Symptom Resolution After Operative Management of Complications From Transvaginal Mesh

Crosby, Erin C. MD; Abernethy, Melinda MD, MPH; Berger, Mitchell B. MD, PhD; DeLancey, John O. MD; Fenner, Dee E. MD; Morgan, Daniel M. MD

Obstetrics & Gynecology:
doi: 10.1097/AOG.0000000000000042
Contents: Original Research

OBJECTIVE: Complications from transvaginal mesh placed for prolapse often require operative management. The aim of this study is to describe the outcomes of vaginal mesh removal.

METHODS: A retrospective review of all patients having surgery by the urogynecology group in the department of obstetrics and gynecology at our institution for a complication of transvaginal mesh placed for prolapse was performed. Demographics, presenting symptoms, surgical procedures, and postoperative symptoms were abstracted. Comparative statistics were performed using the χ2 or Fisher’s exact test with significance at P<.05.

RESULTS: Between January 2008 and April 2012, 90 patients had surgery for complications related to vaginal mesh and 84 had follow-up data. The most common presenting signs and symptoms were: mesh exposure, 62% (n=56); pain, 64% (n=58); and dyspareunia, 48% (n=43). During operative management, mesh erosion was encountered unexpectedly in a second area of the vagina in 5% (n=4), in the bladder in 1% (n=1), and in the bowel in 2% (n=2). After vaginal mesh removal, 51% (n=43) had resolution of all presenting symptoms. Mesh exposure was treated successfully in 95% of patients, whereas pain was only successfully treated in 51% of patients.

CONCLUSION: Removal of vaginal mesh is helpful in relieving symptoms of presentation. Patients can be reassured that exposed mesh can almost always be successfully managed surgically, but pain and dyspareunia are only resolved completely in half of patients.


In Brief

The presenting symptoms of a complication from transvaginal mesh placed for prolapse resolve in half of women who opt for surgical removal of the mesh.

Author Information

Departments of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, and Northwestern University Feinberg School of Medicine, Chicago, Illinois.

Corresponding author: Erin C. Crosby, MD, L4000 Women's Hospital, 1500 E Medical Center Drive, Ann Arbor, MI 48109; e-mail:

Financial Disclosure Dr. Delancey is a consultant for American Medical Systems. The other authors did not report any potential conflicts of interest.

Article Outline

Complications from permanent synthetic mesh used in vaginal prolapse repair have been well documented.1–4 A mesh exposure or infection can sometimes be treated with conservative measures such as topical estrogen cream or antibiotics alone. Pain or dyspareunia after vaginal mesh surgery can sometimes resolve on its own or be successfully treated with physical therapy or other treatments. However, surgical removal of transvaginal mesh may be recommended as a result of these and other symptoms. With the recent U.S. Food and Drug Administration warning regarding transvaginal mesh and the increase in litigation, more patients may be interested in removal of mesh than other more conservative treatments.5

There have been many studies published reporting on the rate of complications after placement of vaginal mesh. However, there have been fewer studies published on outcomes after surgical removal of transvaginal mesh. Therefore, there have been little data to guide the physician when counseling patients about expected outcomes after removal of the vaginal mesh. The aim of this study is to present a description of operative findings, an analysis of our patients' experience, and the outcomes of vaginal mesh removal.

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This is a retrospective chart review of all patients undergoing removal of vaginal mesh by the urogynecologists at our institution between January 2008 and April 2012. Approval was obtained by the University of Michigan institutional review board (HUM00038668). Patients who had mesh removal were identified by Current Procedural Terminology codes. Those patients who had removal of a midurethral sling only or sacrocolpopexy grafts were excluded, leaving only those patients undergoing removal of vaginally placed mesh used to treat prolapse. The operative report from the original mesh placement surgery was obtained from the outside institutions and reviewed as well as reports from any previous mesh-removal procedures. A chart review was performed and demographics, medical and surgical histories, and presenting signs and symptoms were recorded as well as postoperative symptoms.

