Practical Management of Patients with Dilated Upper Tracts and Chronic Retention of Urine

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Abstract
Patients with chronic retention of urine associated with dilated upper tracts were investigated by means of combined lower tract urodynamics and upper trace renography. It was shown that minor alterations in bladder volume lead to marked changes in isotope washout from the upper tracts. The practice of slow decompression of the bladder in these patients may be clinically impractical, and attention should be directed to the management of the postobstructive diuretic state. Apparently, upper tract drainage in such patients may be dependent upon postural factors, and the practical implication of this finding is discussed.