Mesh contraction: myth or reality?

Effect of anterior vaginal wall prolapse repair by modified transvaginal mesh surgery: a retrospective cohort study

OBJECTIVE

To explore clinical outcomes and complications of modified Transvaginal mesh (M-TVM) for advanced anterior vaginal wall prolapse in 1 year follow-up.

METHODS

574 patients underwent TVM surgeries from 2019 to 2020 were collected and divided into TVM group and M-TVM group, all preoperative and postoperative data was obtained and compared between the two groups.

RESULTS

285 women were involved eventually, including 181 in TVM group and 104 in M-TVM group. No significant difference of general conditions was found between these two groups. After long-term follow-up, patients in TVM group were more likely to suffer from pelvic pain than M-TVM group (P = 0.046). Meshes seemed much wider in M-TVM group (4.5 ± 0.69 cm) than in TVM group (3.0 ± 0.91 cm). No matter TVM or M-TVM, surgeries can significantly change point Aa and Ba when compared to preoperative data. Compared to TVM group, point C and D were significant changed in patients in M-TVM group after surgery (P < 0.001) CONCLUSION: M-TVM is a commendable procedure that can significant correct anterior prolapse with mesh extended wider, and also supply stable apical support at the same time.

Ultrasound evaluation of anterior transvaginal mesh for pelvic organ prolapse: correlation to 5-year clinical outcomes

Introduction and hypothesis

Vaginal prolapse mesh may effectively restore vaginal anatomy. The aim of this study was to investigate how the in vivo mesh position correlates to clinical outcomes.

Methods

Seventy-one women operated on using Uphold mesh for apical pelvic organ prolapse (POP-Q, C ≥ stage II) were examined 5 years after surgery by introital-perineal 2D ultrasound in a midsagittal plane at rest and Valsalva. The horizontal line and pubis symphysis were considered the reference for all measures. Ultrasound measures were statistically compared to clinical outcomes: POP-Q, Pelvic Floor Distress Inventory (PFDI-20) and subscales [Pelvic Organ Distress Inventory (PODI-6), and Urinary Distress Inventory (UDI-6)] and the VAS scale for pain.

Results

Original mesh length was preserved by 86% and correlated to improved pain as estimated by VAS scale (r 0.321). Valsalva was associated with a lowering of the superior and inferior mesh margins by 7.3 and 6.1 mm, respectively (p < 0.001) but a reduction of total mesh length by only 1 mm (30.2 ± 5.2 to 29.2 ± 4.7 mm, p < 0.001). Mobility of the anterior vaginal wall (bladder neck and midurethra) at Valsalva was parallel to downward movement of the mesh inferior margin (r 0.346 and 0.314) but inversely correlated to total UDI-6 (r − 0.254 and − 0.263). Mobility of the midurethra was inversely correlated to bladder emptying (PFDI-20 Question 19, r − 0.245).

Conclusions

Five years after surgery, preserved original length of the mesh with apical support was correlated to improved anatomical and patient-reported outcomes. Mesh support to the vaginal apex was associated with improved bladder emptying and total urinary distress outcomes but not stress urinary incontinence.

Pelvic organ prolapse meshes: Can they preserve the physiological behavior?

Implants for the cure of female genital prolapse still show numerous complications cases that sometimes have dramatic consequences. These implants must be improved to provide physiological support and restore the normal functionalities of the pelvic area. Besides the trend towards lighter meshes, a better understanding of the in vivo role and impact of the mesh implantation is required. This work investigates the mechanical impact of meshes after implantation with regards to the behavior of the native tissues. Three meshes were studied to assess their mechanical and biological impact on the native tissues. An animal study was conducted on rats. Four groups (n = 17/group) underwent surgery. Rats were implanted on the abdominal wall with one of the three polypropylene knitted mesh (one mesh/group). The last group served as control and underwent the same surgery without any mesh implantation. Post-operative complications, contraction, mechanical rigidities, and residual deformation after cyclic loading were collected. Non-parametric statistical comparisons were performed (Kruskal-Wallis) to observe potential differences between implanted and control groups. Mechanical characterization showed that one of the three meshes did not alter the mechanical behavior of the native tissues. On the contrary, the two others drastically increased the rigidities and were also associated with clinical complications. All of the meshes seem to reduce the geometrical lengthening of the biological tissues that comes with repetitive loads. Mechanical aspects might play a key role in the compatibility of the mesh in vivo. One of the three materials that were implanted during an animal study seems to provide better support and adapt more properly to the physiological behavior of the native tissues.

