Predictors of early postoperative voiding dysfunction and other complications following a midurethral sling

An assessment of the relationship between urethral hypermobility as measured by ultrasound and the symptoms of stress urinary incontinence in primiparous women 9-18 months postpartum

Aim

The aim of the study was to estimate the relationship between bladder neck hypermobility as assessed by ultrasound and the occurrence of stress urinary incontinence as measured with the UDI-6 questionnaire in primiparous women 9-18 months postpartum.

Materials and methods

The study included 100 women 9-18 months after their first delivery, 19% of whom (study group) presented with urethral hypermobility. Ultrasound was used to determine the position and mobility of the bladder neck in order to assess the urethral hypermobility. A vector of ≥15 mm was defined as urethral hypermobility. Symptoms of stress urinary incontinence were assessed using question 3 of the UDI-6 questionnaire, in which the presence of symptoms was defined as a response rated from 1 to 4.

Results

We demonstrated a statistically significant relationship between urethral hypermobility and the symptoms of stress urinary incontinence with a statistical significance level of p <0.002.

Conclusions

Stress urinary incontinence is a common disorder in women, the pathophysiology of which is not fully understood. It has adverse effects on the quality of life, perception of one's own body and sexual function. Impairment of urethral fixation may play an important role in the pathophysiology of this common form of urinary incontinence. The study showed that urethral hypermobility, as assessed by ultrasound, contributes to stress urinary incontinence, as measured with the UDI-6 score. Although stress urinary incontinence is a multifactorial disorder influenced by anatomical changes and congenital anatomical features, it is easily diagnosed. Suburethral slings are an effective surgical technique; however, the incidence of postoperative voiding dysfunction or recurrent stress urinary incontinence is 10-20%. Therefore, an assessment of anatomical changes in stress urinary incontinence may help individualize the surgical strategy.

Safety and Efficacy Report for the Use of Poly-4-Hydroxybutyrate as a Retropubic Mid-Urethral Sling (MUS) for Stress Urinary Incontinence: A Prospective 24 Months Follow-Up of New Poly-4-Hydroxybutyrate TephaFlex SUI Bioresorbable MUS

STUDY OBJECTIVE

To investigate the feasibility and safety of the retropubic mid-urethral sling (MUS) procedure with a resorbable mesh implant made of poly-4-hydroxybutyrate (P4HB).

DESIGN

A prospective clinical cohort study with 24 months follow-up.

SETTING

A tertiary academic hospital.

PATIENTS

Seventeen women with moderate to severe stress urinary incontinence (SUI).

INTERVENTIONS

A retropubic MUS procedure with P4HB sling.

MEASUREMENTS AND MAIN RESULTS

Seventeen women underwent an uncomplicated MUS procedure with a new sling made of resorbable P4HB. Following safety criteria, there has been no need to stop the study before 24 months' end point. Three serious adverse events were reported during follow-up: (1) inability to void urine after 1 week postsurgery, (2) a hysterectomy and bilateral oophorectomy performed due to a precancerous endometrial lesion at 16 months after initial MUS procedure and (3) exposed mesh with a part of device sheath left behind. These participants underwent an uncomplicated reintervention with no additional and/or permanent harm. Reinterventions because of failure of cure contained 3 second MUS procedures and one admission of urethral bulking agent. Seventy-six percent and 47 percent of patients were objectively cured of SUI at 12 and 24 months, respectively.

CONCLUSIONS

Preliminary evidence suggests that a sling made of P4HB can be safely used for MUS procedures and could be an alternative for permanent polypropylene slings in patients that prefer the use of nonpermanent material.

Pass or Fail? Postoperative Active Voiding Trials in an Enhanced Recovery Program

IMPORTANCE

Pelvic reconstructive surgery is often associated with transient postoperative voiding dysfunction.

OBJECTIVE

This study aimed to compare postoperative active voiding trial (AVT) outcomes before and after implementation of an enhanced recovery program (ERP) for women undergoing pelvic reconstructive surgery. In addition, risk factors for postoperative urinary retention were identified.

STUDY DESIGN

We retrospectively identified patients undergoing inpatient vaginal or robotic pelvic reconstructive surgery before and after implementation of an ERP at our institution. Demographics, operative and postoperative details, and AVT outcomes were collected. Primary outcome was AVT failure. Variables associated with increased risk of AVT failure were identified using multivariate analysis.

