Uric Acid: A Novel Risk Factor for Acute Kidney Injury in High-Risk Cardiac Surgery Patients?

2009 ◽  
Vol 30 (5) ◽  
pp. 425-429 ◽  
Author(s):  
A. Ahsan Ejaz ◽  
Thomas M. Beaver ◽  
Michiko Shimada ◽  
Puneet Sood ◽  
Vijaykumar Lingegowda ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Uric Acid ◽  
Cardiac Surgery ◽  
Risk Factor ◽  
High Risk ◽  
Kidney Injury

scholarly journals Effects of hyperuricaemia, with the superposition of being overweight and hyperlipidaemia, on the incidence of acute kidney injury following cardiac surgery: a retrospective cohort study

BMJ Open ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. e047090
Author(s):  
Yiqi Su ◽  
Haoxuan Li ◽  
Yang Li ◽  
Xialian Xu ◽  
Bo Shen ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Uric Acid ◽  
Cardiac Surgery ◽  
Risk Factor ◽  
Independent Risk Factor ◽  
Multivariate Logistic Regression Analysis ◽  
Kidney Injury ◽  
Acid Group ◽  
Tertiary Hospital ◽  
University Teaching

ObjectivesAcute kidney injury (AKI) is a common complication of cardiac surgery. This study aimed to explore the effects of hyperuricaemia, being overweight and hyperlipidaemia as risk factors for AKI in patients following cardiac surgery (cardiac surgery-associated acute kidney injury (CSA-AKI)).DesignRetrospective observational study.SettingUniversity teaching, grade-A tertiary hospital in Shanghai, China.ParticipantsPatients who underwent cardiac surgery from July 2015 to December 2015 in Zhongshan Hospital, Fudan University.Main outcome measuresWe investigated the effect of hyperuricaemia, in combination with being overweight and hyperlipidaemia, on the risk of CSA-AKI.ResultsA total of 1420 patients were enrolled. The AKI incidence in the highest uric acid group was 44.4%, while that in the lowest uric acid group was 28.5% (p<0.001). Patients in the higher uric acid quartiles were more likely to be overweight and hyperlipidaemic at the same time (p<0.001). Multivariate logistic regression analysis showed that hyperuricaemia was an independent risk factor for AKI (OR=1.237, 95% CI 1.095 to 1.885; p=0.009); being overweight or hyperlipidaemia alone was not an independent risk factor, but the combination of being overweight and hyperlipidaemia was (OR=1.544, 95% CI 1.059 to 2.252; p=0.024). In the final model, the OR value increased to 3.126 when hyperuricaemia was combined with being overweight and hyperlipidaemia, and the Hosmer-Lemeshow test showed that all three models fit well (p=0.433, 0.638 and 0.597, respectively).ConclusionsThe combination of being overweight and having hyperlipidaemia was an independent risk factor, but being overweight or having hyperlipidaemia alone was not. The combination of hyperuricaemia, being overweight and hyperlipidaemia further increased the risk of CSA-AKI.

scholarly journals Preoperative hemoglobin and uric acid levels as risk factors for acute kidney injury in cardiac surgery patients

2020 ◽  
Vol 73 (1-2) ◽  
pp. 5-12
Author(s):  
Miodrag Golubovic ◽  
Andrej Preveden ◽  
Ranko Zdravkovic ◽  
Jelena Vidovic ◽  
Bojan Mihajlovic ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Kidney Injury ◽  
Uric Acid ◽  
Cardiac Surgery ◽  
Kidney Injury ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Preoperative Hemoglobin ◽  
Significant Difference ◽  
Acute Kidney Injury Development

Introduction. Acute kidney injury associated with cardiac surgery is a common and significant postoperative complication. With a frequency of 9 - 39% according to different studies, it is the second most common cause of acute kidney injury in intensive care units, and an independent predictor of mortality. This study aimed to investigate the importance of preoperative hemoglobin and uric acid levels as risk factors for acute kidney injury in the postoperative period in cardiac surgery patients. Material and Methods. The study included a total of 118 patients who were divided into two groups. Each group included 59 patients; the fist group included patients who developed acute kidney injury and required renal replacement therapy, and the second included patients without acute kidney injury. Types of cardiac surgery included coronary, valvular, combined, aortic dissection, and others. All necessary data were collected from patient medical records and the electronic database. Results. A statistically significant difference was found between the groups in preoperative hemoglobin levels (108.0 vs. 143.0 g/l, p = 0.0005); postoperative urea (26.4 vs. 5.8 mmol/l, p = 0.0005) and creatinine (371.0 vs. 95.0 ?mol/l, p = 0.0005), acute phase inflammatory reactants C-reactive protein (119.4 vs. 78.9 mg/l, p = 0.002) and procalcitonin (7.0 vs. 0.2 ng/ml, p = 0.0005), creatine kinase myocardial band isoenzyme (1045.0 vs. 647.0 mg/l, p = 0.014); duration of extracorporeal circulation (103.5 vs. 76.0 min, p = 0.0005) and ascending aortic clamp during cardiac surgery (89.0 vs. 67.0 min, p = 0.0005). The exception was the preoperative uric acid level, where there was no statistically significant difference (382.0 vs. 364.0 ?mol/l, p = 0.068). There was a statistically significant correlation between the use of inotropic agents and acute kidney injury development. Conclusion. There is a correlation between the preoperative low hemoglobin levels and postoperative acute kidney injury. There is no statistically significant correlation between the preoperative levels of uric acid and postoperative acute kidney injury.

