Symptoms Of Obstructed Defecation Research Articles

Surgical and Functional Outcome of Laparoscopic Vaginal Suspension Combined with Suture Rectopexy for Management of Pelvic Organ Prolapse

Abstract Purpose Laparoscopic techniques to treat pelvic organ prolapse are gaining popularity around the globe due to their low recurrence rates and better functional results compared to perineal techniques. However, the optimum surgical procedures are not yet determined. In the current research, we suggest a novel surgical approach, laparoscopic vaginal suspension with suture rectopexy, to treat multiorgan pelvic prolapse. Methods This prospective cohort trial was conducted from March 2018 to March 2022 and comprised 35 females with multiorgan pelvic organ prolapse with obstructed defecation symptoms. A residual rectal prolapse was still present despite the manual reduction of uterine prolapse. Patients' conditions before and after the operation were monitored regarding the obstructed defecation score, sexual function, need for laxatives, anorectal manometry pressures, anorectal sensations, and recurrence. The mean follow-up duration was one year. Results Modified Longo score for obstructed defecation significantly decreased at six and twelve months after surgery. Additionally, a significant reduction was reported in the number of patients who needed laxatives at six and twelve months after surgery. Anorectal manometry pre- and post-surgery showed a significant elevation in the mean squeeze pressure and a decline in all rectal sensations. All parameters of the female sexual function scoring system increased postoperatively. No recurrence was reported during follow-up. Conclusion For multiorgan pelvic prolapse, laparoscopic vaginal suspension combined with suture rectopexy has excellent functional outcomes, minimal morbidity, and low cost.

Outcome of endo-anal ultrasound-guided injection of botulinum toxin type-A therapy in puborectalis muscle in patients with anismus

Background Anismus is a functional disorder characterized by dyssynergia and incoordination of pelvic floor muscular contractions at defecation. Despite normal propulsive power used when attempting to defecate, a hypertonic pelvic floor dysfunction results in nonrelaxation or even paradoxical contraction of puborectalis muscle, resulting in failure to straighten the anorectal angle, hence impaired stool evacuation. This study aims at evaluating the outcome of injection of botulinum toxin type-A (BTX-A) in puborectalis muscle in patients with anismus. Patients and methods The study included 50 patients who were presented with symptoms of obstructed defecation (OD) and were diagnosed as anismus and failed conservative treatment and biofeedback training. Ultrasound-guided BTX-A injections into puborectalis muscle were done. All patients were followed up for 6 months for OD symptoms and manometric findings. Results The current study included 50 patients with a mean age of 36.6±11.9 years presented with anismus for a mean duration of 6.8±2.64 months. There was a statistically significant improvement in the Longo score of OD at 1, 3, and 6 months when compared with the initial values (P<0.001), while there was no statistically significant difference noticed in the defecation frequency at 3 and 6 months when compared with the initial records. There was a statistically significant decrease in both resting and squeeze pressures after 3 and 6 months when compared with the initial records (P<0.001). The overall satisfaction significantly increased to 68 and 64% after 3 and 6 months, respectively, when compared with 0% satisfaction reported at the initial assessment. Conclusion According to the current results, injection of BTX-A therapy in puborectalis muscle in patients with anismus is assumed to be effective for short term with good overall satisfaction.

Laparoscopic ventral mesh rectopexy vs. transperineal mesh repair for obstructed defecation syndrome associated with rectocele: comparison of selectively distributed patients

