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Wai Sze Tong,1,* Agatha WT Yuen,1,* Christine YY Wai,2 Nicki YH Leung,2 Ka Hou Chu,1 Patrick SC Leung3 1School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China; 2Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China; 3Division of Rheumatology, Allergy and Clinical Immunology, School of Medicine, University of California Davis, Davis, CA, USA *These authors contributed equally to this work Abstract: Seafood allergy is a hypersensitive disorder with increasing prevalence worldwide. Effective and accurate diagnostic workup for seafood allergy is essential for clinicians and patients. Parvalbumin and tropomyosin are the most common fish and shellfish allergens, respectively. The diagnosis of seafood allergies is complicated by cross-reactivity among fish allergens and between shellfish allergens and other arthropods. Current clinical diagnosis of seafood allergy is a complex algorithm that includes clinical assessment, skin prick test, specific IgE measurement, and oral food challenges. Emerging diagnostic strategies, such as component-resolved diagnosis (CRD), which uses single allergenic components for assessment of epitope specific IgE, can provide critical information in predicting individualized sensitization patterns and risk of severe allergic reactions. Further understanding of the molecular identities and characteristics of seafood allergens can advance the development of CRD and lead to more precise diagnosis and improved clinical management of seafood allergies. Keywords: skin prick test, DBPCFC, component-resolved diagnosis, immunoCAP, ISAC

Importance: To evaluate and consider how prescribing practices have changed in relation to high-risk overactive bladder (OAB) medications., Objective: The objective of this study was to evaluate trends in the prevalence of OAB and pharmacologic treatment over time in the United States., Study Design: Data from the National Health and Nutrition Examination Survey (NHANES, 2001-2018, n = 30,478) and the National Ambulatory Medical Care Survey (NAMCS, 2003-2019, n = 251,330) were used to identify women with symptomatic incontinence and overactive bladder (OAB) (NHANES) as well as determine the frequency of prescription use for OAB medications (NHANES and NAMCS) using sampling-based weights. Joinpoint regression was used to determine adjusted annual percent change (APC, adjusting for race, age, body mass index, and insurance status). Trends were assessed overall and by race, age, body mass index, and insurance status., Results: The prevalence of OAB was 31.2% in the final survey year of NHANES (2017-2018). Women aged >65 years had the highest prevalence of OAB at 54% compared with other age groups. There was an overall increase in OAB (APC 1.24 [0.64, 1.84], P = 0.002) over time. Overall, only 3.5% of patients with symptoms of OAB reported pharmacologic treatment in NHANES. The NAMCS demonstrated a significant decrease in anticholinergic prescriptions from 2003 until 2019 (APC -6.44 [-9.77, -2.98], P = 0.001). However, in NHANES, there was no significant change in anticholinergic use (APC 0.62 [-20.2, 26.8], P = 0.944). There was a stable prevalence of β3-adrenergic agonist prescriptions since they were introduced to market (APC 0.65 [-2.24, 3.62], P = 0.616)., Conclusion: This study demonstrates an increasing prevalence of OAB and highlights the likely undertreatment of symptomatic patients. The high and increasing prevalence coupled with the relative undertreatment of OAB underscores the importance of screening for this condition., Competing Interests: M.E.F.-R. is a consultant for Boston Scientific. The other authors have declared they have no conflicts of interest., (Copyright © 2024 American Urogynecologic Society. All rights reserved.)

Objectives: Prolapse procedures with uterine preservation offer an alternative to colpopexy with hysterectomy. Few studies have examined the differences in anatomic or subjective outcomes following sacral hysteropexy versus sacral colpopexy with hysterectomy. This study sought to compare the ability of sacral hysteropexy and sacral colpopexy with hysterectomy to resist downward traction as an estimate of apical support in human cadavers., Methods: Sacral hysteropexy was performed on unembalmed female cadavers. A metal bolt/washer was threaded through the uterine fundus, down the cervical canal. and out the vagina and fastened to a waxed surgical filament, which ran over a fixed pulley at the table's end. Successive weights were added to provide increasing loads on the uterine fundus, and the distances traversed by the fundus were recorded. The same process was repeated after completion of a total hysterectomy (with vaginal cuff closure) and subsequent sacral colpopexy in the same specimen. Data were analyzed using paired-sample t test and repeated-measures analysis of variance (Sigma Plot version 13.0), with P ≤ 0.05 considered statistically significant., Results: Eight female cadavers were utilized. With the addition of each weight, the average distance traversed by the uterine fundus or vaginal cuff gradually increased. There were no statistical differences in the distances moved by the apex between sacral hysteropexy and total hysterectomy/sacral colpopexy., Conclusions: These results suggest that functional support provided by sacral hysteropexy and sacral colpopexy with hysterectomy may be similar. Further studies are needed to correlate these findings with patient satisfaction, which may vary despite similar anatomic results.

