Spinal anesthesia with lidocaine and with bupivacaine causes a clinically significant disturbance of bladder function due to interruption of the micturition reflex. The urge to void disappears quickly and bladder function remains impaired until the block has regressed to the third sacral segment in all patients. With long-acting local anesthetics, the volume of accumulated urine may exceed the cystometric bladder capacity. With respect to recovery of urinary bladder function, the use of short-acting local anesthetics for spinal anesthesia seems to be preferable.

Weak urinary stream, frequency and urgency were the most prevalent symptoms, while urgency, nocturia and hesitancy were the most bothersome symptoms. In contrast to weak urinary stream and hesitancy, the bothersomeness of incomplete emptying and frequency was strongly associated with well-being.

Performing urodynamics preoperatively helps to predict the degree of symptom relief, decreased bother and increased well-being after transurethral prostate resection.

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