BJU international
-
Clinical Trial
Percutaneous tibial nerve stimulation in the treatment of refractory overactive bladder syndrome: is maintenance treatment necessary?
To determine the effect of a pause in percutaneous tibial nerve stimulation (PTNS) in successfully treated patients with an overactive bladder (OAB), and the reproducibility of successful treatment when restored. ⋯ Continuous therapy is necessary in patients with OAB treated successfully by PTNS. The efficacy of PTNS can be reproduced in patients formerly treated successfully.
-
Randomized Controlled Trial
Site of local anaesthesia in transrectal ultrasonography-guided 12-core prostate biopsy: does it make a difference?
To prospectively compare the efficacy of bi-basal vs bi-apical periprostatic nerve block (PPNB) during 12-core prostate biopsy guided by transrectal ultrasonography (TRUS), and to evaluate the pain experienced on inserting the probe compared to the biopsy procedure, as PPNB with lignocaine local anaesthesia has been used for over a decade for minimizing pain during prostatic biopsy. ⋯ Patients who experienced greater pain with the introduction of the probe also reported more pain with the biopsy procedure. The site of local anaesthetic before prostatic biopsy showed no significant difference in pain scores. Older men tolerated the procedure better. Analgesia after PPNB at near either the apex or base appears equal, regardless of the site of injection. We suggest that topical perianal anaesthetic agents could significantly reduce not only pain perception, but also improve tolerance.
-
To study the effect of 3 weeks of partial bladder outlet obstruction (BOO), compared to a sham operation, on the cholinergic and purinergic components of detrusor contractile responses to agonists and to electrical field stimulation (EFS); the expression of P2X receptor subtypes was also examined. ⋯ In the rat, after moderate bladder hypertrophy, the atropine-sensitive component was significantly up-regulated, but the ATP-sensitive component was marginally reduced, although not significantly. These results suggest that up-regulation of the P2X component of bladder contraction seen in humans with bladder instability, and in other species models of BOO, is not mirrored in the rat, or occurs later in the pathological process of bladder hypertrophy.