Renal failure--measuring the glomerular filtration rate

Area of Science:

• Nephrology
• Biomarkers
• Renal Function

Background:

• Chronic kidney disease (CKD) is a growing public health concern, primarily driven by hypertension and diabetes.
• Early stages of CKD, characterized by reduced glomerular filtration rate (GFR), often go undetected, leading to disease progression.
• Timely identification of diminished GFR is essential for effective clinical intervention.

Purpose of the Study:

• To review literature and present clinical data on early detection of chronic renal disease.
• To evaluate the utility of endogenous filtration markers for estimating glomerular filtration rate (GFR).

Main Methods:

• Selective literature review using PubMed.
• Analysis of clinical and laboratory data.
• Evaluation of creatinine and cystatin C as endogenous filtration markers for GFR estimation.

Main Results:

• Direct GFR measurement using exogenous markers is accurate but costly and time-consuming.
• Endogenous markers creatinine and cystatin C, used in predictive equations, aid in early CKD diagnosis.
• Cystatin C-based equations demonstrate higher sensitivity for detecting low GFR compared to creatinine-based equations.

Conclusions:

• Creatinine and cystatin C based equations are valuable for early diagnosis of chronic renal disease.
• These equations facilitate disease staging according to National Kidney Foundation criteria.
• Utilizing these endogenous markers improves the early detection and management of kidney disease.