Outcomes Of Acute Kidney Injury Research Articles

INCIDENCE, RISK FACTORS, AND OUTCOME OF ACUTE KIDNEY INJURY AMONG CHILDREN IN PEDIATRIC INTENSIVE CARE UNIT IN A TERTIARY CARE HOSPITAL

Objective: The study aimed to study the incidence, risk factors, outcome, and disease pattern of acute kidney injury (AKI) among children admitted in the pediatric intensive care unit (PICU). Methods: The present study was a prospective study done to study the incidence, risk factors, and outcome of AKI among children of the age group 1 month–12 years admitted in PICU at a tertiary care hospital. Results: A total of 480 PICU admissions were recruited, of which 276 children met the inclusion criteria. Of these, AKI was diagnosed in 119 children (50.4%) using pediatric risk, injury, failure, loss, and end-stage renal disease criteria, and the remaining 117 children were classified as non-AKI. The majority of children (63%) were in the age group of 5–12 years, and the male-to-female ratio was 1.2:1. From this study, it was recorded that the pathogenesis of AKI could be attributed to acute glomerulonephritis (AGN) (85%), sepsis (74%), and others like snake bite, diarrhea, poisoning cases, scorpion sting, diabetic ketoacidosis, heart failure, and unclassified causes with observable numbers. The most common offender is shock (91.4%) with vasopressor support (85.4%). Out of 82 children on inotropic support, 46 were on adrenaline. It was observed that the majority of children (93.5%) developed AKI during the course in hospital. The mortality rates were 64.7% and 24.5% among AKI and non-AKI patients. The mean duration of hospital stays among children without AKI was 5 days. Conclusion: The presence of AKI is associated with longer PICU and hospital stay, with higher mortality imposing a significant burden to health-care system.

Incidence, risk factors and outcomes of Acute Kidney Injury in Chronic Obstructive Pulmonary Disease patients with Acute exacerbation

Background: There is little data on the incidence, risk factors and outcomes of the AKI among COPD patients who are admitted to critical care units with exacerbation of symptoms. This observational study was conducted to evaluate the incidence and outcome of AKI with AECOPD.
 Method: We performed an observational study of patients who were admitted in the intensive care unit from August 2021 to February 2023 for acute exacerbation of COPD.
 Results: During the study period, a total of 108 patients were admitted to the ICU with acute respiratory failure attributed to COPD exacerbation. AKI occurred in 49 patients (45.4%). Independent risk factors for AKI in patients with AECOPD were advanced age, coronary artery disease, anemia, acute respiratory failure, and mechanical ventilation. Patients with AKI had worse prognostic implications and were more likely to require mechanical ventilation (42.8% vs 22.03%, P<0.05), had a longer ICU stay (6 ±1.3 days vs 5.41±1.1 days, P<0.05) and longer hospitalization (7.65±1.42 days vs 6.9±1.2 days, P<0.05); and higher in-hospital mortality (28.5 % vs 11.8 %, P<0.05) than those without AKI. Compared to patients without AKI who had in-hospital mortality rate of 11.8%, those with stage 2, or 3 AKI had rates of 41.6% and 85.7% respectively, that is 2.1- fold and 6.0-fold increased risk of in-hospital death, respectively.
 Conclusion: Incidence of AKI is relatively high in patient with AECOPD requiring intensive care. Patient with AKI had poor outcomes compared to non-AKI patient with AECOPD. AKI can be a prognostic factor for determining patient survival.

Incidence, Risk Factors, and Outcomes of Acute Kidney Injury in Preterm Neonates Hospitalized in the Neonatology Unit, North India: A Single-center Experience.

