***TASK*** the task is to summarize an input biomedical literature in six sentences 
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    Input: OBJECTIVE To test the hypothesis that preoperative Valsalva leak point pressure ( VLPP ) predicts long-term outcome of mid-urethra slings for female stress urinary incontinence ( SUI ) . MATERIAL S AND METHODS One hundred and forty-five patients with SUI were prospect ively r and omized to two mid-urethra sling treatments : Tension free vaginal tape ( TVT ) or transobturator tape ( TOT ) . They were followed-up at 3 , 6 , 12 months post-operatively and then annually for the primary outcome variable , i.e. dry or wet and secondary outcome variables such as scores on the urogenital distress inventory ( UDI-6 ) and the impact of incontinence on quality of life ( IIQ-7 ) question naire as well as patient satisfaction as scored on a visual analogue scale ( VAS ) . Preoperative VLPP was correlated with primary and secondary outcome variables . RESULTS Mean follow-ups were 32 + /- 12 months ( range 12 - 55 ) for TVT and 31 + /- 15 months ( range 12 - 61 ) for TOT . When patients were analyzed according to VLPP stratification , 95 ( 65.5 % ) patients showed a VLPP > 60 cm H2O and 50 ( 34.5 % ) patients had a VLPP < or = 60 cm H2O . The overall objective cure rates were 75.8 % for patients with VLPP > 60 cm H2O and 72 % for those with VLPP < or = 60 cm H2O ( p < 0.619 ) . No significant differences in objective cure rates emerged when patients were stratified for pre-operative VLPP and matched for TOT or TVT procedures : VLPP > 60 cm H2O ( 82 % vs. 68.9 % p < 0.172 ) ; VLPP < or = 60 cm H2O ( 68 % vs. 76 % p < 0.528 ) . CONCLUSIONS When patients were stratified for preoperative VLPP ( < or = or > of 60 cm H2O ) , preoperative VLPP was not linked to outcome after TVT or TOT procedures Background Stress urinary incontinence ( SUI ) is a common problem . In the Netherl and s , yearly 64.000 new patients , of whom 96 % are women , consult their general practitioner because of urinary incontinence . Approximately 7500 urodynamic evaluations and approximately 5000 operations for SUI are performed every year . In all major national and international guidelines from both gynaecological and urological scientific societies , it is advised to perform urodynamics prior to invasive treatment for SUI , but neither its effectiveness nor its cost-effectiveness has been assessed in a r and omized setting .The Value of Urodynamics prior to Stress Incontinence Surgery ( VUSIS ) study evaluates the positive and negative effects with regard to outcome , as well as the costs of urodynamics , in women with symptoms of SUI in whom surgical treatment is considered . Methods / design A multicentre diagnostic cohort study will be performed with an embedded r and omized controlled trial among women presenting with symptoms of ( predominant ) SUI.Urinary incontinence has to be demonstrated on clinical examination and /or voiding diary . Physiotherapy must have failed and surgical treatment needs to be under consideration . Patients will be excluded in case of previous incontinence surgery , in case of pelvic organ prolapse more than 1 centimeter beyond the hymen and /or in case of residual bladder volume of more than 150 milliliter on ultrasound or catheterisation . Patients with discordant findings between the diagnosis based on urodynamic investigation and the diagnosis based on their history , clinical examination and /or micturition diary will be r and omized to operative therapy or individually tailored therapy based on all available information . Patients will be followed for two years after treatment by their attending urologist or gynaecologist , in combination with the completion of question naires . Six hundred female patients will be recruited for registration from approximately twenty-seven hospitals in the Netherl and s. We aspect that one hundred and two women with discordant findings will be r and omized . The primary outcome of this study is clinical improvement of incontinence as measured with the vali date d Dutch version of the Urinary Distress Inventory ( UDI ) . Secondary outcomes of this study include costs , cure of incontinence as measured by voiding diary parameters , complications related to the intervention , re- interventions , and generic quality of life changes . Trial registration Clinical Trials NCT00814749 INTRODUCTION The purpose of this study was to compare transobturator tape ( MONARC ) with tension-free vaginal tape in patients with borderline low maximum urethral closure pressure . STUDY DESIGN Historical cohort analysis of 3-month outcomes in 145 subjects ( MONARC = 85 ; tension-free vaginal tape = 60 ) . A cut-off point of 42 cm H2O for preoperative maximum urethral closure pressure was identified as predictor of success in the entire cohort . The cohort was stratified by sling type and analyzed . Outcome variables included urodynamic stress incontinence , urethral pressure profiles , subjective stress incontinence symptoms , and complications . RESULTS The relative risk of postoperative urodynamic stress incontinence 3 months after surgery in patients with a preoperative maximum urethral closure pressure of 42 cm or less H2O was 5.89 ( 1.02 to 33.90 , 95 % confidence interval ) when we compared MONARC with tension-free vaginal tape . Subjects in the MONARC and tension-free vaginal tape groups did not differ significantly in baseline characteristics . We defined subjects as failures if they demonstrated postoperative objective stress incontinence on multichannel urodynamic testing . CONCLUSION In subjects with maximum urethral closure pressure of 42 cm or less H2O , the MONARC was nearly 6 times more likely to fail than tension-free vaginal tape at 3 months after surgery . Long-term follow-up and r and omized controlled trials are needed The objective of this study is to determine the outcomes for the Lynx ® midurethral sling system in the treatment of urodynamic stress incontinence ( USI ) . Prospect i ve study of 118 subjects who underwent a Lynx ® midurethral sling procedure for USI . Subjects were considered cured if they were subjectively dry by history and objective ly dry by st and ing stress test . Intraoperative and postoperative complications were documented . Complete information was available on 102 ( 86 % ) subjects at 1 year . Ninety-two patients were considered cured , and ten were failures . There were four intraoperative bladder perforations and five ( 4.2 % ) erosions . Two patients developed urinary retention with one resolving at 31 days and the other undergoing subsequent takedown at 6 months . Both remain dry at 12 months . The Lynx ® midurethral sling system shows high subjective and objective success rates for the treatment of USI at 1 year with low rates of intraoperative and postoperative complications The goals of this study were to assess the efficacy of inside-out transobturator vaginal tape ( TVT-O ) as a treatment of urodynamic stress incontinence ( USI ) and to explore the possible factors determining surgical success and failure . Each woman had a 20-min pad test and urodynamic study including uroflowmetry , cystometry , and stress urethral pressure profile before and after treatment . Forty-six of the 54 women ( 85 % ) were cured of the disease , and two ( 4 % ) showed clinical improvement ; TVT-O had failed to treat USI in six patients ( 11 % ) during the 9-month follow-up period . We assessed the relationship between clinical features , urodynamic parameters , and treatment outcome . Of these , only age and previous anti-incontinence surgery were significant risk factors for surgical failure . The success rate during the 9-month follow-up period decreased significantly in women ≧60 years and in women with previous anti-incontinence surgery . Women with USI can be treated by the TVT-O procedure BACKGROUND Few series comparing the clinical efficacy of retropubic slings versus transobturator slings for the treatment of female stress urinary incontinence ( SUI ) are available . OBJECTIVE To compare clinical efficacy of retropubic tape operations and transobturator suburethral tape operations for the surgical treatment of female SUI . DESIGN , SETTING , AND PARTICIPANTS From January 2003 to December 2005 , 611 patients underwent clinical and urodynamic evaluation before surgical treatment for SUI . Patients with advanced urogenital prolapse ( pelvic organ prolapse-quantification scale [ POP-Q ] scale grade > 1 ) were excluded , and 537 patients were included in this study . After 18 mo , 398 women were available for follow-up