Narrative review of the epidemiology, diagnosis and pathophysiology of pelvic organ prolapse

ABSTRACT The exact prevalence of pelvic organ prolapse is difficult to establish. The anatomical changes do not always consist with the severity or the symptoms associated with prolapse. There are many risk factors associated with pelvic organ prolapse and this review aims to identify the epidemiology and pathophysiology while looking at the known risk factors for pelvic organ prolapse. PubMed search involved a number of terms including: epidemiology, risk factors, reoccurrence indicators, management and evaluation. Several risk factors have been associated with pelvic organ prolapse, all contribute to weakening of the pelvic floor connective tissue/collagen, allowing the pelvic organs to prolapse through the vaginal walls. Among the risk factors are genetic background, childbirth and mode of delivery, previous hysterectomy, menopausal state and the ratio between Estrogen receptors. The "Integral theory" of Petros and the "Levels of Support" model of Delancey enable us to locate the defect, diagnose and treat pelvic organ prolapse. The currently available demographic data is not reliable enough to properly estimate the true extent of pelvic organ prolapse in the population. However, standardization of the diagnosis and treatment may significantly improve our ability to estimate the true incidence and prevalence of this condition in the coming years.

Narrative review of the epidemiology, diagnosis and pathophysiology of pelvic organ prolapse.

The exact prevalence of pelvic organ prolapse is difficult to establish. The anatomical changes do not always consist with the severity or the symptoms associated with prolapse. There are many risk factors associated with pelvic organ prolapse and this review aims to identify the epidemiology and pathophysiology while looking at the known risk factors for pelvic organ prolapse. PubMed search involved a number of terms including: epidemiology, risk factors, reoccurrence indicators, management and evaluation. Several risk factors have been associated with pelvic organ prolapse, all contribute to weakening of the pelvic floor connective tissue/collagen, allowing the pelvic organs to prolapse through the vaginal walls. Among the risk factors are genetic background, childbirth and mode of delivery, previous hysterectomy, menopausal state and the ratio between Estrogen receptors. The "Integral theory" of Petros and the "Levels of Support" model of Delancey enable us to locate the defect, diagnose and treat pelvic organ prolapse. The currently available demographic data is not reliable enough to properly estimate the true extent of pelvic organ prolapse in the population. However, standardization of the diagnosis and treatment may significantly improve our ability to estimate the true incidence and prevalence of this condition in the coming years.

A randomized clinical trial of knotless barbed suture vs conventional suture for closure of the uterine incision at cesarean delivery.

BACKGROUND: Knotless barbed sutures are monofilament sutures with barbs cut into them. These sutures self-anchor, maintaining tissue approximation without the need for surgical knots. OBJECTIVE: The hypothesis of this study was that knotless barbed suture could be used on the myometrium to close the hysterotomy at cesarean delivery. The objective was to compare uterine closure time, need for additional sutures, and blood loss between this and a conventional suture. STUDY DESIGN: This was a prospective, unblinded, randomized controlled trial conducted at the Ziv Medical Center, Zefat, Israel. The primary outcome was the length of time needed to close the uterine incision, which was measured from the start of the first suture on the uterus until obtaining uterine hemostasis. To minimize provider bias, women were randomized by sealed envelopes that were opened in the operating room just prior to uterine closure with either a bidirectional knotless barbed suture or conventional suture. Secondary outcomes included the number of additional hemostatic sutures needed and blood loss during incision closure. RESULTS: Patients were enrolled from August 2016 until March 2017. One hundred two women were randomized. Fifty-one had uterine closure with knotless barbed suture and 51 with conventional suture. The groups were similar for demographics as well as number of previous cesarean deliveries. Uterine closure time using the knotless barbed suture was significantly shorter than the conventional suture by a mean of 1 minute 43 seconds (P < .001, 95% confidence interval, 67.69-138.47 seconds). Knotless barbed sutures were associated with a lower need for hemostatic sutures (median 0 vs 1, P < .001), and blood loss measured during incision closure was significantly lower (mean 221 mL vs 268 mL, P < .005). CONCLUSION: The use of a knotless barbed suture is a reasonable alternative to conventional sutures because it reduced the closure time of the uterine incision. There was also less need for additional hemostatic sutures and slightly reduced estimated blood loss.

