OBJECTIVE To determine the frequency of patients with underlying renal insufficiency having normal serum creatinine level proceeding for coronary angiography. METHODS A total of 693 patients from September 2009 to February 2010 undergoing diagnostic coronary angiography at the National Institute of Cardiovascular Diseases (NICVD) with normal serum creatinine < 1.5 mg/dl were selected. Glomeru...

Objectives. Serum cystatin C seems to be an accurate marker of glomerular filtration rate (GFR) compared to serum creatinine. The aim of this work was to explore the possibility of using serum cystatin C instead of serum creatinine to early predict renal failure in cancer patients who received platinum based chemotherapy. Design and Methods. Serum creatinine, serum cystatin C concentrations, an...

Our kidneys maintain a constant internal environment and circulatory volume through a combination of filtration, selective reabsorption and secretion, and production of several key hormones. Young, healthy individuals filter 100 L of blood each day; however, their kidneys then reabsorb most of this for a mean urine output of only 1.5 L/day. This filtration process is necessary to eliminate bypr...

BACKGROUND The glomerular filtration rate (GFR) in homozygous sickle cell (SS) disease is supranormal in childhood but falls steeply with age, often culminating in renal failure. The risk factors underlying these observations are unclear. We therefore sought to investigate the relationships between blood pressure, renal hemodynamics, and urinary albumin excretion in subjects with SS disease and...

BACKGROUND Reliable serum creatinine measurements in glomerular filtration rate (GFR) estimation are critical to ongoing global public health efforts to increase the diagnosis and treatment of chronic kidney disease (CKD). We present an overview of the commonly used methods for the determination of serum creatinine, method limitations, and method performance in conjunction with the development ...

A study was conducted to evaluate the usefulness of GFR to assess the renal involvement in hypertension. GFR was assessed using the conventional blood urea and serum creatinine values and the eGFR is calculated based on serum creatinine by using the MDRD formula and Cockcroft – Gault formula. The values obtained were compared with serum Cystatin C and Cystatin based eGFR. It was observed that e...

INTRODUCTION In critically ill patients sudden changes in glomerular filtration rate (GFR) are not instantly followed by parallel changes in serum creatinine. The aim of the present study was to analyze the utility of serum cystatin C as a marker of renal function in these patients. METHODS Serum creatinine, serum cystatin C and 24-hour creatinine clearance (CCr) were determined in 50 critica...

The Schwartz formula was devised in the mid-1970s to estimate GFR in children. Recent data suggest that this formula currently overestimates GFR as measured by plasma disappearance of iohexol, likely a result of a change in methods used to measure creatinine. Here, we developed equations to estimate GFR using data from the baseline visits of 349 children (aged 1 to 16 yr) in the Chronic Kidney ...

Background Rapid and accurate estimation of the glomerular filtation rate (GFR) is required for many major clinical decisions in patients with chronic nephropathies [1]. Direct GFR measurement is time-consuming and expensive, frequently requires urine collection and isotope use, and is routinely available in only a few medical centers [1]. In clinical practice, GFR is usually estimated from the...

;25% false negatives. By contrast, plasma cystatin C better reflected GFR with the strongest correlation with Cr-labeled EDTA clearance and no false negatives. In a group of adult transplant recipients at steady-state renal function (average time since transplantation, 6 years), cystatin C was shown to have a better diagnostic value than serum creatinine for a GFR cutoff set at 60 mL/min (3 ). ...