Related Experiment Video
Updated: Nov 30, 2025

Reproducible Arterial Denudation Injury by Infrarenal Abdominal Aortic Clamping in a Murine Model
Published on: November 24, 2016
The Incidence, Risk Factors and In-Hospital Mortality of Acute Kidney Injury in Patients After Surgery for Acute Type
Linji Li1,2, Jiaojiao Zhou3, Xuechao Hao1
1Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, China.
Insights
Acute kidney injury (AKI) is common after acute type A aortic dissection (AAAD) surgery, affecting over 70% of patients and increasing mortality. Identifying risk factors for AKI and its associated mortality is crucial for improving patient outcomes.
Area of Science:
- Cardiology
- Nephrology
- Surgical Outcomes
Background:
- Acute kidney injury (AKI) is a frequent complication following cardiac surgery, associated with increased morbidity and mortality.
- Acute type A aortic dissection (AAAD) poses a significant threat, with post-operative AKI being a closely related concern.
- Limited data exist on AKI incidence using the latest Kidney Disease: Improving Global Outcomes (KDIGO) criteria and in-hospital mortality in AAAD patients.
Purpose of the Study:
- To determine the incidence of AKI, defined by KDIGO criteria, in patients undergoing surgical treatment for AAAD.
- To identify risk factors associated with the occurrence of AKI in this patient population.
- To analyze risk factors contributing to in-hospital mortality among AAAD patients who develop AKI.
Main Methods:
- Retrospective review of 335 patients who underwent surgical treatment for AAAD between March 2009 and June 2016.
- Screening for AKI status and analysis of potential risk factors for AKI and in-hospital mortality.
- Statistical analysis including independent-sample t-tests, Chi-square tests, and logistic regression to identify significant risk factors.
Main Results:
- AKI incidence was 71.94% among AAAD patients, with stages 1, 2, and 3 occurring in 35.26%, 31.95%, and 32.78%, respectively.
- In-hospital mortality rate was 21.16%.
- Independent risk factors for AKI included higher BMI, chronic kidney disease, chronic liver disease, longer cardiopulmonary bypass duration, red blood cell transfusion, and hypoproteinemia. Mortality risk factors included AKI stage, deep hypothermic circulatory arrest, lactic acidosis, and need for continuous renal replacement therapy.
Conclusions:
- AKI is a prevalent complication in surgically treated AAAD patients, significantly elevating mortality risk.
- Identifying and mitigating risk factors for AKI are essential for improving post-operative outcomes in AAAD patients.
- Further research and clinical attention are warranted to prevent AKI and manage its consequences in this high-risk group.
Abstract:
Background: Acute kidney injury (AKI) is a common complication of cardiac surgery, which could lead to increased morbidity and mortality. Acute type A aortic dissection (AAAD) is a life-threatening cardiac disease and can be closely related to post-operative AKI. However, data on the incidence of AKI defined by the newest Kidney Disease: Improving Global Outcomes (KDIGO) criteria and in-hospital mortality of a homogeneous population who underwent AAAD are limited. We aimed to investigate the incidence of AKI defined by the KDIGO criteria and the risk factors associated with the outcomes among AAAD-induced AKI patients. Methods: We reviewed 335 patients who underwent surgical treatment for AAAD between March 2009 and June 2016. We screened the patients' AKI status and analyzed probably risk factors of AKI and in-hospital mortality. Independent-sample t-test or Chi-square test was performed to identify differences between AKI and non-AKI groups and survivors with AKI and non-survivors with AKI, respectively. The logistic regression model was applied to identify independent risk factors. Results: AKI occurred in 71.94% of AAAD patients, including 85 stage 1 (35.26%), 77 stage 2 (31.95%), and 79 stage 3 (32.78%) patients. The in-hospital mortality rate was 21.16%. Logistic regression analysis showed that the body mass index, chronic kidney disease, chronic liver disease, cardiopulmonary bypass duration, red blood cell transfusion, and hypoproteinemia were the independent significant risk factors of the occurrence of post-operative AKI. The risk factors associated with in-hospital mortality among AAAD-induced AKI patients included AKI stage (odds ratio (OR), 3.322), deep hypothermic circulatory arrest (OR, 2.586), lactic acidosis (OR, 3.407), and continuous renal replacement therapy (OR, 3.156). Conclusion: For AAAD patients undergoing surgery, AKI was a common complication, and it increased patients' mortality risk. Therefore, identifying the risk factors of AKI and preventing post-operative AKI are important for improving the post-operative outcomes of AAAD patients. Clinical Trial Registration: ChiCTR, ChiCTR1900021290. Registered 12 February 2019, http://www.chictr.org.cn/showproj.aspx?proj=35795.
Related Concept Videos
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Cardiac Catheterization I: Pre-Procedure Overview
Acute Kidney Injury I: Introduction
Aneurysm IV: Nursing Management
Acute Kidney Injury II: Pathophysiology
Aneurysm III: Interprofessional Care

