Pelvic organ prolapse in defecatory disorders

ACG Clinical Guidelines: Management of Benign Anorectal Disorders

Benign anorectal disorders of structure and function are common in clinical practice. These guidelines summarize the preferred approach to the evaluation and management of defecation disorders, proctalgia syndromes, hemorrhoids, anal fissures, and fecal incontinence in adults and represent the official practice recommendations of the American College of Gastroenterology. The scientific evidence for these guidelines was assessed using the Grading of Recommendations Assessment, Development and Evaluation process. When the evidence was not appropriate for Grading of Recommendations Assessment, Development and Evaluation, we used expert consensus to develop key concept statements. These guidelines should be considered as preferred but are not the only approaches to these conditions.

A 10-year retrospective cohort study to assess objective and subjective outcomes of combined stapled transanal rectal resection and urogynecological surgery for pelvic floor dysfunction

PURPOSE

To assess the subjective and objective outcomes of combined stapled transanal rectal resection (STARR) and urogynecological surgery to treat pelvic organ prolapse, with a 10-year follow-up.

METHODS

This was a retrospective cohort study analyzing prospectively collected data from 53 consecutive patients who underwent combined stapled transanal rectal resection and urogynecological surgery, from 1 January 2005 to 31 December 2007 at a tertiary referral Pelvic Floor Unit of an Italian hospital.

RESULTS

Fifty-three patients with a median age of 60 years (interquartile range (IQR) 67-52t), underwent STARR and concomitant urogynecological surgery. No serious postoperative complications were recorded, and 37/53 women (70%) were evaluated at the 10-year follow-up visit. The cure rate was optimal in 34 women (64.1%). Regarding persistent and/or recurrent symptoms, five sexually-active patients (9%) reported dyspareunia only; obstructed defecation symptoms recurred in ten women (19%); urinary incontinence occurred in eight patients (15%); four patients (11%) reported persistent perineal pain; and two patients (5%) experienced both the urge to defecate and voiding dysfunction. At the 10-year follow-up, 14/27 patients (52%) stated that they would undergo the same operation again, if necessary. Furthermore, the survey found that patients would recommend the combined surgery.

CONCLUSION

The 10-year results of this study proved that combined rectal and urogynecological surgery is well tolerated, associated with low morbidity, and more effectively treats a distressing and debilitating condition vs separate surgeries for rectal and pelvic organ prolapse. We recommend complementing the relatively small scale of this study with randomized trials involving a sufficient number of patients, to provide more conclusive evidence on the cumulative long-term effects of combined surgery vs 2- or 3-stage surgery.

Mechanisms, Evaluation, and Management of Chronic Constipation

With a worldwide prevalence of 15%, chronic constipation is one of the most frequent gastrointestinal diagnoses made in ambulatory medicine clinics, and is a common source cause for referrals to gastroenterologists and colorectal surgeons in the United States. Symptoms vary among patients; straining, incomplete evacuation, and a sense of anorectal blockage are just as important as decreased stool frequency. Chronic constipation is either a primary disorder (such as normal transit, slow transit, or defecatory disorders) or a secondary one (due to medications or, in rare cases, anatomic alterations). Colonic sensorimotor disturbances and pelvic floor dysfunction (such as defecatory disorders) are the most widely recognized pathogenic mechanisms. Guided by efficacy and cost, management of constipation should begin with dietary fiber supplementation and stimulant and/or osmotic laxatives, as appropriate, followed, if necessary, by intestinal secretagogues and/or prokinetic agents. Peripherally acting μ-opiate antagonists are another option for opioid-induced constipation. Anorectal tests to evaluate for defecatory disorders should be performed in patients who do not respond to over-the-counter agents. Colonic transit, followed if necessary with assessment of colonic motility with manometry and/or a barostat, can identify colonic dysmotility. Defecatory disorders often respond to biofeedback therapy. For specific patients, slow-transit constipation may necessitate a colectomy. No studies have compared inexpensive laxatives with newer drugs with different mechanisms. We review the mechanisms, evaluation, and management of chronic constipation. We discuss the importance of meticulous analyses of patient history and physical examination, advantages and disadvantages of diagnostic testing, guidance for individualized treatment, and management of medically refractory patients.

The relationship of defecation symptoms and posterior vaginal wall prolapse in women undergoing pelvic organ prolapse surgery

BACKGROUND

Defecation symptoms are common among women with pelvic organ prolapse. However, the relationship between posterior vaginal wall prolapse and defecation symptoms remains debatable. Even though there is a plausible biomechanical rationale for posterior wall prolapse to cause obstructed defecation, previous studies have drawn contradictory conclusions regarding the association.

OBJECTIVE

We aimed to examine the association between posterior vaginal wall prolapse and defecation symptoms by assessing the following: (1) does prevalence of defecation symptoms increase along with posterior wall prolapse severity, (2) is postoperative symptom improvement greater in women who underwent posterior compartment procedures in comparison with those who did not, and (3) is symptom improvement related to the symptom's correlation with the degree of prolapse?

STUDY DESIGN

We used data from a nationwide longitudinal cohort study with 3515 women undergoing pelvic organ prolapse surgery. We measured the prevalence of 9 defecation symptoms at baseline and at 6 and 24 months after surgery using the short form of the Pelvic Floor Distress Inventory. Baseline degree of prolapse was categorized in stages as defined by the Pelvic Organ Prolapse Quantification System. The relationship between the degree of posterior wall prolapse and prevalence of bothersome defecation symptoms was studied with logistic regression and adjusted for patient characteristics and severity of anterior wall and apical prolapse. Generalized estimating equations were used to assess the longitudinal change in symptom prevalence in groups of participants with and without repair for posterior vaginal compartment. Correlations between symptom improvement and symptom dependency on the degree of prolapse was assessed by calculating Pearson's correlation coefficient.

RESULTS

The stage of posterior wall prolapse (stage 2 vs stage 0) correlated with splinting, straining, incomplete evacuation, fecal incontinence of liquid stool, pain during defecation, fecal urgency, and anorectal prolapse (adjusted odds ratios, 2.7, 2.1, 2.0, 1.5, 2.1, 1.4, and 2.2, respectively; P ≤ .007 for all). Flatal incontinence and fecal incontinence of solid stool were not associated with the severity of posterior vaginal wall prolapse. Obstructed defecation symptoms (splinting, straining, and incomplete evacuation) improved more in women undergoing posterior compartment surgery compared with women undergoing repair for other compartments. The greatest improvement at follow-up was observed for those symptoms that showed strongest association with the degree of prolapse at baseline.

CONCLUSION

Obstructed defecation symptoms are dependent on the posterior wall anatomy. Women presenting with posterior wall prolapse, and these symptoms can expect to improve after surgery. Other defecation symptoms also improve after pelvic organ prolapse surgery, but they are not as specific to posterior wall anatomy as obstructed defecation symptoms.

Clinical and physiological risk factors for fecal incontinence in chronically constipated women

BACKGROUND

Fecal incontinence (FI) and chronic constipation (CC) are disabling symptoms that cause a significant public health problem. The pathophysiology of combined constipation and FI is not fully understood. Our aim was to delineate the clinical, physiological and anatomical factors that may contribute to the association of FI and CC.

