The impact of preoperative pelvic pain on outcomes after vaginal reconstructive surgery

BACKGROUND

Pelvic pain is a debilitating condition that is common among women with pelvic floor disorders. Limited information is known about the impact of preoperative pelvic pain on outcomes after vaginal reconstructive surgery.

OBJECTIVE

This study aimed to compare the outcomes after vaginal reconstructive surgery between women with and without preoperative pelvic pain.

STUDY DESIGN

Baseline and postoperative data were analyzed from the "Outcomes Following Vaginal Prolapse Repair and Midurethral Sling trial." The multicenter trial involved women with anterior prolapse without symptoms of stress incontinence randomized to receive either a midurethral sling or sham incisions during a vaginal reconstructive surgery. Participants completed the visual analog scale adapted for suprapubic pain and Pelvic Floor Distress Inventory at baseline, 3 months, and 12 months. Preoperative pelvic pain was defined as a response of "5" or greater on pain on the visual analog scale or answering "moderately" or "quite a bit" on the Pelvic Floor Distress Inventory question, "Do you usually experience pain in the lower abdomen or genital area?" Outcomes and complication rates were compared between women with and without pelvic pain.

RESULTS

The "Outcomes Following Vaginal Prolapse Repair and Midurethral Sling trial" participants included 112 women with pelvic pain (58 had a midurethral sling and 54 had sham incisions) and 212 women without pelvic pain (105 had a midurethral sling and 107 had sham incisions). Women who had a midurethral sling and pelvic pain were younger than women without pelvic pain (60.3±12.1 vs 65.1±8.6; P=.004). Women who had sham incisions and pelvic pain were more likely of Hispanic ethnicity than women without pelvic pain (27.8% vs 9.4%; P=.002). Patient improvement based on the Patient Global Impression of Improvement scale did not differ between arms. Women with pelvic pain had greater improvement on the visual analog scale pain scores after a surgical procedure at 3 months (-3.1±2.9 vs -0.4±1.6; P<.001) and at 12 months (-3.4±3.0 vs -0.6±1.6; P<.001) than women without pain, although their pain scores remained higher than those without preoperative pelvic pain at all time points (P<.001 for all). Similar improvements were found on the Pelvic Floor Distress Inventory and Pelvic Floor Impact Questionnaire. The differences observed were not affected by whether women were in the midurethral sling or sham arm of the trial. Postoperative urinary tract infection and incomplete bladder emptying did not differ between the groups.

CONCLUSION

Women with preoperative pelvic pain experienced significant improvements in pain and pelvic floor symptoms with vaginal reconstructive surgery and had similar subjective improvement postoperatively compared with women without preoperative pelvic pain. Reassuringly, the performance of a midurethral sling did not have an impact on the results.

Pain and activity after vaginal reconstructive surgery for pelvic organ prolapse and stress urinary incontinence

BACKGROUND

Little is known about short- and long-term pain and functional activity after surgery for pelvic organ prolapse.

OBJECTIVE

The objectives of the study were to describe postoperative pain and functional activity after transvaginal native tissue reconstructive surgery with apical suspension and retropubic synthetic midurethral sling and to compare these outcomes between patients receiving 2 common transvaginal prolapse repairs, uterosacral ligament, and sacrospinous ligament vaginal vault suspension.

STUDY DESIGN

This planned secondary analysis of a 2 × 2 factorial randomized trial included 374 women randomized to receive uterosacral (n = 188) or sacrospinous (n = 186) vaginal vault suspension to treat both stages 2-4 apical vaginal prolapse and stress urinary incontinence between 2008 and 2013 at 9 medical centers. Participants were also randomized to receive perioperative pelvic muscle therapy or usual care. All patients received transvaginal native tissue repairs and a midurethral sling. Participants completed the Surgical Pain Scales (0-10 numeric rating scales; higher scores = greater pain) and Activity Assessment Scale (0-100; higher score = higher activity) prior to surgery and at 2 weeks, 4-6 weeks, and 3 months postoperatively. The MOS 36-item Short-Form Health Survey was completed at baseline and 6, 12, and 24 months after surgery; the bodily pain, physical functioning, and role-physical subscales were used for this analysis (higher scores = less disability). Self-reported pain medication use was also collected.

RESULTS

Before surgery, average pain at rest and during normal activity were (adjusted mean ± SE) 2.24 ± 0.23 and 2.76 ± 0.25; both increased slightly from baseline at 2 weeks (+0.65, P = .004, and +0.74, P = .007, respectively) and then decreased below baseline at 3 months (-0.87 and -1.14, respectively, P < .001), with no differences between surgical groups. Pain during exercise/strenuous activity and worst pain decreased below baseline levels at 4-6 weeks (-1.26, P = .014, and -0.95, P = .002) and 3 months (-1.97 and -1.50, P < .001) without differences between surgical groups. Functional activity as measured by the Activity Assessment Scale improved from baseline at 4-6 weeks (+9.24, P < .001) and 3 months (+13.79, P < .001). The MOS 36-item Short-Form Health Survey Bodily Pain, Physical Functioning, and Role-Physical Scales demonstrated significant improvements from baseline at 6, 12, and 24 months (24 months: +5.62, +5.79, and +4.72, respectively, P < .001 for each) with no differences between groups. Use of narcotic pain medications was reported by 14.3% of participants prior to surgery and 53.7% at 2 and 26.1% at 4-6 weeks postoperatively; thereafter use was similar to baseline rates until 24 months when it decreased to 6.8%. Use of nonnarcotic pain medication was reported by 48.1% of participants prior to surgery, 68.7% at 2 weeks, and similar to baseline at 3 months; thereafter use dropped steadily to 26.6% at 2 years. Uterosacral ligament suspension resulted in less new or worsening buttock pain than sacrospinous suspension at 4-6 weeks postoperatively (4.6% vs 10.5%, P = .043) but no difference in groin or thigh pain.

CONCLUSION

Pain and functional activity improve for up to 2 years after native tissue reconstructive surgery with uterosacral or sacrospinous vaginal vault suspension and midurethral sling for stages 2-4 pelvic organ prolapse. On average, immediate postoperative pain is low and improves to below baseline levels by 4-6 weeks.

Uniaxial biomechanical properties of seven different vaginally implanted meshes for pelvic organ prolapse

INTRODUCTION AND HYPOTHESIS

Recently, numerous type I macroporous polypropylene vaginal meshes have been introduced into the market with little known of their differences.

METHODS

Seven vaginal meshes were obtained and loaded to failure (n = 5/type). Additional cyclic loading determined permanent deformation with submaximal loading.

RESULTS

The load elongation curves demonstrated a bilinear response with lower stiffness (N/mm), followed by higher stiffness. Ascend™ was the stiffest mesh in both regions of the load elongation curve (0.72 and 1.66 N/mm) with the lowest transition to higher stiffness (13.4%). Polyform™ had the highest failure load (53.8 N) while Ultrapro™ had the lowest (7.83 N). Novasilk™ (89.4%) and Ultrapro™ (87.9%) had the highest relative elongations at mesh failure while Ascend™ had the lowest (40.2%). Ascend™ had the least relative elongation after three protocols of cyclic loading (3.0%, 9.8%, and 9.7%).

CONCLUSIONS

Current vaginal meshes demonstrate marked variation in biomechanical characteristics which may impact the in vivo behavior.