Assessment of residual urine in men following catheterisation.
There is a certain volume of urine left within the bladder which cannot be drained by a catheter. A dilutional method was used to calculate this residual volume in 15 men; 10 had acute retention secondary to benign prostatic hyperplasia and 5 had permanent indwelling catheters for neurogenic urinary incontinence. The mean catheterised residual volume was 98.53 ml for patients with acute retention and 14.48 ml for patients with long-term catheters. The explanation for higher post-catheterisation volumes in the acute retention group is probably multifactorial; bladder sacculation and diverticula, detrusor tone and reflux may all play a role.
Department of Surgery, Princess Margaret Hospital, Swindon.
S F
SF
Purkiss
D000368:Aged; D002408:Catheters, Indwelling; D006801:Humans; D007201:Indicator Dilution Techniques; D008297:Male; D008875:Middle Aged; D014546:Urinary Catheterization / Q000592:standards*; D014556:Urine