Prevalence of Musculoskeletal Disorders Among Surgeons Performing Minimally Invasive Surgery: A Systematic Review.

OBJECTIVE: The aim of this study was to review musculoskeletal disorder (MSD) prevalence among surgeons performing minimally invasive surgery. BACKGROUND: Advancements in laparoscopic surgery have primarily focused on enhancing patient benefits. However, compared with open surgery, laparoscopic surgery imposes greater ergonomic constraints on surgeons. Recent reports indicate a 73% to 88% prevalence of physical complaints among laparoscopic surgeons, which is greater than in the general working population, supporting the need to address the surgeons' physical health. METHODS: To summarize the prevalence of MSDs among surgeons performing laparoscopic surgery, we performed a systematic review of studies addressing physical ergonomics as a determinant, and reporting MSD prevalence. On April 15 2016, we searched Pubmed, EMBASE, the Cochrane Library, Web of Science, CINAHL, and PsychINFO. Meta-analyses were performed using the Hartung-Knapp-Sidik-Jonkman method. RESULTS: We identified 35 articles, including 7112 respondents. The weighted average prevalence of complaints was 74% [95% confidence interval (95% CI) 65-83]. We found high inconsistency across study results (I = 98.3%) and the overall response rate was low. If all nonresponders were without complaints, the prevalence would be 22% (95% CI 16-30). CONCLUSIONS: From the available literature, we found a 74% prevalence of physical complaints among laparoscopic surgeons. However, the low response rates and the high inconsistency across studies leave some uncertainty, suggesting an actual prevalence of between 22% and 74%. Fatigue and MSDs impact psychomotor performance; therefore, these results warrant further investigation. Continuous changes are enacted to increase patient safety and surgical care quality, and should also include efforts to improve surgeons' well-being.

The Impact of Midurethral Sling Surgery on Sexual Activity and Function in Women With Stress Urinary Incontinence.

INTRODUCTION: Stress urinary incontinence has a negative impact on sexual function. AIM: To assess the effect of midurethral sling surgery on sexual activity and function in women with stress urinary incontinence. METHODS: This is a secondary analysis of the Value of Urodynamics Prior to Stress Incontinence Surgery (VUSIS-II) study, which assessed the value of urodynamics in women with (predominantly) stress urinary incontinence. Patients who underwent retropubic or transobturator sling surgery were included in the present study if information was available on sexual activity before and 12 months after surgery. Data were collected from a self-report validated questionnaire combined with non-validated questions. The association between midurethral sling surgery and sexual function (coital incontinence, satisfaction, and dyspareunia) was compared with McNemar χ(2) tests for nominal data and paired t-tests for ordinal data. Potentially influential factors were analyzed with univariable and multivariable logistic regression analyses. MAIN OUTCOME MEASURES: Changes in sexual activity and sexual function after midurethral sling surgery. RESULTS: Information on sexual activity was available in 293 of the 578 women (51%) included in the VUSIS-II study. At baseline, 252 of 293 patients (86%) were sexually active vs 244 of 293 (83%) after 12 months. More patients with cured stress urinary incontinence were sexually active postoperatively (213 of 247 [86%] vs 31 of 46 [67%], P < .01). There was a significant decrease in coital incontinence (120 of 236 [51%] preoperatively vs 16 of 236 [7%] postoperatively, P < .01). De novo dyspareunia was present in 21 of 238 women (9%). There was a greater improvement in coital incontinence after placement of the retropubic sling compared with the transobturator sling (odds ratio = 2.04, 95% CI = 1.10-3.80, P = .02). CONCLUSION: These data show that midurethral sling surgery has an overall positive influence on sexual function in women with stress urinary incontinence. The retropubic sling is more effective than the transobturator sling for improvement of coital incontinence. De novo dyspareunia was present in 1 of 11 women.

Bladder function after radical hysterectomy for cervical cancer.