RESULTS

Three hundred seventeen patients were included-75 pre-ERP and 242 ERP. There was no difference in AVT failures between pre-ERP and ERP groups (21.3% vs 21.9%, P = 0.92). The AVT failures were highest among those with abnormal preoperative postvoid residual volume (PVR ≥100 mL, 25.9% vs 12.2%, P = 0.01) and those who underwent an incontinence procedure (midurethral sling or Kelly plication, 30.4% vs 16.9%, P = 0.01). Compared with a reference procedure (total vaginal hysterectomy [TVH]), the following procedures were associated with statistically significant higher odds ratios (ORs) of AVT failure: TVH with incontinence procedure (OR, 15.0; confidence interval [CI], 4.58-48.9; P < 0.001), TVH with anterior repair (OR, 4.98; CI, 1.93-12.9; P = 0.001), and robotic sacrocolpopexy (OR, 3.6; CI, 1.18-11.2; P = 0.02).

CONCLUSIONS

Postoperative AVT failure incidence did not differ pre- and post-ERP intervention. Abnormal preoperative PVR was associated with failed postoperative voiding trial. Concomitant incontinence procedures and/or anterior colporrhaphy were associated with increased incidence of voiding trial failure regardless of ERP cohort.

Effects of Preoperative Gabapentin on Clinical Outcomes After Outpatient Midurethral Sling Placement

OBJECTIVES

This study aimed to evaluate transient urinary retention in women undergoing outpatient midurethral sling placement who received preoperative gabapentin (treated) versus those who did not (untreated). Secondary outcomes included unexpected admission rates, analgesic usage, time to discharge, and pain.

METHODS

This was a retrospective cohort study including women who underwent outpatient midurethral sling placement from 2015 to 2019. Exclusion criteria included suprapubic catheter placement, planned overnight admission, abnormal preoperative postvoid residual volume, and prolonged postoperative catheterization. Logistic regression was performed to evaluate gabapentin usage and urinary retention after adjusting for patient characteristics.

RESULTS

Three hundred two women met the inclusion criteria, with 19.5% experiencing urinary retention after midurethral sling placement. Women older than 65 years were more likely to have urinary retention than those aged 18-65 years (29.8% vs 17.6%, P = 0.054). Of treated participants, 26% had urinary retention versus 18% of untreated participants (P = 0.162). Adjusting for age, parity, pain, operative time, blood loss, sling type, analgesic, scopolamine patch, or hemostatic agent use, treated participants had 72% higher odds of urinary retention (adjusted odds ratio, 1.72; 95% confidence interval, 0.88-3.38; P = 0.113). There was no difference in unexpected admission, analgesic usage, time to discharge, or pain between groups.

CONCLUSIONS

One of 5 women had urinary retention after outpatient midurethral sling placement. Although no statistically significant difference was found in urinary retention between groups, the odds of urinary retention in the treated group were increased. Because there was no difference in pain, analgesic usage, or time to discharge between groups, investigation regarding gabapentin use for outpatient urogynecologic surgery is needed.

Preoperative abdominal straining in uncomplicated stress urinary incontinence: is there a correlation with voiding dysfunction and de novo overactive bladder after mid-urethral sling procedures?

Objectives:

To evaluate the role of preoperative abdominal straining in predicting de novo overactive bladder (OAB) and voiding dysfunction in female patients undergoing suburethral taping by trans-obturator approach (TVT-O) for uncomplicated stress urinary incontinence (SUI).

Methods:

Data from patients who underwent TVT-O surgery for SUI were retrospectively analyzed. Inclusion criteria included: history of pure SUI. Exclusion criteria included previous surgery for urinary incontinence, pelvic radiation, pelvic surgery within the last 3 months, and anterior or apical pelvic organ prolapse (POP) ⩾ +1 cm. Voiding dysfunction has been defined through symptoms and or urodynamics (UDS) signs. Accordingly, patients were divided into group A and group B according to the presence of abdominal straining during UDS. Patients were observed clinically and with UDS at a 3-year follow-up.