Team preparation for human uterus transplantation: Autologous transplantation in sheep model.

We performed autologous uterus transplantation using the living-sheep donor model for team preparation before human uterine transplantation. Five sequential operations (in 3 ewes) were prospectively conducted. Surgical technique included uterus retrieval, graft preparation, and uterus transplantation. Anastomoses were performed at the level of the external iliac. At 3-week follow-up, the uterus and anastomoses were checked for strictures and thrombosis. Two successful auto-transplantations were made, and one failed because of undeveloped uterine arteries (< 1 mm in diameter). In the first two ewes, we identified and used a deep, separate uterine vein, which was not described in other publications. In the third ewe, we used the utero-ovarian vein. The team was able to perform safe dissection and auto-transplantation, with no signs of strictures or thrombosis after 3 weeks. Cold ischemic time was 60 minutes, and warm ischemic time was between 40 and 60 minutes, with no need for re-anastomoses. We noticed that using the deep uterine vein in the sheep model can anatomically simulate better the human uterine vein and the difficulty to approach it. To avoid using unsuitable vessels for anastomoses, the uterine transplantation protocol in humans should include imaging of the donor's uterine vessels.

Efficacy and safety of skeletonized mesh implants for advanced pelvic organ prolapse: 12-month follow-up.

OBJECTIVE: To evaluate the efficacy and safety of skeletonized mesh implants for advanced pelvic organ prolapse (POP). METHODS: Women with advances POP underwent repair of stage III or greater anterior or posterior and apical compartment prolapse using skeletonized mesh implants (Seratom PA MR MN(®) system-SERAG-WIESSNER, Naila, Germany). Anatomical outcomes were assessed using pelvic organ prolapse quantification staging and functional outcomes were self-reported by the patients at 6 weeks, 6 and 12 months. Anatomical and functional cure rates, post-operative pain and dyspareunia as well as intra and post-operative complications were reported. Success was defined as a composite of no bulge symptoms and no prolapse beyond the hymenal ring. RESULTS: At 12 months, data were available for 103 of the 105 patients originally recruited. Intra-operative complications included 2 (2 %) cases of cystotomy that were corrected vaginally. The immediate post-operative complications included 1 patient (1 %) with UTI, 4 (3.9 %) cases of self-resolved hematomas, and 6 (5.8 %) cases of bladder outlet obstruction. At 12 months, a high success rate and low complication rate was noted. Recurrence of prolapse was reported by 7 (6.6 %) patients. However, only 4 (3.8 %) underwent a repeat procedure. Two patient developed de novo SUI, and 6 (5.7 %) developed dyspareunia. No cases of mesh erosion/extrusion were noted. CONCLUSION: The present study showed excellent anatomical and quality of life results in patients with advanced POP treated with a skeletonized and reduced mesh system. No mesh exposure was recorded within the first year after surgery.

Cystocele repair with single-incision, trocarless mesh system.

INTRODUCTION AND HYPOTHESIS: The use of mesh at the time of anterior vaginal wall repair reduced the risk of recurrent anterior vaginal wall prolapse. The aim of our video is to demonstrate our dissection technique focusing on the main anatomical landmarks in the pelvis and present an overall safer system to correct pelvic floor prolapse. METHODS: The video demonstrates correction of cystocele with the EndoFast Reliant™ system (IBI Israel Biomedical Innovations, Caesarea Industrial Park South, Israel). The surgical technique is described. RESULTS: Twenty-nine patients were treated with the system. Mean follow-up was 10 (range, 6-30) months. At latest follow-up, favorable anatomical results were obtained for 26 of 29 patients (89.6 %); three patients presented stage 1 nonsymptomatic prolapse. Three cases (13 %) of de novo stress urinary incontinence (SUI) and two cases of de novo urgency (6.9 %) were diagnosed and treated. Postoperative voiding difficulties, dyspareunia, or pain were not observed. CONCLUSION: The operation with the trocarless system was found to be safe, easy to learn and implement, and have the potential for reducing intra- and postoperative complications, with very satisfactory functional and anatomical results.

Acute urinary retention in an adolescent as the presenting symptom of lichen sclerosus et atrophicus.