METHODS

A retrospective study was performed in a pelvic floor unit in a tertiary medical center. Consecutive female patients diagnosed with CC were included, and further divided into two groups according to the co-occurrence of FI. Demographic characteristics, anorectal physiology (obtained by manometry) and pelvic anatomical pathology (as assessed by dynamic pelvic ultrasound) were recorded and subsequently compared.

RESULTS

A total of 267 women were included in the study. Of those, 62 patients (23%) had an associated FI (CCFI). The CCFI group had higher body mass index (BMI) levels and a trend toward younger average age as compared to the group without FI (CCNFI). The number of vaginal and instrumental deliveries was similar in both groups. Anal resting and squeeze pressures were significantly lower in the CCFI group (64 ± 21 vs 48 ± 18, p = 0.004 and 141 ± 136.2 vs. 97.5 ± 38.6, p = 0.02, respectively). Rectal sensation abnormalities were common, but did not differ between both groups. Dyssynergic defecation and rectocele were more common in the CCNFI group (68% vs. 51%, p = 0.04 and 39% vs. 24%, p = 0/045, respectively.

CONCLUSIONS

Lower anal pressures and higher BMI were found among women with coexisting FI and CC. Pelvic floor anatomical and functional abnormalities are common in women diagnosed with CC and FI, but dyssynergia and diagnosis of significant rectocele, which cause obstructed defecation, were more common in the CCNFI group.

Patient-reported pelvic floor symptoms 5 years after hysterectomy with or without prolapse surgery

OBJECTIVE

The aim of this study was to evaluate the effect of hysterectomy with or without concomitant prolapse surgery on subject-reported pelvic floor disorders (PFD) with a 5-year follow-up.

STUDY DESIGN

This prospective longitudinal study was carried out in two Finnish central hospitals among 286 women who had undergone hysterectomy for benign reasons. The presence of urinary incontinence, urinary frequency, feeling of vaginal bulging, constipation and anal incontinence was evaluated at baseline, 1 and 5 years postoperatively. Analysis was performed on 256 (895%) patients who answered at least one of the follow-up questionnaires.

RESULTS

Hysterectomy with concomitant native tissue prolapse surgery significantly reduced urinary incontinence, urinary frequency, constipation and the feeling of vaginal bulging, and the results were maintained over the following five years. Plain hysterectomy reduced urinary frequency and the feeling of vaginal bulging but did not relieve urinary incontinence. Hysterectomy had no effect on anal incontinence. The total subsequent prolapse and/or incontinence operation rate was 2,7%, and was higher among patients who underwent hysterectomy for pelvic organ prolapse.

CONCLUSIONS

During a 5-years follow-up a hysterectomy alone or with native tissue prolapse surgery did not worsen pelvic floor disorders.

Anatomical description of the umbilical arteries and impact of their ligation on pelvic and perineal vascular supply after cystectomy in women

OBJECTIVE

In radical cystectomy, the surgeon generally ligates the umbilical artery at its origin. This artery may give rise to several arteries that supply the sexual organs. Our aim was to evaluate pelvic and perineal devascularisation in women after total cystectomy.

PATIENTS AND METHODS

We carried out a prospective anatomical and radiological study. We performed bilateral pelvic dissections of fresh adult female cadavers to identify the dividing branches of the umbilical artery. In parallel, we examined and compared the pre- and postoperative imaging investigations [magnetic resonance imaging (MRI) angiography] in patients undergoing cystectomy for benign disease to quantify the loss of pelvic vascularisation on the postoperative images by identifying the occluded arteries.

RESULTS

The anatomical study together with the radiological study visualised 35 umbilical arteries (n = 70) with their branching patterns and collateral arteries. The uterine artery originated from the umbilical artery in more than 75% of cases (n = 54) of the internal pudendal artery in 34% (n = 24) and the vaginal artery in 43% (n = 30). The postoperative MRI angiograms showed pelvic devascularisation in four patients. Devascularisation was dependent on the level of surgical ligation. In the four patients with loss of pelvic vascular supply, the umbilical artery had been ligated at its origin.

CONCLUSION

The umbilical artery gives rise to various branches that supply the pelvis and perineum. If the surgeon ligates the umbilical artery at its origin during total cystectomy, there is a significant risk of pelvic and perineal devascularisation.

Long-term outcomes and predictors of failure after surgery for stage IV apical pelvic organ prolapse

INTRODUCTION AND HYPOTHESIS

The aim of this study was to compare outcomes after uterosacral ligament suspension (USLS) or sacrocolpopexy for symptomatic stage IV apical pelvic organ prolapse (POP) and evaluate predictors of prolapse recurrence.

METHODS

The medical records of patients managed surgically for stage IV apical POP from January 2002 to June 2012 were reviewed. A follow-up survey was sent to these patients. The primary outcome, prolapse recurrence, was defined as recurrence of prolapse symptoms measured by validated questionnaire or surgical retreatment. Survival time free of prolapse recurrence was estimated using the Kaplan-Meier method, and Cox proportional hazards models evaluated factors for an association with recurrence.

RESULTS

Of 2633 women treated for POP, 399 (15.2%) had stage IV apical prolapse and were managed with either USLS (n = 355) or sacrocolpopexy (n = 44). Those managed with USLS were significantly older (p < 0.001) and less likely to have a prior hysterectomy (39.7 vs 86.4%; p < 0.001) or prior apical prolapse repair (8.2 38.6%; p < 0.001). Median follow-up was 4.3 years [interquartile range (IQR) 1.1-7.7]. Survival free of recurrence was similar between USLS and sacrocolpopexy (p = 0.43), with 5-year rates of 88.7 and 97.6%, respectively. Younger age [adjusted hazard ratio (aHR) 1.55, 95% confidence interval (CI) 1.12-2.13; p = 0.008] and prior hysterectomy (aHR 2.8, 95% CI 1.39-5.64; p = 0.004) were associated with the risk of prolapse recurrence, whereas type of surgery approached statistical significance (aHR 2.76, 95% CI 0.80-9.60; p = 0.11).

CONCLUSIONS

Younger age and history of prior hysterectomy were associated with an increased risk of recurrent prolapse symptoms. Notably, excellent survival free of prolapse recurrence were obtained with both surgical techniques.

Effects of Hysterectomy on Pelvic Floor Disorders: A Longitudinal Study

BACKGROUND

Hysterectomy might adversely affect pelvic floor functions and result in many different symptoms, such as urinary and anal incontinence, obstructed defecation, and constipation.

OBJECTIVE

The aim of this prospective study was to evaluate the influence of hysterectomy on pelvic floor disorders.

DESIGN

This was a prospective and longitudinal study.

SETTINGS

The study was conducted at the Ankara University Department of Surgery and the Dr Zekai Tahir Burak Women's Health Research and Education Hospital between September 2008 and March 2011.

PATIENTS

The study was performed on patients who underwent hysterectomy for benign pathologies.

MAIN OUTCOME MEASURES

A questionnaire about urinary incontinence (International Continence Society scoring), anal incontinence, constipation, and obstructed defecation (Rome criteria and constipation severity score), along with an extensive obstetric history, was administered preoperatively and postoperatively annually for 4 years.