Ultrasound imaging of slings and meshes in urogynecology

Imaging is used increasingly in urogynecology. One of the main applications is in the assessment of synthetic implants. Ultrasound is particularly useful for this purpose as most such implants appear highly echogenic on ultrasound but are not visible using other imaging techniques. The worldwide success of synthetic mid-urethral slings, introduced in the late 90s, led to the subsequent introduction of transvaginal mesh in 2003-2004. Widespread use of synthetic implants for both urinary incontinence and prolapse has caused a rise in implant-related complications and increasing negative publicity and litigation, with many products removed from the market. It is not surprising that there is increasing demand for the assessment and evaluation of sling and mesh implants using imaging. This review article discusses the role of translabial/transperineal ultrasound in the evaluation of synthetic implants used in the treatment of urinary incontinence and pelvic organ prolapse. The discussion focuses on those applications of the technique that are useful for surgeons dealing with patients after mesh and/or sling placement. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.

Prospective ultrasonographic follow-up of transvaginal lightweight meshes: a 1-year multicenter study

INTRODUCTION AND HYPOTHESIS

The use of new lightweight meshes in pelvic organ prolapse (POP) surgery may reduce complications related to mesh retraction (chronic pain, dyspareunia, and mesh exposure). The aim of this study was to investigate changes in the area and position of Uphold Lite™ mesh 6 weeks and 12 months after anterior and/or apical prolapse repair.

METHODS

This observational prospective multicenter study included patients who had undergone transvaginal surgery for symptomatic POP-Q stage ≥ II anterior and/or apical compartment prolapse with placement of Uphold Lite mesh. The dimensions and position of the mesh were evaluated at 6 weeks and 12 months by ultrasonography. Correlations between ultrasonographic mesh characteristics and POP recurrence were analyzed.

RESULTS

Fifty evaluable women with an average age of 66.8 years were included. No statistically significant difference in mesh area was found between week 6 and month 12 postoperatively, either at rest (1746.92 vs. 1574.48 mm²; p = 0.15) or on Valsalva (1568.81 vs. 1542.98 mm²; p = 0.65). The ROC-AUC of the distance between the mesh and the bladder neck (M-BN) at 6 weeks for predicting cystocele recurrence at 12 months was 0.764 (95% CI 0.573-0.955) at rest and 0.724 (95% CI 0.533-0.916) on Valsalva. An M-BN distance > 12.5 mm could predict cystocele recurrence at month 12 with a sensitivity of 80% and a specificity of 69%.

CONCLUSIONS

Ultrasonographic measurements of the Uphold Lite™ mesh appear to remain stable between 6 weeks and 12 months postoperatively. M-BN distance correlates with cystocele recurrence. These results appear to confirm the value of ultrasound in mesh evaluation.

3D reconstruction of MR-visible Fe3 O4 -mesh implants: Pelvic mesh measurement techniques and preliminary findings

AIMS

To develop MR-based measurement technique to evaluate the postoperative dimension and location of implanted magnetic resonance (MR)-visible meshes.

METHODS

This technique development study reports findings of six patients (A-F) with cystoceles treated with anterior vaginal MR-visible Fe₃ O₄ -polypropylene implants. Implanted meshes were reconstructed from 3 months and/or 1 year postsurgical MR-images using 3D Slicer®. Measurements including mesh length, distance to the ischial spines, pudendal, and obturator neurovascular bundles and urethra were obtained using software Rhino® and a custom Matlab® program. The range of implanted mesh length and their placements were reported and compared with mesh design and implantation recommendations. With the anterior/posterior-mesh-segment-ratio mesh shrinkage localization was evaluated.