Introduction and Hypothesis: Limited data exist comparing different surgical approaches in women with advanced vaginal prolapse. This study compared 2-year surgical outcomes of uterosacral ligament suspension (ULS) and sacrospinous ligament fixation (SSLF) in women with advanced prolapse (stage III-IV) and stress urinary incontinence., Methods: This was a secondary analysis of a multicenter 2 × 2 factorial randomized trial comparing (1) ULS versus SSLF and (2) behavioral therapy with pelvic floor muscle training versus usual care. Of 374 subjects, 117/188 (62.7%) in the ULS and 113/186 (60.7%) in the SSLF group had advanced prolapse. Two-year surgical success was defined by the absence of (1) apical descent > 1/3 into the vaginal canal, (2) anterior/posterior wall descent beyond the hymen, (3) bothersome bulge symptoms, and (4) retreatment for prolapse. Secondary outcomes included individual success outcome components, symptom severity measured by the Pelvic Organ Prolapse Distress Inventory, and adverse events. Outcomes were also compared in women with advanced prolapse versus stage II prolapse., Results: Success did not differ between groups (ULS: 58.2% [57/117] versus SSLF: 58.5% [55/113], aOR 1.0 [0.5-1.8]). No differences were detected in individual success components (p > 0.05 for all components). Prolapse symptom severity scores improved in both interventions with no intergroup differences (p = 0.82). Serious adverse events did not differ (ULS: 19.7% versus SSLF: 16.8%, aOR 1.2 [0.6-2.4]). Success was lower in women with advanced prolapse compared with stage II (58.3% versus 73.2%, aOR 0.5 [0.3-0.9]), with no retreatment in stage II., Conclusions: Surgical success, symptom severity, and overall serious adverse events did not differ between ULS and SSLF in women with advanced prolapse. ClinicalTrials.gov Identifier: NCT01166373.