RESULTS

Patients (N = 327) who had completed each of the 4 annual postoperative follow-ups were included in this study. Compared with the preoperative observations, the occurrence of each symptom was significantly increased at each of the follow-up years (p < 0.001). Over the 4 postoperative years, the frequencies for constipation (n = 245) were 7.8%, 8.2%, 8.6%, and 5.3%; those for obstructed defecation (n = 269) were 4.5%, 5.2%, 4.1%, and 3.0%; those for anal incontinence (n = 252) were 4.8%, 6.3%, 6.0%, and 5.2%, and those for urinary incontinence (n = 99) were 12.1%, 12.1%, 11.1%, and 13.1%. In addition, patients who had no preoperative symptom (n = 70) from any of the selected symptoms showed a postoperative occurrence of at least 1 of these symptoms of 15.8%, 14.3%, 11.4%, and 8.6% for the postoperative years 1, 2, 3, and 4.

LIMITATIONS

Although the study had several limitations, no comparison with a control population was the most important one.

CONCLUSIONS

Hysterectomy for benign gynecologic pathologies had a significant negative impact on pelvic floor functions in patients who had no previous symptoms.

High-resolution Anorectal Manometry for Identifying Defecatory Disorders and Rectal Structural Abnormalities in Women

BACKGROUND & AIMS

Contrary to conventional wisdom, the rectoanal gradient during evacuation is negative in many healthy people, undermining the utility of anorectal high-resolution manometry (HRM) for diagnosing defecatory disorders. We aimed to compare HRM and magnetic resonance imaging (MRI) for assessing rectal evacuation and structural abnormalities.

METHODS

We performed a retrospective analysis of 118 patients (all female; 51 with constipation, 48 with fecal incontinence, and 19 with rectal prolapse; age, 53 ± 1 years) assessed by HRM, the rectal balloon expulsion test (BET), and MRI at Mayo Clinic, Rochester, Minnesota, from February 2011 through March 2013. Thirty healthy asymptomatic women (age, 37 ± 2 years) served as controls. We used principal components analysis of HRM variables to identify rectoanal pressure patterns associated with rectal prolapse and phenotypes of patients with prolapse.

RESULTS

Compared with patients with normal findings from the rectal BET, patients with an abnormal BET had lower median rectal pressure (36 vs 22 mm Hg, P = .002), a more negative median rectoanal gradient (-6 vs -29 mm Hg, P = .006) during evacuation, and a lower proportion of evacuation on the basis of MRI analysis (median of 40% vs 80%, P < .0001). A score derived from rectal pressure and anorectal descent during evacuation and a patulous anal canal was associated (P = .005) with large rectoceles (3 cm or larger). A principal component (PC) logistic model discriminated between patients with and without prolapse with 96% accuracy. Among patients with prolapse, there were 2 phenotypes, which were characterized by high (PC1) or low (PC2) anal pressures at rest and squeeze along with higher rectal and anal pressures (PC1) or a higher rectoanal gradient during evacuation (PC2).

CONCLUSIONS

In a retrospective analysis of patients assessed by HRM, measurements of rectal evacuation by anorectal HRM, BET, and MRI were correlated. HRM alone and together with anorectal descent during evacuation may identify rectal prolapse and large rectoceles, respectively, and also identify unique phenotypes of rectal prolapse.

The incidence rate and characteristics of clinically diagnosed defecatory disorders in the community

BACKGROUND

Defecatory disorders (DD) are defined by clinical and objective features of impaired rectal evacuation. The epidemiology of DD in the population is unknown, partly because many constipated patients do not undergo anorectal tests. Our objectives were to estimate the incidence rate and clinical features of DD in the community.

METHODS

We reviewed the medical records of all patients older than 16 years in Olmsted County, MN, who had constipation and underwent anorectal manometry from 1999 through 2008. Criteria for diagnosing DD were constipation for 6 months or longer and one of the following: (i) abnormal rectal balloon expulsion test; (ii) reduced or increased perineal descent; or (iii) two or more abnormal features with defecography or surface electromyography.

KEY RESULTS

Of 11 112 constipated patients, 516 had undergone anorectal tests; 245 of these (209 women, 36 men) had a DD. The mean (±SD) age at diagnosis was 44 years (±18) among women and 49 years (±19) among men. The overall age- and sex-adjusted incidence rate per 100 000 person-years was 19.3 (95% CI: 16.8-21.8). The age-adjusted incidence per 100 000 person-years was greater (p < 0.0001) in women (31.8, 95% CI: 27.4-36.1) than in men (6.6, 95% CI: 4.4-8.9). Prior to the diagnosis of DD, nearly 30% of patients had irritable bowel syndrome (IBS), 48% had a psychiatric diagnosis, 18% had a history of abuse, and 21% reported urinary and/or fecal incontinence.

CONCLUSIONS & INFERENCES

Among constipated patients, DD are fourfold more common in women than men and often associated with IBS and psychiatric diagnoses.

Pregnancy and postpartum bowel changes: constipation and fecal incontinence

Pregnancy and the postpartum period are often associated with many gastrointestinal complaints, including nausea, vomiting, and heartburn; however, the most troublesome complaints in some women are defecatory disorders such as constipation and fecal incontinence, especially postpartum. These disorders are often multifactorial in etiology, and many studies have looked to see what risk factors lead to these complications. This review discusses the current knowledge of pelvic floor and anorectal physiology, especially during pregnancy, and reviews the current literature on causes and treatments of postpartum bowel symptoms of constipation and fecal incontinence.

Multidisciplinary team meetings in urogynaecology

INTRODUCTION AND HYPOTHESIS

The concept of multidisciplinary team (MDT) is well accepted in the current National Health Service (NHS) and is considered good practice for the management of chronic conditions. There has been a recent drive to have MDTs in managing women with incontinence and complex prolapse as a result of recommendations by National Institute for Health and Care Excellence (NICE) guidance, Medicines and Healthcare Products Regulatory Agency (MHRA) etc. Currently, there are no data on the outcome of case discussion at urogynaecology MDTs. The aim of this study was to review the clinical impact of discussion of a select group of cases at an urogynaecology MDT and review the clinical literature to justify the MDT approach.

METHODS

MDT proformas of cases discussed from October 2012 to December 2013 were reviewed. Outcomes of the MDT were compared with recommendations at the initial consultation. This included change in management plan, type of surgery and surgeon as well as time delay due to MDT discussion.

RESULTS

One hundred six proformas were available for analysis. Age range was 23-89 (58) years. Average time from clinic visit to MDT discussion was 8.32 + 5.9 days. The MDT recommended a change in management plan in 31 cases (29.3%), with 11 cases (10.4%) resulting in alternative surgery and 1 case (0.9%) with an alternative surgeon. In 18.5% of cases, MDT discussion formulated the initial management plan.

CONCLUSIONS

Case discussions at our MDT provide an effective clinical forum to formulate management plans for complex cases. The decision-making process is made robust, without significant impact on waiting time. Investment in setting up MDTs has financial implications but provides patient benefit.