AIM: To report the effects of radical hysterectomy and nerve-sparing techniques on lower urinary tract function in women. METHODS: A literature search was performed in Pubmed and Medline using the keywords bladder after radical hysterectomy, nerve sparing radical hysterectomy, and urinary dysfunction following radical hysterectomy. Significant results and citations were reviewed manually by the authors. RESULTS: The sympathetic and parasympathetic systems innervating the lower urinary tract may be disrupted due to resection of uterosacral and rectovaginal ligaments, the dorsal and lateral paracervix, the caudal part of the vesico-uterine ligaments, and the vagina. This supports the neurogenic etiology of early and late bladder dysfunction after radical surgery. Bladder disorders are also related to the extent of radical surgery. The neuropathopysiology of lower urinary tract symptoms after radical hysterectomy is not fully understood. Recent data have highlighted the role of urethral sphincter pressure in the etiology of postoperative incontinence. Various surgical approaches have been developed to preserve autonomic pelvic innervation. CONCLUSIONS: Nerve-sparing techniques appear to improve bladder function without compromising overall survival. Studies comparing the effects of nerve-sparing radical hysterectomy with standard surgery yielded encouraging results in respect of postoperative lower urinary tract function. Clinical trials with a long period of follow-up are required for better comprehension of the complex pathophysiology of bladder dysfunction after radical hysterectomy.

Results of primary versus recurrent surgery to treat stress urinary incontinence in women.

INTRODUCTION AND HYPOTHESIS: We compared cure rates and complication rates in patients who had undergone primary or recurrent (secondary) surgery for stress urinary incontinence (SUI). METHODS: A retrospective cohort study that included patients who underwent surgery to treat SUI in a tertiary referral center was carried out. All patients had, predominantly, SUI. Exclusion criteria were patients with a neurogenic bladder or a neobladder and patients without postoperative follow-up (FU). The primary objective was to assess the success rate, defined as cured SUI or improved SUI at six weeks and at the latest available moment of FU. The secondary objective was to assess complications. RESULTS: A total of 541 women with SUI underwent surgery for SUI between 2002 and 2010. After exclusion of 102 patients a total of 242 patients with primary SUI and 197 patients with recurrent SUI were identified. The success rate at first FU was 89 %. At last FU (median 205 days) the success rate was 83 % (P < 0.01). There were no significant differences in success rate between primary and recurrent surgery at first FU. The overall success rate of primary surgery was 86 %; for recurrent surgery it was 79 %. During surgery, 27 bladder injuries occurred (6.2 %), with no significant difference between the two groups. At last FU, 11 patients (2.6 %) had persistent residual volume, necessitating prolonged clean intermittent self-catheterization. CONCLUSIONS: The results of recurrent surgery to treat recurrent or persistent SUI are still good in experienced hands and do not significantly differ from results of primary surgery. The complication rates are comparable to those of primary surgery.

Dynamic magnetic resonance imaging before and 6 months after laparoscopic sacrocolpopexy.

INTRODUCTION AND HYPOTHESIS: The objective of this study was to correlate dynamic magnetic resonance imaging (MRI) with Pelvic Organ Prolapse Quantification (POP-Q) measurements and pelvic floor symptoms in order to determine the value of dynamic MRI for evaluating vaginal vault prolapse both before and 6 months after laparoscopic sacrocolpopexy. METHODS: This was a prospective, single-center cohort study in 43 patients who underwent a modified laparoscopic sacrocolpopexy/hysteropexy operation using bone-anchor fixation and synthetic mesh. The study included dynamic MRI, POP-Q staging, and validated questionnaires before and 6 months after laparoscopic sacrocolpopexy. To assess MRI data, the pubococcygeal reference line and specifically defined anatomical landmarks for the separate compartments were used. Differences between pre- and postoperative measurements were evaluated with the Wilcoxon signed-rank test, and correlations at the 0.05 level were considered to be significant (Pearson correlation, two tailed). RESULTS: At 6 months, a statistically significant improvement was seen in POP-Q staging for all compartments. Dynamic MRI measurements only revealed a significant improvement after surgery for the apical compartment. The correlation between (changes in) MRI measurements, POP-Q measurements, and validated questionnaires was poor. CONCLUSIONS: The value of dynamic MRI for evaluating and documenting changes in vaginal vault support and position after laparoscopic sacrocolpopexy is limited due to the poor correlation with both POP-Q staging and pelvic floor symptoms.

Collagen type III alpha 1 polymorphism (rs1800255, COL3A1 2209 G>A) assessed with high-resolution melting analysis is not associated with pelvic organ prolapse in the Dutch population.