RESULTS

Examinations were possible for patients A-D 3 months and for A, C, E, and F 1 year postsurgical. The mesh was at least 40% shorter in all patients 3 months and/or 1 year postoperatively. A, B showed shrinkage in the anterior segment, D, E in the posterior segment (Patients C, F not applicable due to intraoperative mesh trimming). Patient E presented pain in the area of mesh shrinkage. In Patient C posterior mesh fixations were placed in the iliococcygeal muscle rather than sacrospinous ligaments. Arm placement less than 20 mm from the pudendal neurovascular bundles was seen in all cases. The portion of the urethra having mesh underneath it ranged from 19% to 55%.

CONCLUSIONS

MRI-based measurement techniques have been developed to quantify implanted mesh location and dimension. Mesh placement variations possibly correlating with postoperative complications can be illustrated.

Ultrasound in the assessment of pelvic organ prolapse

Imaging is increasingly being used in urogynaecology. Because of low cost and universal availability, ultrasound (US) is the most commonly used diagnostic modality, which allows the observation of manoeuvres such as Valsalva and pelvic floor muscle contraction in real time. The ability to see beyond surface anatomy is particularly important in the posterior compartment and in obstructed defecation where this method may replace defecation proctography. Imaging is especially useful in the form of 3D/4D multiplanar and tomographic translabial US, as these modalities give access to the axial plane and the levator ani. This allows assessment of both avulsion, i.e. major maternal birth trauma, and hiatal overdistension, i.e. ballooning. Both are major risk factors for both prolapse and prolapse recurrence. This review will outline current clinical utility, introduce recent research in the respective field and provide an overview of likely future utility of imaging in the investigation of pelvic organ prolapse.

Role of ultrasound imaging in advancing treatment of female patients with pelvic floor mesh complications

Application of vaginal mesh for stress urinary incontinence has seen widespread use due to its relatively short operative time in combination with its efficacy in treatment. However, vaginal mesh is not without its drawbacks and can lead to mesh erosion or extrusion, infection, dyspareunia, and recurrence of incontinence. Vaginal mesh complications can lead to feelings of hopelessness, isolation, shame, and emotional distress. Furthermore, failure to identify and address these complications in a timely manner can be permanently damaging to patient health. It is vital to be able to identify mesh complications early. Various imaging methodologies exist to visualize vaginal mesh placement and complications, including ultrasound, magnetic resonance imaging (MRI), and computed tomography (CT). This invited review paper focuses on the role of ultrasound in mesh visualization, mesh complication identification, and operative planning in the event of subsequent surgical mesh revision. Polypropylene mesh is echogenic on ultrasound, making it a useful tool for visualizing post-operative mesh placement. Transperineal, translabial and endovaginal ultrasound technique use has been described in the pre- and peri-operative setting to identify mesh in complex cases. Efficacy and practicality of CT and MRI use in identifying mesh in these cases is limited.

Imaging of slings and meshes

The popularity of imaging in pelvic floor medicine continues to increase. Among the various modalities, ultrasound is superior as it is cheap, safe, easily accesible and simple, resulting in high patient compliance. It is the only technique that allows imaging of modern wide-weave polypropylene sling or mesh implants, and imaging of such implants is commonly required due to the popularity of surgical techniques that involve the placement of slings and meshes. This review article will discuss the role of translabial ultrasound in the evaluation of synthetic implants used in the treatment of urinary incontinence and pelvic organ prolapse.

A classification of complications in urogynecology

The frequency of female pelvic floor reconstruction surgery with synthetic materials has been systematically rising for the last 30 years. Nowadays, they are widely used in urogynecology with a high cure rate, and a statistically significant better outcome compared to classical vaginal repair procedures. This type of operation progressed in some areas from an indication for recurrent prolapse to that of using them in primary procedures. Nevertheless, implantation of synthetic material is associated with the occurrence of specific complications and side-effects. The number and type of complications varies, depending on the study, reaching as much as 10% in some centers. The International Continence Society (ICS) and International Urogynecological Association (IUGA) have introduced an interesting tool for the evaluation of complications related directly to the insertion of prostheses and grafts in the female pelvic floor. The purpose of this classification is to describe possible complications with numbers and letters which together form a code containing comprehensive information about the complication. This article presents the clinical and practical aspects of this classification and first comments about its usability. The presented classification may serve as a tool for the development of national and international registries of urogynecological procedures that would be a great source of information on the number and type of operations performed, their effectiveness and potential complications.