Consensus statement AIGO/SICCR diagnosis and treatment of chronic constipation and obstructed defecation (part II: treatment)

The second part of the Consensus Statement of the Italian Association of Hospital Gastroenterologists and Italian Society of Colo-Rectal Surgery reports on the treatment of chronic constipation and obstructed defecation. There is no evidence that increasing fluid intake and physical activity can relieve the symptoms of chronic constipation. Patients with normal-transit constipation should increase their fibre intake through their diet or with commercial fibre. Osmotic laxatives may be effective in patients who do not respond to fibre supplements. Stimulant laxatives should be reserved for patients who do not respond to osmotic laxatives. Controlled trials have shown that serotoninergic enterokinetic agents, such as prucalopride, and prosecretory agents, such as lubiprostone, are effective in the treatment of patients with chronic constipation. Surgery is sometimes necessary. Total colectomy with ileorectostomy may be considered in patients with slow-transit constipation and inertia coli who are resistant to medical therapy and who do not have defecatory disorders, generalised motility disorders or psychological disorders. Randomised controlled trials have established the efficacy of rehabilitative treatment in dys-synergic defecation. Many surgical procedures may be used to treat obstructed defecation in patients with acquired anatomical defects, but none is considered to be the gold standard. Surgery should be reserved for selected patients with an impaired quality of life. Obstructed defecation is often associated with pelvic organ prolapse. Surgery with the placement of prostheses is replacing fascial surgery in the treatment of pelvic organ prolapse, but the efficacy and safety of such procedures have not yet been established.

Quality of Life Questionnaires for the Assessment of Pelvic Organ Prolapse: Use in Clinical Practice

Over the past decade, the use of quality of life (QOL) questionnaires in the evaluation of pelvic organ prolapse (POP) has become a standard part of most clinical studies. Investigators have attempted to correlate QOL scores with objective findings and treatment efficacy and as outcome measures in comparing different treatment modalities. Many of the QOL questionnaires are available in short forms, making them easier to adapt to clinical settings. This article includes an overview of several validated QOL questionnaires and their application in studies whose results provide useful guidelines for health care professionals who diagnose and manage women with POP.

Consensus statement AIGO/SICCR diagnosis and treatment of chronic constipation and obstructed defecation (Part II: Treatment)

The second part of the Consensus Statement of the Italian Association of Hospital Gastroenterologists and Italian Society of Colo-Rectal Surgery reports on the treatment of chronic constipation and obstructed defecation. There is no evidence that increasing fluid intake and physical activity can relieve the symptoms of chronic constipation. Patients with normal-transit constipation should increase their fibre intake through their diet or with commercial fibre. Osmotic laxatives may be effective in patients who do not respond to fibre supplements. Stimulant laxatives should be reserved for patients who do not respond to osmotic laxatives. Controlled trials have shown that serotoninergic enterokinetic agents, such as prucalopride, and prosecretory agents, such as lubiprostone, are effective in the treatment of patients with chronic constipation. Surgery is sometimes necessary. Total colectomy with ileorectostomy may be considered in patients with slow-transit constipation and inertia coli who are resistant to medical therapy and who do not have defecatory disorders, generalised motility disorders or psychological disorders. Randomised controlled trials have established the efficacy of rehabilitative treatment in dys-synergic defecation. Many surgical procedures may be used to treat obstructed defecation in patients with acquired anatomical defects, but none is considered to be the gold standard. Surgery should be reserved for selected patients with an impaired quality of life. Obstructed defecation is often associated with pelvic organ prolapse. Surgery with the placement of prostheses is replacing fascial surgery in the treatment of pelvic organ prolapse, but the efficacy and safety of such procedures have not yet been established.

Consensus statement AIGO/SICCR diagnosis and treatment of chronic constipation and obstructed defecation (part II: treatment)

The second part of the Consensus Statement of the Italian Association of Hospital Gastroenterologists and Italian Society of Colo-Rectal Surgery reports on the treatment of chronic constipation and obstructed defecation. There is no evidence that increasing fluid intake and physical activity can relieve the symptoms of chronic constipation. Patients with normal-transit constipation should increase their fibre intake through their diet or with commercial fibre. Osmotic laxatives may be effective in patients who do not respond to fibre supplements. Stimulant laxatives should be reserved for patients who do not respond to osmotic laxatives. Controlled trials have shown that serotoninergic enterokinetic agents, such as prucalopride, and prosecretory agents, such as lubiprostone, are effective in the treatment of patients with chronic constipation. Surgery is sometimes necessary. Total colectomy with ileorectostomy may be considered in patients with slow-transit constipation and inertia coli who are resistant to medical therapy and who do not have defecatory disorders, generalised motility disorders or psychological disorders. Randomised controlled trials have established the efficacy of rehabilitative treatment in dys-synergic defecation. Many surgical procedures may be used to treat obstructed defecation in patients with acquired anatomical defects, but none is considered to be the gold standard. Surgery should be reserved for selected patients with an impaired quality of life. Obstructed defecation is often associated with pelvic organ prolapse. Surgery with the placement of prostheses is replacing fascial surgery in the treatment of pelvic organ prolapse, but the efficacy and safety of such procedures have not yet been established.

Effects of vaginal hysterectomy on anorectal sensorimotor functions--a prospective study

BACKGROUND

While bowel and bladder dysfunction are recognized consequences of a radical hysterectomy, the effects of a simple hysterectomy on anorectal sensorimotor functions, particularly rectal sensation, vary among studies and the effects on rectal compliance remain unknown. Our aims were to prospectively evaluate anorectal sensorimotor functions before and after a hysterectomy.

METHODS

Anal pressures, rectal compliance, capacity, sensation, and bowel symptoms were assessed before, at 2 months, and at 1 year after a simple vaginal hysterectomy for benign indications in 19 patients. Rectal staircase (0-44 mmHg, 4-mmHg steps), ramp (0-200 mL at 50, 200 and 600 mL min(-1)) and phasic distentions (8, 16, and 24 mmHg above operating pressure) were performed.

KEY RESULTS

Anal resting (63 ± 4 before, 56 ± 4 mmHg after) and squeeze pressures (124 ± 12 before, 124 ± 12 mmHg after), rectal compliance and capacity (285 ± 12 before, 290 ± 11 mL 1 year after), and perception of phasic distentions were not different before vs after a hysterectomy. Sensory thresholds for first sensation and the desire to defecate were also not different, but pressure and volume thresholds for urgency were somewhat greater (Hazard ratio = 0.7, 95% CI [0.5, 1.0]) 1 year after (vs before) a hysterectomy. Rectal pressures were higher (P < 0.0001) during fast compared with slow ramp distention; this rate effect was greater at 1 year after a hysterectomy, particularly at 100 mL (P = 0.04).

CONCLUSIONS & INFERENCES

A simple vaginal hysterectomy has relatively modest effects (i.e., somewhat reduced rectal urgency and increased stiffness during rapid distention) on rectal sensorimotor functions.

Female pelvic floor dysfunction--an imaging perspective

Female pelvic floor dysfunction encompasses a range of morbidities, including urinary incontinence, female pelvic organ prolapse, anal incontinence and obstructed defecation. Patients often present with symptoms covered by several specialties including gastroenterology, colorectal surgery, urology and gynecology. Imaging can therefore bring clinicians from multiple specialties together by revealing that we frequently deal with different aspects of one underlying problem or pathophysiological process. This article provides an interdisciplinary imaging perspective on the pelvic floor. Modern pelvic floor imaging comprises defecation proctography, translabial and endorectal ultrasound, and static and dynamic MRI. This Perspectives focuses on the potential use of translabial ultrasound, including 3D and 4D applications, for diagnosis of pelvic floor disorders. Over the next decade, pelvic floor imaging will most likely be integrated into mainstream diagnostics in obstetrics and gynecology and colorectal surgery. Using imaging to facilitate communication between different specialties has the potential to greatly improve the multidisciplinary management of complex pelvic floor disorders.

