Publications by authors named "Katja M Gist"

Background: Continuous renal replacement therapy (CRRT) is the favored renal replacement therapy in critically ill patients. Predicting clinical outcomes for CRRT patients is difficult due to population heterogeneity, varying clinical practices, and limited sample sizes.

Objective: We aimed to predict survival to ICUs and hospital discharge in children and young adults receiving CRRT using machine learning (ML) techniques.

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  • This study examines the link between early postoperative levels of CCL14, a specific chemokine, and persistent severe acute kidney injury (AKI) in children who have undergone cardiac surgery.
  • It was a retrospective analysis involving patients under 18 who had urine samples collected within the first day after surgery, focusing on those with and without persistent severe AKI, which was defined as lasting for 72 hours or more.
  • The results showed that while persistent severe AKI occurred in a small percentage of patients and was associated with more complex surgeries, CCL14 levels did not differ significantly between those with and without AKI, suggesting it may not be a useful predictive marker.
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Background: Outcomes for children with heart disease improved over the past decades. Quality improvement (QI) research in paediatric cardiac critical care is a key driver of improvement. The availability and variability of QI research across the field is unknown.

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  • - A 7-year-old boy with mild asthma developed severe cardiogenic shock and required ECMO, highlighting a rare case of autoimmune adrenal insufficiency.
  • - During his examination, the boy showed bronzing of his skin, prompting the administration of stress dose hydrocortisone for suspected adrenal issues.
  • - After recovery and rehabilitation, the case emphasizes the importance of considering primary adrenal insufficiency in diagnosing circulatory shock based on physical and lab findings.
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Background: Pediatric cardiac surgery-associated acute kidney injury (CS-AKI) is common with variable association with outcomes, possibly because transient serum creatinine (SCr) elevations are unrelated to kidney disease. Sub-phenotypes of CS-AKI with biomarker integration may provide prognostic enrichment. This study aims to determine if combining early postoperative urine neutrophil gelatinase-associated lipocalin (uNGAL) and SCr into sub-phenotypes strengthens associations with AKI and outcomes.

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ST segment monitoring in the adult population allows for the early detection of myocardial ischaemia. In children admitted to the paediatric intensive care unit (PICU), cardiac intensive care unit (CICU), and cardiac progressive care unit (CPCU), it is unclear if continuous ST segment alarm monitoring is necessary in all patients. All patients admitted to the PICU, CICU, and CPCU during the study period were included.

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  • The study investigates the impact of vasopressin versus other vasopressors (like norepinephrine and epinephrine) on kidney outcomes in children and young adults undergoing continuous renal replacement therapy (CRRT).
  • Data was analyzed from a multicenter cohort including 1,016 patients under 25 years in pediatric intensive care units (PICUs) over nearly seven years.
  • Results show that vasopressin use is linked to higher risks of major adverse kidney events (MAKE-90), especially when started later in the CRRT process, indicating potential negative effects on kidney health.
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Importance: Kidney disease is common in infants admitted to the neonatal intensive care unit (NICU). Despite the risk of chronic kidney disease (CKD) in infants discharged from the NICU, neither evidence- nor expert-based recommendations exist to guide clinical care after discharge.

Objective: To develop recommendations for risk stratification and kidney health monitoring among infants after discharge from the NICU.

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Objectives: Pediatric sepsis-associated acute kidney injury (AKI) often requires continuous renal replacement therapy (CRRT), but limited data exist regarding patient characteristics and outcomes. We aimed to describe these features, including the impact of possible dialytrauma (i.e.

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Background: Continuous kidney replacement therapy (CKRT) is often used for acute kidney injury (AKI) or fluid overload (FO) in children ≤ 10 kg. Intensive care unit (ICU) mortality in children ≤ 10 kg reported by the prospective pediatric CRRT (ppCRRT, 2001-2003) registry was 57%. We aimed to evaluate characteristics associated with ICU mortality using a contemporary registry.

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Background: Cardiac surgery associated acute kidney injury (CS-AKI) is common. Urine response to loop diuretic and urine neutrophil gelatinase associated lipocalin (uNGAL) are separately associated with CS-AKI. We aimed to determine whether urine response to loop diuretic and uNGAL together were associated with postoperative day 2-4 CS-AKI.

