Robotic Female Pelvic Floor Reconstruction: A Review

Pressure-Volume Loop Analysis of Voiding Workload: An Application in Trans-Vaginal Mesh-Repaired Pelvic Organ Prolapse Patients

Although trans-vaginal mesh (TVM) offers a successful anatomical reconstruction and can subjectively relieve symptoms/signs in pelvic organ prolapse (POP) patients, its objective benefits to the voiding function of the bladder have not been well established. In this study, we investigated the therapeutic advantage of TVM on bladder function by focusing on the thermodynamic workload of voiding. The histories of 31 POP patients who underwent TVM repair were retrospectively reviewed. Cystometry and pressure volume analysis (PVA) of the patients performed before and after the operation were analyzed. TVM postoperatively decreased the mean voiding resistance (mRv, p < 0.05, N = 31), reduced the mean and peak voiding pressure (mPv, p < 0.05 and pPv, p < 0.01, both N = 31), and elevated the mean flow rate (mFv, p < 0.05, N = 31) of voiding. While displaying an insignificant effect on the voided volume (Vv, p < 0.05, N = 31), TVM significantly shortened the voiding time (Tv, p < 0.05, N = 31). TVM postoperatively decreased the loop-enclosed area (Apv, p < 0.05, N = 31) in the PVA, indicating that TVM lessened the workload of voiding. Moreover, in 21 patients who displayed postvoiding urine retention before the operation, TVM decreased the residual volume (Vr, p < 0.01, N = 21). Collectively, our results reveal that TVM postoperatively lessened the workload of bladder voiding by diminishing voiding resistance, which reduced the pressure gradient required for driving urine flow.

A preliminary clinical report of transvaginal natural orifice transluminal endoscopic Sacrospinous Ligament Fixation in the treatment of moderate and severe pelvic organ prolapse

Objective

To study the efficacy and safety of transvaginal natural orifice transluminal endoscopic Sacrospinous Ligament Fixation in the treatment of moderate and severe pelvic organ prolapse.

Design

Patients were selected into this study on a voluntary basis to evaluate the short-term efficacy of this surgery by comparing the OP-Q scores before the operation, three months after the operation, and six months after the operation.

Setting and Patients

Evaluate the clinical efficacy and safety by a retrospective analysis of the clinical data of the 18 patients with POP-Q grade III–IV pelvic organ prolapse treated by the Department of Gynecology of Nanjing Medical University Affiliated Changzhou No.2 People's Hospital from April 2020 to November 2020, and their post-operation follow-ups.

Interventions

Patients with postoperative follow-ups found no obvious relapse without intervention measures.

Measurements and Main Results

The transvaginal natural orifice transluminal endoscopic Sacrospinous Ligament Fixation was performed successfully, and the anterior and posterior walls of vagina and/or trans-vaginal hysterectomy were repaired as appropriate. Except the total vaginal length (TVL), the P values of numerical analysis for all points before, three months after, and six months after the operation were all <0.05, being statistically significant.

Conclusion

This method is effective in the treatment of moderate and severe pelvic organ prolapse with few complications, but more cases and longer-term follow-up data are needed to determine the long-term effect of this procedure. For the selection of puncture sites, more anatomical data are needed to get more accurate result.

Management of Pelvic Organ Prolapse (POP) and Rectal Prolapse

Pelvic organ prolapse (POP) is a condition wherein one or more of the organs in the pelvis slip down from their original position and protrude into the vagina. Pelvic organ prolapse surgery has increased in the urogynecological field due to higher aging society. POP patients often suffer from bowel dysfunction, such as difficulty of bowel movements and the need to strain or push on the vagina to have a bowel movement. Rectocele is often treated with the same method used for POP, but sometimes it is treated transanally. In the transabdominal approach, the vagina is divided from the rectum, and the mesh is fixed between the vagina and rectum.

On the other hand, rectal prolapse is a condition wherein the rectum slips down from its original position and protrudes from the anus. Like POP surgery, rectal prolapse has been treated laparoscopically. Even though the protruding position is different, both are pelvic conditions, and the concept of treatment is similar. Recently, POP and rectal prolapse have been diagnosed at the same time, and sometimes these diseases have been treated together.