Background: Little is known about short- and long-term pain and functional activity after surgery for pelvic organ prolapse., Objective: The objectives of the study were to describe postoperative pain and functional activity after transvaginal native tissue reconstructive surgery with apical suspension and retropubic synthetic midurethral sling and to compare these outcomes between patients receiving 2 common transvaginal prolapse repairs, uterosacral ligament, and sacrospinous ligament vaginal vault suspension., Study Design: This planned secondary analysis of a 2 × 2 factorial randomized trial included 374 women randomized to receive uterosacral (n = 188) or sacrospinous (n = 186) vaginal vault suspension to treat both stages 2-4 apical vaginal prolapse and stress urinary incontinence between 2008 and 2013 at 9 medical centers. Participants were also randomized to receive perioperative pelvic muscle therapy or usual care. All patients received transvaginal native tissue repairs and a midurethral sling. Participants completed the Surgical Pain Scales (0-10 numeric rating scales; higher scores = greater pain) and Activity Assessment Scale (0-100; higher score = higher activity) prior to surgery and at 2 weeks, 4-6 weeks, and 3 months postoperatively. The MOS 36-item Short-Form Health Survey was completed at baseline and 6, 12, and 24 months after surgery; the bodily pain, physical functioning, and role-physical subscales were used for this analysis (higher scores = less disability). Self-reported pain medication use was also collected., Results: Before surgery, average pain at rest and during normal activity were (adjusted mean ± SE) 2.24 ± 0.23 and 2.76 ± 0.25; both increased slightly from baseline at 2 weeks (+0.65, P = .004, and +0.74, P = .007, respectively) and then decreased below baseline at 3 months (-0.87 and -1.14, respectively, P < .001), with no differences between surgical groups. Pain during exercise/strenuous activity and worst pain decreased below baseline levels at 4-6 weeks (-1.26, P = .014, and -0.95, P = .002) and 3 months (-1.97 and -1.50, P < .001) without differences between surgical groups. Functional activity as measured by the Activity Assessment Scale improved from baseline at 4-6 weeks (+9.24, P < .001) and 3 months (+13.79, P < .001). The MOS 36-item Short-Form Health Survey Bodily Pain, Physical Functioning, and Role-Physical Scales demonstrated significant improvements from baseline at 6, 12, and 24 months (24 months: +5.62, +5.79, and +4.72, respectively, P < .001 for each) with no differences between groups. Use of narcotic pain medications was reported by 14.3% of participants prior to surgery and 53.7% at 2 and 26.1% at 4-6 weeks postoperatively; thereafter use was similar to baseline rates until 24 months when it decreased to 6.8%. Use of nonnarcotic pain medication was reported by 48.1% of participants prior to surgery, 68.7% at 2 weeks, and similar to baseline at 3 months; thereafter use dropped steadily to 26.6% at 2 years. Uterosacral ligament suspension resulted in less new or worsening buttock pain than sacrospinous suspension at 4-6 weeks postoperatively (4.6% vs 10.5%, P = .043) but no difference in groin or thigh pain., Conclusion: Pain and functional activity improve for up to 2 years after native tissue reconstructive surgery with uterosacral or sacrospinous vaginal vault suspension and midurethral sling for stages 2-4 pelvic organ prolapse. On average, immediate postoperative pain is low and improves to below baseline levels by 4-6 weeks., (Copyright © 2019 Elsevier Inc. All rights reserved.)

Background: Declining vaginal hysterectomy numbers in obstetrics and gynecology training programs highlights the need for innovative methods to teach vaginal surgical skills. We describe our experience with a vaginal hysterectomy skills simulation curriculum., Instrument: A low-fidelity bench model was constructed to simulate four vaginal hysterectomy suturing tasks. A polyvinyl chloride downspout adapter and low-cost materials simulate the Heaney pedicle stitch, simple pedicle stitch, double ligature, and continuous running stitch., Experience: Faculty expert vaginal surgeons established proficiency levels for each task. Resident (N=30) pass rates for tasks 1, 2, and 3 were 1 of 30 (3.3%), 7 of 30 (23.3%), and 4 of 30 (13.3%), respectively, for the left side, and 3 of 30 (10%), 9 of 30 (30%), and 10 of 30 (33.3%), respectively, for the right side. For task 4, the pass rate was 14 of 30 (46.7%). The majority of residents felt that the model simulates the technical skills required for vaginal hysterectomy and agreed that vaginal skills laboratory training would improve their ability to perform procedures in the operating room. Ninety-two percent of residents felt that a vaginal surgery skills curriculum would be a useful addition to their simulation education., Conclusion: A proficiency-based vaginal hysterectomy skills simulation curriculum using a low-fidelity model may be an important training and evaluation tool for vaginal surgical skills training.

Objective: This study aimed to compare the ability of abdominal sacrocolpopexy (ASC) with concomitant total vs supracervical hysterectomy to resist downward traction as a measure of functional anatomic support in human cadavers., Methods: Supracervical hysterectomy was performed on unembalmed cadaver specimens, followed by ASC attaching polypropylene mesh to the posterior cervix/vagina only and then the anterior and posterior cervix/vagina. Using a metal bolt placed through the cervix tied to a filament passing through a fixed pulley system, successive weights of 0.5 to 3.0 kg were added to provide increasing loads on the apex (cervix), and the distances traversed by the apex were recorded. The same process was then repeated in each specimen after removal of the cervix (with vaginal cuff closure). One-way and repeated-measures analysis of measure was used for between-group and within-group comparisons, respectively, with P ≤ 0.05 considered statistically significant., Results: Eight cadavers were examined. At lower weight loads, pulling distances in the 4 groups examined were similar and were not significantly different with the presence or absence of the cervix. At weight loads of 2.5 kg or greater, we noted a trend of increased pulling distances when posterior mesh only was used vs when anterior/posterior mesh was placed, although this difference was not significant. Interestingly, there was tearing of the vaginal wall or partial separation of mesh/sutures attachments to the vagina noted in 3 specimens., Conclusions: This study showed no differences in the ability of the cervix (after supracervical hysterectomy) compared with the vaginal cuff (after total hysterectomy) to resist downward traction of successive weights after ASC. Clinical trials are necessary to correlate these findings with prolapse recurrence rates and patient satisfaction following these procedures.