Contribution of primary pelvic organ prolapse to micturition and defecation symptoms

Objective. To investigate the contribution of Pelvic Organ Prolapse (POP) to micturition and defecation symptoms. Method. Cross-sectional study including 64 women presenting with POP symptoms and 50 controls without POP complaints. Subjects were evaluated using POP-Quantification system, Urinary Distress Inventory, and Defecation Distress Inventory. The MOS SF-36 health survey and the Center for Epidemiological Studies Depression scale were used to measure self-perceived health status and depressive symptoms, respectively. Results. POP in terms of POP-Q had a moderate impact on the symptom observing vaginal protrusion (explained variance 0.31). It contributed modestly to obstructive voiding and overactive bladder symptoms (explained variance 0.09, resp., 0.14) but not to urinary incontinence. Constipation was more likely explained by clinical depression than by pelvic floor defects (explained variance 0.13, resp., 0.05). Conclusion. Stage of POP and specific prolapse symptoms are associated but such a strong association does not exist between POP and micturition or defecation symptoms.

Postoperative pain after haemorrhoidectomy: role of impaired evacuation

AIM

We hypothesized that obstructive defaecation is associated with more postoperative pain after haemorrhoidectomy.

METHOD

Fifty patients with grade IV haemorrhoids were included in a prospective study. Impaired evacuation was defined as the inability to evacuate a rectal balloon. Perianal sensitivity was evaluated by means of an algometer, and anxiety and depression were assessed by the hospital anxiety and depression (HAD) scale. Over the first 10 days after a Milligan-Morgan haemorrhoidectomy, the following parameters were measured on daily questionnaires: pain (associated with and unrelated to defaecation by means of visual analogue scales), number of bowel movements, faecal consistency and analgesic requirement on demand (tramadol 50 mg p.o., number of doses). Results are expressed as median and interquartile range or mean ± SE.

RESULTS

Patients with impaired evacuation (14 women, eight men; age range 28-61 years) experienced more postoperative pain than patients with nonimpaired evacuation (eight women, 20 men; age range 24-70 years): 3.2 (2.1) vs 2.1 (1.8) defaecatory pain, respectively (P = 0.045), and 2.4 (2.3) vs 1.7 (2.3) nondefecatory pain, respectively (P = 0.048). There was no difference between the groups regarding stool consistency, number of bowel movements [12.5 (7.3) vs 15.5 (7.2), respectively; NS] and analgesic requirement [1.0 (6.1) vs 1.0 (5.2) extra doses on demand, respectively; NS] during the 10 postoperative days. No differences related to age, sex, HAD scores or perianal sensitivity were found.

CONCLUSION

Impaired anal evacuation is predictive of postoperative pain after haemorrhoidectomy.

Clinical significance of obstructive defecatory symptoms in women with pelvic organ prolapse

OBJECTIVE

To determine whether the presence of obstructive defecatory symptoms is associated with the site and severity of pelvic organ prolapse.

METHODS

A cross-sectional study was performed of women with pelvic organ prolapse of grade 2 or greater who had completed a validated questionnaire that surveyed pelvic floor symptoms. Associations between patient characteristics, site and severity of prolapse, and obstructive bowel symptoms were investigated.

RESULTS

Among 260 women with pelvic organ prolapse, women with posterior vaginal wall prolapse were more likely to report obstructive symptoms, such as incomplete emptying (41% vs 21%, P=0.003), straining at defecation (39% vs 19%, P=0.002), and splinting with defecation (36% vs 14%, P<0.001) compared with women without posterior vaginal wall prolapse. There was no significant association between any bowel symptom and increasing severity of prolapse.

CONCLUSIONS

Obstructive bowel symptoms are significantly associated with the presence of posterior vaginal wall prolapse, but not with the severity of prolapse.

Levator defects affect perineal position independently of prolapse status

OBJECTIVE

The purpose of this study was to determine the effect of levator defects on perineal position and movement irrespective of prolapse status.

STUDY DESIGN

Forty women from an ongoing study were divided into 2 groups of 20 women with and without severe levator defects. Prolapse status was matched between groups, with 50% of the women having stage III or greater anterior wall prolapse. Perineal structure locations were measured against standard axes on magnetic resonance scans at rest, maximum contraction (Kegel), and maximum Valsalva maneuver. Differences in location were calculated and compared.

RESULTS

In women with levator defects, independently of prolapse status: (1) At rest, the perineal body was 1.3 cm, and the anal sphincter was 1.0 cm more caudal (P ≤ .01); at maximum contraction, the perineal body and the anal sphincter were both 1.2 cm more caudal (P ≤ .01); with maximum Valsalva maneuver, the perineal body was 1.3 cm more caudal, and the anal sphincter was 1.2 cm more caudal (P ≤ .01). (2) At rest, the levator hiatus was 0.8 cm larger, and the urogenital hiatus was 1.0 cm larger (P ≤ .01). (3) At rest, the bladder was 0.07 cm more posterior (P ≤ .02); with maximum contraction, it was 1.9 cm lower (P ≤ .02). (4) With maximum Valsalva maneuver, the bladder was 1.5 cm lower and displaced further caudally (P ≤ .03).

CONCLUSION

When we controlled for prolapse, the women with levator defects had a more caudal location of their perineal structures and larger hiatuses at rest, maximum contraction, and maximum Valsalva maneuver.

Dysfunctional urinary voiding in women with functional defecatory disorders

BACKGROUND

While pelvic floor dysfunction may manifest with bladder or bowel symptoms, the relationship between functional defecatory disorders and dysfunctional voiding is unclear. Our hypothesis was that patients with defecatory disorders have generalized pelvic floor dysfunction, manifesting as dysfunctional urinary voiding.

METHODS

Voiding was assessed by a symptom questionnaire, a voiding diary, uroflowmetry, and by measuring the postvoid residual urine volume in this case-control study of 28 patients with a functional defecatory disorder (36 ± 2 years, mean ± SEM) and 30 healthy women (36 ± 2 years).

KEY RESULTS

 Women with a defecatory disorder frequently reported urinary symptoms: urgency (61%), frequency (36%), straining to begin (21%), or finish (50%) voiding, and the sense of incomplete emptying (54%). Fluid intake and output, the minimum voided volume, and the shortest duration between voids measured by voiding diaries were higher (P < 0.05) in patients than in controls. Uroflowmetry revealed abnormalities in seven controls and 22 patients. The risk of abnormal voiding by uroflowmetry was higher in patients (OR 8.0; 95% CI, 2.3-26.9) than in controls. Patients took longer than controls (P < 0.01) to attain the maximum urinary flow rate (12 ± 2 VS 4 ± 0 s) and to empty the bladder (29 ± 4 VS 20 ± 2 s), but the maximum urinary flow rate and postvoid residual volumes were not significantly different.