INTRODUCTION AND HYPOTHESIS: The rs1800255, COL3A1 2209 G>A polymorphism in the alpha 1 chain of collagen type III has been associated with an increased risk of pelvic organ prolapse (POP). In one of our previous studies however, polymerase chain reaction-based restriction fragment length polymorphism (PCR-RFLP) misdiagnosed rs1800255, COL3A1 2209 G>A in 6 % of cases. The high-resolution melting (HRM) analysis on the contrary obtained a 100 % accordance for this specific polymorphism and was used in the present study to validate this risk factor for POP. METHODS: In this case-control study, women with and without symptoms of POP were included and compared. DNA was extracted from blood samples. HRM analysis was used to assess for the presence of the homozygous rs1800255. Groups were compared using the Pearson chi-square, Mann-Whitney, and t tests. The discrepancy between HRM and PCR-RFLP results was investigated using PCR-RFLP results available from our previous study. RESULTS: The study included 354 women: 272 patients with POP and 82 controls; 18 (7 %) cases versus 3 (4 %) controls had a homozygous rs1800255, COL3A1 2209 G>A polymorphism (odds ratio 1.9, 95 % confidence interval 0.5-6.9, compared to the wild type), and thus no association between POP and the homozygous polymorphism could be demonstrated. A discrepancy between HRM and PCR-RFLP results was found in 8 % of the samples. CONCLUSIONS: The previously found statistically significant association between the rs1800255, COL3A1 2209 G>A polymorphism as measured with PCR-RFLP and POP could no longer be demonstrated. This raises concerns regarding the results of other association studies using PCR-RFLP.

Urinary incontinence after surgery for pelvic organ prolapse.

AIMS: This study focused on the changes in urinary incontinence (UI) rates pre- and postoperatively and identified risk factors which predict the presence of symptoms of urgency urinary incontinence (UUI) or stress urinary incontinence (SUI) after surgery for pelvic organ prolapse (POP) without concomitant or previous anti-incontinence surgery. METHODS: All consecutive women who underwent POP surgery without concomitant or previous anti-incontinence surgery in the years 2004-2010 were included. Assessments were performed preoperatively and at 1-year follow-up, including pelvic organ prolapse quantification score and a standardized urogynecological questionnaire (Urogenital Distress Inventory, UDI). Primary outcome of this study was stress and/or urgency UI postoperatively. Furthermore, this study measured the improvement or worsening of UI following surgery using the UDI. Univariable- and multivariable logistic regression with forward selection procedure was used to identify the risk factors. RESULTS: Nine hundred seven patients were included. De novo SUI appeared in 22% and de novo UUI occurred in 21% of the women. At 1-year 42% were cured for UUI and 39% were recovered from SUI by POP surgery alone. The best predictor for the occurrence of postoperative SUI or UUI was the presence of preoperative SUI or UUI. BMI and chronic obstructive pulmonary disease (COPD) were identified as independent risk factors for postoperative SUI. A recurrence in the anterior compartment protected against SUI postoperatively. CONCLUSIONS: Preoperative SUI or UUI is the most important predictor of SUI and UUI postoperatively. BMI and COPD were identified as important risk factors for SUI.

Extreme cervical elongation after sacrohysteropexy.

We present a case of extreme cervical elongation with a cervix of 12 cm after an unusual operation in which the uterine corpus was directly fixed to the promontory, and which became symptomatic after 8 years. The possible pathophysiology of cervical elongation is discussed. Diagnosing a case of severe cervical elongation can be important in the pre-operative evaluation. It can alter the operative plan to a uterus-sparing technique or it can alert the surgeon to a difficult entry in the abdominal cavity during vaginal hysterectomy.

Does training of the nondominant upper extremity reduce the surgeon's muscular strain during laparoscopy?: Results from a randomized controlled trial.

INTRODUCTION: In laparoscopy, suboptimal ergonomics frequently lead to morbidity for surgeons. Physical complaints are more commonly reported on the dominant upper extremity. This may be the consequence of challenging laparoscopic tasks being easier to perform with the dominant side. The authors hypothesized that specific training of the nondominant upper extremity may equip this side better and lead to a more equal distribution of physical load. MATERIALS AND METHODS: Participants (medical doctors) were randomized to a 3-week training schedule or no training. The training program consisted of training the nondominant upper extremity. Participants were not allowed to train on a laparoscopic box or virtual reality trainer during the study period. Baseline and outcome measurements after 3 weeks were examined with the use of EMG measurements during a validated task on a laparoscopic box trainer. Muscle strain of the trapezius and deltoid muscles and effective alternation of brachioradial and abductor pollicis brevis muscles were used as outcome variables. RESULTS: In all, 26 participants were included. EMG analysis revealed that participants in both intervention and control groups showed a decrease in muscle strain of trapezius and deltoid muscles. However, there were no significant differences between groups. Those in the intervention group showed significantly better alternation in the brachioradial muscle. CONCLUSION: Training the nondominant upper extremity leads to better alternated use of lower-arm muscles during a validated box trainer task. Repeating the task after 3 weeks led to less muscle tension in the trapezius and deltoid muscles.