Acute kidney injury (AKI) is common in premature newborns and is associated with high mortality. It is unclear which risk factors lead to AKI in these neonates. We aimed to determine the incidence, risk factors, and outcomes of AKI in preterm neonates in the neonatal intensive care unit (NICU). They were screened and staged for AKI as per the amended neonatal criteria of Kidney Disease Improving Global Outcomes and followed up until discharge or death. Serum creatinine levels and urine output were measured. The incidence of AKI was 18.5% (37/200 neonates). The majority developed non-oliguric AKI. The risk factors significantly associated with AKI in neonates were the presence of sepsis, birth asphyxia, shock, respiratory distress syndrome, and hypothermia. The majority of neonates with AKI had a birthweight <1500 g and a gestational age of <32 weeks and had a higher risk of mortality, in contrast to than those without AKI. Mortality and NICU stay were significantly higher among those with Stage 3 AKI compared with Stage 2 and Stage 1 AKI. To prevent AKI and reduce the burden of high mortality in premature neonates, it is essential to prevent sepsis, birth asphyxia, and respiratory distress syndrome, as well as to detect shock and patent ductus arteriosus as early as possible. There is a need for good antenatal care to reduce the burden of prematurity.

Association between total bilirubin/Albumin ratio and all-cause mortality in acute kidney injury patients: A retrospective cohort study.

The association between the total bilirubin/albumin (B/A) and the all-cause mortality of critically ill patients with acute kidney injury (AKI) remains unclear. This retrospective study aimed to investigate the relationship between B/A ratio and mortality in patients with AKI. The clinical data of AKI patients in the Medical Information Mart for Intensive Care III (MIMIC-III) database were retrospectively analyzed. Patients were divided into the low and high B/A groups (B/A ≤ 0.25 and B/A > 0.25, respectively). The primary outcome was 28-day all-cause mortality, and the secondary outcomes were 60-day, 1-year and 4-year all-cause mortality. Kaplan-Meier survival curves and Cox proportional risk models were constructed to evaluate the effect of B/A on survival outcomes. The 28-day mortality rates were 18.00% and 25.10% in the low and high B/A groups, respectively (P < 0.001). The Kaplan-Meier analysis showed that patients with higher B/A values had higher all-cause mortality risk (log-rank P < 0.0001). The multivariate Cox proportional risk analysis showed that B/A was an independent risk predictor for death at 28 days, 60 days, 1 year, and 4 years. B/A is an independent risk factor for increased mortality in patients with AKI and may be used as a predictor of clinical outcomes in AKI.

Predictors and outcomes of acute kidney injury after bariatric surgery: analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program data registry.

Acute kidney injury (AKI) after surgery increases long-term risk of kidney dysfunction. The major risk factor for AKI after bariatric surgery is having preoperative renal insufficiency. Little is known about the outcomes and risk factors for developing AKI in patients undergoing bariatric surgery with normal renal function. We aimed to describe factors that may increase risk of AKI after primary bariatric surgery in patients without history of kidney disease. Academic hospital, United States. We performed a retrospective analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program data registry for patients aged ≥18 years undergoing laparoscopic sleeve gastrectomy and laparoscopic Roux-en-Y gastric bypass (LRYGB) from 2015 to 2019. Patients with diagnosis of chronic kidney disease were excluded. The primary outcome was incidence of AKI. Secondary outcomes included 30-day complications, readmissions, reoperations, and mortality. Univariate and multivariate analyses were performed to identify differences between patients with and without AKI. A total of 747,926 patients were included in our analysis (laparoscopic sleeve gastrectomy = 73.1%, LRYGB = 26.8%). Mean age was 44.40 ± 11.94 years, with female predominance (79.7%). AKI occurred in 446 patients (.05%). Patients with postoperative AKI had higher rates of complications, readmissions, reoperations, and mortality. Significant predictors of AKI were male sex, history of venous thromboembolism, hypertension, limitation for ambulation, and LRYGB. High albumin levels and White race were protective factors. New-onset AKI was associated with adverse 30-day outcomes in patients undergoing bariatric surgery. Male sex, venous thromboembolism, hypertension, limited ambulation, and LRYGB were independent predictors of AKI. Prospective studies are needed to better describe these results.