CONCLUSIONS & INFERENCES

Symptoms of dysfunctional voiding and uroflowmetric abnormalities occurred more frequently, suggesting of disordered urination, in women with a defecatory disorder than in healthy controls.

The use of abdominal massage to treat chronic constipation

Constipation is a disorder of gastrointestinal motility characterized by difficult or decreased bowel movements, and is a common condition in Western countries. Laxatives are the most common strategy for managing constipation. However, long-term use of some laxatives may be associated with harmful side-effects including increased constipation and fecal impaction. Abdominal massage, once an accepted method of treating constipation, is no longer standard of care, but may be a desirable therapy for this condition because it is inexpensive, non-invasive, free of harmful side-effects, and can be performed by patients themselves. However, until recently, evidence for its effectiveness was not strong enough to make a recommendation for its use in constipated patients. In 1999, Ernst reviewed all available controlled clinical trials, and found that there was no sound evidence for the effectiveness of abdominal massage in the treatment of chronic constipation. This article reviews scientific evidence from 1999 to the present, regarding abdominal massage as an intervention for chronic constipation. Since that time, studies have demonstrated that abdominal massage can stimulate peristalsis, decrease colonic transit time, increase the frequency of bowel movements in constipated patients, and decrease the feelings of discomfort and pain that accompany it. There is also good evidence that massage can stimulate peristalsis in patients with post-surgical ileus. Individual case reports show that massage has been effective for patients with constipation due to a variety of diagnosed physiologic abnormalities, as well as in patients with long-term functional constipation.

Relationships between pelvic floor symptoms and function in irritable bowel syndrome

BACKGROUND

Pelvic floor dyssynergia (PFD) within irritable bowel syndrome (IBS) is often overlooked and the relationship between symptoms and physiology is relatively unexplored. Our aims were to determine relationships between clinical features and anorectal function in non-diarrhea predominant IBS (non-D IBS) patients and whether certain clinical or physiological features predict PFD in IBS.

METHODS

Two groups of patients were evaluated. Group I: 32 female non-D IBS patients with >or=2 symptoms suggesting PFD underwent comprehensive symptom and anorectal function assessment. Group II: 32 female non-D IBS patients recruited from the community underwent symptom assessment.

KEY RESULTS

Prevalence of PFD symptoms was similar in both groups. In group I patients, increased frequency of digitation was associated with a longer balloon expulsion time (P = 0.03). Higher scores for anal pain were associated with both a low resting anal pressure (P = 0.04) and a shorter duration of maximum squeeze (P = 0.03). Reduced perineal descent was associated with anxiety (P = 0.03) and depression (P = 0.01). A shorter duration of maximum squeeze was associated with higher parity (P = 0.02) and previous hysterectomy (P = 0.047). Duration of PFD symptoms was higher (P = 0.02) and maximum tolerated volume was lower (P = 0.05) in 22 patients with a physiological diagnosis of PFD compared to 10 without PFD. No symptoms independently predicted a physiological diagnosis of PFD.

CONCLUSIONS & INFERENCES

Important relationships between certain PFD symptoms and disordered anorectal physiology have been demonstrated in these non-D IBS patients. However, symptoms alone could not predict PFD, and certain clinical features should therefore highlight the need for comprehensive anorectal function tests.

Constipation: a potential cause of pelvic floor damage?

BACKGROUND

Pelvic floor damage is a major clinical problem usually attributed to obstetric injury. We speculated that constipation may also be an aetiological and preventable factor resulting from repeated stress on the perineum over many years, and this study aimed to test this hypothesis.

METHODS

A total of 600 women attending a gynaecological clinic were assessed using a structured questionnaire gathering data on pelvic floor damage, constipation and obstetric trauma. Complete data were available on 596 subjects.

KEY RESULTS

The prevalence of pelvic floor damage was 10% (61/596). In this group, constipation was identified in 31% (19/61) of women and obstetric trauma in 31% (19/61). In the group without pelvic floor damage, constipation was present in 16% (86/535) and obstetric trauma in 16% (83/535). In univariate analysis, pelvic floor damage was associated with age (OR: 1.05; 95% CI: 1.03-1.08; P < 0.0001), constipation (OR: 2.36; 95% CI: 1.31-4.26; P < 0.0001) and obstetric trauma (OR: 2.46; 95% CI: 1.37-4.45; P < 0.0028). In multivariate analysis, the OR for age was 1.05 (95% CI: 1.03-1.08; P < 0.0001), for constipation 2.35 (95% CI: 1.27-4.34; P < 0.0001) and for obstetric trauma 1.37 (95% CI: 0.72-2.62; P = 0.3398).

CONCLUSIONS & INFERENCES

Constipation appears to be as important as obstetric trauma in the development of pelvic floor damage. Thus, a more proactive approach to recognizing and treating constipation might significantly reduce the prevalence of this distressing problem.

Posterior perineal support as treatment for anal fissures--preliminary results with a new toilet seat device

BACKGROUND

Anal fissures can cause morbidity in an otherwise healthy young patient. The process of evacuation results in stretching and descent of the anoderm and perineum especially posteriorly. Posterior perineal support may provide counter pressure at the posterior aspect of the pelvic floor, balancing the pressure exerted by the faeces on the anal wall, thus improving evacuation and reducing the trauma associated with it, and reducing symptoms of anal fissures. Symptoms of constipation may also be reduced secondarily. We report the preliminary results with a novel, simple and noninvasive method of treatment provided by a toilet seat device.

METHODS

A prospective study was performed in 32 patients. The study was designed mainly to investigate the patients' subjective perceptions of their symptoms related to anal fissures and constipation. Questionnaires were provided to patients before, during and after treatment.

RESULTS

The study revealed statistically significant improvement in pain, bleeding, symptoms of constipation and abdominal discomfort after 3 months usage of the device. The odds of patients perceiving an improvement in symptoms were also significantly increased after 3 months of treatment compared to 2 weeks of treatment.

CONCLUSION

This preliminary study revealed that a posterior perineal support device can bring about significant improvement in the symptoms of patients with anal fissures. There may also be secondary benefits of a reduction in the symptoms of constipation. Although not conclusive, these results should serve as a springboard for further research into this area.

Effect of surgically induced weight loss on pelvic floor disorders in morbidly obese women

OBJECTIVE

To evaluate the effect of surgically induced weight loss on pelvic floor disorders (PFD) in morbidly obese women.

SUMMARY BACKGROUND DATA

Although bariatric surgery may lead to the improvement of some obesity-related comorbidities, the resolution of global PFD has not been well described.

METHODS

Women with a body mass index (BMI) of 35 kg/m(2) or more who were considering bariatric surgery were asked to complete 2 validated condition-specific questionnaires assessing the distress/quality of life impact of PFD, total and by domain (pelvic organ prolapse, colorectal-anal, and urogenital). Women who achieved a > or =50% excess body weight loss after surgery were asked to complete the same questionnaires for comparison.

