Results after seven years of follow-up suggest that women considering abdominal sacrocolpopexy (surgery for pelvic organ prolapse [POP]) should be counseled that this procedure effectively provides relief from POP symptoms; however, the anatomic support deteriorates over time; and that adding an anti-incontinence procedure decreases, but does not eliminate the risk of stress urinary incontinence, and mesh erosion can be a problem, according to a study in the May 15 issue of JAMA.
"Pelvic organ prolapse occurs when the uterus or vaginal walls bulge into or beyond the vaginal introitus [vaginal opening]. It is a common occurrence and 7 percent to 19 percent of women receive surgical repair," according to background information in the article. More than 225,000 surgeries are performed annually in the United States for POP. Abdominal sacrocolpopexy is the most durable operation for advanced POP and serves as the criterion standard against which other operations are compared, but little is known about safety and long-term effectiveness.
Ingrid Nygaard, M.D., of the University of Utah School of Medicine, Salt Lake City, and colleagues conducted a study to describe anatomic and symptomatic outcomes up to 7 years after abdominal sacrocolpopexy and to determine whether these are affected by anti-incontinence surgery (Burch urethropexy). The study consisted of a long-term follow-up of the randomized, 2-year Colpopexy and Urinary Reduction Efforts (CARE) trial of women with stress continence who underwent abdominal sacrocolpopexy between 2002 and 2005 for symptomatic POP and also received either concomitant Burch urethropexy or no urethropexy. Ninety-two percent (215/233) of eligible 2-year CARE trial completers were enrolled in the extended CARE study; and 181 (84 percent) and 126 (59 percent) completed 5 and 7 years of follow-up, respectively. The median (midpoint) follow-up was 7 years.
Of 215 women enrolled in the extended CARE study, 104 had undergone abdominal sacrocolpopexy plus Burch urethropexy and 111 had undergone abdominal sacrocolpopexy alone. The researchers found that that POP and urinary incontinence (UI) treatment failure rates gradually increased during the follow-up period. By year 7, the estimated probabilities of POP treatment failure for the urethropexy group and the no urethropexy group, respectively, were 0.27 and 0.22 for anatomic failure; 0.29 and 0.24 for symptomatic failure; and 0.48 and 0.34 for a composite of both.
Overall for the duration of the study, the estimated probability of stress urinary incontinence (SUI) was 0.62 for the urethropexy and 0.77 for the no urethropexy group. The expected time to treatment failure for the SUI outcome in the urethropexy group vs. the no urethropexy group was 131.3 months vs. 40.2 months, respectively.
The probability of mesh erosion at 7 years was 10.5 percent.
"Three key points emerge from these data. First, as a criterion standard for the surgical treatment of POP, abdominal sacrocolpopexy is less effective than desired. … Second, surgical prevention of SUI at the time of abdominal POP surgery involves no clinically significant trade-offs identified to date. … In addition, we found that complications related to synthetic mesh continue to occur over time," the authors write.
"We anticipate that continued research in mesh development will lead to new materials and applications with fewer adverse events, but our data highlight the importance of careful long-term evaluation of new devices. Comparative effectiveness trials with long-term follow-up of at least 5 years are needed to compare abdominal sacrocolpopexy that we described in this report with vaginal prolapse procedures that include and do not include mesh augmentation."
"Abdominal sacrocolpopexy effectiveness should be balanced with long term risks of mesh or suture erosion."
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