Abstract 022: Acute Kidney Injury in Subarachnoid Hemorrhage: Exploring its Clinical Significance and Prognostic Implications

Introduction Subarachnoid Hemorrhage (SAH) resulting from the spontaneous rupture of an aneurysm is a rare and highly debilitating condition. Despite its severity, patients with aneurysmal SAH remain understudied, particularly concerning the evaluation of the incidence and consequences of subsequent acute kidney injury (AKI). Thus, the objective of this study was to explore the predictors and ramifications of AKI in patients with aneurysmal SAH. Further research and attention to this area are crucial for improving patient outcomes and guiding clinical interventions in this challenging condition. Methods ICD‐10‐CM codes were used to query the National Inpatient Sample (NIS) for patients with AIS between 2010 and 2019. Subgroup analysis was stratified by the presence of a definitive AKI diagnosis. The AKI and non‐AKI groups were assessed for baseline clinical characteristics, interventions, complications, and outcomes. Descriptive statistics, multivariate regressions, and propensity score‐matching were all performed using IBM SPSS 28. Results 76,553 patients within the NIS were diagnosed with nontraumatic SAH between 2010 and 2019, of which 10,634 (13.89%) had a comorbid diagnosis of AKI. Patients with AKI were on average older (63.29 vs 61.07, p &lt; 0.01), more often obese (12.15% vs 9.32%, p &lt; 0.01), of the white race (55.82% vs 51%, p &lt; 0.01), and considered long‐term users of anticoagulants (8.12% vs 5.34%, p &lt; 0.01) when compared to the non‐AKI group. In terms of complications, patients within the AKI cohort had lower rates of decompressive hemicraniectomy (1.37% vs. 2.38%, p = 0.52) and, interestingly, cerebral vasospasms (4.47% vs. 8.22%, p &lt; 0.01). However, AKI patients had higher rates of deep vein thrombosis (6.36% vs. 3.54%, p &lt; 0.01), pulmonary embolism (4.22% vs. 1.42%, p &lt; 0.01), pneumonia (21.39% vs. 8.84%, p &lt; 0.01), urinary tract infection (19.07% vs. 13.32%, p &lt; 0.01), sepsis (20.27% vs. 4.18%, p &lt; 0.01), acute myocardial infarction (12.14% vs. 3.21%, p &lt; 0.01), and cardiac arrest (10.25% vs. 3.23%, p &lt; 0.01). In a multivariate regression assessing the impact of AKI on SAH outcome, this diagnosis was found to be independently correlated with poor functional outcome (OR: 3.306, CI: 3.11 – 3.513, p &lt; 0.001) above average LOS (OR: 1.503, CI: 1.438 ‐ 1.571, p &lt;0.001), and in‐hospital mortality (OR: 2.434, CI: 2.323 ‐ 2.55, p &lt;0.001), when controlling for admission age, SAH severity, and other significant comorbidities. Conclusion The findings of this national database evaluation reveal a significant association between AKI and adverse outcomes in patients with aneurysmal SAH. Specifically, the study highlights a strong correlation between AKI and heightened complication rates, poor functional outcome, extended hospital stays, and elevated mortality rates. These results emphasize the importance of early detection and proactive management of AKI in SAH patients to improve their overall prognosis and enhance their chances of recovery.

Malaria is the leading cause of acute kidney injury among a Zambian paediatric renal service cohort retrospectively evaluated for aetiologies, predictors of the need for dialysis, and outcomes.

