Related Experiment Video
Updated: Jul 18, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
Acute renal failure in the elderly: particular characteristics
Carlos G Musso1, Vassilis Liakopoulos, Iraklis Ioannidis
1Nephrology Department, Medical School, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina, and Medical School, University of Thessaly, Larissa, Greece.
Acute renal failure (ARF) is common in older adults due to age-related kidney changes and chronic conditions. Prevention strategies and cautious management are key, with dialysis offering a good prognosis for elderly patients with ARF.
Area of Science:
- Nephrology
- Geriatrics
- Internal Medicine
Background:
- Elderly individuals represent a rapidly growing patient demographic.
- Acute renal failure (ARF) is prevalent in older adults, though precise incidence data are lacking.
- Age-related structural and functional kidney changes, exacerbated by chronic conditions like hypertension and diabetes, increase susceptibility to renal damage.
Purpose of the Study:
- To review the literature on the characteristics of ARF in elderly patients.
- To provide useful guidelines for managing ARF in this population.
Main Methods:
- Literature review focusing on ARF in elderly patients.
- Analysis of age-related kidney changes and their impact on ARF.
- Discussion of diagnostic challenges and therapeutic approaches.
Main Results:
- ARF in the elderly is often multifactorial with atypical presentations, such as the 'intermediate syndrome'.
- Physical examination and laboratory findings can be misleading, potentially leading to misdiagnosis.
- Prophylaxis, including avoiding nephrotoxic agents, polypharmacy, dose adjustment, and cautious hydration, is crucial.
Conclusions:
- Preventive measures are paramount in managing ARF in the elderly.
- Dialysis is a viable and effective treatment option for ARF in older patients, associated with a favorable prognosis.
Related Concept Videos
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion
Renal Failure: Dose Adjustments
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Acute Kidney Injury I: Introduction
Dialysis
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Factors Affecting Renal Clearance: Renal Impairment
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
Drug Dosing: Geriatric Patients