Three-dimensional transperineal ultrasound for imaging mesh implants following sacrocolpopexy

OBJECTIVE

To characterize, using three-dimensional (3D) transperineal ultrasound, the appearance, position and dimensions of mesh implants following minimally invasive abdominal sacrocolpopexy.

METHODS

In women who underwent sacrocolpopexy, mesh was evaluated at rest and on maximal Valsalva, on all 3D orthogonal planes and rendered views. Mesh dimensions were obtained by 3D processing in the midsagittal and coronal planes (anterior, posterior and sacral arm) and were analyzed offline, the operator blinded to clinical data.

RESULTS

Overall, 62 women, mean age 58.4 (range, 42-79) years were evaluated at a median of 9 (range, 1-26) months following surgery. The anterior arm of the mesh was caudal to the lowermost point of descent of the anterior compartment in 56 (90.3%) women, was equally positioned in five (8.1%) and was cranial in one. The posterior arm was caudal in 44 (71%) women, was equally positioned in 16 (25.8%) and was cranial in two (3.2%). The Y connection and the sacral arm of the mesh could not be adequately seen because of physical limitations of ultrasound (lower resolution at greater depth), large recurrent rectoceles, echogenic stools or folding of mesh remnants. Folding of the mesh was seen in 46 (74.2%) women, folding of the anterior arm in five (8.1%) and folding of the posterior arm in 23 (37.1%). Folding occurred caudally in 26 (41.9%) women, proximally in 11 (17.7%) and in both areas in nine (14.5%). There were no erosions.

CONCLUSION

Mesh visualization following minimally invasive abdominal sacrocolpopexy procedures using transperineal 3D/four-dimensional (4D) ultrasound is feasible. Studies are needed to evaluate the correlation between ultrasound measures and prolapse recurrence or mesh erosion.

Effectiveness of Hyalobarrier and Seprafilm to prevent polypropylene mesh shrinkage: a macroscopic and histological experimental study

INTRODUCTION AND HYPOTHESIS

Polypropylene (PP) mesh shrinkage represents a serious complication, as a significant cause of pain and recurrence of pelvic organ prolapse or ventral hernias, frequently requiring several surgical interventions. The retraction seems to be caused by the host, in response to the implantation, through the occurrence of periprosthetic adhesions and fibrosis. We hypothesized that avoiding the postoperative adhesions can prevent PP mesh shrinkage.

METHODS

Sixty rats were randomly assigned to three groups. A standardized hernia defect was induced on the abdominal wall, which was repaired using an extraperitoneal PP mesh alone (group 1), with application of a hyaluronate carboxymethylcellulose-based bioresorbable membrane (Seprafilm, group 2), or an auto-cross-linked polysaccharide hyaluronan-based solution (Hyalobarrier gel, group 3). Eight weeks after the procedure, a repeat laparotomy was performed. After scoring the adhesion and measuring the mesh surface, a microscopic study of the prosthesis-host tissue interfaces was performed.

RESULTS

Group 1 displayed a median shrinkage of 29% of the mesh. The Seprafilm group (p = 0.0238) and Hyalobarrier gel group (p = 0.0072) displayed a significantly smaller reduction of 19.12 and 17 %, respectively. Control group 1 displayed a significantly greater adhesion score (30.40) than the Seprafilm (11.67, p = 0.0028) and Hyalobarrier gel groups (11.19, p = 0.0013). The fibrosis was reduced in the Hyalobarrier gel group only.

CONCLUSION

This experimental study revealed that Hyalobarrier gel and Seprafilm can prevent PP mesh shrinkage and postoperative adhesions. They might be integrated in a mesh size-saving strategy, which should preserve the quality and durability of the surgical repair and limit the postoperative pain.

Assessment of collagen-coated anterior mesh through morphology and clinical outcomes in pelvic reconstructive surgery for pelvic organ prolapse

STUDY OBJECTIVE

To assess the morphologic features of anterior armed transobturator collagen-coated polypropylene mesh and its clinical outcomes in pelvic reconstructive surgery to treat pelvic organ prolapse.