Results:

A total of 192 patients underwent TVT-O surgery for uncomplicated SUI. Preoperative abdominal straining was identified in 60/192 patients (Group A: 31.2% vs Group B: 68.8%). Qmax was not different in the two groups (Group A: 19.5 vs Group B: 20.5 mL/s, p = 0.76). Demographics was similar for the two groups regarding age, parity. At 3-year follow-up, voiding dysfunction was reported in Group A: 9 and Group B: 8 patients (p = 0.056), de novo OAB was significantly reported in Group A: 23 and Group B: 26 patients (p = 0.007).

Conclusion:

Preoperative abdominal straining was found to be related to a significant incidence of de novo OAB. A significant correlation was not assessed for postoperative voiding dysfunction. Further studies may better define the impact of preoperative abdominal straining.

Tamsulosin vs placebo to prevent postoperative urinary retention following female pelvic reconstructive surgery: a multicenter randomized controlled trial

BACKGROUND

Postoperative urinary retention is common after female pelvic reconstructive surgery. Alpha receptor antagonists can improve dysfunctional voiding by relaxing the bladder outlet and may be effective in reducing the risk of postoperative urinary retention.

OBJECTIVE

This study aimed to determine whether tamsulosin is effective in preventing postoperative urinary retention in women undergoing surgery for pelvic organ prolapse.

STUDY DESIGN

This was a multicenter, double-blind, randomized controlled trial between August 2018 and June 2020, including women undergoing surgery for pelvic organ prolapse. Patients were excluded from recruitment if they had elevated preoperative postvoid residual volume, history of postoperative urinary retention, or a contraindication to tamsulosin. Those who experienced cystotomy were excluded from analysis. Participants were randomized to a 10-day perioperative course of tamsulosin 0.4 mg vs placebo, beginning 3 days before surgery. A standardized voiding trial was performed on postoperative day 1. The primary outcome was the development of postoperative urinary retention, as defined by the failure of the voiding trial or subsequent need for catheterization to empty the bladder. Secondary outcomes included the rate of urinary tract infection and the impact on lower urinary tract symptoms as measured by the American Urological Association Symptom Index.

RESULTS

Of 119 patients, 57 received tamsulosin and 62 received placebo. Groups were similar in regard to demographics, preoperative prolapse and voiding characteristics, and surgical details. Tamsulosin was associated with a lower rate of postoperative urinary retention than placebo (5 patients [8.8%] vs 16 patients [25.8%]; odds ratio, 0.28; 95% confidence interval, 0.09-81; P=.02). The number needed to treat to prevent 1 case of postoperative urinary retention was 5.9 patients. The rate of urinary tract infection did not differ between groups. American Urological Association Symptom Index scores significantly improved after surgery in both groups (median total score, 14 vs 7; P<.01). Scores related to urinary stream improved more in the tamsulosin group than in placebo (P=.03).

CONCLUSION

In this placebo-controlled trial, tamsulosin use was associated with a reduced risk of postoperative urinary retention in women undergoing surgery for pelvic organ prolapse.

Narrow Vagina as a Predictor of Obstructive Voiding Dysfunction after Transobturator Sling Surgery

BACKGROUND

Voiding dysfunction (VD) is a potential complication after female midurethral sling operations.

OBJECTIVES

Our goal was to assess the rate of obstructive VD after -transobturator tension-free tape (TOT) procedures and to find perioperative risk factors (RFs) predicting postoperative voiding problems.

METHODS

We have retrospectively evaluated the perioperative data of 397 women who underwent TOT operations. Significant post-void residual (PVR) (>50 mL) was considered as the primary (objective) end point of the study, the voiding difficulty as the secondary (subjective) 1. First univariate analysis and then multivariate logistic regression were performed, with a 5% significance level.

RESULTS

Significant PVR was present in 51 (12.8%) women; catheterization was needed in 21 (5.3%) and reoperation in 3 (0.8%) cases. Seventy women (17.6%) experienced postoperative voiding difficulty. Narrow vagina (<2 cm), older age >70 years, and preoperative voiding difficulty were independent RFs for significant PVR (odds ratio: 5.07, 2.14, 5.38, respectively, p < 0.05). Preoperative overactive bladder syndrome and previous pelvic organ prolapse surgery were considered independent RFs for postoperative voiding difficulty.

