The Role of Mid-urethral Slings in 2014: Analysis of the Impact of Litigation on Practice

Ultra Long-term Follow-up of the Autologous Pubovaginal Sling for Stress Incontinence: Results at 23 Years

OBJECTIVE

To examine the efficacy, safety, and long-term durability of the autologous pubovaginal sling for stress incontinence over a 29-year period.

METHODS

A total of 192 consecutive female patients with stress urinary incontinence who underwent autologous pubovaginal sling from 1993 through 1999 were analyzed over a 29-year period. Intermediate and ultra long-term follow-up were obtained at a mean of 4 and 23 years, respectively. A total of 51 patients had sufficient data at both time intervals and were evaluated using a standardized questionnaire for resolution of stress incontinence, the primary endpoint, as well as resolution of urge incontinence, overall dryness, and voiding dysfunction.

RESULTS

At intermediate-term follow-up (mean 45.3 months), 96% of 51 patients reported no stress incontinence. In addition, 76% of patients experienced resolution of their preoperative urge incontinence. Overall dryness occurred in 84%. At ultra long-term follow-up (mean 22.9 years), 84% reported no stress incontinence and an overall dryness rate of 53%. Postoperative voiding dysfunction included de novo urge incontinence (3 patients) and persistent urinary obstruction requiring urethrolysis (1 patient).

CONCLUSION

The autologous pubovaginal sling is effective, safe, and durable at a mean of 23 years, the longest known follow-up in the literature. Given the U.S. Food and Drug Administration (FDA) warnings regarding transvaginal mesh and growing concerns with the synthetic midurethral sling, the autologous pubovaginal sling should be offered as an option to those women seeking treatment for stress urinary incontinence.

Pathological findings in explanted vaginal mesh

In light of the legal issues and the shortage of data on histopathological findings, we summarized our experience on how explanted vaginal mesh specimens were managed in a surgical pathology practice during the last 5 years. Clinical history and pathology reports were collected from 155 women undergoing transvaginal tape excision. The degree of chronic inflammation, fibrosis, foreign-body giant cell reactions, the number of capillary vessels and nerve fibers, and the presence or absence of adipose tissue were recorded. Among the 155 patients, 65 (41.9%) were active medicolegal cases, with a significant increase in recent years. The main medical indications for mesh excision were pelvic pain, mesh erosion, voiding dysfunction, genital organ prolapse, and vaginal bleeding. In most cases, mild to moderate chronic inflammation with a mild degree of foreign-body giant cell reaction and minimal to mild fibrosis were found in explanted mesh specimens. The specimens were well vascularized without any evidence of nerve abnormality. Patient age correlated negatively with vaginal pain (P = .007) but positively with erosion (P = .005). In addition, the presence of adipose tissue within the explanted mesh correlated significantly with pelvic pain (P = .016). Overall, there was good tissue integration in all specimens. Considering the significant increase in the number of lawsuits in recent years, we recommend that all explanted vaginal mesh specimens be examined microscopically as well as grossly. A list of microscopic findings, including the presence or absence of adipose tissue, is suggested.