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Effects of Early Chronic Kidney Disease on Cardiovascular Risk

2014-08-27 03:17:25 | BioPortfolio

Summary

Studies of patients with established kidney disease, even when this is mild, appear to show that they are at high risk of heart failure, stroke and sudden cardiac death. This may be because kidney disease causes stiffening of the arteries in the body which means that the heart and brain are damaged by high blood pressure. By studying patients before and after the removal of a kidney (uni-nephrectomy) for transplantation the investigators will find out for the first time in man the effect of an isolated reduction in kidney function on the structure and function of the arteries and heart.

Hypotheses. An isolated reduction in GFR occuring after surgical uni-nephrectomy is associated with long term adverse cardiac and vascular effects which include:

1. Increased arterial stiffness and left ventricular mass

2. Abnormalities in left ventricular systolic and diastolic function

3. Increased oxidative stress, inflammation and collagen turnover

Study Design

Observational Model: Case Control, Time Perspective: Prospective

Conditions

Chronic Kidney Disease

Location

University Hospital Birmingham NHS Foundation Trust
Birmingham
West Midlands
United Kingdom
B15 2TT

Status

Not yet recruiting

Source

University of Birmingham NHS Foundation Trust

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:17:25-0400

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Medical and Biotech [MESH] Definitions

Conditions in which the KIDNEYS perform below the normal level for more than three months. Chronic kidney insufficiency is classified by five stages according to the decline in GLOMERULAR FILTRATION RATE and the degree of kidney damage (as measured by the level of PROTEINURIA). The most severe form is the end-stage renal disease (CHRONIC KIDNEY FAILURE). (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002)

The end-stage of CHRONIC RENAL INSUFFICIENCY. It is characterized by the severe irreversible kidney damage (as measured by the level of PROTEINURIA) and the reduction in GLOMERULAR FILTRATION RATE to less than 15 ml per min (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002). These patients generally require HEMODIALYSIS or KIDNEY TRANSPLANTATION.

Decalcification of bone or abnormal bone development due to chronic KIDNEY DISEASES, in which 1,25-DIHYDROXYVITAMIN D3 synthesis by the kidneys is impaired, leading to reduced negative feedback on PARATHYROID HORMONE. The resulting SECONDARY HYPERPARATHYROIDISM eventually leads to bone disorders.

Abnormal enlargement or swelling of a KIDNEY due to dilation of the KIDNEY CALICES and the KIDNEY PELVIS. It is often associated with obstruction of the URETER or chronic kidney diseases that prevents normal drainage of urine into the URINARY BLADDER.

A severe irreversible decline in the ability of kidneys to remove wastes, concentrate URINE, and maintain ELECTROLYTE BALANCE; BLOOD PRESSURE; and CALCIUM metabolism. Renal failure, either acute (KIDNEY FAILURE, ACUTE) or chronic (KIDNEY FAILURE, CHRONIC), requires HEMODIALYSIS.

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