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Published on: February 2, 2021
Contrast-Associated Acute Kidney Injury in High-Risk Patients Undergoing Peripheral Vascular Interventions
Satinderjit Locham1, Alejandra Rodriguez2, Mark D Balceniuk1
1Division of Vascular Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, NY, USA.
Insights
Prophylactic intravenous hydration and CO2 angiography did not reduce contrast-associated acute kidney injury (CA-AKI) in high-risk patients undergoing peripheral vascular interventions. Reduced kidney function and diabetes are key predictors of CA-AKI.
Area of Science:
- Nephrology
- Cardiovascular Interventions
- Radiology
Background:
- Contrast-associated acute kidney injury (CA-AKI) is a significant complication in patients undergoing peripheral vascular interventions (PVI).
- High-risk patients, particularly those with chronic kidney disease (CKD), are more susceptible to CA-AKI.
- Prophylactic strategies like intravenous hydration (IV prophylaxis) and carbon dioxide (CO2) angiography are explored to mitigate renal injury.
Purpose of the Study:
- To evaluate the efficacy of prophylactic IV hydration and CO2 angiography in preventing CA-AKI in high-risk patients undergoing PVI.
- To determine the incidence and identify risk factors for CA-AKI in this patient population.
Main Methods:
- Retrospective analysis of 4497 patients with CKD stage 3-5 undergoing elective PVI from 2017-2021, using the Vascular Quality Initiative (VQI) database.
- Patients were categorized into groups receiving IV prophylaxis versus no prophylaxis.
- CA-AKI was defined as a creatinine rise >0.5 mg/dL or new dialysis within 48 hours; logistic regression was used for analysis.
Main Results:
- The overall incidence of CA-AKI was 0.93%.
- Neither IV prophylaxis nor CO2 angiography showed a significant reduction in CA-AKI compared to no prophylaxis.
- Severity of CKD and diabetes were identified as independent predictors of CA-AKI. Patients with CA-AKI faced significantly higher 30-day mortality and cardiopulmonary complications.
Conclusions:
- Prophylactic IV hydration and CO2 angiography do not appear to reduce renal injury in high-risk CKD patients undergoing PVI.
- Reduced kidney function and a history of diabetes are significant predictors of CA-AKI.
- Development of post-procedural AKI is associated with substantially increased morbidity and mortality risk.
Abstract:
Objective: This study aims to evaluate the use of prophylactic intravenous hydration (IV prophylaxis) and carbon dioxide (CO2) angiography in reducing contrast associated-acute kidney injury (CA-AKI) and determine the overall incidence and risk factors of CA-AKI in high-risk patients undergoing peripheral vascular interventions (PVI). Method: Only patients undergoing elective PVI from 2017 to 2021 with chronic kidney disease (CKD) stage 3-5 in the Vascular Quality Initiative (VQI) database were included. Patients were grouped into IV prophylaxis vs no prophylaxis. The study's primary outcome was CA-AKI, defined as a rise in creatinine (>.5 mg/dL) or new dialysis within 48 hours following contrast administration. Standard univariate and multivariable (logistic regression) analyses were conducted. Results: A total of 4497 patients were identified. Of these, 65% received IV prophylaxis. The overall incidence of CA-AKI was .93%. No significant difference was seen in overall contrast volume (mean (SD): 66.89(49.54) vs 65.94(51.97) milliliters, P > .05) between the 2 groups. After adjusting for significant covariates, the use of IV prophylaxis (OR (95% CI): 1.54(.77-3.18), P = .25) and CO2 angiography (OR (95%CI): .95(.44-2.08), P = .90) was not associated with a significant reduction in CA-AKI compared to the patients with no prophylaxis. The severity of CKD and diabetes were the only predictor of CA-AKI. Compared to patients with no CA-AKI, patients with CA-AKI were at risk of higher 30-day mortality (OR (95% CI): 11.09 (4.25-28.93)) and cardiopulmonary complications (OR (95% CI): 19.03 (8.74-41.39) following PVI (Both P < .001). Conclusion: Using a large national vascular database, our study demonstrates that prophylactic use of IV hydration and CO2 angiography in high-risk CKD patients is not associated with a reduction in renal injury following PVI. Reduced kidney function and history of diabetes is an independent predictor of CA-AKI and patients that develop post-procedural AKI are at an increased risk of morbidity and mortality.
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