Objective: The aim of the study was to compare anterior and overall prolapse prevalence at 1 year in surgical participants with or without concomitant anterior repair (AR) at the time of sacrospinous ligament fixation (SSLF) or uterosacral ligament suspension (ULS)., Methods: This is a secondary analysis of two surgical trials; concomitant AR was performed at surgeon's discretion. Anterior anatomic success was defined as pelvic organ prolapse quantification of prolapse point Ba ≤0 and overall success was defined as pelvic organ prolapse quantification points Ba, Bp, and C ≤0 at 12 months., Results: Sixty-three percent (441/701) of the participants underwent concomitant AR and were older, more often postmenopausal, had previous hysterectomy, and had higher-stage anterior, but not apical prolapse. Anterior anatomic success was marginally but statistically better in the combined group (SSLF and ULS) with concomitant AR (82% vs 80%, P = 0.03). In subanalyses, the improvement in anatomic support with AR was observed only in the SSLF subgroup (81% vs 73%, P = 0.02) and mostly in the SSLF subgroup with higher preoperative stage (74% vs 57%, P = 0.02). Anterior repair did not improve success rates in participants with lower-stage prolapse or undergoing ULS. Overall success rates were similar to anterior anatomic success rates. Participants with higher-stage preoperative anterior prolapse had significantly lower success rates., Conclusions: In the absence of clinical trial data, this analysis suggests an AR should be considered for women with higher-stage prolapse undergoing an SSLF. Preoperative prolapse severity is a strong predictor of poor anatomic outcomes with native tissue vaginal apical surgeries.

Introduction and Hypothesis: We evaluated the effect of polypropylene mesh width on vaginal apical support, mesh elongation, and mesh tensile strength for abdominal sacrocolpopexy., Methods: Abdominal sacrocolpopexy was performed on ten cadavers using pieces of polypropylene mesh of width 1, 2, and 3 cm. Weights of 1, 2, 3, and 4 kg were sequentially applied to the vagina. The total distance moved by the vaginal apex, and the amount of stretch of the intervening mesh segment between the sacrum and the vagina were recorded for each width. The failure strengths of additional single and double layer sets of each width were also tested using a tensiometer. Data were analyzed with analysis of variance using a random effects model., Results: The mean (standard error of the mean) maximum distance moved by the vaginal apex was 4.63 cm (0.37 cm) for the 1 cm mesh compared to 3.67 cm (0.26 cm) and 2.73 cm (0.14 cm) for the 2 and 3 cm meshes, respectively (P < 0.0001). The 1 cm width ruptured during testing in four of the ten cadavers. The results were similar for mesh elongation, with the 1 cm mesh stretching the most and the 3 cm mesh stretching the least. Mesh failure loads for double-layer mesh were 52.9 N (2.5 N), 124.4 N (2.7 N), and 201.2 N (4.5 N) for the 1, 2, and 3 cm meshes, respectively, and were higher than the failure loads for single mesh (P < 0.001)., Conclusions: In a cadaver model, increasing mesh width is associated with better vaginal apical support, less mesh elongation, and higher failure loads. Mesh widths of 2-3 cm provide sufficient repair strength for sacrocolpopexy.

