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Related Concept Videos

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 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...
70
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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Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

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Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
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Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

86
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 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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Related Experiment Video

Updated: Sep 8, 2025

Bilateral Renal Ischemia-Reperfusion Model for Acute Kidney Injury in Mice
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High Environmental Heat Exposure Is a Risk Factor for Acute Kidney Injury and Chronic Kidney Disease.

Hung Nguyen1, Bryan K Becker1, Subhashini Bolisetty1

  • 1University of Alabama at Birmingham, Department of Medicine, Division of Nephrology, Section of Cardio-Renal Physiology and Medicine, Birmingham, AL.

Seminars in Nephrology
|September 6, 2025
PubMed
Summary

Heat stress significantly contributes to chronic kidney disease, particularly in Mesoamerica. Further research is crucial to understand heat-induced kidney injury mechanisms and develop prevention strategies for vulnerable populations.

Keywords:
CKDuHeat stressacute kidney injurychronic kidney diseasethermoregulation

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Area of Science:

  • Nephrology
  • Environmental Health
  • Toxicology

Background:

  • Chronic kidney disease of unknown etiology (CKDu) is prevalent in Mesoamerican agricultural regions.
  • Growing evidence implicates heat stress as a significant contributing factor to CKDu.
  • Acute kidney injury (AKI) incidence correlates with heat exposure in human and animal models.

Purpose of the Study:

  • To explore the multifactorial mechanisms underlying heat-induced kidney injury.
  • To highlight the urgent need for understanding heat stress pathways in renal damage.
  • To inform prevention strategies for occupational and general populations exposed to extreme heat.

Main Methods:

  • Review of existing human and animal studies on heat exposure and kidney injury.
  • Analysis of potential contributing factors: hemodynamic changes, immune responses, and coagulopathies.
  • Identification of knowledge gaps in the precise pathways of heat nephrotoxicity.

Main Results:

  • Heat stress is a key factor in CKDu.
  • Heat exposure is linked to increased AKI incidence.
  • Mechanisms involve complex physiological responses, but specific pathways require further elucidation.

Conclusions:

  • Heat-induced kidney injury is a multifactorial process.
  • Understanding these mechanisms is critical for preventing renal damage.
  • Vulnerable groups, including agricultural workers and the general population facing climate change, require targeted interventions.