Patients were classified as having a chronic pain condition if they had a history of chronic pelvic pain, endometriosis, interstitial cystitis, irritable bowel syndrome, fibromyalgia, or vulvodynia that predated mesh placement. If a patient reported pain as a presenting symptom before mesh removal, the improvement after mesh removal was categorized as little to no improvement, moderate improvement, or significant improvement or resolution using the patient's description of improvement. The improvement after mesh removal was categorized as little to none if the phrase used was, for example, “no better,” “pain is not improved,” “slightly better.” Examples of phrases for which a patient was categorized as moderate improvement include “50% better,” “somewhat improved,” and “still with some pain.” Examples of phrases for which a patient was categorized as significant improvement or pain resolution include “much better,” “the pain is almost gone” and “80% improvement.” In instances in which phrases used fell into more than one category, the chart abstractors judged which predominated.

The operative report from the mesh-removal procedure at our institution was reviewed. Details of the procedure were recorded including the vaginal compartment from which mesh was removed and whether the mesh removal was “partial” or “all vaginally accessible.” A mesh removal was categorized as “all vaginally accessible” if all mesh was removed to the level of the pelvic sidewall, with or without removal of the mesh arms, and “partial” if less mesh was removed.

Mesh excision was performed by making an incision in the vaginal epithelium and sharply dissecting the mesh from the overlying epithelium and underlying connective tissue. The mesh was divided in the midline, the dissection carried as far from the midline as desired, and the mesh removed. Typically, if the procedure was performed for mesh exposure and no other bothersome symptoms, only the mesh involved in the exposure was removed. If the presenting symptom was pain or dyspareunia, or if the patient desired complete mesh removal, as much mesh was removed as possible. Once the mesh was removed, a concomitant prolapse repair or anti-incontinence procedure was performed if needed. The vaginal epithelium was closed in a tension-free manner.

Descriptive statistics were performed. Comparative analyses were done using the χ2 test or Fisher’s exact test with P<.05 as significant.

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The number of mesh-removal procedures performed at our institution over the 5-year period was reviewed, and the number of procedures performed per year continues to increase (Fig. 1). During the study interval, 108 patients were identified who had a mesh-removal procedure performed by the urogynecologists at our institution. All of the records were reviewed, and 18 patients were excluded as a result of excision of a midurethral sling only (n=10) or sacrocolpopexy mesh (n=8). Demographics of the remaining 90 patients are shown in Table 1 as well as surgical procedures performed before presentation to our office. Of the 90 patients, 39 (43%) had prior mesh-removal procedures: most had one or two prior mesh-removal procedures, but three patients had three or more removal procedures including one patient who had six prior mesh-removal procedures.

Table 2 shows the vaginal compartment from which mesh was removed, the specific brand of mesh removed, and the concomitant procedures performed at the time of mesh removal. In addition to those listed, three patients had rectovaginal fistula repairs and one patient had a vaginoplasty with a full-thickness skin graft for vaginal stenosis. The median length of time between mesh placement and mesh removal was 24 months (range 5–96 months).

Findings at the time of surgery revealed that in 63 of the 90 patients (70%), the mesh was not found to be lying flat or tension-free at the time of mesh removal. Descriptions of the mesh in the operative report from our mesh-removal procedure include: bunched, rolled, tight-band, wadded, gathered, or taut. Many different meshes were removed as seen in Table 2.

The most common presenting signs and symptoms were: pelvic or vaginal pain, 64% (n=58); mesh exposure, 62% (n=56); and a bulge sensation, 30% (n=27) with most patients reporting more than one symptom (see Fig. 2). Another common presenting symptom was dyspareunia, reported by 48% (n=43). Other presenting symptoms include recurrent infection, 9% (n=8); stress urinary incontinence, 28% (n=25); rectovaginal fistula, 3% (n=3); and defecatory dysfunction, 35% (n=32). Of the 56 patients who presented with mesh exposure, 26 had vaginal bleeding or bothersome vaginal discharge, 20 had pain or dyspareunia, four were bothered by the exposure with no specific symptom mentioned, one had recurrent vaginal infections, four had recurrent prolapse with an asymptomatic exposure, and one had stress urinary incontinence with an asymptomatic exposure.