PurposeObstructed defecation syndrome represents 50–60% of patients with symptoms of constipation. We aimed to compare the two frequently performed surgical methods, laparoscopic ventral mesh rectopexy and transperineal mesh repair, for this condition in terms of functional and surgical outcomes.MethodsThis study is a retrospective review of 131 female patients who were diagnosed with obstructed defecation syndrome, attributed to rectocele with or without rectal intussusception, enterocele, hysterocele or cystocele, and who underwent either laparoscopic ventral mesh rectopexy or transperineal mesh repair. Patients were evaluated for surgical outcomes based on the operative time, the length of hospital stay, operative complications, using prospectively designed charts. Functional outcome was assessed by using the Initial Measurement of Patient-Reported Pelvic Floor Complaints Tool.ResultsFifty-one patients diagnosed with complex rectocele underwent laparoscopic ventral mesh rectopexy, and 80 patients diagnosed with simple rectocele underwent transperineal mesh repair. Mean age was found to be 50.35 ± 13.51 years, and mean parity 2.14 ± 1.47. Obstructed defecation symptoms significantly improved in both study groups, as measured by the Colorectal Anal Distress Inventory, Constipation Severity Instrument and Patient Assessment of Constipation-Symptoms scores. Minor postoperative complications including wound dehiscence (n = 3) and wound infection (n = 2) occurred in the transperineal mesh repair group.ConclusionLaparoscopic ventral mesh rectopexy and transperineal mesh repair are efficient and comparable techniques in terms of improvement in constipation symptoms related to obstructed defecation syndrome. A selective distribution of patients with or without multicompartmental prolapse to one of the treatment arms might be the preferred strategy.

Increased Grades of Rectal Intussusception: Role of Decline in Pelvic Floor Integrity and Association With Dyssynergic Defecation.

The natural history of rectal intussusception (RI) is poorly understood. We hypothesized that decline in pelvic floor integrity and function leads to increasing RI grades. Retrospective analysis of a registry of patients with defecatory disorders with high-resolution anorectal manometry and magnetic resonance defecography was performed. Association of risk factors on increasing RI grades was assessed using logistic regression. Analysis included a total of 238 women: 90 had no RI, 43 Oxford 1-2, 49 Oxford 3, and 56 Oxford 4-5. Age ( P = 0.017), vaginal delivery ( P = 0.008), and prior pelvic surgery ( P = 0.032) were associated with increased Oxford grades. Obstructive defecation symptoms and dyssynergic defecation were observed at relatively high rates across groups. Increased RI grades were associated with less anal relaxation at simulated defecation yet, higher rates of normal balloon expulsion ( P < 0.05), linked to diminished anal sphincter. Indeed, increased RI grades were associated with worsening fecal incontinence severity, attributed to higher rates of anal hypotension. Levator ani laxity, defined by increased levator hiatus length and its excessive descent at straining, was associated with increasing RI grades, independent of age, history of vaginal delivery, and pelvic surgeries and could independently predict increased RI grades. Concurrent anterior and posterior compartments, and visceral prolapse were associated with higher Oxford grades. Our data suggest that decline in pelvic floor integrity with abnormal levator ani laxity is associated with increased RI grades, a process that is independent of age, history of vaginal deliveries, and/or pelvic surgeries, and perhaps related to dyssynergic defecation.

Moving from Laparoscopic Synthetic Mesh to Robotic Biological Mesh for Ventral Rectopexy: Results from a Case Series.

Introduction: Laparoscopic ventral mesh rectopexy (VMR) is the standard procedure for the treatment of posterior pelvic organ prolapse. Despite significant functional improvement and anatomical corrections, severe complications related to mesh augmentation can occur in a few proportions of patients. In order to decrease the number of rare but severe complications, we developed a variant of the conventional VMR without any rectal fixation and using a robotic approach with biological mesh. The aim of this study was to compare the results of laparoscopic ventral rectopexy with synthetic mesh (LVMRS) to those of robotic ventral rectopexy with biological mesh (RVMRB). Methods: Between 2004 and 2021, patients operated on for VMR in our unit were identified and separated into two groups: LVMRS and RVMRB. The surgical technique for both groups consisted of VMR without any rectal fixation, with mesh distally secured on the levator ani muscles. Results: 269 patients with a mean age of 62 years were operated for posterior pelvic floor disorder: rectocele (61.7%) and external rectal prolapse (34.6%). 222 (82.5%) patients received LVMRS (2004-2015), whereas 47 were operated with RVMRB (2015-2021). Both groups slightly differed for combined anterior fixation proportion (LVMRS 39% vs. RVMRB 6.4%, p < 0.001). Despite these differences, the length of stay was shorter in the RVMRB group (2 vs. 3 days, p < 0.001). Postoperative complications were comparable in the two groups (1.8 vs. 4.3%, p = 0.089) and mainly consisted of minor complications. Functional outcomes were favorable and similar in both groups, with an improvement in bulging, obstructed defecation symptoms, and fecal incontinence (NS in subgroup analysis). In the long term, there were no mesh erosions reported. The overall recurrence rate was 11.9%, and was comparable in the two groups (13% LVMRS vs. 8.5, p = 0.43). Conclusions: VMR without rectal fixation is a safe and effective approach in posterior organ prolapse management. RVMRB provides comparable results in terms of recurrence and functional results, with avoidance of unabsorbable material implantation.