scholarly journals Acute kidney injury in renal transplant recipients undergoing cardiac surgery

2020 ◽  
Vol 36 (1) ◽  
pp. 185-196
Author(s):  
Gregory L Hundemer ◽  
Anand Srivastava ◽  
Kirolos A Jacob ◽  
Neeraja Krishnasamudram ◽  
Salman Ahmed ◽  
...  
Keyword(s):  
Risk Factors ◽  
Acute Kidney Injury ◽  
Cardiac Surgery ◽  
Risk Factor ◽  
Renal Transplant ◽  
Kidney Disease ◽  
Kidney Injury ◽  
Renal Transplant Recipients ◽  
Transplant Recipients ◽  
Trough Levels

Abstract Background Acute kidney injury (AKI) is a key risk factor for chronic kidney disease in the general population, but has not been investigated in detail among renal transplant recipients (RTRs). We investigated the incidence, severity and risk factors for AKI following cardiac surgery among RTRs compared with non-RTRs with otherwise similar clinical characteristics. Methods We conducted a retrospective cohort study of RTRs (n = 83) and non-RTRs (n = 83) who underwent cardiac surgery at two major academic medical centers. Non-RTRs were matched 1:1 to RTRs by age, preoperative (preop) estimated glomerular filtration rate and type of cardiac surgery. We defined AKI according to Kidney Disease: Improving Global Outcomes criteria. Results RTRs had a higher rate of AKI following cardiac surgery compared with non-RTRs [46% versus 28%; adjusted odds ratio 2.77 (95% confidence interval 1.36–5.64)]. Among RTRs, deceased donor (DD) versus living donor (LD) status, as well as higher versus lower preop calcineurin inhibitor (CNI) trough levels, were associated with higher rates of AKI (57% versus 33% among DD-RTRs versus LD-RTRs; P = 0.047; 73% versus 36% among RTRs with higher versus lower CNI trough levels, P = 0.02). The combination of both risk factors (DD status and higher CNI trough level) had an additive effect (88% AKI incidence among patients with both risk factors versus 25% incidence among RTRs with neither risk factor, P = 0.004). Conclusions RTRs have a higher risk of AKI following cardiac surgery compared with non-RTRs with otherwise similar characteristics. Among RTRs, DD-RTRs and those with higher preop CNI trough levels are at the highest risk.

Long-term Effects of Remote Ischemic Preconditioning on Kidney Function in High-risk Cardiac Surgery Patients

2017 ◽  
Vol 126 (5) ◽  
pp. 787-798 ◽  
Author(s):  
Alexander Zarbock ◽  
John A. Kellum ◽  
Hugo Van Aken ◽  
Christoph Schmidt ◽  
Mira Küllmar ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Cardiac Surgery ◽  
High Risk ◽  
Renal Dysfunction ◽  
Ischemic Preconditioning ◽  
Absolute Risk ◽  
Kidney Injury ◽  
Absolute Risk Reduction ◽  
Remote Ischemic Preconditioning ◽  
Major Adverse Kidney Events

Abstract Background In a multicenter, randomized trial, the authors enrolled patients at high-risk for acute kidney injury as identified by a Cleveland Clinic Foundation score of 6 or more. The authors enrolled 240 patients at four hospitals and randomized them to remote ischemic preconditioning or control. The authors found that remote ischemic preconditioning reduced acute kidney injury in high-risk patients undergoing cardiac surgery. The authors now report on the effects of remote ischemic preconditioning on 90-day outcomes. Methods In this follow-up study of the RenalRIP trial, the authors examined the effect of remote ischemic preconditioning on the composite endpoint major adverse kidney events consisting of mortality, need for renal replacement therapy, and persistent renal dysfunction at 90 days. Secondary outcomes were persistent renal dysfunction and dialysis dependence in patients with acute kidney injury. Results Remote ischemic preconditioning significantly reduced the occurrence of major adverse kidney events at 90 days (17 of 120 [14.2%]) versus control (30 of 120 [25.0%]; absolute risk reduction, 10.8%; 95% CI, 0.9 to 20.8%; P = 0.034). In those patients who developed acute kidney injury after cardiac surgery, 2 of 38 subjects in the remote ischemic preconditioning group (5.3%) and 13 of 56 subjects in the control group (23.2%) failed to recover renal function at 90 days (absolute risk reduction, 17.9%; 95% CI, 4.8 to 31.1%; P = 0.020). Acute kidney injury biomarkers were also increased in patients reaching the major adverse kidney event endpoint compared to patients who did not. Conclusions Remote ischemic preconditioning significantly reduced the 3-month incidence of a composite endpoint major adverse kidney events consisting of mortality, need for renal replacement therapy, and persistent renal dysfunction in high-risk patients undergoing cardiac surgery. Furthermore, remote ischemic preconditioning enhanced renal recovery in patients with acute kidney injury.

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