Whilst malaria is a prominent aetiology associated with acute kidney injury (AKI) in many parts of Africa, a shift in the traditional AKI aetiologies has been witnessed in sections of the continent. Additionally, limited access to dialysis worsens patient outcomes in these low-resource settings. This retrospective cross-sectional study aimed to determine the associated aetiologies, predictors of need for dialysis and malaria-associated AKI (MAKI), and outcomes of AKI and dialysis among children evaluated by the renal service in Lusaka, Zambia. The study sampled all children aged 16 years or below, diagnosed with AKI between 2017 and 2021, by the renal unit at the University Teaching Hospitals- Children's Hospital (UTH-CH), and retrospectively abstracted their records for exposures and outcomes. AKI was defined using the Kidney Disease Improving Global Outcomes (KDIGO) 2012 criteria. Frequency and percentage distributions were used to describe the occurrence of AKI aetiologies and treatment outcomes. Predictors of the need for dialysis, MAKI, and poor treatment outcome were identified by using multivariable logistic regression models. A total of 126 children diagnosed with AKI were included in this study. Malaria was the most frequent aetiology of AKI(61.1% (77/126, 95% Confidence Interval (CI): 52.0%-69.7%)). Of the 126 children with AKI, 74.6% (94) underwent dialysis. Predictors of the need for dialysis were oliguria (p = 0.0024; Odds ratio (OR) = 7.5, 95% CI: 2.1-27.7) and anuria (p = 0.0211; OR = 6.4, 95% CI = 1.3, 30.7). A fifth (18.3%, 23/126) of the children developed chronic kidney disease (CKD), 5.6% (7/126) died and, a year later, 77% (97/126) were lost to follow-up. At UTH-CH, malaria is the most frequent aetiology among children with AKI undergoing dialysis and children from low-medium malaria incidence areas are at risk; a considerable proportion of children with AKI need dialysis and Tenchoff catheter use in AKI is advocated.

Epidemiology of acute kidney injury in children: a report from the 26th Acute Disease Quality Initiative (ADQI) consensus conference

The nephrology and critical care communities have seen an increase in studies exploring acute kidney injury (AKI) epidemiology in children. As a result, we now know that AKI is highly prevalent in critically ill neonates, children, and young adults. Furthermore, children who develop AKI experience greater morbidity and higher mortality. Yet knowledge gaps still exist that suggest a more comprehensive understanding of AKI will form the foundation for future efforts designed to improve outcomes. In particular, the areas of community acquired AKI, AKI in non-critically ill children, and cohorts from low-middle income countries have not been well studied. Longer-term functional outcomes and patient-centric metrics including social determinants of health, quality of life, and healthcare utilization should be the foci of the next phase of scholarship. Current definitions identify AKI-based upon evidence of dysfunction which serves as a proxy for injury; biomarkers capable of identifying injury as it occurs are likely to more accurately define populations with AKI. Despite the strength of the association, the causal and mechanistic relationships between AKI and poorer outcomes remain inadequately examined. A more robust understanding of the relationship represents a potential to identify therapeutic targets. Once established, a more comprehensive understanding of AKI epidemiology in children will allow investigation of preventive, therapeutic, and quality improvement interventions more effectively.

Prevalence and outcome of acute kidney injury in burn victims at a tertiary centre in Cape Town, South Africa.

Burn victims commonly experience acute kidney injury (AKI), which can lead to significant morbidity and mortality. To investigate the prevalence of AKI in burn patients, the causes of AKI and the rate of in-hospital mortality. A retrospective cohort study was conducted on patients admitted to the Tygerberg Hospital Burn Unit between 1 April 2018, and 31 March 2019. The study included all burn patients >18 years old, except for those with end-stage kidney disease or cold burn wounds, skin donors or readmissions. AKI was defined using the Kidney Disease Improving Global Outcomes criteria, and multivariable logistic regression was used to identify predictors of AKI and death, along with Kaplan-Meier survival analysis. The prevalence of AKI was 27% (58/215). The most common causes of burns were open fires (37%) and shack fires (17%). Patients with AKI had higher scores on the abbreviated burn severity index (ABSI) (7 v. 5, p<0.01), required more mechanical ventilation (69% v. 33%, p<0.01) and experienced more sepsis (35% v. 12%, p<0.01). Predictors of AKI included ABSI score (adjusted odds ratio (aOR) 1.48, 95% confidence interval (CI) 1.21 - 1.80, p<0.01), mechanical ventilation (aOR 7.75, 95% CI 1.23 - 48.65, p=0.03) and high admission lactate (aOR 1.57, 95% CI 1.04 - 2.39, p=0.03). Mortality was higher in patients with AKI (34% v. 6%, p<0.01). ABSI score (aOR 2.16, 95% CI 1.56 - 2.99, p<0.01) and vasopressor use (aOR 7.71, 95% CI 2.15 - 27.60, p<0.01) were identified as predictors of death. The survival analysis revealed that AKI was associated with higher mortality (log rank, p<0.01). The study highlights the high prevalence of AKI among burn victims requiring tertiary care and its association with high mortality rates. Improving living conditions in informal settlements could help prevent burns and their complications.