Prevalence and severity of bowel disorders in the third trimester of pregnancy

Bowel-related disorders are common conditions associated with pregnancy and are a cause of significant distress and healthcare burden. However, there is a lack of data in the literature about these disorders. This study aimed to investigate bowel dysfunctions during the third trimester of pregnancy in a large cohort of women using the validated bowel domain of the Italian version of the Pelvic Floor Questionnaire for Pregnant and Postpartum Women. This was a secondary analysis of a multicenter cross-sectional study conducted in hospitals in Italy and Italian-speaking Switzerland. Women in the third trimester of pregnancy were asked to complete the Italian Pelvic Floor Questionnaire for Pregnant and Postpartum Women. During the study period, 927 pregnant women in the third trimester of pregnancy responded to the questionnaire and were included in the analysis. Overall bowel dysfunctions were reported by 29.6% of patients. Constipation was reported by 66.6% of pregnant women, whereas symptoms of obstructed defecation were reported by 49.9% of patients. In contrast, urgency was reported by 41.1% of patients. Incontinence to flatus and incontinence to stool were reported by 45.1% and 2.8% of patients, respectively. Moreover, age >35 years, familiarity with pelvic floor disorders, nicotine abuse, and pelvic floor contraction inability were identified as independent risk factors for at least 1 bowel symptom. Bowel symptoms are extremely common in the third trimester of pregnancy and can greatly affect a patient's quality of life; therefore, bowel symptoms deserve to be investigated and managed properly. The use of validated questionnaires represents a precious tool to investigate functional symptoms that could be very frequent and disabling in this particular period of life for women.

Assessment of feasibility of abdominal mesh vaginorectopexy in the repair of multiple pelvic organ prolapse

ABSTRACT Introduction Pelvic organ prolapse (POP) is the descent of one or more aspects of the vagina and uterus, while rectal prolapse (RP) is the protrusion of the rectum through the anal canal. Multiple POP is combined prolapse of more than one pelvic organ and it is ideally surgically treated. Vaginorectopexy is a modification of the classical ventral mesh rectopexy which may be used in case of combined prolapse of multiple pelvic organs where a polypropylene mesh is used to support pelvic tissues and repair prolapse. Aim To assess the feasibility of open abdominal mesh vaginorectopexy in the repair of multiple POP. Patients and methods This study was carried out on 20 female patients who underwent open abdominal mesh vaginorectopexy for the repair of multiple POP. Results All the cases who complained of complete RP and 90% of cases who complained of uterine prolapse were cured, while symptoms of obstructed defecation were significantly improved in 95% of cases, of which 35% were completely cured. Fecal incontinence was significantly improved in 100% and significantly cured in 80% of cases, urinary incontinence was significantly cured in 75% of cases, and 94.4% of the cases who presented with urinary symptoms (dysuria and urgency), were treated at 12 months post surgery. There was no statistically significant postoperative complications. Conclusion Abdominal mesh vaginorectopexy for the repair of multiple pelvic organ is feasible and can result in significant improvement of function and quality of life.

S167 Comparison of High-Resolution Anorectal Manometry and Magnetic Resonance Defecography in Patients With Obstructive Defecation: Are Both Tests Necessary?

