiring inpatient admission.
- To evaluate outcomes, including nephrectomies and in-hospital mortality, using a national database.
Main Methods:
- Utilized the National Inpatient Sample (NIS) database from 2012 to 2018.
- Identified patients with RAAs using ICD-9 and ICD-10 codes.
- Analyzed the proportion of nonelective surgeries and in-hospital mortality rates.
Main Results:
- 64.4% of 590 RAA admissions were nonelective, with an increasing trend.
- Nephrectomy rate was 7.1%; in-hospital mortality was 1.4%.
- Ruptured RAAs (rRAAs) had higher mortality (6.0%) and nephrectomy rates (16.0%) compared to non-ruptured RAAs.
Conclusions:
- RAA treatment predominantly occurs in the nonelective setting, with a high proportion of ruptures.
- The rising incidence of nonelective RAA cases may be linked to decreased repair thresholds.
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