Biopsy-proven acute tubulointerstitial nephritis in patients treated with immune checkpoint inhibitors: a pooled analysis of case reports.

Acute kidney injury (AKI) in cancer patients receiving immune checkpoint inhibitors (ICIs) may recognize multiple causes. Here, we reviewed cases of biopsy-proven acute tubulointerstitial nephritis (ATIN) to describe the clinical characteristics and outcomes of this condition. We conducted a pooled analysis of clinical cases of ICI-related biopsy-proven ATIN up to 1 May 2022. We collected data on clinical characteristics, AKI, biopsy findings, laboratory examinations, and renal outcomes. Eighty-five patients (61.4 ± 19 years, 56 male) were evaluated. Melanoma was the most prevalent diagnosis (51%), followed by non-small cell lung cancer (30%). ICI treatment consisted of PD-1, PDL-1 (nivolumab, pembrolizumab, atezolizumab), and CTLA-4 inhibitors (i) (ipilimumab) or combination PD-1i+CTLA4i. Renal toxicity developed after a median of four cycles of therapy. Fifty-one patients (65.5%) developed the most severe form of AKI- stage 3, including five patients requiring dialysis. All the 19 patients treated with dual ICI blockade developed AKI-stage 3, compared with 29 patients out of the 60 receiving a single agent (p<0.001). Most events were managed with corticosteroids associated with ICI withdrawal. In 15 patients ICI was restarted, but in six (40%) AKI recurred. Overall, 32 patients (40%) presented a complete renal recovery, which chance was inversely associated with dual ICI blockade (OR 0.15, 95CI 0.03-0.7, p=0.01). ICI-related ATIN may develop late after the therapy initiation, presenting as severe AKI, particularly in patients with dual ICI blockade. Although this complication may be partially reversible, concerns remain about the renal function sequelae and the possibility of restarting ICI treatment.

An update on the role of fluid overload in the prediction of outcome in acute kidney injury.

Over the past two decades, our understanding of the impact of acute kidney injury, disorders of fluid balance, and their interplay have increased significantly. In recent years, the epidemiology and impact of fluid balance, including the pathologic state of fluid overload on outcomes has been studied extensively across multiple pediatric and neonatal populations. A detailed understating of fluid balance has become increasingly important as it is recognized as a target for intervention to continue to work to improve outcomes in these populations. In this review, we provide an update on the epidemiology and outcomes associated with fluid balance disorders and the development of fluid overload in children with acute kidney injury (AKI). This will include a detailed review of consensus definitions of fluid balance, fluid overload, and the methodologies to define them, impact of fluid balance on the diagnosis of AKI and the concept of fluid corrected serum creatinine. This review will also provide detailed descriptions of future directions and the changing paradigms around fluid balance and AKI in critical care nephrology, including the incorporation of the sequential utilization of risk stratification, novel biomarkers, and functional kidney tests (furosemide stress test) into research and ultimately clinical care. Finally, the review will conclude with novel methods currently under study to assess fluid balance and distribution (point of care ultrasound and bioimpedance).