CONCLUSIONS

Older age, narrow vagina, or preoperative voiding difficulty increases the chance for significant postoperative PVR. These patients should be chosen and counseled appropriately.

Cost-effectiveness of Routine Postoperative Retrograde Voiding Trials Following Pelvic Surgeries

OBJECTIVE

The aim of this study was to evaluate the cost-effectiveness of retrograde voiding trials in the management of postoperative voiding dysfunction.

METHODS

We developed a disease simulation model to assess under which conditions routine retrograde voiding trial is the optimal strategy in terms of cost per quality-adjusted life-year and cost per case of chronic voiding dysfunction avoided. We varied the incidence of voiding dysfunction between 2% and 60%. We discounted future costs and utilities at 3% annually. We conducted 1- and 2-way sensitivity analyses on uncertain model parameters.

RESULTS

The lifetime analysis showed that when the incidence of postoperative voiding dysfunction exceeded 12.2%, retrograde voiding trials were cost-effective, assuming a willingness-to-pay (WTP) for health of $100,000/quality-adjusted life-year. When the incidence exceeded 31.1%, retrograde voiding trials became the dominant strategy (less costly and more effective). For a simple hysterectomy with voiding dysfunction incidence of approximately 10%, lifetime cost is $230,069/case of chronic voiding dysfunction avoided; for a midurethral sling with voiding dysfunction incidence of approximately 20%, lifetime cost is $60,449/case avoided. Sensitivity analyses showed that WTP for health, the incidence of presentation to the emergency department (ED) for urinary retention and the incidence of chronic urinary retention following treatment in the ED had the greatest impact on the cost-effectiveness results.

CONCLUSIONS

Routine retrograde voiding trials following pelvic surgery can be cost-effective compared with expectant management when the incidence of voiding dysfunction exceeds 12.2%. These results were sensitive to WTP for health, incidence of ED visits for urinary retention, and incidence of chronic urinary retention following ED visits.

The impact of midurethral sling surgery on the development of urinary tract infections

PURPOSE/OBJECTIVE

To measure the impact of the placement of a midurethral sling (MUS) on development of urinary tract infections (UTI) in women with stress urinary incontinence.

METHODS

This is an analysis of a large managed care organization MUS database from 2005 to 2016. The database was queried to identify UTI and diagnosis of recurrent UTI. The primary outcome was the UTI rate after MUS. Secondary outcomes included the recurrent UTI rate and rates of UTI over time.

RESULTS

Over the study period, 13,404 MUS were performed. In the 12 postoperative months, 23% of patients developed a UTI, while 4% developed a de novo recurrent UTI diagnosis. UTIs were most frequently diagnosed in the 1st month, with the 7th postoperative day the most common. Predictors of UTI development included increased age (OR 3.69 [95% CI 2.58-5.26]), being diabetic (OR 1.43 [95% CI 1.28-1.60]), and having urinary retention requiring prolonged catheterization (OR 2.45 [95% CI 2.11-2.85]). UTIs were less likely to be diagnosed in those with transobturator MUS (OR 0.85 [95% CI 0.78-0.94]). Patients who developed a UTI were more likely to have a reoperation (p = 0.0147), including a reoperation for mesh revision/removal (p = 0.0287), and recurrent SUI (p = 0.0394). Patients who developed a UTI were more likely to develop postoperative de novo urgency urinary incontinence (UUI) (p < 0.0001).

CONCLUSION

Patients are at risk of UTI and rUTI after MUS. Risk of developing UTIs decreases with time. Predictors of developing UTI can help surgeons in the care of patients after MUS.