Operative reports for the initial mesh placement surgery were reviewed before mesh removal and the expected location of the mesh noted. During the mesh-removal procedure, mesh was encountered unexpectedly in a second area of the vagina in 5% (n=4); for example, an operative report described mesh only in the anterior vaginal wall, but examination under anesthesia revealed mesh in the posterior vaginal wall as well. Mesh was encountered in the bladder in 1% (n=1) and in the bowel in 2% (n=2). The presenting symptoms most bothersome to the patient with mesh in the bladder were pain, urinary incontinence, and recurrent urinary tract infection. One patient found to have mesh involving the bowel reported recurrent prolapse and pain and the other patient reported pain and dyspareunia. Seven patients required reoperation after mesh removal at our institution. One patient was found to have mesh in the bladder that required subsequent cystoscopic laser removal. Two patients had an autologous fascia pubovaginal sling placed after the mesh-removal procedure: one had recurrent urinary incontinence after a portion of a synthetic midurethral sling was removed and the other had a planned staged procedure for removal of her mesh and then treatment of her incontinence. Four patients (5%) required an additional vaginal mesh-removal procedure.

Follow-up data were available for 84 of the 90 patients. The median follow-up length with interquartile range was 4 (2, 11.5) months. However, 29 of the 84 patients had 2-month follow-up, 29 had up to 6 months follow-up, eight had up to 1-year follow-up, and 18 had follow-up beyond 1 year. After vaginal mesh removal, 51% (n=43) had resolution of all presenting symptoms. Of the patients who presented with mesh exposure, 95% were treated successfully and did not require any further treatment. Persistent symptoms were reported by 51% of those who presented with pain (Fig. 2). The proportion of patients with each symptom before and after mesh removal were compared and there was a significant decrease in the proportion with each symptom after mesh removal (P<.01). Of the 43 patients who reported dyspareunia, 30% reported persistent dyspareunia at most recent follow-up.

Improvement in pain symptoms was analyzed as a result of the relatively high persistence of symptoms after surgery (see Fig. 3). There were 16 women (25%) who carried a preoperative diagnosis of a chronic pain condition and all presented with pain. Of these 16 women, six had little or no improvement in pain compared with five of the 39 women who presented with pain and did not have a chronic pain condition (37% compared with 13%, P=.06). Patients who had removal of all vaginally accessible mesh were not more likely to have a significant improvement in pain compared with those who had partial mesh removal (58.1% compared with 70.1%, P=.4). The number of prior mesh-removal procedures was also not associated with pain resolution. There was one patient who had de novo pain after mesh removal. She had an autologous fascia pubovaginal sling placed at the time of mesh removal and had persistent pain at the Pfannenstiel incision site at last follow-up.

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In this study, complete resolution of all symptoms including vaginal discharge, bleeding, mesh exposure, and pain was achieved for approximately 50% of patients on whom follow-up was available. The symptom most difficult to relieve with surgical management was pain. Significant improvement or complete resolution of pain was achieved in 64% of patients, whereas 36% of patients had moderate or no improvement in pain after mesh removal.

The persistence of pain after mesh removal is consistent with several other series in the literature.2,6–10 The reported rate at which pain is relieved with surgical management in these prior reports ranges from 50% to 78% but little is known about risk factors for persistent pain. In our series, we found that patients with a chronic pain disorder were almost three times more likely to have continued pain after mesh removal than those without a chronic pain disorder (37% compared with 13%, P=.06). We hypothesize that patients with pre-existing pain syndromes have underlying pathophysiology predisposing them to persistent pain, even after mesh has been removed. In general, our approach is to manage expectations by explaining that mesh removal may be one component of a broader treatment plan, which may also include other modalities such as neuropathic pain medications, trigger point injections, and physical therapy.

Some patients who present with pain have a finding on examination that may explain their symptoms such as mesh that is bunched or folded or have an obvious mesh contracture. These women often have a single point or focal area that is painful on examination. Pain relief after mesh removal has been reported in up to 100% of women with obvious mesh contracture.9 However, in other patients, we found no anatomic abnormality on examination; the vagina was supple and the mesh seemed to be lying flat and tension-free, and yet they have had considerable pain since the mesh was placed. It is now our practice to perform removal of all vaginally accessible mesh on those without focal tenderness or clear bunching or folding of mesh and to perform a partial mesh-removal procedure on those with focal tenderness or other finding such as one tender arm of mesh. However, there are instances in which removal of all vaginally accessible mesh was the goal, but a partial removal was done as a result of the risk of increased bleeding or damage to the bladder or bowel during the dissection. At times, one must consider the risk of an intraoperative complication during aggressive removal of all vaginally accessible mesh, because it is not known whether this yields better outcomes than partial removal.