DESIGN

Evidence obtained from several timed series with intervention (Canadian Task Force classification II-3).

SETTING

Chang Gung Memorial Hospital, Taoyuan, Taiwan, China.

PATIENTS

Between April 2010 and October 2012, 70 patients underwent surgery to treat symptomatic pelvic organ prolapse, stage III/IV according to the POP-Q (Pelvic Organ Quantification System).

INTERVENTION

Anterior armed transobturator collagen-coated mesh.

MEASUREMENT AND MAIN RESULTS

Morphologic findings and clinical outcome were measured. Morphologic features were assessed via 2-dimensional introital ultrasonography and Doppler studies. Clinical outcome was measured via subjective and objective outcome. Objective outcome was assessed via the 9-point site-specific staging method of the International Continence Society Pelvic Organ Prolapse Quantification before the operation and at 1-year postoperative follow-up. Subjective outcome was based on 4 validated questionnaires: the 6-item UDI-6 (Urogenital Distress Inventory), the 7-item IIQ-7 (Incontinence Impact Questionnaire), the 6-item POPDI-6 (Pelvic Organ Prolapse Distress Inventory 6), and the 12-item PISQ-12 (Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire), at baseline and at 12 months after the operation. Data were obtained for 65 patients who underwent the combined surgery and were able to comply with follow-up for >1 year. Ultrasound studies reveal that mesh length tends to shorten and decrease in thickness over the 1-year follow-up. Vagina thickness also was reduced. Neovascularization through the mesh was observed in <8.5% of patients in the first month and at 1 year, and was evident in approximately 83%. The mesh exposure rate was 6.4%. The recorded objective cure was 90.8% (59 of 65 patients), and subjective cure was 89.2% (58 of 65 patients) at mean (SD) follow-up of 19.40 (10.98) months. At 2 years, UDI-6, IIQ-7, and POPDI-6 scores were all significantly decreased (p < .001), whereas the PISQ-12 score was significantly increased (p = .01).

CONCLUSIONS

Ultrasound features suggest that the degeneration of collagen barrier may be longer than expected and that integration of collagen-coated mesh could occur up to 1 year. A substantially good clinical outcome was noted.

Three-dimensional endovaginal sonography of synthetic implanted materials in the female pelvic floor

The objective of this pictorial essay is to emphasize the ability of 3-dimensional endovaginal sonography to image synthetic implanted materials in the female pelvic floor. Implanted materials discussed in this pictorial essay include polypropylene vaginal mesh, polypropylene suburethral slings, and urethral bulking agents. Three-dimensional endovaginal sonography allows for more detailed imaging compared to computed tomography and magnetic resonance imaging of the female pelvic floor, in that each plane can be manipulated to show unique images of synthetic implanted materials.

Translabial ultrasonography for evaluation of synthetic mesh in the vagina

OBJECTIVE

To compare the clinical and surgical findings using translabial ultrasonography (US) in the evaluation of symptoms after transvaginal synthetic mesh placement.

METHODS

From 2009 through 2010, a retrospective observational study was conducted to evaluate patients presenting with complaints after transvaginal mesh implantation for the treatment of stress urinary incontinence or pelvic organ prolapse repair. The clinical and translabial US findings were compared with the intraoperative findings, with a focus on mesh location, erosion, and extrusion.

RESULTS

A total of 51 consecutive patients (mean age 59 years) were evaluated by history and physical examination, translabial US, and intraoperative findings. Using intraoperative findings as the reference standard, translabial US was able to predict the location of the sling in relationship to the urethra (6 distal, 25 mid-urethral, and 20 at the bladder neck), to differentiate between transobturator (n = 21) and retropubic (n = 30) slings, and to detect all anterior (n = 21) and posterior (n = 15) placed mesh. Translabial US was superior to physical examination in identifying mesh erosion into the periurethral fascia or sphincteric unit. US was inferior to physical examination in diagnosing vaginal extrusion but was superior for locating the mesh.