Second-Line Surgical Management After Midurethral Sling Failure

Currently, the midurethral sling (MUS) is widely used as a standard treatment in patients with stress urinary incontinence (SUI). Several studies have reported the failure rate of MUS to be approximately 5%–20%. In general, sling failure can be defined as persistent SUI after surgery or a temporary improvement in incontinence followed by recurrence. Failure is also often considered to include cases requiring secondary surgery due to mesh exposure, postoperative voiding difficulty, de novo urgency/urge incontinence, and severe postoperative pain. Because of the lack of large-scale, high-quality research on this topic, no clear guidelines exist for second-line management. To date, transurethral bulking agent injections, tape shortening, repeat MUS, pubovaginal sling (PVS) using autologous fascia, and Burch colposuspension are available options for second-line surgery. Repeat MUS is the most widely used second-line surgical method at present. Bulking agent injections have lower durability and efficacy than other treatments. Tape shortening demonstrates a relatively low success rate, but comparable outcomes if the period from first treatment to relapse is short. In patients with intrinsic sphincter deficiency, PVS and retropubic (RP) MUS can be considered first as second-line management because of their higher success rate than other treatments. When revision or reoperation is required due to prior mesh-related complications, PVS or colposuspension, which is performed without a synthetic mesh, is appropriate for second-line surgery. For patients with detrusor underactivity, a readjustable sling can be a better option because of the high risk of postoperative voiding dysfunction in PVS or RP slings.

The role of perioperative medications in urinary retention following midurethral sling

AIMS

Postoperative urinary retention (PUR) is a known complication of midurethral sling (MUS) placement. The use of certain perioperative medications may influence the risk of this complication. This study aimed to investigate the association of perioperative medications with urinary retention after MUS.

METHODS

This was a retrospective study of women undergoing MUS placement for stress urinary incontinence by a fellowship-trained urologic surgeon between 2015 and 2018, under approval by the Institutional Review Board. Both retropubic and transobturator approaches were included. All patients underwent an active void trial following surgery. Intraoperative medications given by the anesthesia team were retrospectively noted. The Fisher's exact test was used to compare the association of PUR with categorical variables.

RESULTS

A total of 82 patients were included, 17 (21%) of whom failed postoperative void trial due to urinary retention. Of 25 patients receiving perioperative scopolamine, 40% failed the postoperative void trial, compared to 12% of patients not receiving scopolamine (p = .048). Groups were then stratified based on scopolamine use due to the observed independent association with PUR. Subgroup analysis revealed a stronger association of postoperative retention with scopolamine in patients undergoing concomitant prolapse surgery. Notably, retention rate and scopolamine use were similar whether patients underwent sling placement alone or in combination with prolapse surgery. Rate of retention was also higher for retropubic versus transobturator slings (36% vs. 9%; p = .005).

CONCLUSIONS

Perioperative scopolamine may be associated with an increased risk of postoperative urinary retention following MUS, especially in the setting of a concomitant prolapse surgery.

Predictors of delayed postoperative urinary retention after female pelvic reconstructive surgery

INTRODUCTION AND HYPOTHESIS

Risk factors can be used to determine what patients will develop delayed postoperative urinary retention after female pelvic reconstructive surgery.

METHODS

A case-control study was performed including all female pelvic reconstructive surgeries necessitating a voiding trial. All patients passed their previous voiding trial. Cases had an acute encounter for urinary retention. Controls did not have acute postoperative urinary retention. Cases and controls were stratified based on procedure. Demographics, medical/surgical histories, voiding symptoms, urodynamic testing, and intraoperative data were collected. Cases were matched to controls in a 1:3 ratio. Mann-Whitney U and chi-square tests were used for univariate analyses; logistic regression was used to determine predictors of delayed postoperative urinary retention (DPOUR).

RESULTS

A total of 1219 patients underwent pelvic reconstructive surgery that met eligibility; 51 cases of DPOUR (4.3%) were identified and matched with 153 controls without postoperative urinary retention. Of the procedures performed, 41.2% had prolapse surgery, 10.3% had incontinence surgery, and 48.5% had both prolapse and incontinence surgery. There were no differences between cases and controls in age, race, prior surgery, medical comorbidities, prolapse stage ≥ 3, voiding symptoms, and surgical characteristics. Cases had a lower BMI than controls (p < 0.001). There was no difference in preoperative urodynamic variables. Cases had lower percent voided volume on their last voiding trial than controls (90.2% ± 28.6% vs. 110.7% ± 39.5%, respectively; p = 0.001); however, clinically we consider a voided volume of two-thirds or greater of the instilled volume to be a normal result.

CONCLUSIONS

DPOUR is an uncommon postoperative event. Demographic and clinical factors and urodynamic findings were unable to predict DPOUR. Percent voided volume on voiding trial was greater in controls.

