Saturday, February 20, 2010
The health disease may follow an attack of acute pyelonephritis which has been inadequately treated. It may be caused also by infection above an obstruction to the urinary tract e.g. calculus, due to stasis as a result of cytokine or interference with the innervations of the bladder e.g. in paraplegia or tabs dorsal is each. Coli are the organism responsible for most cases. In conditions in which the outflow tract of the bladder is obstructed or the nervous control of the bladder is deranged, reflux of urine into the greeters may occur during maturation. The question as to whether vesico-ureteric reflux occurs in the absence of such pathological lesions is unknown but if it does it is not clear to what extent it contributes to the development of pyelonephrits. Chronic pyelonephritis also occurs in conditions leading to nephrocalcinosis.
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