The one-bead-one-compound (OBOC) combinatorial peptide library is a powerful tool to identify ligand and receptor interactions. Here, we applied the OBOC library technology to identify mimotopes specific to the immunoglobulin E (IgE) epitopes of the major shellfish allergen tropomyosin. OBOC peptide libraries with 8-12 amino acid residues were screened with serum samples from patients with shellfish allergy for IgE mimotopes of tropomyosin. Twenty-five mimotopes were identified from the screening and their binding reactivity to tropomyosin-specific IgE was confirmed by peptide ELISA. These mimotopes could be divided into seven clusters based on sequence homology, and epitope mapping by EpiSearch of the clustered mimotopes was performed to characterize and confirm the validity of mimotopes. Five out of six of the predicted epitopes were found to overlap with previously identified epitopes of tropomyosin. To further confirm the mimicry potential of mimotopes, BALB/c mice were immunized with mimotopes conjugated to keyhole limpet hemocyanin and assayed for their capacity to induce tropomyosin-specific antibodies. BALB/c mice that received mimotope immunization were found to have an elevated level of tropomyosin-specific immunoglobulin G, but not mice that received an irrelevant mimotope. This study pioneers the successful application of the OBOC libraries using whole sera to screen and identify multiple shrimp allergen mimotopes and validates their mimicry potential using in vitro, in vivo, and in silico methods.Cellular & Molecular Immunology advance online publication, 14 september 2015; doi:10.1038/cmi.2015.83.

Introduction and Hypothesis: To describe the relationships between pelvic bony landmarks to points along the third sacral nerve and to uterosacral ligament suspension sutures., Methods: Three transvaginal uterosacral ligament suspension sutures were placed bilaterally in unembalmed female human cadavers. The third sacral nerve was marked at the foramen (S3a) and at two additional points at 1-cm intervals along its course caudally (S3b, S3c). Three bony pelvic landmarks were identified and marked, including the ischial spine, pubic symphysis, and coccyx. Distances from each landmark to each suture and nerve point were measured. The distance from each landmark to each S3 nerve point was extended radially, encompassing an arbitrary zone in which sutures may be placed and thus where nerve injury may occur. Zones of potential nerve injury included: zone A (closest to the sacral nerve root), zone B, and zone C (closest to the landmark). Descriptive statistics were used and comparisons were made using Student's t test and ANOVA., Results: Ten cadaver specimens were dissected. For the ischial spine, the distances to points S3a, S3b, and S3c were 6.3, 5.4, and 4.6 cm respectively. Approximately two thirds of the sutures were noted beyond zone C, indicating a potentially increased risk of nerve injury with suture placement in zones farthest from the ischial spine given their proximity to the sacral nerve., Conclusions: Using the ischial spine as a landmark, increased sacral nerve injury could result from suture placement beyond the mean distance of 4.6 cm from the ischial spine. The use of bony landmarks in avoiding sacral nerve injury may be as important as suture depth and angle of suture placement.

As the field of reconstructive pelvic surgery continues to evolve, with descriptions of new procedures to repair pelvic organ prolapse, it remains imperative to maintain a functional understanding of pelvic floor anatomy and support. The goal of this review was to provide a focused, conceptual approach to differentiating anatomic defects contributing to prolapse in the various compartments of the vagina. Rather than provide exhaustive descriptions of pelvic floor anatomy, basic pelvic floor anatomy is reviewed, new and historical concepts of pelvic floor support are discussed, and relevance to the surgical management of specific anatomic defects is addressed., (Copyright © 2016 Elsevier Inc. All rights reserved.)

Background: Shellfish allergy is one of the most common food hypersensitivities worldwide but allergen-specific immunotherapy for shellfish allergy is not yet available. We believe that T cell peptide-based immunotherapy holds the potential for modulating allergic responses without IgE cross-linking., Objective: We sought to identify the immunodominant T cell epitopes of tropomyosin, the major shrimp allergen of Metapenaeus ensis (Met e 1), and to evaluate their therapeutic effects in a Balb/c mouse model of Met e 1 hypersensitivity., Methods: T cell epitopes of Met e 1 were first identified based on the proliferation and cytokine responses of splenocytes isolated from Met e 1-sensitized Balb/c mice upon stimulation by 18 synthetic peptides that span the full-length Met e 1. The immunodominant T cell peptides identified were then fed orally to Met e 1-sensitized Balb/c mice twice a week for four weeks. Allergic responses, serological antibody levels, intestinal histology and systemic and local cytokine profiles were compared between the treated and the untreated groups., Results: Six major Met e 1 T cell epitopes were identified. Mice treated with the T cell epitope peptide mixture demonstrated an amelioration of systemic allergic symptoms and a significant reduction in Th2-associated antibody and cytokine responses. These benefits were accompanied by a shift to a balanced Th1/Th2 response, induction of IgG2a antibodies possessing in vitro and in vivo blocking activities and the induction of regulatory T cell responses., Conclusions and Clinical Relevance: T cell epitope-based oral immunotherapy is effective in reducing allergic responses towards shrimp tropomyosin. This is a novel strategy for clinical management of shellfish allergy and is a model for mechanistic studies of oral immunotherapy., (© 2015 John Wiley & Sons Ltd.)