Outcomes and predictors of failure of trocar-guided vaginal mesh surgery for pelvic organ prolapse.

OBJECTIVE: The objective of the study was to compare the 1 year conventional and composite outcomes of trocar-guided vaginal mesh surgery and the identification of the predictors of failure. STUDY DESIGN: This was a prospective observational cohort study. Failure outcome definitions were as follows: I, prolapse stage II or greater in mesh treated compartments; II, overall prolapse stage II or greater; III, composite outcome of overall prolapse greater than the hymen and the presence of bulge symptoms or repeat surgery. We used logistic regression to identify predictors of failure. RESULTS: The results of the study were 1 year follow-up of 433 patients. Treated compartment failure (I) was 15% (95% confidence interval [CI], 12-19). Overall prolapse failure (II) was 41% (95% CI, 36-45). Composite failure (III) was 9% (95% CI, 7-13). Predictor of failure in all outcomes was the combined anterior/posterior mesh with the uterus in situ. CONCLUSION: Outcome of prolapse surgery depends on outcome definition. The mesh treated compartment failure outcome (I) and the composite failure outcome (III) appeared not to be statistically different. Consistent factor for failure in all outcomes was the combined anterior/posterior mesh insertion with the uterus in situ.

A systematic review of clinical studies on hereditary factors in pelvic organ prolapse.

INTRODUCTION AND HYPOTHESIS: There is growing evidence that pelvic organ prolapse (POP) is at least partly caused by underlying hereditary risk factors. The aim of our study was to provide a systematic literature review and meta-analysis of clinical studies on family history of POP as a risk factor for POP in individual women. METHODS: The databases PubMed and Embase were searched. Clinical studies reporting on family history of POP in relation to POP in individual women were included. RESULTS: Sixteen studies were included, of which eight enabled us to calculate a pooled odds ratio (OR). The pooled OR of POP in case of a positive family history of POP was 2.58 (95 % confidence interval 2.12-3.15). CONCLUSIONS: Women with POP are substantially more likely to have family members with the same condition compared to women without POP. This strengthens the hypothesis that genetic predisposition plays an important role in the development of POP.

Laparoscopic sacrocolpopexy with bone anchor fixation: short-term anatomic and functional results.

INTRODUCTION AND HYPOTHESIS: The aim of this study was to evaluate short-term anatomic and functional outcomes and safety of laparoscopic sacrocolpopexy with bone anchor fixation. METHODS: A prospective cohort study of women undergoing laparoscopic sacrocolpopexy between 2004 and 2009. Anatomic outcome was assessed using the pelvic organ prolapse quantification score (POP-Q). Functional outcomes were assessed using the Urogenital Distress Inventory, Defecatory Distress Inventory, and the Incontinence Impact Questionnaire preoperatively and at 6 months postoperatively. The Wilcoxon signed rank test was used to test differences between related samples. RESULTS: Forty-nine women underwent laparoscopic sacrocolpopexy. The objective success rate in the apical compartment was 98%, subjective success rate was 79%. One mesh exposure (2%) was found. One conversion was necessary due to injury to the ileum. CONCLUSIONS: Laparoscopic sacrocolpopexy with bone anchor fixation is a safe and efficacious treatment for apical compartment prolapse. It provides excellent apical support and good functional outcome 6 months postoperatively.

Diagnosing pubovisceral avulsions: a systematic review of the clinical relevance of a prevalent anatomical defect.

The aims of this systematic literature review were to assess whether the detection of pubovisceral avulsions using magnetic resonance (MR) imaging or perineal ultrasonography was clinically relevant in women with pelvic floor dysfunction and to evaluate the relation with anatomy, symptoms, and recurrence after surgery. We performed a systematic literature review using three bibliographical databases (PubMed, Embase, and CINAHL) as data sources. Clinical studies were included in which pubovisceral avulsions were studied in relation to pelvic organ prolapse (POP) stage, pelvic floor symptoms, and/or recurrence of POP after surgery. Ultimately, 21 studies met the inclusion criteria. POP stage and recurrence of POP after surgery were strongly associated with pubovisceral avulsions. Contradictory results were found regarding the relation between pubovisceral avulsions and urinary symptoms and symptoms of anorectal dysfunction. Pubovisceral avulsions, as diagnosed by MR imaging or perineal ultrasonography, are associated with higher stages of POP and recurrence of POP after surgery.