In the higher aging society, incidences of POP and rectal prolapse will increase, and both will have greater chance to be treated. Although POP is a urogynecological disease, coloproctologists need to know the bowel dysfunction in order to treat POP.

New "Wrinkle Method" for Intracorporeal Anterior Vaginal Wall Plication during Sacrocolpopexy

In this study, we introduce a new wrinkle method for intracorporeal anterior vaginal wall plication during sacrocolpopexy for pelvic organ prolapse (POP) aiming to decrease POP recurrence and postoperative vaginal wall mesh erosion. The wrinkle method was performed using robotic sacrocolpopexy (RSC) on 57 symptomatic POP patients. Sixty-six patients underwent conventional RSC before the development of the wrinkle method. Feasibility and perioperative outcomes were compared. The wrinkle method is not time consuming. The total operative time was shorter in the wrinkle group than in the non-wrinkle group; however, this was attributed to lower adhesiolysis in the wrinkle group. No differences were recorded in the mean estimated blood loss and complication rates between the two groups. In conclusion, although we were unable to confirm that the wrinkle method decreased POP recurrence and vaginal wall mesh erosion after RSC because of the short follow-up period, our preliminary findings are positive in terms of safety. Further long-term well designed randomized controlled trials are required to elucidate the benefits of the wrinkle method.

Robotic-assisted laparoscopic sacrocolpopexy: Initial Canadian experience

INTRODUCTION

Abdominal sacrocolpopexy provides effective long-term outcomes for apical pelvic organ prolapse. The introduction of robotic-assisted laparoscopic sacrocolpopexy (RALS) has mitigated the risks of abdominal surgery. This study aims to evaluate the preoperative patient characteristics, intraoperative surgical parameters, and postoperative outcomes of RALS, which has not been previously performed in Canada.

METHODS

A retrospective chart review of 47 patients who have undergone RALS from 2016-2018 by a single surgeon at a tertiary care hospital in Canada was completed.

RESULTS

This case series had a mean age of 60.2 years, body mass index (BMI) of 28.3 kg/m², and Charlson comorbidity index of 2.0. Preoperatively, 13 (28%), 23 (49%), and 11 (23%) patients had Baden-Walker grade 2, 3, and 4 apical prolapse, respectively. Intraoperatively, 45 (96%) patients underwent concomitant procedures, including 36 (77%) with adnexal surgery, 32 (68%) with anti-incontinence surgery, and 25 (53%) with hysterectomy. Intraoperative complications included one ureteric injury, two bladder injuries, and three vaginotomies. The mean robotic console time, surgery time, and total operating room times were 125.6, 148.6, and 190.6 minutes, respectively. Postoperatively, data was analyzed for 32 (68%) patients with greater than 12 weeks' followup. There was no recurrence of apical prolapse on exam after a mean followup of 60.1 weeks. Seven (22%) patients experienced symptomatic prolapse in the posterior compartment. There were two grade 3 Clavien-Dindo complications, including osteomyelitis and mesh exposure.

CONCLUSIONS

RALS can be safely and effectively performed with other pelvic procedures with good outcomes. Concurrent posterior repairs may be considered in select patients.

Long-term mesh erosion rate following abdominal robotic reconstructive pelvic floor surgery: a prospective study and overview of the literature

Introduction and hypothesis

The use of synthetic mesh in transvaginal pelvic floor surgery has been subject to debate internationally. Although mesh erosion appears to be less associated with an abdominal approach, the long-term outcome has not been studied intensively. This study was set up to determine the long-term mesh erosion rate following abdominal pelvic reconstructive surgery.

Methods

A prospective, observational cohort study was conducted in a tertiary care setting. All consecutive female patients who underwent robot-assisted laparoscopic sacrocolpopexy and sacrocolporectopexy in 2011 and 2012 were included. Primary outcome was mesh erosion. Preoperative and postoperative evaluation (6 weeks, 1 year, 5 years) with a clinical examination and questionnaire regarding pelvic floor symptoms was performed. Mesh-related complications were assessed using a transparent vaginal speculum, proctoscopy, and digital vaginal and rectal examination. Kaplan–Meier estimates were calculated for mesh erosion. A review of the literature on mesh exposure after minimally invasive sacrocolpopexy was performed (≥12 months’ follow-up).