Ovarian ectopic pregnancies are rare, with the majority diagnosed in the first trimester and often treated due to symptoms related to ovarian rupture. We report our experience with the diagnosis, management, and histologic evaluation of an unruptured second-trimester ovarian ectopic pregnancy. A 37-year-old woman presented with vague abdominal discomfort and irregular menses. Ultrasound detected a 16-week 4-day gestation with cardiac motion in the right adnexa and no evidence of an intrauterine pregnancy. Laparotomy with right salpingo-oophorectomy was performed, with removal of an unruptured pregnancy from the ovary. Although intraoperative examination and postoperative histopathologic evaluation demonstrated the classic Speigelberg criteria, it did not assist in the preoperative diagnosis, nor impact the treatment of the ovarian ectopic pregnancy in this case., (© 2015 Japan Society of Obstetrics and Gynecology.)

Objective: To assess change in overactive bladder (OAB) symptoms up to 5 years after surgery and to identify associated predictors of change from baseline., Methods: This is a secondary analysis of data from three multicenter urinary incontinence (UI) surgical trials of women with stress-predominant mixed UI assigned to Burch colposuspension, autologous fascial sling, or retropubic or transobturator midurethral slings. The primary outcome was improvement of 70% or greater from baseline in symptoms measured by the Urinary Distress Inventory-Irritative subscale. Surgical groups were compared within respective trials. Generalized linear models were fit using 1-year and up to 5-year data., Results: Significant improvements in Urinary Distress Inventory-Irritative scores were reported by each surgical group 1 year after surgery (P<.001). Most women (50-71%) reported improvement in OAB symptoms. Improvements were similar between midurethral sling groups at 1 year (65.5% compared with 70.7%, P=.32; odds ratio [OR] 0.83, 95% confidence interval [CI] 0.57-1.20 for retropubic compared with transobturator sling) and throughout the 5-year follow-up period. More women reported OAB symptom improvement after Burch compared with pubovaginal sling (67.9% compared with 56.6%, P=.01; OR 1.59, 95% CI 1.10-2.31 for Burch compared with sling); this group difference at 1 year persisted throughout the 5-year follow-up. At 1-year, 50.0-64.3% of patients reported 70% greater improvement in UI. This proportion declined to 36.5-54.1% at 5 years (P<.001). Preoperative use of anticholinergics and urodynamic parameters was not predictive of OAB symptom change after surgery., Conclusion: Most women with stress-predominant mixed UI experienced significant improvement in OAB symptoms after incontinence surgery although this initial improvement diminished over time. Obesity blunted symptom improvement., Level of Evidence: II.

Objective: To evaluate the effect of myogenic stem cell-laden hydrogel scaffold on contractile function and histomorphology of the external anal sphincter (EAS) after transection without repair., Methods: Eighty female rats underwent anal sphincter transection without repair. After 2 weeks, animals were injected at the transection site with: nothing (non-repaired control, NRC group); a polyethylene glycol-based hydrogel matrix scaffold combined with phosphate-buffered saline (PBS/hydrogel group); a hydrogel matrix scaffold combined with myogenic stem cells (stem cell/hydrogel group): or type I collagen (collagen) group. 4 (n = 40) or 12 (n = 40) weeks later, the anal sphincter complexes were dissected out and analyzed for contractile function, disruption, and striated muscle volume. Time-matched unoperated controls (UOC) were utilized for each of the two time points (n = 20)., Results: After 4 weeks, maximal electrical field-stimulated (EFS) contractions were significantly decreased in all four non-repaired treatment groups compared with UOC. However, EFS-stimulated contractions, tetanic force generation, and twitch tension were improved in non-repaired EAS injected with stem cell/hydrogel group relative to the NRC, PBS/hydrogel, or collagen groups. NRC and sphincters injected with PBS/hydrogel deteriorated further by 12 weeks, while those receiving stem cell/hydrogel maintained improved contractile function at varying frequencies and voltages. Striated muscle volume increased from 4 to 12 weeks for PBS/hydrogel and stem cell/hydrogel animals. At 12 weeks, stem cell/hydrogel animals had greater sphincter striated muscle volumes compared with all other treatment groups., Conclusion: In this animal model, sustained improvement of contractile responses in non-repaired EAS treated with biogel scaffold and myogenic stem cells suggests that a biologically compatible matrix may facilitate stem cell survival, differentiation, or function leading to recovery of contractile function even after persistent disruption.

