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5/6 Nephrectomy Using Sharp Bipolectomy Via Midline Laparotomy in Rats

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Aging and chronic kidney disease.

Kosaku Nitta¹, Kazuyoshi Okada, Mitsuru Yanai

¹International Kidney Evaluation Association Japan (IKEAJ), Tokyo, Japan.

Kidney & Blood Pressure Research

|March 20, 2014

Summary

Geriatric nephrology requires attention to aging kidneys and chronic kidney disease (CKD) in older adults. Accurate diagnosis is crucial, as common equations may misclassify healthy elderly individuals with CKD.

Area of Science:

Nephrology
Gerontology
Internal Medicine

Background:

The aging kidney exhibits distinct morphological and functional changes impacting renal health.
The elderly population is heterogeneous, with varying degrees of glomerular filtration rate (GFR) decline due to aging and comorbidities like hypertension.

Purpose of the Study:

To summarize the aging kidney's properties and improve understanding of nephrology care for elderly patients with chronic kidney disease (CKD).
To highlight the implications of estimated GFR (eGFR) equations in diagnosing CKD in the elderly.

Main Methods:

Review of existing literature on geriatric nephrology, kidney aging, and CKD in older adults.
Analysis of the performance of common eGFR equations (MDRD, CKD-EPI) in the aging population.

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Examination of risk factors for end-stage renal disease (ESRD) and mortality in elderly CKD patients.

Main Results:

Standard eGFR equations (MDRD, CKD-EPI) underestimate GFR in the elderly, potentially leading to misdiagnosis of CKD.
Proteinuria significantly increases the risk of ESRD in older adults, even with non-severely impaired eGFR.
The risk of ESRD can outweigh mortality risk in elderly CKD patients, complicating treatment decisions.

Conclusions:

Accurate assessment of kidney function in the elderly is critical to avoid CKD misclassification.
Proteinuria is a key risk factor for ESRD in aging populations.
Therapeutic strategies targeting kidney aging, such as calorie restriction and addressing Klotho deficiency, warrant further investigation.