Results

Ninety-six of the 130 patients included (73.8%) were clinically examined. Median follow-up time was 48.1 months (range 36.0–62.1). Three mesh erosions were diagnosed (3.1%; Kaplan–Meier 4.9%, 95% confidence interval 0–11.0): one bladder erosion for which mesh resection and an omental patch interposition were performed, and two asymptomatic vaginal erosions (at 42.7 and 42.3 months) treated with estrogen cream in one. Additionally, 22 patients responded solely by questionnaire and/or telephone; none reported mesh-related complaints. The literature, mostly based on retrospective studies, described a median mesh erosion rate of 1.9% (range 0–13.3%).

Conclusions

The long-term rate of mesh erosion following an abdominally placed synthetic graft is low.

Electronic supplementary material

The online version of this article (10.1007/s00192-019-03990-1) contains supplementary material, which is available to authorized users

Robot-assisted surgery for the management of apical prolapse: a bi-centre prospective cohort study

OBJECTIVE

Robot-assisted surgery is a recognised treatment for pelvic-organ prolapse. Many of the surgical subgroup outcomes for apical prolapse are reported together, leading to a paucity of homogenous data.

DESIGN

Prospective observational cohort study (NCT01598467, clinicaltrials.gov) assessing outcomes for homogeneous subgroups of robot-assisted apical prolapse surgery.

SETTING

Two European tertiary referral hospitals.

POPULATION

Consecutive patients undergoing robot-assisted sacrocolpopexy (RASC) and supracervical hysterectomy with sacrocervicopexy (RSHS).

METHODS

Anatomical cure (simplified Pelvic Organ Prolapse Quantification, sPOPQ, stage 1), subjective cure (symptoms of bulge), and quality of life (Pelvic Floor Impact Questionnaire, PFIQ-7).

MAIN OUTCOME MEASURES

Primary outcome: anatomical and subjective cure.

SECONDARY OUTCOMES

surgical safety and intraoperative variables.

RESULTS

A total of 305 patients were included (RASC n = 188; RSHS n = 117). Twelve months follow-up was available for 144 (RASC 76.6%) and 109 (RSHS 93.2%) women. Anatomical success of the apical compartment occurred for 91% (RASC) and in 99% (RSHS) of the women. In all compartments, the success percentages were 67 and 65%, respectively. Most recurrences were in the anterior compartment [15.7% RASC (symptomatic 12.1%); 22.9% RSHS (symptomatic 4.8%)]. Symptoms of bulge improved from 97.4 to 17.4% (P < 0.0005). PFIQ-7 scores improved from 76.7 ± 62.3 to 13.5 ± 31.1 (P < 0.0005). The duration of surgery increased significantly for RSHS [183.1 ± 38.2 versus 145.3 ± 29.8 (P < 0.0005)]. Intraoperative complications and conversion rates were low (RASC, 5.3 and 4.3%; RSHS, 0.0 and 0.0%). Four severe postoperative complications occurred after RASC (2.1%) and one occurred after RSHS (1.6%).

CONCLUSIONS

This is the largest reported prospective cohort study on robot-assisted apical prolapse surgery. Both procedures are safe, with durable results.

TWEETABLE ABSTRACT

European bi-centre trial concludes that robot-assisted surgery is a viable approach to managing apical prolapse.

