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Acute Kidney Injury I: Introduction

Acute Kidney Injury I: Introduction

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...

Acute Kidney Injury II: Pathophysiology

Acute Kidney Injury II: Pathophysiology

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...

Acute Kidney Injury IV: Diagnostic Studies and Prevention

Acute Kidney Injury IV: Diagnostic Studies and Prevention

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...

Acute Kidney Injury III: Clinical Manifestations

Acute Kidney Injury III: Clinical Manifestations

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...

Acute Kidney Injury V: Interprofessional Care

Acute Kidney Injury V: Interprofessional Care

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...

Acute Kidney Injury VI: Nursing Management

Acute Kidney Injury VI: Nursing Management

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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Updated: Jun 16, 2026

Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells

Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells

Published on: November 21, 2025

Radiation-associated kidney injury.

Laura A Dawson¹, Brian D Kavanagh, Arnold C Paulino

¹Department of Radiation Oncology, Princess Margaret Hospital, University of Toronto, Toronto, Ontario, Canada. laura.dawson@rmp.uhn.on.ca

International Journal of Radiation Oncology, Biology, Physics

|February 23, 2010

Summary

This summary is machine-generated.

Radiotherapy can cause kidney injury, often overlooked due to delayed symptoms. Understanding radiation nephropathy is crucial for developing better treatment guidelines and protective strategies.

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Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice

Published on: August 9, 2013

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Last Updated: Jun 16, 2026

Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells

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Published on: November 21, 2025

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice

Published on: August 9, 2013

Area of Science:

Nephrology
Radiation Oncology
Oncology

Background:

Kidneys are critical dose-limiting organs during radiotherapy for abdominal cancers and total body irradiation.
Radiotherapy-associated kidney injury (RAKI) incidence is likely underestimated due to long latency and misattribution of symptoms.
The underlying pathophysiology of radiation-induced kidney damage remains poorly understood.

Purpose of the Study:

To review dose and volume parameters associated with renal toxicity.
To provide evidence-based treatment guidelines for mitigating radiation nephropathy.
To highlight the need for validation of existing predictive models for RAKI.

Main Methods:

Review of existing literature on renal toxicity in radiotherapy.
Analysis of dose and volume parameters linked to kidney injury.
Evaluation of current predictive models and mitigation strategies.

Main Results:

Specific dose and volume parameters are identified as risk factors for renal toxicity.
Current predictive models for RAKI require further validation.
Evidence suggests potential mitigation of radiation nephropathy using ACE inhibitors and other compounds.

Conclusions:

Accurate assessment and management of radiation nephropathy are essential in radiotherapy planning.
Further research is needed to refine predictive models and validate protective interventions.
Optimizing radiotherapy techniques and employing protective agents can minimize long-term kidney damage.