Anchor placement and subsequent movement in a mesh kit with self-fixating tips: 6-month follow-up of a prospective cohort

Minimally invasive meshless and minimal dissection ligament fixation system for apical organ prolapse procedures: A 4-year prospective follow up study

OBJECTIVE

EnPlace™ (formerly named NeuGuide™) is a minimally invasive meshless anchoring system for pelvic organ prolapse (POP) repair designed to provide centro-apical pelvic floor support. We present a 4-year prospective follow up evaluation of this repair system.

METHODS

This was a single-center longitudinal prospective study of women with advanced POP who underwent pelvic floor apical repair using EnPlace™ with at least 4 years of follow-up. The primary outcome was surgical success defined as anatomical success, no symptoms of vaginal bulging and no need for re-treatment. A standardized validated questionnaire to assess symptom burden was used.

RESULTS

Fifteen women were enrolled in the study. Two patients were lost to follow-up. The median follow-up was 51 months (range 42-57) with a surgical success rate of 92.3%. One patient (7.7%) reported symptoms of vaginal vault prolapse and underwent a repeated prolapse surgery. Using the UDI-6 questionnaire, an improvement in all domains was seen.

CONCLUSION

The 4-year prospective follow up suggests that apical repair using the EnPlace™ device may be considered safe and effective for sacrospinous ligament fixation with a sustainable long-term success. This procedure is a minimally invasive meshless addition to pelvic surgeon's armamentarium.

Comparison of Prolift, Perigee-Apogee, Prosima, and Elevate transvaginal mesh systems in pelvic organ prolapse surgery: Clinical outcomes of a long-term observational study

OBJECTIVES

To evaluate and compare the long-term clinical outcomes of four different transvaginal mesh systems.

METHODS

This retrospective study included 695 patients classified into four groups (Prolift, n = 132; Perigee-Apogee, n = 186; Prosima, n = 60; Elevate; n = 317), with a median follow-up time of 5.8 years (range 0.5-12.2 years). The outcomes were objective anatomic success (Pelvic Organ Prolapse [POP] Quantification system stage ≤1), mesh exposure, and urologic functional assessments.

RESULTS

For anatomic outcomes, we stepwise analyzed the short-term (within 3 years) and long-term (after 3 years) results. Prolift had the highest long-term success rate (9 years: 82.1%, P = .007). Elevate had a comparable short-term success rate (3 years: 87.5%), but its long-term success rate significantly decreased over time (5 years: 78.6%, 9 years: 66.8%, P = .007). Prosima had the lowest short-term success rate (P = .027). For the long-term mesh exposure rate (9-year cumulative), Elevate had the lowest with 11.1%; next were Perigee-Apogee (18.8%) and Prolift (24.6%); and Prosima had the highest with 39.4%, with a significant difference. In terms of urinary functional results, we observed no significant differences in voiding dysfunction, de novo stress urinary incontinence, or de novo overactive bladder symptoms among the four mesh groups, whether combined with midurethral sling surgery or not.

CONCLUSION

Different vaginal mesh designs have various advantages and features. Prolift provided the best long-term anatomic success but had a high mesh exposure rate. Elevate gave comparable short-term success but had a decreased long-term success rate. However, Elevate is superior with the lowest long-term mesh exposure rate. Prosima had the worst anatomic correction and highest mesh exposure rates. This study provides a comprehensive long-term comparative result for POP patients and surgeons.

Impact of Genital Hiatus Size on Anatomic Outcomes After Mesh-Augmented Sacrospinous Ligament Fixation

OBJECTIVE

Our objective is to compare anatomic outcomes at medium term after mesh-augmented sacrospinous ligament fixation among women categorized by their preoperative and postoperative genital hiatus size.

METHODS

We performed a retrospective cohort study in women undergoing Uphold mesh-augmented sacrospinous ligament fixation between 2010 and 2017. We compared 3 groups: (1) women with a wide genital hiatus preoperatively and 6 weeks postoperatively ("Persistently Wide" cohort), (2) women with a wide genital hiatus preoperatively but normal hiatus 6 weeks postoperatively ("Improved" cohort), and (3) women with a normal genital hiatus preoperatively and 6 weeks postoperatively ("Stably Normal" cohort). We defined a wide hiatus as 4 cm or greater and a normal hiatus as less than 4 cm. The primary outcome was anatomic failure, defined as recurrent prolapse beyond the hymen or retreatment for prolapse with surgery or pessary.

RESULTS

Ninety-seven women were included in the study. Overall, mean age was 68 years (±7.15 years), mean body mass index was 28.36 kg/m2 (±5.34 kg/m2) and mean follow up time was 400 ± 216 days. Anatomic failure did not differ between groups (Persistently Wide, 15.4%; Improved, 11.1%; Stably Normal, 10.0%; P = 0.88). In logistic regression, the odds of anatomic failure remained similar among all groups (P = 0.93).