Introduction: Investigation of evacuation disorders is often pursued in patients with symptoms of obstructive defecation. High-resolution anorectal manometry (HR-ARM) is a simple, safe and widely available test to diagnose pelvic floor dysfunction. A more costly and less accessible test is magnetic resonance defecography (MRD). This study aims to qualify the added value of MRD in diagnosing pelvic floor disorders. Methods: HR-ARM and MRD performed in patients with a diagnosis of constipation between 1/1/2020 and 5/15/22 at Mayo Clinic were identified using Epic SlicerDicer. Univariate and multivariate analyses were used to compare findings on MRD in patients with and without abnormal HR-ARM. Results: Seventy-six consecutive patients (81.8% female, 94.8% white, age 19-82) who underwent both HR-ARM and MRD were included. The majority had evidence of dyssynergia on HR-ARM (n=49, 64.5%). Patients with dyssynergia on HR-ARM were significantly more likely to have prolonged balloon expulsion at both >60 and >30 seconds (p< 0.00001) and incomplete gel expulsion on MRD (p=0.00008) (Table). However, they were not more likely to have a clinically significant rectocele measuring >2cm (p=0.5093) or evidence of rectal prolapse (p=0.071). An increased number of vaginal deliveries was correlated with a higher likelihood of having a rectocele >2cm (r=0.24, p< 0.05). Conclusion: Anatomic findings on MRD were similar between patients with and without evidence of dyssynergia identified by HR-ARM. In this retrospective review, undergoing MRD in addition to HR-ARM does not appear to provide additional diagnostic information to guide therapeutic recommendations. Large prospective studies to evaluate the added value of MRD are needed. Table 1. - Findings on MRD and balloon expulsion test in patients with and without dyssynergia on HR-ARM Dyssynergia on HR-ARM No dyssynergia on HR-ARM P value n= 49 (64.5%) n = 27 (35.5%) Balloon Expulsion >60 sec 30 (61.2%) 0 (0.0%) p< 0.00001 Balloon Expulsion >30 sec 32 (65.3%) 2 (7.4%) p< 0.00001 < 50% gel expulsion on MR 26 (53.1%) 2 (7.4%) p=0.00008 Rectocele on MR 26 (53.1%) 22 (81.5%) p=0.0139 >2 cm Rectocele on MR 21 (42.9%) 16 (59.3%) p=0.5093 >3 cm Rectocele on MR 10 (20.4%) 9 (33.3%) p=0.2113 >4 cm Rectocele on MR 3 (6.1%) 3 (11.1%) p=0.4413 Rectal Prolapse 5 (10%) 7 (31.8%) p=0.071

Pelvic pain is a common prolapse symptom and improvement after ventral mesh rectopexy is more frequent than deterioration or de novo pain.

The aim of this work was to assess the relationship between pelvic pain and rectal prolapse both before prolapse surgery and in the long term after ventral mesh rectopexy (VMR). Patients undergoing VMR between 2004 and 2017 were contacted. Outcomes including the severity of pelvic pain were recorded using a numeric rating scale. Four hundred and seventy eight of the 749 patients (64%) were successfully contacted. Of these, 39% reported pre-existing pelvic pain prior to VMR (group A) and 61% were pain free (group B). The median follow-up time was 8.0 years (interquartile range 5.0-10.0 years). Symptoms of obstructed defaecation were significantly more common (p= 0.002) in group A (91/187, 49%) than in group B (101/291, 35%). In contrast, faecal incontinence was more common (p= 0.007) in group B (75/291, 26%) than in group A (29/187, 15%). In group A, 76% showed improvement in pelvic pain after VMR: 61% were pain free and 39% had partial improvement in their pre-existing pelvic pain. Patients with persistent pelvic pain were younger (p= 0.01) and more likely to have revisional surgery after VMR (p= 0.0003), but there was no relation to the indication for surgery (p= 0.59). In group B, 15% reported de novo pelvic pain after VMR, and this was more common in women under 50 years old (p= 0.001), when obstructed defaecation was the indication (p= 0.03), in mesh erosion (p= <0.05) and when associated with revisional surgery (p= 0.005). Pelvic pain is common (39%) in patients undergoing prolapse surgery, and VMR improves this pain in most patients (76%). However, a significant number of patients fail to improve (12%), experience worsening of pain (12%) or develop de novo pelvic pain (15%).

Native Tissue Posterior Compartment Repair for Isolated Posterior Vaginal Prolapse: Anatomical and Functional Outcomes.