Role of robotic surgery on pelvic floor reconstruction

Over the past two decades, minimally invasive surgery (MIS) abdominal surgery has increasingly been used to treat pelvic organ prolapse. Besides the several advantages associated with minimal invasiveness, this approach bridged the gap between the benefits of vaginal surgery and the surgical success rates of open abdominal procedures. The most commonly performed procedure for suspension of the vaginal apex for postoperative vaginal prolapse by robotic-assisted laparoscopy is the sacrocolpopexy. Conventional laparoscopic application of this procedure was first reported in 1994 by Nezhat et al. and had not gained widespread adoption due to lengthy learning curve associated with laparoscopic suturing. Since FDA approval of the da Vinci® robot for gynecologic surgery in 2005, minimally invasive abdominal surgery for pelvic organ prolapse has become increasingly popular, as robotic-assisted laparoscopic sacrocolpopexy is an option for those surgeons without experience or training in the conventional route. Robotic surgery has made its way into the armamentarium of POP treatment and has allowed pelvic surgeons to adapt the "gold standard" technique of abdominal sacrocolpopexy to a minimally invasive approach with improved intraoperative morbidity and decreased convalescence. In fact, repair of pelvic organ prolapse can be performed robotically, and sometimes surgeons can feel suturing and dissection during the procedures less challenging with the assistance of the robot. However, even if robotic surgery may confer many benefits over conventional laparoscopy, these advantages should continue to be weighed against the cost of the technology. To date, as long-term outcomes, evidence about robotic sacrocolpopexy for a repair of pelvic organ prolapse are not conclusive, and much more investigations are needed to evaluate subjective and objective outcomes, perioperative and postoperative adverse events, and costs associated with these procedures. It is plausible to think that the main advantage is that robotics may lead to a widespread adoption of minimally invasive techniques in the field of pelvic floor reconstructive surgery. The following review will address the development and current state of robotic assistance in treating pelvic floor reconstruction discussing available data about the techniques of robotic prolapse repair as well as morbidity, costs and clinical outcomes.

Sexual function after robot-assisted prolapse surgery: a prospective study

Introduction and hypothesis

Female pelvic organ prolapse (POP) can severely influence sexual function. Robot-assisted surgery is increasingly used to treat POP, but studies describing its effect on sexual function are limited. The objective of this study was to evaluate sexual function after robot-assisted POP surgery.

Methods

This prospective cohort study included all patients who underwent a robot-assisted sacrocolpopexy (RASC) or supracervical hysterectomy with sacrocervicopexy (RSHS). Exclusion criteria were unknown preoperative sexual activity status or concomitant surgery. In sexually active women, sexual function was measured with the translated validated version of the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12). Changes in sexual activity were scored. Prolapse stages were described using the simplified Pelvic Organ Prolapse Quantification (S-POP) system.

Results

A total of 107 women were included (median follow-up 15.3 months). No difference was found in the total number of sexually active women before and after surgery [63 (58.9%) vs. 61 (63.5%), p = 0.999]. Significantly fewer women avoided sexual intercourse postoperatively compared with preoperatively. Preoperatively, sexual intercourse was avoided due to vaginal bulging (2% vs. 24%, respectively, p = 0.021). Total mean PISQ-12 scores improved significantly 1 year after prolapse correction (33.5 vs. 37.1; p = 0.004), mainly due to improved scores on the physical and behavioral–emotive domain. No significant difference in pre- and postoperative complains of dyspareunia was found.

Conclusion

Robot-assisted middle-compartment surgery improved sexual function 1 year after surgery according to enhanced physical and emotional scores. The total number of sexually active women and complains of dyspareunia before and after surgery did not differ.

Management of pelvic organ prolapse in the elderly - is there a role for robotic-assisted sacrocolpopexy?

Abdominal sacrocolpopexy is considered the gold standard treatment for symptomatic pelvic organ prolapse (POP). Since its introduction, robotic-assisted sacrocolpopexy has emerged as a popular minimally invasive alternative to open repair. Epidemiologic data suggest that the number of women seeking surgical treatment for POP will increase to ~50% by 2050, and many of these women will be elderly. Advanced age should not preclude elective POP surgery. Substantial data suggest that medical comorbidities and other preoperative markers may be more important than age in predicting adverse surgical outcomes. POP surgery in the elderly has been extensively studied and found to be safe, but there is a paucity of information regarding robotic-assisted sacrocolpopexy in this population. Data are only beginning to emerge regarding the safety and efficacy of robotic surgery in the elderly, with most studies focusing on oncologic procedures. Preliminary studies in this setting suggest that elderly patients may benefit from a minimally invasive approach, although given their limited physiologic reserves, appropriate patient selection is essential. The purpose of this review article is to evaluate the stepwise management of POP in the elderly female, with a focus on the safety and feasibility of a robotic approach.