Incidence, risk factors and outcome of acute kidney injury in critically ill COVID-19 patients in Tyrol, Austria: a prospective multicenter registry study

IntroductionAcute kidney injury is a frequent complication in critically ill patients with and without COVID-19. The aim of this study was to evaluate the incidence of, and risk factors for, acute kidney injury and its effect on clinical outcomes of critically ill COVID-19 patients in Tyrol, Austria.MethodsThis multicenter prospective registry study included adult patients with a SARS-CoV-2 infection confirmed by polymerase chain reaction, who were treated in one of the 12 dedicated intensive care units during the COVID-19 pandemic from February 2020 until May 2022.ResultsIn total, 1042 patients were included during the study period. The median age of the overall cohort was 66 years. Of the included patients, 267 (26%) developed acute kidney injury during their intensive care unit stay. In total, 12.3% (n = 126) required renal replacement therapy with a median duration of 9 (IQR 3–18) days. In patients with acute kidney injury the rate of invasive mechanical ventilation was significantly higher with 85% (n = 227) compared to 41% (n = 312) in the no acute kidney injury group (p < 0.001). The most important risk factors for acute kidney injury were invasive mechanical ventilation (OR = 4.19, p < 0.001), vasopressor use (OR = 3.17, p < 0.001) and chronic kidney disease (OR = 2.30, p < 0.001) in a multivariable logistic regression analysis. Hospital and intensive care unit mortality were significantly higher in patients with acute kidney injury compared to patients without acute kidney injury (Hospital mortality: 52.1% vs. 17.2%, p < 0.001, ICU-mortality: 47.2% vs. 14.7%, p < 0.001).ConclusionAs in non-COVID-19 patients, acute kidney injury is clearly associated with increased mortality in critically ill COVID-19 patients. Among known risk factors, invasive mechanical ventilation has been identified as an independent and strong predictor of acute kidney injury.Graphical abstract

Factors associated with acute kidney injury in neonates admitted in a tertiary-care setting of a developing country: A cross-sectional study.

Objective: To assess the prevalence, risk factors and outcome of acute kidney injury (AKI) in neonates admitted in a neonatal intensive care unit (NICU) of developing country. Study Design: Cross-sectional study. Setting: Neonatal Intensive Care Unit at Sheikh Saeed Memorial Campus (SSMC) of Indus Hospital and Health Network (IHHN), Karachi, Pakistan. Period: April 2022 to September 2022. Material &amp; Methods: Four hundred and seventy-one newborns hospitalized to the NICU were analyzed. Demographic details along with maternal and neonatal history, vitals, and clinical signs of newborns were noted. All at-risk newborns had their urine output assessed. Serum creatinine levels were assessed to classify AKI into stages using modified KDIGO criteria. Results: Out of 471 participants, 256 (54.4%) neonates were male. The prevalence of AKI was noted in 42 (8.9%) neonates. Based on the modified KDIGO stages, 26 (61.9%), 7 (16.6%), 7 (16.6%), and 2 (4.7%) neonates met the requirements for AKI stages 0, 1, 2, and 3, respectively. In comparison to newborns with normal renal function, newborns with AKI had significantly higher serum creatinine levels (p&lt;0.001), lower urine output (p=&lt;0.001), and lower creatinine clearance rates (p=0.001). Multivariate analysis showed that sepsis enhanced the risk of acquiring AKI (OR: 60.50, 95% CI: 26.03-169.88). Neonates in distress, and on ventilator had a higher risk of having AKI (OR: 13.88, 95% CI: 1.26-152.91) and (OR: 20.77, 95% CI: 1.1-390.49) respectively. Conclusion: The prevalence of AKI among neonates admitted in NICU was 8.9%. Fetal distress, sepsis and mechanical ventilation were significantly associated with AKI.