Background and Objectives: Posterior compartment prolapse is associated with constipation and obstructed defecation syndrome. However, there is still a lack of consensus on the optimal treatment for this condition. We aim to investigate functional, anatomical, and quality-of-life outcomes of native tissue transvaginal repair of isolated symptomatic rectocele. Materials and Methods: We retrospective analyzed patients who underwent transvaginal native tissue repair for stage ≥ II and symptomatic posterior vaginal wall prolapse between January 2018 and June 2021. Anatomical and functional outcomes were evaluated. Wexner constipation score was used to assess bowel symptoms, while the Patient Global Impression of Improvement (PGI-I) score was used to evaluate subjective satisfaction after surgery. Results: Twenty-eight patients were included in the analysis. The median age was 64.5 years, and half of them underwent a previous hysterectomy for benign reasons. The median follow-up time was 33.5 months. A significant anatomical improvement in the posterior compartment was noticed compared with preoperative assessment (p < 0.001 for Ap and Bp), with only two (7.1%) anatomical recurrences. Additionally, obstructed defecation symptoms decreased significantly compared to baseline (p < 0.001), as well as vaginal bulging, with no new-onset cases of fecal incontinence or de novo dyspareunia. PGI-I resulted in 89.2% of patients being satisfied (PGI-I ≥ 2), with a median score of 1.5. Conclusions: Transvaginal native tissue repair for isolated posterior prolapse is safe and effective in managing bowel symptoms, with excellent anatomical and functional outcomes and satisfactory improvement in patients’ quality of life.

Efficiency and safety of laparoscopic ventral mesh rectopexy (a systematic review)

Aim: to assess the efficacy and safety of laparoscopic ventral mesh rectopexy in patients with rectocele and rectal prolapse. Materials and methods: a systematic review of the literature on the efficacy and safety of laparoscopic ventral mesh rectopexy in patients with rectocele and/or rectal prolapse. After compiling a search query, 2716 publications were found in the PubMed, MEDLINE, EMBASE, Scopus, Cochrane library, CENTRAL, ISI Web of Science and eLibrary databases. Twenty-four papers were selected according to the inclusion criteria for the review, with a total number of 2101 operated patients. Results: the follow up period after surgery ranged 30.1 (12-74) months. In 20 of 34 studies, the median age of patients was over 60 years, with a median of 62.1 years. The mean operative time was 122.3 minutes (85 to 200 minutes). Complications were revealed in 138 patients (6.5 % observations), recurrence — in 4.1 %. A significant improvement in the symptoms of obstructive defecation was noted in 79.6 %. Conclusion: laparoscopic ventral mesh rectopexy is an effective method for posterior pelvic floor compartment prolapse in terms of both anatomical and functional results. It is safe and has a low risk of complications. However, further research is required to develop indications for the use of this proctdure as a “gold standard”.

Reconstruction of the rectovaginal septum with a W-mesh for rectocele

Aim: to assess of late results of original method of rectocele repair with non-absorbable polypropylene W-form mesh. Patients and methods: the pilot study included 37 patients which underwent surgery for rectocele repair using original technique of W-mesh. The late results were assessed in 21 (56.6 %) of them ≥ 6 month after surgery. Before the surgery and 6 months after, patients underwent a clinical assessment of symptoms. Specialized questionnaires for assessment of constipation (Colonic evacuation disorder scale, PFDI-20, Cleveland Clinic Constipation Score) were used. Defecography and anorectal manometry were performed before and in 6-months after surgery for evaluation of pelvic floor disorders. Results: no obstructive defecation symptoms were revealed in 85.7% of patients 6 month after surgery.In ≥ 6 months after surgery all questionnaires showed decrease in scores by more than 2 times. Comparison of the results before and 6 months after the surgery showed significant differences for all questionnaires (p &lt; 0.0001). According to defecography performed before and after the surgery a significant reduction (p &lt; 0.05) of rectocele depth, time of rectal voiding (decreased by 1.5 times) and residual volume of contrast agent (decreased by 2.5 times) were revealed. There are no severe complications requiring re-operation were observed. Conclusion: transvaginal mesh repair of symptomatic rectocele demonstrated good clinical results 6 months after surgery. Good results were revealed in 85,7 % of patients confirmed by specialized questionnaires and defecography.

Does parity impact obstructed defecation in women with normal anorectal anatomy?

