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Urol Int. 2008;80(1):26-30. doi: 10.1159/000111725. Epub 2008 Jan 18.

Modified transurethral incision of the bladder neck treating primary bladder neck obstruction in young men: a method to improve voiding function and to preserve antegrade ejaculation.

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Department of Urology, Tzu Chi Buddhist Hospital, Taipei, Taiwan.



To evaluate the voiding function, ejaculation status and sexual function after the novel modification of transurethral incision of the bladder neck (TIBN) treating young men with primary bladder neck obstruction (PBNO).


Using a videourodynamic study, PBNO was diagnosed in 33 young men 27-50 years of age who presented with chronic lower urinary tract symptoms and low urinary flow. TIBN was performed in all patients, with the modification of preserving a portion of the supramontanal tissue during the procedure. International Prostate Symptom Score (I-PSS), quality of life, uroflowmetry, postvoid residual urine, the status of ejaculation and sexual function using the 5-item version of the International Index of Erectile Function (IIEF-5) were assessed before, 3 and 24 months after treatment.


Follow-up data were available in 32 (97%) and 26 (79%) patients at 3 and 24 months postoperatively, respectively. During the 2-year follow-up, mean I-PSS decreased from 20.7 to 5.9 (p < 0.01). Mean quality of life decreased from 4.2 to 2.3 (p < 0.01). Mean maximum flow increased from 10.7 to 19.2 ml/s (p < 0.01). Mean postvoiding residual urine decreased from 107 to 48 ml (p < 0.01). All patients had antegrade ejaculation postoperatively. Mean IIEF scores did not change significantly (22.6 +/- 2.6 vs. 20.7 +/- 4.3, p = 0.08). Successful overall outcome was achieved in 22 (84.6%) of 26 patients.


Applying this modified TIBN to treat the sexually active young men with PBNO had the advantage of improving voiding function and preserving both antegrade ejaculation and sexual function.

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