Could the postoperative residual of urine predict the outcome of TVTOmidurethral sling procedure in female patients?

OBJECTIVE

To assess if the amount of postoperative postvoid residual of urine that is within the normal range (less than 100 mls) could predict the outcome of TVTO (Tension -free vaginal tape obturator) procedure.

STUDY DESIGN

Second Department of Obstetrics and Gynecology, Aretaieio Hospital, University of Athens, Greece. Patients that had been submitted to TVTO procedure between 2013 and 2017 were reviewed and outcome was assessed.The follow up assessment included cough stress test, the Patient Satisfaction Questionnaire (PSQ), the Urinary Distress Inventory-6 (UDI-6) and the Patient Global Impression of Improvement (PGI-I) questionnaire.

RESULTS

The mean follow-up was 3.7 years (+1.35 years). Forty eight patients (40.3%) had only a TVTO procedure. Forty three patients (36.1%) had a TVTO procedure combined with anterior colporrhaphy. Twenty eight patients (23.6%) underwent a TVTO procedure and anterior colporrhaphy and posterior colpoperineorrhaphy. According to cough stress test 88% patients (105/119) were cured having a negative cough stress test. Using logistic regression analysis it was found that patient's age (p = 0.78), postoperative postvoid residual of urine ( = 0.24) or day of catheter removal (p = 0.22) had no statistically significant correlation with the medium term outcome of TVTO procedure. Also, regression analysis shows that patients' Body Mass Index (BMI) has negative correlation to the postoperative outcome.

CONCLUSION(S)

PVR < 50 mls appears to be related with successful medium term outcome after TVTO procedure. Also, patients' (BMI) has negative correlation to the postoperative outcome.

Intraoperative and early postoperative complications in women with stress urinary incontinence treated with suburethral slings: a randomised trial

Introduction

The midurethral sling has become the current standard for the treatment of female stress urinary incontinence.

Aim

To assess intraoperative complications, early post-operative complications as well as the efficacy of tension-free vaginal tape: retropubic and trans-obturator tape procedures.

Material and methods

The analysis involved 91 tension-free vaginal tape (TVT) and 60 transobturator tape (TOT) procedures. Both groups were comparable in terms of patient characteristics, urodynamic results, and preoperative quality of life (QoL) assessment. The complications were registered, and the effectiveness of the procedures was assessed subjectively by the patients at 1-, 3-, 6- and 12-month follow-up.

Results

A significantly lower risk of intraoperative and early post-operative complications was noted in the case of TOT procedures (OR = 0.35%, 95% CI: 0.13–0.92). Moreover, regardless of the method used, patients with two or more vaginal deliveries in their history had a reduced risk of complications, as compared to nulliparas and uniparas (OR = 0.38%, 95% CI: 0.16–0.91). Previous gynaecological surgery and old age increase the risk of complications with borderline significance (OR = 2.5, 95% CI: 0.97–6.3; OR = 2.3, 95% CI: 0.95–5.5 respectively). The rates of cure, improvement and failure were similar in both groups, as was the significant positive change in post-operative life quality.

Conclusions

TVT and TOT procedures are characterised by a high cure rate and improvement in the post-operative quality of life. However, it seems that the transobturator approach should be the preferred method of treatment of SUI due to the reduced risk of complications, shorter procedure time, and lower intraoperative blood loss.

Readmission and reoperation after midurethral sling

INTRODUCTION AND HYPOTHESIS

We aimed to determine the rate of readmission and reoperation for patients undergoing midurethral sling (MUS) placement for stress urinary incontinence (SUI).

METHODS

The American College of Surgeons National Surgical Quality Improvement Program (NSQIP) database was queried to identify all isolated MUS placed from 2012 through 2015 using the Current Procedural Terminology 4 (CPT-4) code for MUS with or without cystoscopy (57,288 ± 52,000). The cohort was then reviewed for unplanned, related readmissions and reoperations within 30 days of MUS placement.