Obstructed defecation (OD) is often associated with trauma to pelvic connective tissue and nerves sustained during pregnancy and childbirth. Although there are multiple potential etiologies of defecatory dysfunction, the pathophysiology of this symptom complex is not well understood. The purpose of this study is to determine the role of parity in the development of obstructed defecatory symptoms in women with normal anorectal anatomy in a search for evidence of a presumptive neuropathic effect of pregnancy and childbirth. This study retrospectively evaluated the records of 754 women presenting at a tertiary urogynecology unit for pelvic floor dysfunction with no anatomical abnormalities of the anorectum on imaging. They were stratified according to parity. The authors determined the prevalence of obstructed defecation symptoms in these groups. Chi-squared test was performed for statistical analysis. Median age was 51 (range 16-88) years, and median vaginal parity was 2 (0-8); 399 (53%) women reported symptoms of OD. When anatomical abnormalities of the anorectum were excluded, parity did not seem to have a major effect on the prevalence of symptoms of OD. In this cohort, parity is unlikely to be a cause of OD in women with normal anorectal anatomy.

Does Rectocele Repair Combined with Other Perineal Surgeries Affect Outcome Compared to Solo Rectocele Repair?

Objectives: Rectocele is common in female patients. To date, there is no literature comparing outcomes of rectocele repairs in combination with other perineal surgeries. We aim to analyze perioperative morbidity and mortality as well as long-term outcome of rectocele repair in combination with other perineal surgeries (RR combination) and compare this with solo rectocele repair (solo RR). Design: The type of study was case-control. Data of patients who received solo rectocele repair or rectocele repair in combination with other perineal surgeries between January 2011 and December 2015 were identified and reviewed in a prospectively maintained and IRB-approved database. Ninety-eight patients were included, including 41 patients in the solo RR group and 57 patients in the RR combination group. The demographics, characteristics of patients, short-term complications, long-term complications, and morbidity of the 2 groups were observed. Methods: The demographics, characteristics of patients, short-term complications, long-term complications, and morbidity of the 2 groups were compared, respectively. Covariate adjustment was analyzed by multivariate logistic and Cox regression analysis. Results: Ninety-eight patients with a median age of 57 were included, involving 41 patients in the solo RR group and 57 patients in the RR combination group. Other than the operative approach (p < 0.01), demographics and preoperative characteristics of the 2 groups were comparable. All variables, including length of stay, estimated blood loss, self-limiting rectal bleeding, transfusion, urinary retention, rectal stricture, rectal and perineal infection, rectovaginal abscess, reoperation, effective resolution of obstructive defecation symptoms, residual symptoms rate, and recurrence rate, were comparable among the 2 groups except for operative time (p = 0.03). Limitations: This study is a single-center study, which may cause bias. In addition, the sample size is limited. Staging of rectocele and routine imaging studies were not performed. Conclusions: Rectocele repair in combination with other perineal surgeries is feasible, and outcomes are comparable with solo rectocele repair. Transanal versus transvaginal repairs appear to have no influence on outcomes.

Primary diffuse large B-cell lymphoma of the sigmoid colon.

IntroductionExtranodal lymphomas are commonly encountered in the gastrointestinal tract but lymphomas of colon and rectum are rare. Non-Hodgkin lymphoma is the most common type of colonic lymphoma and represents less than 0.5% of colorectal neoplasms. Chemotherapeutical agents are gateway to disease remission and sometimes cure in most patients but surgery may be necessary in emergent situations.Case presentationA 77-year-old male patient presented with abdominal discomfort, constipation, and obstructive defecation symptoms. Radiological imaging revealed a mass in the sigmoid colon extending towards the rectum. Colonoscopy was performed and biopsy of a nearly 10 cm ulcerovegetative lesion was obtained. Histological examination following biopsy revealed it to be a diffuse large B-cell lymphoma of the sigmoid colon. There was no indication for surgery and the patient was referred to medical oncology clinic for chemotherapy treatment.DiscussionNon-Hodgkin lymphoma is a lymphoproliferative disorder with the diffuse large B cell lymphoma (DLBCL) being the most common subtype. The DLBCL subtype is rarely observed in the colon and rectum. Chromosomal abnormalities are involved in the pathophysiology and gene rearrangements lead to adjustments in lymphocyte function and differentiation.ConclusionIn this case report, we present a rare presentation of a Non-Hodgkin lymphoma presenting in the sigmoid colon. The disease can present with nonspecific symptoms and various imaging modalities along with histopathological evaluation is necessary for the correct subtyping of lymphoma. Chemoradiotherapy is key for treatment, and surgery is usually reserved for cases of obstruction, perforation, or bleeding.