RESULTS

Of the 178 women who underwent surgery, 46 completed the postoperative questionnaires. Mean age of this group was 45 years (range, 20-67), and mean preoperative BMI was 45 kg/m(2) (range, 35-75). The prevalence of PFD symptoms improved from 87% before surgery to 65% after surgery (P = 0.02, 95% CI: 0.05%-53%). There was a significant reduction in total mean distress scores after surgery (P = 0.015, 95% CI: 3.3-32.9), which was attributed mainly to the significant decrease in urinary symptoms (P = 0.0002, 95% CI: 8.2-22.7). Reductions in the scores were noted for the other PFD domains as well. Quality of life total scores improved (P = 0.002, 95% CI: 4.8-27.1), as did scores in the urinary domain (P = 0.0005, 95% CI: 3.8-13.5) and the pelvic organ prolapse domain (P = 0.015, 95% CI: 0.6-9.5). Age, parity, history of complicated delivery, percent excess body weight loss, BMI, type of weight loss procedure and presence of diabetes mellitus and hypertension had no predictive value for postoperative outcomes.

CONCLUSION

Surgically induced weight loss has a beneficial effect on symptoms of PFD in morbidly obese women.

Obstructive defecation in middle-aged women

Obstructive defecation, a significant contributor to constipation, is frequently reported in middle-aged women, yet few population-based studies have established prevalence in this group. We analyzed data from the Reproductive Risks for Incontinence Study at Kaiser, a population-based cohort of racially diverse women, 40-69 years old, to describe the prevalence of obstructive defecation and identify associated risk factors. The Reproductive Risks for Incontinence Study at Kaiser is a randomly selected cohort of 2,109 women in the Kaiser Medical System. Obstructive defecation, determined by self-report, was defined as difficulty in passing stool, hard stool, straining for more than 15 min, or incomplete evacuation, occurring at least weekly. Age, race, income, education, drinking, health status, parity, pelvic organ prolapse, urinary incontinence, number of medications, hysterectomy, surgery for pelvic organ prolapse, colectomy, irritable bowel syndrome, and body mass index were assessed for both their univariate and multivariate association with obstructive defecation. Multivariate logistic regression was used to determine the independent association between associated factors and the primary outcome of obstructive defecation. Obstructive defecation that occurred at least weekly was reported by 12.3% of women. Significant independent risk factors included irritable bowel syndrome [odds ratio 1.78, (95% confidence interval 1.21-2.60)], vaginal or laparoscopic hysterectomy [2.01 (1.15-3.54)], unemployment [2.33 (1.39-3.92)], using three or more medications [1.81 (1.36-2.42)], symptomatic pelvic organ prolapse [2.34 (1.47-3.71)], urinary incontinence surgery [2.52 (1.29-4.90)], and other pelvic surgery [1.35 (1.03-1.78)]. We concluded that obstructive defecation is common in middle-aged women, especially those with a history of treatment for pelvic floor conditions. Women who had undergone laparoscopic/vaginal hysterectomies or surgery for pelvic organ prolapse or urinary incontinence had a nearly two times greater risk of weekly obstructive defecation. Demographic factors, with the exception of employment status, were not significant, indicating that obstructive defecation, although widespread, does not affect any particular group of women.

Sacrocolpopexy without concomitant posterior repair improves posterior compartment defects

The aim of this study is to determine posterior compartment topography 1-year after sacrocolpopexy (SC). Women who had SC without concomitant anterior or posterior repairs for symptomatic pelvic organ prolapse (POP) were included. Vaginal topography was assessed at baseline and 1-year postoperatively using POP quantification (POPQ). At baseline, 24% had stage IV POP, 68% stage III, and 8% stage II. One year after surgery, 75% had stage 0/I POP, 24% stage II, and 1% stage III. 112 (75%) were objectively cured (stage 0 or I POP). Anterior compartment was the most common site of POP persistence or recurrence (Ba ≥ stage II in 23 women) followed by posterior compartment (Bp ≥ stage II in 12 women) and apex (C ≥ stage II in 2 women). In 1-year follow-up, SC without concomitant posterior repair restores posterior vaginal topography in the majority of women with undergoing SC.

Fecal incontinence among morbid obese women seeking for weight loss surgery: an underappreciated association with adverse impact on quality of life

PURPOSE

Morbid obesity is associated with urinary incontinence (UI). The study purpose was to determine the prevalence of fecal incontinence (FI), its associated risk factors, and its impact on quality of life (QOL) in morbidly obese women.

MATERIALS AND METHODS

A questionnaire-based study on morbidly obese women [body mass index (BMI)>or=35 m/kg2], attending a bariatric surgery seminar, was conducted. Data included demographics, past medical, surgical and obstetric history, and obesity-related co-morbidities. Patients who reported of FI, completed the Cleveland Clinic Foundation Fecal Incontinence scale (CCF-FI) and the Fecal Incontinence Quality of Life scale (FIQL).

RESULTS

Participants included 256 women [median age 45 years (19-70)] and mean BMI of 49.3+/-9.4 m/kg2. FI was reported in 63%. History of obstetric injury (OR: 2.4, 95% CI: 1.33-4.3; p<0.001) and UI (OR: 1.2, 95% CI: 1.1-1.4; p<0.001) were significantly associated with FI. There was no association with age, BMI, parity, and presence of diabetes or hypertension. Median CCF-FI score was 7 (1-20); 34.5% scored>or=10. Incontinence for gas was the most frequent type (87%) of FI, followed by incontinence for liquids (80%), which also had the highest impact on QOL (p<0.01). Mean FIQL scores were >3 for all four domains studied. CCF-FI scores were significantly correlated with FIQL scores in all domains (p=0.02).

COMMENT

The prevalence of FI among morbidly obese women may be much higher than the rates reported in the general population. FI has adverse effects on QOL. Its correlation with UI suggests that morbid obesity may pose a risk of global pelvic floor dysfunction.

Morbid obesity adversely impacts pelvic floor function in females seeking attention for weight loss surgery

PURPOSE

This study was designed to determine the impact of excess body mass on the prevalence of pelvic floor disorders in morbidly obese females.

METHODS

A total of 358 morbidly obese females (body mass index (BMI) >or= 35 kg/m(2)) completed two validated, condition-specific, quality of life questionnaires of pelvic floor dysfunction, which assessed stress/impact in three main domains of pelvic floor disorders: pelvic organ prolapse, colorectal-anal, and urogenital incontinence. Prevalence and severity scores in the study population were compared with data from 37 age-matched nonobese controls (BMI <or= 35 kg/m(2)).

RESULTS

Mean age was 43 +/- 11 years vs. 42 +/- 12 years, and mean BMI was 50 +/- 10 kg/m(2) vs. 26 +/- 4 kg/m(2) (p = 0.02) in the study and control groups, respectively. Parity and past obstetric history were similar between the groups. Pelvic floor disorders were prevalent in 91 percent of the morbidly obese females compared with 22 percent in the control group (p < 0.001). Scores were statistically significantly higher in the study group for all studied stress/impact domains (p < 0.001 and p = 0.001, respectively). Further stratifications in the study group revealed a significant impact on pelvic floor disorders with increased age (p < 0.003 and p < 0.009 for stress/impact mean scores, respectively) and the presence of other comorbidities (p< 0.008, p < 0.03 for stress/impact prevalence, respectively). Additional increases in BMI > 35 kg/m(2) did not show increased adverse impacts on pelvic floor disorders symptoms.

CONCLUSION

More than 90 percent of morbidly obese females experience some degree of pelvic floor disorders, and 50 percent of these females report that symptoms adversely impact quality of life. In morbidly obese females, obesity is as important as obstetric history in predicting pelvic floor dysfunction.

