Prevention Of Urinary Retention Research Articles

A Randomized Study to Compare Biodegradable Self-reinforced Polyglycolic Acid Spiral Stents to Suprapubic and Indwelling Catheters After Visual Laser Ablation of the Prostate

A randomized controlled study was done to evaluate the efficacy of the self-reinforced polyglycolic acid spiral stent compared to a suprapubic catheter, and combined suprapubic and indwelling catheters in the prevention of urinary retention after visual laser ablation of the prostate. We studied 72 men with benign prostatic hyperplasia who underwent placement of a suprapubic catheter and visual laser ablation of the prostate. In 27 men in group 1 the self-reinforced polyglycolic acid spiral stent was inserted into the prostatic urethra after visual laser ablation of the prostate, while 23 in group 2 received no other devices. In 22 men in group 3 an indwelling catheter was left in situ for an average of 6.5 days. Voiding began 1 or 2 days postoperatively in 20 of 27 patients (median 1 day) in group 1, and 8 of 23 (median 6 days) in group 2. In 16 of 22 men in group 3 voiding began 1 or 2 days (median 6) after removal of the indwelling catheter. Improvements in patient weighted symptom score, mean peak urinary flow rate and post-void residual volume were significant (p < 0.001) at 6 months of followup in all groups. The overall infection rate was 30%. The self-reinforced polyglycolic acid spiral stent is superior to the suprapubic catheter alone, and to combined indwelling and suprapubic catheters for the treatment of postoperative urinary retention after laser therapy, offering possibilities for shorter catheterization time.

Prevention of Urinary Retention With Phenoxybenzamine During Epidural Morphine

Etude chez 60 malades recevant le meme traitement antalgique: 4 mg de chlorhydrate de morphine, intrarachidien. 30 d'entre eux recoivent per os 4 doses de 10 mg de phenoxybenzamine avant et apres l'introduction de morphine. Les complications de retention d'urine sont reduites ou supprimees dans le groupe recevant la phenoxybenzamine

An Experimental Study of Urodynamic Effects of Epidural Morphine and of Naloxone Reversal

Urinary retention after epidural morphine is a distressing and troublesome complication. This study was undertaken to determine the effects of morphine (epidural, intramuscular, and intravenous) on urinary bladder function and possible reversal by naloxone. Thirty male volunteers (aged 20-28 years) were studied; the doses studied were 2, 4, and 10 mg of epidural morphine, 10 mg intramuscular morphine, and 10 mg intravenous morphine. The urodynamic study consisted of measurements of urine flow rate, strength of detrusor contraction, bladder capacity, and urethral pressure. Irrespective of dose, all subjects receiving epidural morphine showed marked relaxation of the detrusor shortly after injection. There was a corresponding increase in the maximal bladder capacity leading to urinary retention. These effects lasted an average of 14-16 h. Urethral pressures remained unchanged. Urodynamic changes after intramuscular and intravenous morphine were minimal. Treatment using a single intravenous injection of 0.8 mg naloxone promptly reversed the effects of epidural morphine on the bladder. Prevention of urinary retention was achieved with an intravenous infusion of naloxone started before administration of epidural morphine. The possible mechanisms of urinary retention following epidural opiates are discussed.

Comparison of two agents in prevention of urinary retention after benign anorectal surgery

In an attempt to substantiate the efficacy of Urecholine and Dibenzyline in prevention of urinary retention, 263 patients who had rectal surgery for benign anorectal abnormalities were divided into three comparable groups; one group was given Urecholine, another group was given Dibenzyline in 10-mg doses orally, four and eight hours after surgery and the third group was given nothing as a control. The control group had a higher incidence of urinary retention 28.2 per cent; but Dibenzyline did not prevent urinary retention in 20 per cent of the patients and was no more effective than Urecholine at 22.4 per cent.

Prevention of urinary retention after anorectal operations.

Postoperative inability to urinate is likely to be due to acute distention of the bladder by rapid fluid intake, general sensory depression, sphincter spasm, prostatic obstruction, or a combination of these factors. A simple, effective method for the prevention of postoperative urinary retention and the need for catheterization which approaches 100 per cent effectiveness has been outlined. It consists of enteral and parenteral fluid restriction in the pre- and postoperative periods and theprecise instruction of the patient and nursing staff in proper technic to achieve this goal. It is extremely important to make positive statements and give precise instructions to the patient. If this is not done properly, there will be approximately 10 per cent failures. Use of the method resulted in spontaneous urination in 100 consecutive adult patients of all ages following surgical procedures on the anorectum.

Prevention of Urinary Retention in the Puerperium with Mercurochrome Bladder Instillations

Prevention of Urinary Retention in the Puerperium with Mercurochrome Bladder Instillations