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Kidney disease

What are the causes?

Causes of kidney failure in children include:

  • Abnormalities in the development of the kidneys or urinary tract. These may be inherited, or occur in children with no family history of kidney disease. The terms dysplasia or hypoplasia are used to describe a failure of the kidneys to develop or grow properly.
  • Vesico-ureteric reflux describes a condition in which urine can flow back up into the kidneys as a child empties their bladder. This can cause scarring to the kidneys, particularly if the urine is infected.

In cystic kidney disease fluid filled sacs, or cysts, develop in the kidney, interfering with normal kidney function. The commonest form is adult polycystic disease, which is inherited as an autosomal dominant. It is a common cause of kidney failure in adults, but cysts rarely cause problems in childhood. In autosomal recessive polycystic kidney disease cysts can develop before birth, leading to kidney failure in infants and children. The condition may be associated with liver problems.

Glomerulonephritis describes inflammation of the glomeruli, or filters of the kidney. Often the cause or trigger is unknown. In haemolytic uraemic syndrome damage to the kidneys often follows infection with a bacterium called Escherichia coli.

Nephrotic syndrome in children is usually caused by a condition known as minimal change disease, so called because there is little abnormal to see if you look at a kidney biopsy from an affected child under the microscope. It is associated with leakage of protein into the urine, but does not affect the other functions of the kidney, and so does not cause kidney failure. It usually responds to treatment with steroids.

View What are the symptoms? What are the symptoms?  |  How is it treated? View How is it treated?

Medical text written October 2000 by Dr J Bradley. Additional material on Diabetes and Kidney disease written February 2003 by Contact a Family. Approved February 2003 by the Medical Advisory Board (Consultant Nephrologist) of the National Kidney Research Fund, UK. Last reviewed May 2005 by Dr J Bradley, Consultant Nephrologist, Director of Renal Medicine, Addenbrooke's Hospital, Cambridge, UK.

 

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