CORRELATION BETWEEN PELVIC FLOOR DYSFUNCTION ON DYNAMIC 3D ULTRASOUND AND VAGINAL DELIVERY, PARITY, AND AGE IN WOMEN WITH OBSTRUCTED DEFECATION SYMPTOMS.

Few studies have investigated the constipation or obstructed defecation symptoms identified by using imaging, as dynamic three-dimensional ultrasound and correlate vaginal delivery, parity, and age. The aim of this study was to assess the prevalence of pelvic floor dysfunctions in female patients with obstructed defection symptoms and to determine whether specific pelvic floor dysfunctions identified by dynamic three-dimensional ultrasonography (echodefecography) are correlated with vaginal delivery, parity, and age. The secondary goal is to report the prevalence of coexisting pelvic floor dysfunctions. This is a retrospective cohort study including patients with obstructed defecation symptoms underwent echodefecographyto evaluate pelvic floor dysfunctions in the posterior compartment and correlate with vaginal delivery, parity, and age. Of 889 female: 552 (62%) had had vaginal delivery and 337 (38%) were nulliparous. The prevalence of dysfunctions identified by echodefecography (rectocele, intussusception, enterocele/sigmoidocele, and dyssynergia) was similar between the two groups and was not associated with number of deliveriesor age. However, the prevalence of sphincter defects showed higher rates in women with vaginal delivery and increased with the parity. Up to 33% of patients had coexisting dysfunctions. The prevalence of dysfunctions such as rectocele, intussusception, dyssynergia, and enterocele/sigmoidocele assessed by echodefecography in patients with obstructed defecation symptoms are found similar regardless of vaginal delivery, number of deliveries or stratified-age. In vaginal delivery, number of deliveries does impact on detection of sphincter defects and liability to fecal incontinence.

Trends in the surgical management of rectal prolapse: An Asian experience.

Posterior compartment pelvic floor prolapse (PCPFP) leads to anatomical distortion and functional impairment. Definitive management involves surgery. Ventral mesh rectopexy (VMR) has gained increasing popularity in the West as it emerges as a durable approach. Existing literature and evidence on safety and efficacy of PCPFP surgery in the Asian population remains sparse. Our study aims to review our institution's experience in surgery for PCPFP. All cases of PCPFP surgery in Singapore General Hospital between 2014 to 2019 were studied. Eighty-three patients had surgery performed for PCPFP, with the majority (83%) in the last 3 years. Median age was 63 years and 92% were female. Most patients (64%) had obstructive defecation symptoms, while the remaining had fecal incontinence, rectal bleeding, or anal discomfort. Main anatomical indication for surgery was external rectal prolapse (48%). Other indications were rectocele and/or rectal intussusception. The majority (66%) had abdominal rectopexy, while 28 underwent Delorme's procedure. Forty-five of the 50 VMRs were minimally invasive. Patients undergoing rectopexy were observed to be younger. Median length of stay was 3 days. Nine patients had early operative complications of which ileus was most common. Median length of follow-up was 12 months. The majority (93%) had initial symptom satisfaction. Eleven patients had anatomical recurrence with a median length of 9months to development. There was no significant difference in outcomes between abdominal vs perineal approach, or laparoscopic vs robotic VMR. Surgery for PCPFP has gained acceptance in our Asian institution with good symptom improvement, alongside low morbidity and recurrence.