CONCLUSION

Translabial US can identify the mesh material used to treat stress urinary incontinence and pelvic organ prolapse. It provides additional information on sling type, mesh location, and morphology compared with the clinical findings and could help in surgical planning and counseling. Prospective clinical studies evaluating the reliability of this technique in larger patient populations are warranted.

Women's quality of life and sexual function after transvaginal anterior repair with mesh insertion

OBJECTIVE

Current evidence about the impact of pelvic floor surgery on sexual function is conflicting. Only a few studies have reported with validated questionnaires on sexual function after transvaginal mesh repair, with a discrepancy in reported outcomes. The aim of this study was to prospectively explore the impact of anterior repair (AR) with mesh insertion on sexual function, quality of life and dyspareunia.

STUDY DESIGN

69 women with symptomatic stage II or greater prolapse exclusively of the anterior compartment participated in a prospective study on safety and efficacy of two mesh implantation techniques for anterior vaginal wall prolapse repair between September 2007 and May 2009. They were invited to complete the validated condition-specific short form of the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12) and quality of life (QoL) questionnaires (Pelvic Organ Prolapse (POP) Distress Inventory (POPDI), Urinary Distress Inventory (UDI), POP Impact Questionnaire (POPIQ), and Urinary Impact Questionnaire (UIQ)) pre-operatively and 6 months post-operatively. All data were processed and analyzed in Statistical Computing Environment R, version 2.9.1.

RESULTS

A significant decrease of Qol scores and a significant increase of PISQ-12 scores occurred after surgery. All sexually active women resumed sexual activity postoperatively. The majority of non-sexually active women remained sexually inactive. Postoperatively the frequency of pain during intercourse increased in 31% of cases and decreased or stayed unchanged in 69% of cases. The incidence of de novo dyspareunia after mesh repair was 4% while the incidence of dyspareunia slightly increased from 25% to 29% postoperatively.

CONCLUSIONS

The results of this study suggest no deterioration in sexual function, a significant improvement in quality of life and a low incidence of de novo dyspareunia six months after AR with mesh insertion. Despite these findings, the majority of non-sexually active women remain sexually inactive postoperatively. These conclusions should be confirmed in a longer follow-up.

An appraisal of the Food and Drug Administration warning on urogynecologic surgical mesh

Currently, there is no consensus on the use of mesh in transvaginal surgical repairs for the treatment of pelvic organ prolapse. This review recapitulates and assesses the recent U. S. Food and Drug Administration (FDA) warnings about the use of surgical mesh in transvaginal pelvic organ prolapse repair and summarizes the responses of the national organizations that represent the health care providers most invested in treating patients with transvaginal surgical mesh. Mesh exposure or extrusion through the vaginal wall, true mesh erosion into viscera, and infection are the major complications that are currently used to define the safety of synthetic mesh use. Other potential adverse postsurgical outcomes that can affect quality of life, sexual function, and patient satisfaction include dyspareunia, "hispareunia" (ie, complaints of a sexual partner), prosthetic contraction or prominence, vaginal shortening, pelvic pain, urinary dysfunction, and failure of the repair. These outcomes are frequently attributed to mesh use, and can result in expense, frustration, and the need for further medical and surgical interventions for patients undergoing treatment for pelvic floor disorders. Information regarding the FDA's reports on the use of surgical mesh in pelvic organ prolapse repair should be made available to patients at the time of surgical planning and should be used as an adjunct in the process of obtaining informed consent.

Complications of synthetic slings used in female stress urinary incontinence and applicability of the new IUGA-ICS classification

OBJECTIVES

To analyze different complications of synthetic suburethral slings, and to apply the new "IUGA-ICS classification of complications directly related to the insertion of prosthesis (meshes, implants, tapes) and grafts in female pelvic floor surgery" to the list of complications, check its applicability, and give suggestions regarding possible improvements.

STUDY DESIGN

This study is an analysis of complications of synthetic suburethral slings. Data on type of complication, time interval between the insertion of the prosthesis and the onset of symptoms of complication, type and nature of prosthesis, and management process were documented. Additional descriptions of the sling position in relation to lower urinary tract, shrinkage or prominence of the prosthesis, and intra-operative nature of the prosthetic material were collected for analysis.