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Background: Elevated renin has been shown to predict poor response to standard vasoactive therapies and is associated with poor outcomes in adults. Similarly, elevated renin was associated with mortality in children with septic shock. Renin concentration profiles after pediatric cardiac surgery are unknown.

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Introduction: Acute kidney injury is associated with worse outcomes after cardiac surgery. The haemodynamic goals to ameliorate kidney injury are not clear. Low post-operative renal perfusion pressure has been associated with acute kidney injury in adults.

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Background: Multicenter early diuretic response (DR) analysis of single furosemide dosing following neonatal cardiac surgery is lacking to inform whether early DR predicts adverse clinical outcomes.

Methods: We performed a retrospective cohort study utilizing data from the NEPHRON registry. Random forest machine learning generated receiver operating characteristic-area under the curve (ROC-AUC) and odds ratios for mechanical ventilation (MV) and respiratory support (RS).

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Objectives: Acute kidney injury requiring dialysis (AKI-D) commonly occurs in the setting of multiple organ dysfunction syndrome (MODS). Continuous renal replacement therapy (CRRT) is the modality of choice for AKI-D. Mid-term outcomes of pediatric AKI-D supported with CRRT are unknown.

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Purpose: Continuous renal replacement therapy (CRRT) is used for supportive management of acute kidney injury (AKI) and disorders of fluid balance (FB). Little is known about the predictors of successful liberation in children and young adults. We aimed to identify the factors associated with successful CRRT liberation.

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Importance: Continuous kidney replacement therapy (CKRT) is increasingly used in youths with critical illness, but little is known about longer-term outcomes, such as persistent kidney dysfunction, continued need for dialysis, or death.

Objective: To characterize the incidence and risk factors, including liberation patterns, associated with major adverse kidney events 90 days after CKRT initiation (MAKE-90) in children, adolescents, and young adults.

Design, Setting, And Participants: This international, multicenter cohort study was conducted among patients aged 0 to 25 years from The Worldwide Exploration of Renal Replacement Outcomes Collaborative in Kidney Disease (WE-ROCK) registry treated with CKRT for acute kidney injury or fluid overload from 2015 to 2021.

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Rationale & Objective: There are limited studies describing the epidemiology and outcomes in children and young adults receiving continuous kidney replacement therapy (CKRT). We aimed to describe associations between patient characteristics, CKRT prescription, and survival.

Study Design: Retrospective multicenter cohort study.

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Article Synopsis
  • The study investigates the impact of the timing of continuous renal replacement therapy (CRRT) initiation on major adverse kidney events at 90 days in children and young adults with acute kidney injury or volume overload, as previous findings in adults showed no survival benefit from early initiation.* -
  • Conducted through the WE-ROCK registry, the research analyzed data from 969 patients aged 0 to 25 across 32 centers in 7 countries, focusing on the relationship between the timing of CRRT start and outcomes like death, dialysis dependence, and persistent kidney dysfunction.* -
  • Results showed that among 630 patients experiencing major adverse kidney events, 65% faced complications, with 58.4% of those ultimately dying, indicating
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The nutritional management of neonates with kidney disease is complex. There may be significant differences in nutritional needs based on the duration and cause of kidney dysfunction, including acute kidney injury (AKI) and chronic kidney disease (CKD). Furthermore, the treatment modality, including acute (continuous renal replacement therapy and peritoneal dialysis [PD]) and chronic (intermittent hemodialysis and PD) approaches may differentially affect nutritional losses and dietary needs.

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Background: Cardiac surgery-associated acute kidney injury (CS-AKI) is common, but its impact on clinical outcomes is variable. Parsing AKI into sub-phenotype(s) and integrating pathologic positive cumulative fluid balance (CFB) may better inform prognosis. We sought to determine whether durational sub-phenotyping of CS-AKI with CFB strengthens association with outcomes among neonates undergoing the Norwood procedure.

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Background: Acute kidney injury (AKI) is independently associated with increased morbidity and mortality across the life course, yet care for AKI remains mostly supportive. Raising awareness of this life-threatening clinical syndrome through education and advocacy efforts is the key to improving patient outcomes. Here, we describe the unique roles education and advocacy play in the care of children with AKI, discuss the importance of customizing educational outreach efforts to individual groups and contexts, and highlight the opportunities created through innovations and partnerships to optimize lifelong health outcomes.

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