The value of preoperative urodynamics according to gynecologists and urologists with special interest in stress urinary incontinence.

INTRODUCTION AND HYPOTHESIS: The aim of this study is to assess variations in practice in the use of preoperative urodynamics in women with stress urinary incontinence (SUI). METHODS: We performed an E-survey among all Dutch gynecologists and urologists who have SUI as focus in daily practice. The questions concerned the common policy and preferred policy. Descriptive statistics were used. RESULTS: Of the 260 targeted specialists, 163 (63%) responded. We found that 37% of the respondents performed standard preoperative urodynamics; in the preferred practice, this would reduce to only 18%. Eighty percent indicated they would operate a patient with a positive stress test without urodynamic SUI, whereas 21% would do this also in case the clinical stress test was negative. Only 9% of the respondents indicated they adapted the choice of the type of sling based on urethral pressure profilometry parameters. CONCLUSIONS: Urodynamics are not routinely performed, and outcomes hardly influence the choice of treatment.

Pelvic organ prolapse and collagen-associated disorders.

INTRODUCTION AND HYPOTHESIS: Pelvic organ prolapse (POP) and other disorders, such as varicose veins and joint hypermobility, have been associated with changes in collagen strength and metabolism. We hypothesized that these various disorders were more prevalent in both POP patients and their family members. METHODS: In this study, the prevalence of various collagen-associated disorders, including POP, was compared between POP patients (n = 110) and control patients (n = 100) and their first and second degree family members. RESULTS: POP patients reported a higher prevalence of varicose veins, joint hypermobility and rectal prolapse and were more likely to have family members with POP as compared to the control group (p < 0.01). In contrast, the family members of the POP group did not report a higher prevalence of collagen-associated disorders compared to the family members of the control group (p = 0.82). CONCLUSIONS: POP and other collagen-associated disorders may have a common aetiology, originating at the molecular level of the collagens.

A randomized trial of training the non-dominant upper extremity to enhance laparoscopic performance.

INTRODUCTION: In laparoscopy, the surgeon's dominant arm will execute difficult tasks with less effort compared to the non-dominant arm. This leads to a relative overuse of muscles on this side. We hypothesized that training the non-dominant arm would improve laparoscopic skills. MATERIAL AND METHODS: At baseline, all participants performed three validated tasks on a virtual reality simulator. After randomization, subjects in the intervention group were assigned training tasks. All these tasks had to be performed with the non-dominant hand. Within a week after a three-week study period, participants performed the same three tasks as before. RESULTS: Twenty-six participants were included, 13 in each group. At baseline, there were no differences between groups on all tested parameters. Compliance to training tasks was good. At the end of three weeks, subjects in both groups showed similar improvement of skills on the non-dominant side. On the dominant side, however, subjects in the training group showed significant better improvement of skills on four out of eight parameters. CONCLUSION: Specific training of the non-dominant upper extremity appears to lead to improvement of skills on the dominant side, a phenomenon known in literature as intermanual transfer of skill learning. To improve laparoscopic skills, bimanual training is recommended.

Sexual function following trocar-guided mesh or vaginal native tissue repair in recurrent prolapse: a randomized controlled trial.

INTRODUCTION: Surgical treatment of pelvic organ prolapse (POP) affects sexual function. Generally, this results in improved sexual function, but deterioration is reported also. AIM: The purpose of this study was to evaluate and compare sexual function in patients with recurrent POP undergoing either a vaginal surgical repair with native tissue or a trocar-guided mesh insertion. METHODS: Sexually active patients randomly assigned to either native tissue repair or trocar-guided mesh insertion, which had completed the pelvic organ prolapse (POP)/urinary incontinence sexual questionnaire (PISQ-12) both at baseline and at 12 months, were included. Total, subscale, and individual question analysis were performed. Logistic regression was used to identify factors that were independently associated with improvement/deterioration in total PISQ-12 scores. MAIN OUTCOME MEASURES: Primary outcome was sexual function at 12 months following surgery, measured by the short form of the pelvic organ prolapse/urinary incontinence sexual questionnaire (PISQ-12). Secondary outcomes were the identification of factors independently associated with change in PISQ-12 scores and changes in individual PISQ-12 question scores. RESULTS: Sixty patients were included; 32 in the mesh arm and 28 in the native tissue arm. At 12 months, PISQ-12 scores were not different in both treatment arms (34.3, standard deviation [SD] 6.7 vs. 34.7, SD 5.7), but improvement was detected in the native tissue arm, whereas PISQ-12 total score remained unchanged in the mesh arm. Deteriorations were observed in the behavioral/emotive subscale and partner-related items in the mesh arm. In the native tissue arm, significant improvements in the physical and partner-related subscales were observed. The presence of mesh exposure was independently associated with deterioration in total PISQ-12 score. CONCLUSION: At 12 months, PISQ-12 scores were not different in either treatment arm, but were affected differently by trocar-guided mesh insertion or by native tissue repair. Mesh exposure was independently associated with deterioration in sexual function.