Clinical, endoscopic and radiological assessment of patients with obstructed defecation: findings and management at a District General Hospital

Background: The aim of the study was to determine the diagnostic value of clinical, endoscopic and proctographic assessment as well as clinical outcomes in patients with obstructed defaecation (OD). The study also examined correlation between clinical/endoscopic findings and proctogram in the diagnosis of rectocele and intra-rectal intussusception (IRI).Methods: Patients presenting with symptoms of OD between January-December 2018 were assessed with manual examination, endoscopy and defecation proctogram. Patients were followed for 2-3 years for clinical outcomes.Results: There were 65 female (97.01%) and 2 male patients (2.98%), with an average age of 57.77 (34-88) years. Main indications were OD, altered bowels, faecal urgency and rectal bleeding. A total of 67 X-ray defecating proctograms and 77 endoscopies were performed. Main findings on clinico-endoscopic examination were IRI (44), rectocele (36) and haemorrhoids (21). Main findings on proctogram were rectocele (59), IRI (56) and enterocele (13). Endoscopic assessment showed sensitivity: 55.93%, specificity: 62.50% and accuracy: 56.72% in diagnosing rectocele when compared with the diagnostic confirmation on proctogram. Combining manual assessment with endoscopic findings improved sensitivity (76.27%) and accuracy (68.66%). Similar improvement was also noted in the sensitivity (61.40 to 66.67%), specificity (47 to 58%), and accuracy (53.73 to 58.21%) in diagnosing IRI when compared with the diagnostic confirmation on proctogram. Majority of the patients improved with conservative measures; however, surgical intervention was required in 13 patients.Conclusions: Although manual examination enhances endoscopic assessment in diagnosing rectocele and IRI, proctogram is still required for objective assessment. Management of OD remains mainly conservative, with surgical intervention required in some patients.

Novel bionics developments in gastroenterology: fecobionics assessment of lower GI tract function

Biomechatronics (bionics) is an applied science that is interdisciplinary between biology and engineering (mechanical, electrical and electronics engineering). Biomechatronics covers a wide area and is probably best known in development of prosthetic limbs, vision aids, robotics and neuroscience. Although the gastrointestinal tract is difficult to study, it is particularly suited for a bionics approach as demonstrated by recent developments. Ingestible capsules that travel the tract and record physiological variables have been used in the clinic. Other examples include sacral nerve stimulators that seek to restore normal anorectal function. Recently, we developed a simulated stool termed fecobionics. It has the shape of normal stool and records a variety of parameters including pressures, bending (anorectal angle) and shape changes during colonic transit and defecation, i.e. it integrates several current tests. Fecobionics has been used to study defecation patterns in large animals as well as in humans (normal subjects and patient groups including patients with symptoms of obstructed defecation and fecal incontinence). Recently, it was applied in a canine colon model where it revealed patterns consistent with shallow waves originating from slow waves generated by the interstitial cells of Cajal. Furthermore, novel analysis such as the rear-front pressure (preload–afterload) diagram and quantification of defecation indices have been developed that enable mechanistic insight. This paper reviews the fecobionics technology and outlines perspectives for future applications.

Abdominal pressure and pelvic organ prolapse: is there an association?

The primary aim of this study was to assess for an association between maximal intra-abdominal pressure reached on Valsalva (MAP) and pelvic organ prolapse (POP) on subjective, clinical and sonographic evaluation. Another objective was to test for association between MAP and body mass index (BMI). A retrospective cross-sectional study was carried out on 504 archived datasets of women seen for pelvic floor dysfunction symptoms between January 2017 to September 2019 at a tertiary urogynaecology clinic. Patients underwent a standardized interview including use of visual analogue scores (VAS) to evaluate bother of pelvic floor symptoms, examination using the International Continence Society Pelvic Organ Prolapse Quantification (ICS POP-Q), dual-channel filling and voiding cystometry, test for MAP as well as four-dimensional (4D) transperineal ultrasound. Analysis of ultrasound volumes for pelvic organ descent was performed blinded against all other data. There was a weak but significant association between MAP and sonographic rectal ampulla descent (p = 0.0275). There was also a significant association between MAP and bother of obstructed defecation symptoms (p = 0.0065). Symptomatic, clinical and sonographic POP in the anterior or the apical compartments was not significantly associated with MAP. On multivariate analysis, the association between MAP and rectal descent remained significant (p = 0.01). There was no significant association between BMI and MAP. This cross-sectional study showed an association between MAP and posterior compartment prolapse on imaging as well as between MAP and the bother score of obstructed defecation symptoms. There was no association between BMI and MAP.