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Related Concept Videos

Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

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Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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Acute Kidney Injury II: Pathophysiology01:29

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Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
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Acute Kidney Injury I: Introduction01:22

Acute Kidney Injury I: Introduction

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Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
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Acute Kidney Injury III: Clinical Manifestations01:29

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Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
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Acute Kidney Injury V: Interprofessional Care01:20

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Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
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Acute Kidney Injury VI: Nursing Management01:22

Acute Kidney Injury VI: Nursing Management

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Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...
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Technical Refinement of a Bilateral Renal Ischemia-Reperfusion Mouse Model for Acute Kidney Injury Research
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Probing the Association between Acute Kidney Injury and Cardiovascular Outcomes.

Ian E McCoy1, Jesse Y Hsu2, Xiaoming Zhang2

  • 1Division of Nephrology, University of California San Francisco, San Francisco, California.

Clinical Journal of the American Society of Nephrology : CJASN
|April 28, 2023
PubMed
Summary
This summary is machine-generated.

Patients hospitalized with acute kidney injury (AKI) face higher risks of heart failure and cardiovascular events. However, AKI remains an independent risk factor even after accounting for pre-existing kidney function and proteinuria.

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Area of Science:

  • Nephrology
  • Cardiology
  • Internal Medicine

Background:

  • Patients hospitalized with acute kidney injury (AKI) exhibit increased risks of heart failure, atherosclerotic cardiovascular events, and mortality.
  • These elevated risks may be influenced by pre-existing patient characteristics rather than AKI itself.

Purpose of the Study:

  • To investigate the independent association between hospitalized AKI and subsequent risks of heart failure, atherosclerotic cardiovascular events, and mortality.
  • To determine if prehospitalization factors confound the relationship between AKI and adverse cardiovascular outcomes.

Main Methods:

  • Analysis of 2177 adult participants from the Chronic Renal Insufficiency Cohort study hospitalized between 2013-2019.
  • Comparison of outcomes between patients with and without serum creatinine-based AKI, with sequential adjustment for prehospitalization characteristics (eGFR, eGFR slope, UPCR).

Main Results:

  • Patients with AKI had lower prehospitalization eGFR, faster eGFR decline, and higher proteinuria compared to those without AKI.
  • While prehospitalization factors attenuated the associations, AKI remained a significant independent risk factor for adverse cardiovascular outcomes.
  • The degree of risk attenuation was similar across adjustments for eGFR, eGFR slope, or proteinuria, individually or combined.

Conclusions:

  • Prehospitalization variables like eGFR, eGFR slope, and proteinuria are confounders in the association between AKI and adverse cardiovascular outcomes.
  • Despite confounding, AKI independently predicts increased risks of heart failure, atherosclerotic cardiovascular events, and mortality.