Abnormal spinal curvature as a risk factor for pelvic organ prolapse

To determine the relationship between pelvic organ prolapse and spinal curvature changes, a cross-sectional study was done in Gynecologic and Obstetrics educational hospitals and clinics in North West of Iran. One hundred patients were classified as cases based on the presence of abnormality at the spinal curvature and 100 patients classified as controls with no abnormality. The POP-Q (pelvic organ prolapse quantitation) staging system was used for assessment of prolapse stage and a flexi-curve malleable rod for measurement of thoracic and lumbar length and width, respectively. Main outcome was the stage of prolapses. The stage of prolapse was higher in cases compared to controls. There was a significant statistical difference between prolapse stage in two groups (p-value = 0.035). Among cases, grade II prolapse was the most prevalent abnormally (56%) and the grade III, I and IV were observed in 32, 5 and 7%, respectively. These observations underline the importance of taking into account the abnormal changes in spine curvature of patients when investigating risk factors for development of pelvic organs prolapse.

Enterocele repair by abdominal obliteration of the pelvic inlet: long-term outcome on obstructed defaecation and symptoms of pelvic discomfort

OBJECTIVE

Enterocele is defined as a herniation of the peritoneal sac between the vagina and the rectum. This may contain either sigmoid colon or small bowel. It has been reported that enterocele is associated with obstructed defaecation and symptoms of pelvic discomfort. The aim of the present study was to evaluate the long-term effect of enterocele repair.

METHOD

In the time period between 1994 and 2003, 54 women (median age 54 years; range: 31-80) with a symptomatic enterocele underwent obliteration of the pelvic inlet with a U-shaped Mersilene mesh. All patients underwent evacuation proctography (EP), which was repeated 6 months after the repair. In addition, they were contacted over the telephone to assess the long-term effect of enterocele repair. Forty-nine patients were willing to answer questions over the telephone. Five patients were lost to follow-up (response rate: 91%).

RESULTS

Six months after the procedure, EP revealed a recurrent or persistent enterocele in five (9%) patients, which was symptomatic in two, both of whom underwent a second repair. Among the 49 patients without an enterocele after 6 months, 10 (23%) women encountered recurrent symptoms of pelvic discomfort at a median follow-up of 85 months (range: 3-137). Despite adequate correction of the enterocele, obstructed defaecation persisted in 21 (75%) patients of 28, who presented with this problem before the procedure. De novo dyspareunia occurred in 5% of the women after the procedure.

CONCLUSION

Obliteration of the pelvic inlet with a U-shaped Mersilene mesh provides an effective tool for anatomical correction of enteroceles. However, in the long term one of four patients encounters recurrent symptoms of pelvic discomfort. It seems unlikely that enterocele contributes to obstructed defaecation, as evacuation difficulties persist in around three quarters of the patients.

Impact of pregnancy and parturition on the anal sphincters and pelvic floor

Incontinence and defecatory difficulties are commonly reported among women and are often ascribed to traumas sustained during childbirth. Specifically, injuries to the anal sphincters (tears) and conformational changes in the various structures that comprise the pelvic floor (prolapse and perineal descent) have been considered as important contributors to the development of anal incontinence, or difficult defaecation (straining, incomplete evacuation), in later life. An understanding of both the effects of pregnancy and parturition on these structures and the natural history of any traumas sustained are, therefore, of key importance. Unfortunately, the literature on these issues, though vast, is far from complete. While it is evident that pregnancy, per se, imposes changes, primarily through hormonal influences, on colonic, ano-rectal and pelvic floor physiology, the long-term impact of such effects is far from clear. Risk factors for the occurrence of significant, though often occult, anal sphincter injuries during birth have been identified and the role of these tears in the etiology of post-partum incontinence has been well delineated. In contrast, the contribution of such intra-partum events to the later onset of incontinence is far from clear and may well have been over-estimated.

Ultrasonographic patterns in patients with obstructed defaecation

BACKGROUND

Anal ultrasound is helpful in assessing organic anorectal lesions, but its role in functional disease is still questionable. The purpose of the present study is to assess anal-vaginal-dynamic perineal ultrasonographic findings in patients with obstructed defecation (OD) and healthy controls.

MATERIALS AND METHODS

Ninety-two consecutive patients (77 women; mean age 51 years; range 21-71) with symptoms of OD were retrospectively evaluated. All patients underwent digital exploration, endoanal and endovaginal ultrasound (US) with rotating probe. Forty-one patients underwent dynamic perineal US with linear probe. Anal manometry and defaecography were performed in 73 and 43 patients, respectively. Ultrasonographic findings of 92 patients with symptoms of OD were compared to 22 healthy controls. Anismus was defined on US when the difference in millimetres between the distance of the inner edge of the puborectalis muscle posteriorly and the probe at rest and on straining was less then 5 mm. Sensitivity and specificity were calculated by assuming defaecography as the gold standard for intussusception and rectocele and proctoscopy for rectal internal mucosal prolapse. Since no gold standard for the diagnosis of anismus was available in the literature, the agreement between anal US and all other diagnostic procedures was evaluated.

RESULTS

The incidence of anismus resulted significantly higher (P < 0.05) in OD patients than healthy controls on anal (48 vs 22%), vaginal (44 vs 21%), and dynamic perineal US (53 vs 22%). A significantly higher incidence of rectal internal mucosal prolapse was observed in OD patients when compared to healthy controls on both anal (61.9 vs 13.6%, P < 0.0001) and dynamic perineal US (51.2 vs.9% P = 0.001). For the diagnosis of rectal internal mucosal prolapse, anal US had a 100% sensitivity and specificity. For diagnosis of rectal intussusception, anal US had an 83.3% sensitivity and 100% specificity and perineal US had a 66.6% sensitivity and 100% specificity. In the diagnosis of anismus, anal ultrasonography resulted in agreement with perineal and vaginal US, manometry, defaecography, and digital exam (P < 0.05). Other lesions detected by US in patients with OD include solitary rectal ulcer, rectocele and enterocele. Damage of internal and/or external sphincter was diagnosed at anal US in 19/92 (20%) patients, all continent and with normal manometric values.

CONCLUSION

Anal, vaginal and dynamic perineal ultrasonography can diagnose or confirm many of the abnormalities seen in patients with OD. The value of the information obtained by this non-invasive test and its role in the diagnostic algorithm of OD is yet to be defined.

Pelvic floor: anatomy and function

The pelvic floor is a dome-shaped striated muscular sheet that encloses the bladder, uterus, and rectum, and, together with the anal sphincters, has an important role in regulating storage and evacuation of urine and stool. This article reviews the anatomy, nerve supply, pharmacology, and functions of the anal sphincters and the pelvic floor. The internal and external anal sphincters are primarily responsible for maintaining faecal continence at rest and when continence is threatened, respectively. Defecation is a somato-visceral reflex regulated by dual nerve supply (i.e. somatic and autonomic) to the anorectum. The net effects of sympathetic and cholinergic stimulation are to increase and reduce anal resting pressure, respectively. Faecal incontinence and functional defecatory disorders may result from structural changes and/or functional disturbances in the mechanisms of faecal continence and defecation.