RESULTS

Isolated MUS was placed in 9910 patients. Fifty-eight (0.59%) patients were readmitted and 81 (0.82%) had reoperation. The most common indications for readmission were related to the urinary tract, i.e., urinary retention (27.6%), non-surgical-site-related infection (15.5%), and medical related issues (15.5%) The most common indications for reoperation were urinary tract (60.5%), gastrointestinal (7.4%), and gynecologic, i.e., examination under anesthesia (6.2%). Body mass index (BMI) was less (p = 0.001), and operative time (p = 0.014) and length of stay (LOS) (p = 0.001) longer in patients who were readmitted. Those who underwent reoperation had longer LOS than those who did not have reoperation (p < 0.001). Upon multivariate analysis, BMI <25 (all p < 0.05) and longer LOS maintained statistical significance as risk factors for those who experienced readmission or reoperation (p = 0.0406, p < 0001).

CONCLUSIONS

Isolated MUS placement has low 30-day readmission and reoperation rates. Increased LOS was associated with readmission, while increased LOS and BMI <25 were associated with reoperation within 30 days.

Transobturator midurethral sling: What should patients expect after surgery?

INTRODUCTION AND HYPOTHESIS

Midurethral sling (MUS) surgeries are minimally invasive procedures; however, they are not free of postoperative complications. The aim of the study was to assess the occurrence of lower urinary tract symptoms (LUTS) (urgency, nocturia, frequency, splitting/spraying, hesitancy, terminal dribbling, and subjective feeling of postvoid residual) in patients suffering from stress (SUI) or mixed (MUI) urinary incontinence with a predominant SUI component before and after transobturator MUS placement.

METHODS

The study group consisted of 88 women with SUI and 18 with MUI who underwent transobturator MUS. All participants were questioned with a self-developed questionnaire before and after surgery regarding the presence of LUTS.

RESULTS

Seven days after surgery, 62 patients (58.5%) noted voiding and postmicturition symptoms, whereas 67 (63.2%) reported problems in storage. The more commonly reported LUTS at week 1 after surgery were urgency (52.8%), splitting/spraying (41.5%), and feeling of incomplete bladder emptying (34.0%). Patients perceived that splitting/spraying was the most bothersome. After 6 months, the most common LUTS reported were hesitancy (14.1%), terminal dribbling (10.4%), and splitting/spraying (9.4%). We noticed a decrease in the number of urgency episodes >2.7 times (p < 0.001) compared with baseline. After 6 months, 97 (91.5%) patients reported the lack of incontinence episodes.

CONCLUSIONS

A vast majority of patients after MUS suffer from LUTS in the early postoperative period; however, the majority of undesired symptoms resolve spontaneously within the first 6 months postsurgery.

The Effect of Preoperative Phenazopyridine on Urinary Retention Following Midurethral Sling

OBJECTIVE

The aim of this study was to determine the effect of preoperative oral phenazopyridine on short-term voiding dysfunction in patients undergoing a retropubic midurethral sling.

METHODS

We conducted a retrospective cohort study in subjects undergoing a retropubic midurethral sling comparing those who received preoperative oral phenazopyridine with those who did not. We included all women who underwent a retropubic midurethral sling without concomitant procedures under general anesthesia at our institution. Slings were placed by either suprapubic or transvaginal approach, per surgeon's preference. Demographics and intraoperative data on preoperative dose of phenazopyridine and medications linked to voiding dysfunction were captured.

RESULTS

One hundred seventy-four subjects were identified. Twenty-five subjects failed to meet inclusion and exclusion criteria and were excluded, and 149 subjects comprised the final groups. Eighty-two subjects (55.03%) received phenazopyridine, and 67 (44.97%) did not. Most subjects received a 200-mg dose (97.6%). Except for surgical approach, both groups receiving and not receiving phenazopyridine had similar demographic characteristics. Eighty-eight percent of the subjects who received phenazopyridine passed the voiding trial versus 73.1% (odds ratio, 2.98; 95% confidence interval, 1.23-7.17). After adjusting for medications, estimated blood loss, number of trocar passages, or bladder perforation, the patients receiving phenazopyridine were still more likely to pass the postoperative voiding trials compared with those who did not (odds ratio, 2.97; 95% confidence interval, 1.10-7.98).

CONCLUSIONS

Our findings suggest that the preoperative administration of phenazopyridine may improve postoperative voiding function after a retropubic midurethral sling. Additional prospective trials are needed to confirm this finding.