BACKGROUND: A rare case of acute urinary retention caused by labial fusion in an adolescent is described and the possible causes are discussed. CASE: A 17-year-old girl, not sexually active, presented to our emergency service for acute urinary retention. Genital examination revealed labia minora fusion from the clitoris to the vaginal fourchette; urethra, and clitoris were not visualized. Sexual abuse and trauma were excluded. The labia minora were manually separated in the operating room revealing a normal vagina and urethral meatus. Skin biopsies taken from the fused labia minora revealed Lichen Sclerosus et Atrophicus. SUMMARY AND CONCLUSION: Urinary retention may be seen in the face of complete adhesion of the labia minora, a rare event in postpubertal individuals. In such cases, a suspicion of underlying pathology such as asymptomatic Lichen Sclerosus should be raised and be confirmed by a biopsy.

Single port laparoscopic sacrohysteropexy in a young patient presenting with grade III uterine prolapse and rectocele.

INTRODUCTION: Uterine preservation in patients with uterine prolapse is a common practice in the last decade and the reconstructive pelvic operation can be done either by vaginal, abdominal or laparoscopic approach. In young patients, uterine preservation is a legitimate option and one of the proposed operations is sacro-hystero-pexy. Single Port Laparoscopy (SPL) is a relatively new technique. This is a case of a young patient presented with grade III uterine prolapse and rectocele. METHODS: The video presents the surgical technique of sacro-hystero-pexy as was described in 2001 by von Theobald, adapted specifically for the SPL technique. CONCLUSIONS: The Single Port laparoscopy is an advanced laparoscopic technique. This video demonstrate that scaro-hystero-pexy can be done safely and efficacy with Single Port Laparoscopy without prolonging the operation time significantly.

Persistent pelvic pain following transvaginal mesh surgery: a cause for mesh removal.

OBJECTIVE: Persistent pelvic pain after vaginal mesh surgery is an uncommon but serious complication that greatly affects women's quality of life. Our aim was to evaluate various procedures for mesh removal performed at a tertiary referral center in cases of persistent pelvic pain, and to evaluate the ensuing complications and outcomes. STUDY DESIGN: A retrospective study was conducted at the University Hospital of Caen, France, including all patients treated for removal or section of vaginal mesh due to pelvic pain as a primary cause, between January 2004 and September 2009. RESULTS: Ten patients met the inclusion criteria. Patients were diagnosed between 10 months and 3 years after their primary operation. Eight cases followed suburethral sling procedures and two followed mesh surgery for pelvic organ prolapse. Patients presented with obturator neuralgia (6), pudendal neuralgia (2), dyspareunia (1), and non-specific pain (1). The surgical treatment to release the mesh included: three cases of extra-peritoneal laparoscopy, four cases of complete vaginal mesh removal, one case of partial mesh removal and two cases of section of the suburethral sling. In all patients with obturator neuralgia, symptoms were resolved or improved, whereas in both cases of pudendal neuralgia the symptoms continued. There were no intra-operative complications. Post-operative Retzius hematoma was observed in one patient after laparoscopy. CONCLUSIONS: Mesh removal in a tertiary center is a safe procedure, necessary in some cases of persistent pelvic pain. Obturator neuralgia seems to be easier to treat than pudendal neuralgia. Early diagnosis is the key to success in prevention of chronic disease.

Expression of estrogen receptors in the pelvic floor of pre- and post-menopausal women presenting pelvic organ prolapse.

The precise role of estrogen in the pathogenesis of pelvic organ prolapse (POP) is still unclear, while the results concerning the effect of selective estrogen receptor modulators on pelvic organ prolapse are contradictory. Our aim was to test whether alteration in the expression of estrogen receptors in the pelvic floor of pre- and post-menopausal women is related to genital prolapse status. The mRNA levels of ERα and ERß in 60 biopsy specimens were measured. Significantly higher expression of ERα and higher ERα/ERß ratio were demonstrated in post-menopausal women compared to pre-menopausal women. Higher expression of ERα and higher ERα/ERß ratio were detected in all studied groups with POP, thus it did not reach significance in the post-menopausal group. Pre-menopausal and post-menopausal women presenting pelvic organ prolapse had no difference in the ERα expression. Our preliminary study may indicate that pelvic organ prolapse is associated with higher expression of ERα/ERß in the pelvic floor of both pre- and post-menopausal women; thus not reaching statistical significance in the post-menopausal women was probably due to the group's size. We believe that the inevitable changes in the estrogen receptor expression over women's different lifetimes may affect the risk of genital prolapse progression, and might contribute to the further search for appropriate selective estrogen receptor modulators as a treatment for women with pelvic organ prolapse.