Firoozi et al11 reported on the operative management of complications from vaginal mesh placed for prolapse in a series of 23 patients. In that series, 11 (48%) patients presented with pain or dyspareunia and all but one patient had resolution of the pain or dyspareunia at last follow-up. The mesh removal technique for patients with pain as described in that study is similar to our practice. The median length of time between mesh placement and mesh removal in our study was 24 months. It was not reported in the Firoozi et al study, so it is possible that those patients had a shorter latency to mesh removal, which may affect the risk of persistent pain. It may also be related to the smaller size of that study or the specific mesh kits that were removed. The mesh removed in that study was from one of four types of mesh kits (Prolift, Apogee, Perigee, or Avaulta). In contrast, there were 10 different mesh kits in our series. However, it is important to note that any statement about the risk of persistent pain among different mesh kits should not be extrapolated from a case series such as this, because it is impossible to know the number of patients who received each kit and did not have problems. The role of our study is to provide information on symptom resolution in those women who require surgery for these problems.

Although 30% of our patients had persistent dyspareunia after mesh removal, many patients had not yet had intercourse at the time of last follow-up. Furthermore, it is not known whether this and other symptoms are likely to resolve with time.

This study describes the degree to which symptoms resolve in the short term in one of the largest series of prolapse mesh removal cases reported. There are, however, several limitations to consider in interpreting the results of our study. As a result of its retrospective design, intraoperative data and outcomes were not collected in a standardized fashion and a validated pain assessment was not performed. It is a custom, however, at our institution to have a very detailed operative findings section of the operative note, including, for example, details of the location of mesh exposure, presence or absence of banding and its location, and a detailed description of any prolapse present. In addition, a focus of our postoperative visits is to assess success or failure of symptom resolution. The International Urogynecological Association/International Continence Society graft complication classification system was published during the time when this cohort of patients had surgery and collecting information required by this classification system was not a part of our practice.12 Furthermore, as a tertiary referral center, it is difficult to obtain some components of the International Urogynecological Association/International Continence Society classification system, for example, T (time from mesh placement to initial clinical diagnosis of a complication). Many patients had a concomitant prolapse repair at the time of mesh removal and it is unclear how much this contributes to their symptom burden postoperatively. A quality-of-life assessment was not performed and the metric used for pain improvement was based at times on subjective phrases in the medical record. Because it is a case series, we cannot comment on the frequency or risk factors of complications of individual vaginal mesh kits. Similarly, because we do not place transvaginal mesh for prolapse, we cannot make any comparative statements about our cohort of patients and those who have transvaginal mesh placed and do not require additional treatment.

There are myriad clinical problems resulting from transvaginal mesh that clinicians must manage with little data or experience to guide them. The persistence of pain in 30% of patients suggests that treatment of persistent pain may be among the most difficult. In our experience, issues that may have an effect on outcomes of mesh removal include partial compared with complete removal and patient willingness and ability (financial, logistical) to pursue physical therapy, trigger point medications, and to tolerate neuropathic pain medications postoperatively. However, we were unable to analyze these variables as a result of the size of the study. This analysis suggests that patients with a history of chronic pain diagnoses may not be ideal candidates for the use of synthetic materials or implants and are at a higher risk for persistent pain after mesh removal.

In summary, there are many symptoms well treated with mesh excision. Vaginal bleeding and discharge, erosion, and urinary symptoms are relieved in the overwhelming majority. This analysis has demonstrated to us that we need to be careful to establish realistic patient expectations with respect to immediate and longer-term pain relief. It is our hope that with additional care, including the aforementioned treatments, our patients will experience at least adequate or complete relief of pain.

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© 2014 by The American College of Obstetricians and Gynecologists. Published by Wolters Kluwer Health, Inc. All rights reserved.