efficacy evaluation at a tertiary academic center . INTERVENTION All patients underwent either a retropubic sling procedure or a transobturator sling procedure . Patients were r and omly allocated into two study groups at a ratio of 1:1 . MEASUREMENTS After 18 mo all enrolled patients were clinical ly checked for clinical efficacy of both procedures . RESULTS AND LIMITATIONS Demographic and urodynamic parameters of patients were similar in both groups . No bladder injury occurred in the transobturator sling group ( IVS-04 ) , whereas 13 intraoperational bladder perforations ( 6.5 % ) occurred in the retropubic sling group ( IVS-02 ) ( p<0.001 ) . The tape erosion rate was < 2.5 % in both groups ( p=0.7 ) . After 18 mo , 398 patients ( 201 in the IVS-02 group and 197 in the IVS-04 group ) were evaluated in terms of clinical efficacy of the procedures . We found out that there was no statistically significant difference in clinical efficacy between these two procedures ( chi(2)=1.88 , p=0.39 ) . In the IVS-02 group , 75.1 % of patients ( n=151 ) remained dry ( cured ) , 16.9 % of patients ( n=34 ) reported significant improvement , and 8.0 % of patients ( n=16 ) were considered as failures . In the IVS-04 group , 74.1 % of patients ( n=146 ) remained dry , 14.2 % of patients ( n=28 ) reported significant improvement , and 11.7 % ( n=23 ) were considered as failures . CONCLUSIONS Based on an 18-mo follow-up , the efficacies of both techniques are comparable ; however , the retropubic route appears to be more efficient in the intrinsic sphincter deficiency ( ISD ) group The purpose of this study was to evaluate the outcome of tension-free vaginal tape ( TVT ) procedure in women with urodynamic stress incontinence diagnosed as having intrinsic sphincteric deficiency ( ISD ) . The combination of a maximal urethral closure pressure < 20 cm H2O and a Valsalva leak point pressure < 60 cm H2O was considered as diagnostic of ISD . Subjects with detrusor overactivity on preoperative urodynamics were excluded . A total of 35 patients with both low closure pressure and leak point pressure were enrolled .  Bladder perforation occurred in three ( 8.6 % ) cases . Postoperative urinary voiding difficulties occurred in nine ( 25.7 % ) women . Two patients underwent surgical detension of the tape , with complete resolution of urinary retention and no relapse of incontinence . Women with postoperative voiding dysfunction had a significantly lower detrusorial pressure at the peak flow on preoperative urodynamics compared to those who voided efficiently after TVT . The mean ( range ) follow-up time was 12.5 months ( 3–36 ) . The objective cure rate for stress incontinence was 91.4 % . Two of the three ( 66 % ) patients in whom the TVT procedure failed had a fixed urethra . De novo urge incontinence was found in five ( 14.3 % ) patients OBJECTIVES This prospect i ve , multicentre , r and omised study compared the safety and success rate of tension-free vaginal tape ( TVT ) and transobturator tape ( TOT ) in treatment of female stress urinary incontinence . METHODS Of 148 women , 73 were r and omised to TVT and 75 to TOT .  Preoperative workups included case history , clinical examination , Urogenital Distress Inventory and Impact Incontinence Quality of life question naires , 1-h pad test , pelvic ultrasound , and urodynamics . Intra- and postoperative complications were the primary end point ; subjective and objective changes in SUI , and postoperative voiding dysfunctions were secondary end points . Patients were classified into two main categories : dry ( no leakage during clinical and /or stress test and /or reported by patients ) versus wet . Patients who referred being wet were separated into " improved " or " failure " on subjective analysis . Other outcome variables were quality of life question naires and VAS scale . Clinical checkups were conducted at 3 , 6 , 12 mo , and then annually . RESULTS Both techniques are safe and no significant differences emerged in intra- and postoperative complications . At a mean follow-up of 31 mo , the overall objective cure ( dry ) was 71.4 % for TVT and 77.3 % for TOT ( p = ns ) . When one 
    Output:
    
Conclusions Preoperative MUCP and VLPP values may add insight into postoperative outcomes after surgical treatment for SUI