Mesh removal following transvaginal mesh placement: a case series of 104 operations.

INTRODUCTION AND HYPOTHESIS: The objective of the study was to reveal the way we treat vaginal mesh complications in a trained referral center. METHODS: This is a retrospective review of all patients who underwent surgical removal of transvaginal mesh for mesh-related complications during a 5-year period. RESULTS: Eighty-three patients underwent 104 operations including 61 complete mesh removal, 14 partial excision, 15 section of sub-urethral sling, and five laparoscopies. Main indications were erosion, infection, granuloma, incomplete voiding, and pain. Fifty-eight removals occurred more than 2 years after the primary mesh placement. Mean operation time was 21 min, and there were two intraoperative and ten minor postoperative complications. Stress urinary incontinence (SUI) recurred in 38% and cystocele in 19% of patients. CONCLUSIONS: In a trained center, mesh removal was found to be a quick and safe procedure. Mesh-related complications may frequently occur more than 2 years after the primary operation. Recurrence was mostly associated with SUI and less with genital prolapse.

Cystocele repair by transobturator four arms mesh: monocentric experience of first 123 patients.

INTRODUCTION AND HYPOTHESIS: The aims of the study were to evaluate the per- and post-operative complications and outcomes after cystocele repair with transobturator mesh. METHODS: A retrospective continuous series study was conducted over a period of 3 years. Clinical evaluation was up to 1 year with additional telephonic interview performed after 34 months on average. When stress urinary incontinence (SUI) was associated with the cystocele, it was treated with the same mesh. RESULTS: One hundred twenty-three patients were treated for cystocele. Per-operative complications occurred in six patients. After 1 year, erosion rate was 6.5%, and only three cystoceles recurred. After treatment of SUI with the same mesh, 87.7% restored continence. Overall patient's satisfaction rate was 93.5%. CONCLUSIONS: Treatment of cystocele using transobturator four arms mesh appears to reduce the risk of recurrence at 1 year, along with high rate of patient's satisfaction. The transobturator path of the prosthesis arms seems devoid of serious per- and post-operative risks and allows restoring continence when SUI is present.

[Anticoagulation in pregnant women with prosthetic heart valve--a new approach for therapy].

The treatment of women in childbearing age with a mechanical heart valve is a challenge for the medical staff. Warfarin (Coumadin) is considered to be a safe and effective anticoagulant for patients with prosthetic heart valves. However, treatment during pregnancy poses many difficulties, especially during the first trimester, due to its ability to cross the placenta and its associated fetotoxicity. Treatment with heparin during the first trimester decreases the rate of embryopathy, but increases maternal morbidity and mortality. Warfarin therapy throughout pregnancy, which is common mainly in Europe, carries low rates of maternal complications and roughly six percent of embryopathy. Several studies compared warfarin treatment throughout pregnancy versus treatment with heparin during the first trimester. The relationship between daily warfarin doses and the rate of embryopathy was recently investigated. We report two cases of pregnant women with mechanical heart valves who were treated with heparin during the first trimester. Both underwent an emergency replacement of the prosthetic valve during the eighth week of pregnancy. In this article, we review the literature regarding anticoagulation therapy in pregnant women with prosthetic heart valves; the comparison between treatment with warfarin throughout pregnancy and heparin in the first trimester; and the relation of daily warfarin doses with the rate of embryopathy. The two case reports demonstrate the common approach for therapy and the danger within it. In the discussion we present a new approach for treating pregnant women with prosthetic valve and guidelines for the medical staff.

Extrusion of fetus into the abdominal cavity following complete rupture of uterus: a case report.

A gravida 10 para 9, after one Cesarean section (CS) followed by four vaginal deliveries was admitted at term without uterine contractions complaining of abdominal pain. The type of uterine scar was unknown. Severe bradycardia was observed at admission and an emergency Cesarean section was performed. A complete uterine rupture was revealed, the fetus in intact membranes and placenta were found in the abdominal cavity.