Introduction and Hypothesis: The objective was to evaluate the effect of myogenic stem cells on histological properties and the volume of striated muscle of the external anal sphincter after transection and repair., Methods: Histological analysis was performed on the external anal sphincters of 40 young female rats euthanized at 7 or 90 days after transection and repair and randomization to injection of either phosphate buffered solution (PBS) or myogenic stem cells (SC) at the transection site. Sphincter complexes, previously evaluated for neurophysiological function, were processed for histology and analyzed for possible disruption, amount of inflammation, and volume of striated muscle. The relationship between the muscular disruption and contractile force of sphincters was evaluated., Results: Disruption was seen in 100 % of sphincters 7 days after repair for both SC and control animals. Eighty-nine percent of controls and 78% of SC-administered animals had intact sphincters at 90 days. Significant inflammatory infiltrate was seen in repaired anal sphincters for both the PBS and the SC groups at 7 days, and persisted at 90 days, with no difference between treatment groups. Striated muscle volume increased from 7 to 90 days for both control and SC-administered animals. Although there was no difference in volume between treatments, there was substantial temporal improvement in contractile force generation of the sphincters receiving SC compared with those receiving PBS., Conclusion: In this animal model, administration of myogenic stem cells to transected/repaired anal sphincters did not alter the amount of inflammation nor the volume of striated muscle, suggesting that stem cells might improve contractile function through other cellular processes.

Background: We report a case of obturator neuropathy associated with retropubic midurethral sling., Case: After retropubic tension-free vaginal tape (TVT) placement, a 36-year-old woman reported right inguinal region and thigh pain, both exacerbated with internal rotation and adduction. Neurologic examination was remarkable for two-fifths strength with right thigh adduction and an involuntary lateral drift of her right thigh with straight leg raise. Radiologic evaluation was unrevealing. With persistence of motor symptoms and pain, partial sling removal on the right was performed. Symptoms subsided postoperatively, and the patient ultimately recovered with no residual neurologic sequelae., Conclusion: Recognition of an atypical complication, obturator neuropathy, of retropubic TVT placement with prompt partial right sling removal on postoperative day 2 resulted in complete recovery of neurologic sequelae.

Designer proteins deprived of its IgE-binding reactivity are being sought as a regimen for allergen-specific immunotherapy. Although shrimp tropomyosin (Met e 1) has long been identified as the major shellfish allergen, no immunotherapy is currently available. In this study, we aim at identifying the Met e 1 IgE epitopes for construction of hypoallergens and to determine the IgE inhibitory capacity of the hypoallergens. IgE-binding epitopes were defined by three online computational models, ELISA and dot-blot using sera from shrimp allergy patients. Based on the epitope data, two hypoallergenic derivatives were constructed by site-directed mutagenesis (MEM49) and epitope deletion (MED171). Nine regions on Met e 1 were defined as the major IgE-binding epitopes. Both hypoallergens MEM49 and MED171 showed marked reduction in their in vitro reactivity towards IgE from shrimp allergy patients and Met e 1-sensitized mice, as well as considerable decrease in induction of mast cell degranulation as demonstrated in passive cutaneous anaphylaxis assay. Both hypoallergens were able to induce Met e 1-recognizing IgG antibodies in mice, specifically IgG2a antibodies, that strongly inhibited IgE from shrimp allergy subjects and Met e 1-sensitized mice from binding to Met e 1. These results indicate that the two designer hypoallergenic molecules MEM49 and MED171 exhibit desirable preclinical characteristics, including marked reduction in IgE reactivity and allergenicity, as well as ability to induce blocking IgG antibodies. This approach therefore offers promises for development of immunotherapeutic regimen for shrimp tropomyosin allergy.