Prolapse surgery: which technique and when?

PURPOSE OF REVIEW: More answers are nowadays available about certain aspects of pelvic organ prolapse (POP) treatment. In this overview some of those aspects are addressed that were considered important and published in 2010. RECENT FINDINGS: When stress urinary incontinence (SUI) is present concomitant with POP the strategy is still to perform an additional procedure for SUI. If there is no SUI the tendency is only to correct the POP. With masked SUI no firm conclusions can be drawn.The studies that look at mesh for POP provide some careful conclusions. Absorbable biomeshes do not have many benefits over repairs without mesh in the long term. Nonresorbable mesh tends to give better results but also higher complication rates and should be applied with care.A last item is how to perform a sacrocolpopexy. Laparoscopic sacrocolpopexy is a well tolerated but time-consuming and difficult procedure to treat prolapse. Comparison with other conventional techniques is lacking. Robotic surgery has the potential of enhancing the widespread introduction of laparoscopic procedures. SUMMARY: With these findings a better evidence-based choice for surgical technique can be made with regards to POP with or without SUI, the kind of mesh to use and which sacrocolpopexy technique should be chosen.

The correlation between clinical and urodynamic diagnosis in classifying the type of urinary incontinence in women. A systematic review of the literature.

AIMS: To determine the reclassification rate of clinically diagnosed stress, mixed, and urge urinary incontinence after urodynamic investigation. METHODS: A systematic review of the published literature in MEDLINE and EMBASE of clinical trials among women with urinary incontinence. Studies were included in case the diagnosis based on symptoms and/or signs was compared with the diagnosis after urodynamic investigation. RESULTS: Twenty-three articles involving 6,282 women with urinary incontinence met the inclusion criteria. A clinical diagnosis of stress urinary incontinence was reclassified into mixed urinary incontinence in 9% of women and into detrusor overactivity (DO) in 7% of cases. The pooled reclassification rate was highest among patients with symptoms of mixed urinary incontinence, where 46% of the patients had stress urinary incontinence and 21% had DO on urodynamic investigation. The available literature does not allow the identification of the additional value of non-invasive test, such as stress test and voiding diary, accessory to symptoms. None of the studies had therapeutic effects as an outcome measure. CONCLUSIONS: This review of clinical studies shows that the level of agreement between classification based on clinical evaluation and based on urodynamic investigation is poor. Urodynamic observations are regarded as gold standard, but based on the poor correlation, this assumption should be questioned.

Predictors for overactive bladder symptoms after pelvic organ prolapse surgery.

PURPOSE OF REVIEW: To review the predictors for overactive bladder (OAB) symptoms after pelvic organ prolapse (POP) surgery. RECENT FINDINGS: In general, an improvement on OAB can be expected after POP surgery. There are few studies which study the predictors of OAB after POP surgery and most studies had a different perspective. Some studies made conclusions on the basis of multivariate analysis, in which all relevant factors were taken into account. On the basis of these studies, it seems that various factors influence the results on OAB symptoms after POP surgery. Predictors for improvement gave a confusing and sometimes contradicting results. The role of preoperative detrusor overactivity is unclear, improvement as well as persistence of OAB was found. Further, the detrusor opening pressure and maximum flow rate seem to play a role. The absence of bothersome OAB preoperatively was a further predictor for absence of postoperative symptoms. Further, it was found that the individual OAB symptoms had different predictors. All together, the results of the various studies are inconclusive. It is therefore at present essentially still impossible to reliably predict the presence of OAB after POP surgery. SUMMARY: More research is necessary on the predictors for OAB after POP surgery.