RESULTS

From the year 2003 to 2010, 376 women with complications of synthetic suburethral slings were managed surgically and the data were analyzed. Overactive bladder (OAB) at 54%, lower urinary tract obstruction (48%), vaginal exposure (19%), and pain (14%) were the most frequent complications. Infection, fistulae, urinary tract penetration, and groin/thigh pain were other complications. The new IUGA-ICS classification could be applied to most of the types of complications, a notable exception being de novo development of overactive bladder. Also category 4B of IUGA-ICS classifications encompasses a wide clinical variety of complications and may need reconsideration.

CONCLUSION

De novo OAB seems to be the commonest complication of synthetic suburethral slings, followed by obstruction, vaginal exposure, and long term pain. The new IUGA-ICS classification on complications has good general applicability; some minor changes may be useful in the future.

Controversies in the management of mesh-based complications: a urology perspective

Since the introduction of the synthetic midurethral sling, several transvaginal mesh delivery systems have been developed for treating stress incontinence and pelvic organ prolapse. Widespread use of these "kits" has introduced a new dilemma of mesh-specific complications that female pelvic surgeons must manage. Differing treatment techniques have been described and controversy exists as to which method is preferred for vaginal mesh extrusion, mesh perforations, pelvic pain, and dyspareunia. This article addresses the differing management strategies for mesh complications after reconstructive surgery and highlights the available literature on the success of each option.

Interrater reliability of the International Continence Society and International Urogynecological Association (ICS/IUGA) classification system for mesh-related complications

OBJECTIVE

We sought to assess interrater reliability of the International Continence Society (ICS)/International Urogynecological Association (IUGA) classification system of vaginal mesh-related complications and compare this with several other available complication classification systems.

STUDY DESIGN

This was a retrospective analysis of mesh-related complications in patients presenting after pelvic organ prolapse or incontinence surgery. The complications were classified by 2 independent reviewers using the ICS/IUGA classification system as well as 3 other available classification systems. Interrater reliability was assessed using percent agreement and the weighted κ statistic.

RESULTS

The ICS/IUGA mesh complication classification system was found to have poor interrater reliability (κ = 0.15-0.78). The other systems yielded a κ that ranged from 0.18-0.60, but were too general or could only be applied to 68% of the complications.

CONCLUSION

The complexity of the ICS/IUGA mesh complication system, the large number of categories, and lack of clarity likely contribute to its poor interrater reliability.

Time to rethink: an evidence-based response from pelvic surgeons to the FDA Safety Communication: "UPDATE on Serious Complications Associated with Transvaginal Placement of Surgical Mesh for Pelvic Organ Prolapse"

In July of 2011 the U.S. Food and Drug Administration (FDA) released a safety communication entitled "UPDATE on Serious Complications Associated with Transvaginal Placement of Surgical Mesh for Pelvic Organ Prolapse." The stated purpose of this communication is to inform health care providers and patients that serious complications with placement of this mesh are not rare and that it is not clear that these repairs are more effective than nonmesh repair. The comments regarding efficacy are based on a systematic review of the scientific literature from 1996-2011 conducted by the FDA. Our review of the literature during this time yields some different conclusions regarding the safety and efficacy of mesh use in prolapse repair. It may be useful to consider this information prior to making recommendations regarding mesh use in prolapse surgery according to the recent UPDATE.

State of the art: an integrated approach to pelvic floor ultrasonography

Surgical management of pelvic floor disorders depends on a comprehensive understanding of the structural integrity and function of the pelvic floor. For visualizing this region, ultrasonography has emerged as a procedure that is relatively easy to perform, cost-effective and widely available. In this review, pelvic floor ultrasonography, including two-dimensional (2D), three-dimensional (3D) and 4D imaging as well as transvaginal, endoanal and transperineal techniques, is discussed from a global and multicompartmental perspective, rather than using a compartmentalized approach. The role of the different sonographic modalities in the major disorders of the pelvic floor-urinary and fecal incontinence, pelvic organ prolapse and obstructed defecation syndrome-is evaluated critically.