Advances in pediatric acute kidney injury pathobiology: a report from the 26th Acute Disease Quality Initiative (ADQI) conference

BackgroundIn the past decade, there have been substantial advances in our understanding of the pathobiology of pediatric acute kidney injury (AKI). In particular, animal models and studies focused on the relationship between kidney development, nephron number, and kidney health have identified a number of heterogeneous pathophysiologies underlying AKI. Despite this progress, gaps remain in our understanding of the pathobiology of pediatric AKI.MethodsDuring the 26th Acute Disease Quality Initiative (ADQI) Consensus conference, a multidisciplinary group of experts discussed the evidence and used a modified Delphi process to achieve consensus on recommendations for opportunities to advance translational research in pediatric AKI. The current state of research understanding as well as gaps and opportunities for advancement in research was discussed, and recommendations were summarized.ResultsConsensus was reached that to improve translational pediatric AKI advancements, diverse teams spanning pre-clinical to epidemiological scientists must work in concert together and that results must be shared with the community we serve with patient involvement. Public and private research support and meaningful partnerships with adult research efforts are required. Particular focus is warranted to investigate the pediatric nuances of AKI, including the effect of development as a biological variable on AKI incidence, severity, and outcomes.ConclusionsAlthough AKI is common and associated with significant morbidity, the biologic basis of the disease spectrum throughout varying nephron developmental stages remains poorly understood. An incomplete understanding of factors contributing to kidney health, the diverse pathobiologies underlying AKI in children, and the historically siloed approach to research limit advances in the field. The recommendations outlined herein identify gaps and outline a strategic approach to advance the field of pediatric AKI via multidisciplinary translational research.

S263 Outcomes of Acute Kidney Injury in Colorectal Cancer Patients With COVID-19

S263 Outcomes of Acute Kidney Injury in Colorectal Cancer Patients With COVID-19

Outcomes of Acute Kidney Injury in Critically Ill Patients in Luxor International Hospital

Outcomes of Acute Kidney Injury in Critically Ill Patients in Luxor International Hospital

Kinetic Estimated Glomerular Filtration Rate in Predicting Paediatric Acute Kidney Disease.

Kinetic estimation of glomerular filtration rate (KeGFR) has proved its utility in predicting acute kidney injury (AKI) in both adults and children. Our objective is to assess the clinical utility of KeGFR in predicting AKI severity and progression to acute kidney disease (AKD) in patients already diagnosed with AKI and to examine major adverse kidney events at 30 days (MAKE30). We retrospectively calculated the KeGFR within the first 24 h of identified AKI (KeGFR1) and in the 24 h prior to AKD (KeGFR2) in all admitted children under 18 years old. The cohort consisted of 803 patients with AKI. We proposed a new classification of KeGFR stages, from 1 to 5, and assessed the predictive value of KeGFR stages for AKD development and MAKE30. AKI severity was associated with lower KeGFRs. KeGFR1 and KeGFR2 predicted AKD with AUC values between 0.777 and 0.841 respectively, p < 0.001. KeGFR2 had the best performance in predicting MAKE30 (AUC of 0.819) with a sensitivity of 66.67% and specificity 87.7%. KeGFR1 stage 3, 4 and 5 increased the risk of AKD by 3.07, 6.56 and 28.07 times, respectively, while KeGFR2 stage 2, 3, 4 and 5 increased the risk of AKD 2.79, 3.58, 32.75 and 80.14 times. Stage 5 KeGFR1 and KeGFR2 stages 3, 4 and 5 increased the risk of MAKE30 by 7.77, 4.23. 5.89 and 69.42 times in the adjusted models. KeGFR proved to be a useful tool in AKI settings. KeGFR dynamics can predict AKI severity, duration and outcomes.

