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Related Concept Videos

Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

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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...
48
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...
53
Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

53
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...
53
Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

56
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...
56
Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

40
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...
40
Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

31
Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such...
31

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Acute Kidney Injury: Medical Causes and Pathogenesis.

Faruk Turgut1, Alaa S Awad2, Emaad M Abdel-Rahman3

  • 1Faculty of Medicine, Mustafa Kemal University, Antakya 31100, Hatay, Turkey.

Journal of Clinical Medicine
|January 8, 2023
PubMed
Summary

Acute kidney injury (AKI) is a sudden loss of kidney function, increasing chronic kidney disease risk. Understanding AKI

Keywords:
acute glomerulonephritisacute interstitial nephritisacute kidney injuryacute tubular necrosispostrenal AKIprerenal AKI

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Area of Science:

  • Nephrology
  • Internal Medicine

Background:

  • Acute kidney injury (AKI) is a prevalent clinical syndrome marked by a rapid decrease in kidney function.
  • AKI is linked to significant morbidity, mortality, and an elevated risk of developing chronic kidney disease (CKD).
  • Current AKI classification relies on serum creatinine and urine output, with etiologies categorized as prerenal, intrarenal, and postrenal.

Purpose of the Study:

  • To review the diverse medical causes of AKI.
  • To summarize recent advancements in understanding AKI pathogenesis.
  • To emphasize the importance of timely AKI identification and understanding its mechanisms.

Main Methods:

  • Literature review of medical causes of AKI.
  • Synthesis of recent research on AKI pathophysiology.
  • Analysis of diagnostic criteria and etiological classifications.

Main Results:

  • AKI is often multifactorial, with acute tubular necrosis (due to ischemia or nephrotoxicity) being a common feature.
  • While traditional classification is useful, a deeper understanding of multifactorial pathophysiologic features is crucial.
  • Recent updates highlight complex mechanisms underlying kidney dysfunction in AKI.

Conclusions:

  • Accurate and timely diagnosis of AKI is essential for patient outcomes.
  • A comprehensive understanding of AKI's multifactorial pathogenesis is critical for effective management.
  • Further research into the pathophysiological mechanisms of AKI is needed to improve patient care and reduce CKD progression.