CONCLUSIONS

A persistently wide genital hiatus alone was not associated with anatomic failure in this small study cohort. Therefore, surgical reduction of the genital hiatus with level III support procedures may not affect prolapse recurrence at the time of mesh-augmented sacrospinous ligament fixation. Further studies are needed to confirm this relationship and investigate other potential mechanisms for these findings.

Safety and short term outcomes of a new truly minimallyinvasive mesh-less and dissection-less anchoring system for pelvic organ prolapse apical repair

OBJECTIVE

To evaluate the safety and short term outcomes of a new, truly minimallyinvasive, mesh-less and dissection-less anchoring system for pelvic floor apical repair.

METHODS

A prospective study was conducted using the NeuGuide™ device system for pelvic floor apical repair. The primary effectiveness outcome was centro-apical pelvic floor prolapse by POP-Q after six months. The primary safety outcome was intra-operative, immediate (first 48 h) post-operative complications and adverse effects after six months. A standardized questionnaire (UDI-6) to assess quality of life at entry and during follow-up visits was used. Patients' six months-follow-up and evaluation are reported.

RESULTS

The mean age of the study population (n=10) was 63.8±12.0 years. All patients had a previous prolapse surgery. Five had a previous hysterectomy and two had stress urinary incontinence symptoms. During surgery six patients had a concurrent colporrhaphy. There was no injury to the bladder, rectum, pudendal nerves, or major pelvic vessels and no febrile morbidity was recorded. At six months, no cases of centro-apical recurrence were noted. Patients were satisfied with the procedure and had favorable quality of life scores. Using the UDI-6 questionnaire an improvement, in all domains was seen. Moreover, although the sample size was small, the improvement in urge and overflow incontinence related domains were demonstrated to be statistically significant.

CONCLUSIONS

This new NeuGuide™ device allows rapid and safe introduction of a suspending suture through the sacrospinous ligament and makes sacrospinous ligament fixation easy to perform, while avoiding dissection and mesh complications.

Introducing a true minimally invasive meshless and dissectionless anchoring system for pelvic organ prolapse repair

INTRODUCTION AND HYPOTHESIS

The objective was to demonstrate the biomechanical properties, feasibility, and potential advantages over conventional techniques of this new anchoring device, NeuGuide™.

METHODS

We evaluated the pull-out forces required to pull the NeuGuide™ anchor elements from a uniform porcine ligament and a cadaver ligament. We also evaluated the function of the NeuGuide™ and the characteristics of the device for the establishment of verification evidence ensuring the reliability and feasibility of the device. We also evaluated the safety and performance of the NeuGuide™ procedure in female cadavers by palpating the sacro-spinous ligament in real time. We assessed the ability to deploy and fixate the anchor to the sacro-spinous ligament and to stitch the sutures from both sides of the vaginal apex to the cervix, without damaging the surrounding structures.

RESULTS

All 12 anchors were inserted into the porcine ligament and the cadaver sacro-spinous ligaments successfully (mean pull-out force 34.13 ± 4.32 and 35.68 ± 9.28 respectively). None of the measured forces were below 20 N. No statistically significant difference was noted in the pull-out forces between the porcine and the cadavers (p = 0.60), between the two cadavers (p = 0.19) and between the right and left sacro-spinous ligaments. No abnormalities or malfunctions were noted in the functional performance of the device. Upon laparotomy, dissection of the cadavers revealed that the sacro-spinous ligaments were reached safely with no damage to the surrounding organs and tissues.

CONCLUSIONS

This novel anchoring device (NeuGuide™) is aimed at facilitating a durable, easy, and short procedure for sacro-spinous ligament fixation with hypothetically fewer operative complications.

[Transvaginal repair of genital prolapse using a light-weight mesh by the vaginal route]

OBJECTIVE

To evaluate the results associated with the transvaginal repair of genital prolapse using a tension free light-weight polypropylene mesh.

PATIENTS AND METHODS

One hundred and fifteen patients have been treated in a single centre. Pre-operative and operative data and complications were recorded. Patients were examined at 1, 6 and 12 months. Anatomical failure was defined as follows: Pelvic Organ Prolapse Quantification (POP-Q) stage II or more.

RESULTS

Seventy-seven (67%) patients completed 6 months follow-up and 45 (39%) patients completed 12 months follow-up. Finally, 70 (61%) patients were lost to follow-up, including 2 deaths (not related to surgery). Mean age was 66 years. All patients were treated with an anterior and apical and 20 patients were additionally treated with a posterior mesh. Among the 77 patients who completed 6 months follow-up, the complications reported were: 2 (2%) bladder injuries, 1 (1%) hematoma, 1 (1%) bleeding>200 mL and 1 (1%) vaginal mesh exposure. At one year, 6 (7%) patients suffered from urinary stress incontinence, 5 (4%) suffered from urgency and 4 (5%) had dyspareunia. Among the 45 patients who completed 12 months follow-up, functional success was 95% and anatomical success was 77%.

CONCLUSION

In this series, the placement of a light-weight transvaginal polypropylene mesh was associated with good functional results and a moderate prevalence of complications.

LEVEL OF EVIDENCE

4.