Clinical analysis of pain after transvaginal mesh surgery in patients with pelvic organ prolapse

Comparing Patient-Reported Outcome Measures for Pain in Women With Pelvic Floor Disorders: A Scoping Review

Women with pelvic floor disorders (PFDs) typically undergo surgery involving transvaginal mesh implants; however, transvaginal mesh surgery is associated with many adverse events including post-surgical pain. Assessment of pain as a symptom is necessary using patient-reported outcome measures (PROMs). This scoping review aimed to describe and compare existing PROMs previously used to measure pain in women with PFDs. A scoping search of Ovid MEDLINE, EMBASE, CINAHL Plus, Ovid PsycInfo, and grey literature was conducted. Studies published in English describing the development, implementation, and application of PFD-associated pain PROMs among adult women before and after pelvic floor surgery were included. From each article, a descriptive summary organised by study first author, publication year, country, setting, aim, study characteristics, and results were extracted. From 2,604 articles identified, 54 studies were included, describing 44 PROMs. Most studies described at least 2 to 3 instruments. The Pelvic Floor Distress Inventory-20 was most commonly described by 12 studies followed by the Patient Global Impression of Improvement scale. Of the 44 PROMs, 27 were condition-specific, of which 9 included items on pain; 17 generic PROMs, 4 of which contained items on pain; and 6 pain-specific PROMs. PROMs identified in our review measured pain not related to PFDs or pelvic floor surgery and quantified the pain experienced. These PROMs did not measure all areas of pain including region, sensation, impact, and triggers. The findings of this review will assist with developing a new pain-specific PROM in this population. PERSPECTIVE: Women with pelvic floor disorders often undergo surgery involving transvaginal mesh, from which they experience debilitating pain. Pain is a major issue impacting women's lives. Patient-reported outcome measures can be used to assess the pain; however, it is unclear whether existing instruments are relevant.

Evaluating Non-ablative Erbium Yttrium Aluminium Garnet (YAG) Laser Treatment for Polypropylene Mesh-Induced Vaginal Erosion: A Case Series

Background Vaginal erosion caused by the polypropylene mesh is a serious side effect, and the development of effective treatment methods is required. This study explored the potential of non-ablative vaginal erbium yttrium aluminum garnet (YAG) laser treatment (VEL) as a novel treatment approach. Methods In this study, VEL was performed on nine women who experienced vaginal erosion after undergoing treatment for pelvic organ prolapse (POP) with polypropylene mesh. These patients visited our hospital between April and December 2020. Using the Renovalase (SP Dynamis Fotona d.o.o., Ljubljana, Slovenia), the laser was applied to the entire vagina, with intensive irradiation focused on the erosion areas. Detailed analyses of symptoms before and after treatment, as well as histopathological changes, were conducted one year post-treatment. Results Nine women were referred to our hospital due to vaginal erosion caused by polypropylene mesh. The participants' average age was 73.2 years (range: 69-81 years), with four patients having undergone transvaginal mesh (TVM) surgery and five undergoing laparoscopic sacrocolpopexy (LSC). The average time from mesh insertion to treatment initiation was 7.2 years (range: 3-15 years), with eight patients having previously attempted mesh removal. Post-treatment, significant improvements were observed in managing vaginal erosion and related bleeding, corroborated by histopathological analysis confirming cell regeneration and tissue repair. These improvements also resulted in significant improvements in bleeding management and quality of life (QoL). Conclusion VEL suggests the possibility of being an effective treatment method for vaginal erosion caused by a polypropylene mesh. However, further research is needed because of the small sample size and the limitations inherent in the retrospective case series design.

Host-biomaterial interactions in mesh complications after pelvic floor reconstructive surgery

Polypropylene (PPL) mesh is widely used in pelvic floor reconstructive surgery for prolapse and stress urinary incontinence. However, some women, particularly those treated using transvaginal PPL mesh placement for prolapse, experience intractable pain and mesh exposure or extrusion. Explanted tissue from patients with complications following transvaginal implantation of mesh is typified by a dense fibrous capsule with an immune cell-rich infiltrate, suggesting that the host immune response has a role in transvaginal PPL mesh complications through the separate contributions of the host (patient), the biological niche within which the material is implanted and biomaterial properties of the mesh. This immune response might be strongly influenced by both the baseline inflammatory status of the patient, surgical technique and experience, and the unique hormonal, immune and microbial tissue niche of the vagina. Mesh porosity, surface area and stiffness also might have an effect on the immune and tissue response to transvaginal mesh placement. Thus, a regulatory pathway is needed for mesh development that recognizes the roles of host and biological factors in driving the immune response to mesh, as well as mandatory mesh registries and the longitudinal surveillance of patients.