Epidemiology and outcome of acute kidney injury in hospitalized children: experience from a tertiary care hospital in Eastern India

Background: The aim of the study was to assess the etiology, clinical profile and short-term outcome of acute kidney injury in hospitalized children. Methods: A single centre prospective observational study conducted at a tertiary care hospital in eastern India. Consecutive hospitalized children aged between one month to twelve years who developed AKI according to AKIN criteria were included in the study. Relevant clinical and laboratory parameters as guide by clinical condition along with outcome of patients were recorded at the time of discharge and at one month and three months after discharge. Results: 116 hospitalized children who developed AKI were included in the study; 63 (54.3%) participants are above 5 years of age with male to female ratio of the study population was 1.07:1. Infections (46.5%), acute glomerulonephritis (19.8%), snake bite (11.2%) and post-surgery (8.6%) were the common causes of AKI. 43.1% of them had AKIN stage 3. 66.4% had oliguria, 33.6% had shock. 72.4% required admission at Pediatric Intensive Care Unit support, 32.4% required ionotrop support, 44.8% required mechaicanical ventilator support. Around 65% requrired dialysis support; of which 75% recieved hemodialysis and 25% requied peritoneal hemodialysis. Mortality rate was 44%. At discharge, 41.6% (n=27) of the patients had complete renal recovery from AKI. Percentage of partial renal recovery at the time of discharge, 1 month and 3 months after discharge were respectively 53.8%; 47.7% and 10%. 3 patients at the time of discharge and 2 patients after 3 months required persistent dialysis support. Number of factors are associated with poor outcome especially higher acute kidney injury state, critically ill patients and low serum albumin at admission. Conclusions: Infection is the leading cause of acute kidney injury in hospitalized children in this part of world. Mortality in critically ill children with acute kidney injury is high. Various clinical parameters at presentation are associated with poor short term renal outcome.

Different Roles of Functional and Structural Renal Markers Measured at Discontinuation of Renal Replacement Therapy for Acute Kidney Injury

Plain Language SummaryPatients with severe AKI require RRT. When we should stop RRT and what parameter predicts worse clinical outcome in long-term have still not been clear. In this prospective study, we confirmed that urine volume was the best predictor to determine when to stop RRT. Further, we found that urinary marker NGAL was predictive for worse clinical outcomes within 3 months after RRT.

Incidence, associated factors, and outcomes of acute kidney injury following placement of antibiotic bone cement spacers in two-stage exchange for periprosthetic joint infection: a comprehensive study.

Two-stage exchange with placement of antibiotic cement spacer (ACS) is the gold standard for the treatment of chronic periprosthetic joint infection (PJI), but it could cause a high prevalence of acute kidney injury (AKI). However, the results of the current evidence on this topic are too mixed to effectively guide clinical practice. We retrospectively identified 340 chronic PJI patients who underwent the first-stage exchange with placement of ACS. The Kidney Disease Improving Global Outcomes guideline was used to define postoperative AKI. Multivariate logistic analysis was performed to determine the potential factors associated with AKI. Furthermore, a systematic review and meta-analysis on this topic were conducted to summarize the knowledge in the current literature further. In our cohort, the incidence of AKI following first-stage exchange was 12.1%. Older age (per 10 years, OR= 1.509) and preoperative hypoalbuminemia (OR= 3.593) were independent predictors for postoperative AKI. Eight AKI patients progressed to chronic kidney disease after 90 days. A meta-analysis including a total of 2525 PJI patients showed the incidence of AKI was 16.6%, and AKI requiring acute dialysis was 1.4%. Besides, host characteristics, poor baseline liver function, factors contributing to acute renal blood flow injury, and the use of nephrotoxic drugs may be associated with the development of AKI. However, only a few studies supported an association between antibiotic dose and AKI. AKI occurs in approximately one out of every six PJI patients undergoing first-stage exchange. The pathogenesis of AKI is multifactorial, with hypoalbuminemia could be an overlooked associated factor. Although the need for acute dialysis is uncommon, the fact that some AKI patients will develop CKD still needs to be taken into consideration.