Aims: This study examined the association between the need for a repeat voiding trial after midurethral sling (MUS) surgery and 1-year success rates., Methods: We conducted this secondary analysis of the participants in the Urinary Incontinence Treatment Network trial of midurethral sling (TOMUS) study which compared retropubic versus transobturator MUS. A standard voiding trial was attempted on all subjects. The "repeat voiding trial" group included subjects discharged with catheterization. All others were considered "self voiding." Success rates between the groups at 1-year were compared, followed by multivariate analyses controlling for previously reported clinical predictors of success., Results: Most women (76%) were self-voiding, while 24% required a repeat voiding trial. The objective success rate at 1-year was 85.8% in the repeat voiding trial group and 75.3% in the self-voiding group (P = 0.01). Subjective success rate at 1-year was 61.0% in the repeat voiding trial group and 55.1% in the self-voiding group (P = 0.23). Women in the repeat voiding trial group continued to demonstrate greater objective success than the self-voiding group in multivariate analysis that controlled for previous incontinence surgery, pad weight, urethral mobility, urge score, and type of MUS (P = 0.04, OR 1.82, 95% CI 1.03-3.22)., Conclusions: Women who require a repeat voiding trial following MUS surgery have greater objective success at 1-year postoperatively when compared to those who are self-voiding at the time of discharge. These results may help reassure women who require catheterization after MUS surgery that their outcome is not compromised by this immediate transient post-operative result., (© 2013 Wiley Periodicals, Inc.)

Objective: This planned secondary analysis of the Outcomes Following Vaginal Prolapse Repairs and Midurethral Sling trial assessed whether treatment knowledge differed between randomized groups at 12 months and whether treatment success was affected by treatment perception., Study Design: Sham suprapubic tension-free vaginal tape (TVT) incisions were made in the Outcomes Following Vaginal Prolapse Repairs and Midurethral Sling trial participants randomized to no-TVT. Primary surgical outcomes and maintenance of blinding was assessed at 12 months. Knowledge of treatment assignment was compared between groups, and the relationship with treatment success rates was assessed., Results: Prior to the 12 month postoperative visit, only 4% of treated participants (13 of 336) formally reported unmasking. At 12 months, 94% of the randomized participants (315 of 336) provided treatment knowledge data. Sixteen TVT participants (10%) reported treatment knowledge; most (n = 15, 94%) were correct; 17 of the sham participants (11%) reported treatment knowledge; half (n = 8, 47%) were correct. Similar proportions of unmasked participants who reported no treatment knowledge correctly guessed/perceived treatment assignment (sham, 46 [33%] vs TVT, 44 [33%]). We did not detect significant differences in treatment success rates based on perception within and across received treatment groups (perceived sham vs TVT overall [P = .76]). Of those receiving TVT, more participants perceiving TVT had treatment success compared with those who perceived sham (84% vs 74%; P = .29). Among sham participants, more participants perceiving sham had success compared with those who perceived receiving TVT (65% vs 56%; P = .42)., Conclusion: Sham surgical incisions effectively mask TVT randomization. These findings may help to inform future surgical trial designs., (Copyright © 2014 Elsevier Inc. All rights reserved.)

Purpose of Review: Patient-reported outcomes and satisfaction are recognized as being equally important as traditional objective measures of success following midurethral sling (MUS) procedures. The objective of this article is to review the success after MUSs in the context of patient satisfaction., Recent Findings: Patient satisfaction for both transobturator and retropubic MUSs at 2 years is high with rates up to 88%. Factors that positively influence satisfaction include improvement in quality of life and reduction in severity of symptoms. Satisfaction has been found to be negatively impacted by persistent stress incontinence, preoperative urinary urgency, mixed urinary incontinence, detrusor overactivity, and selected comorbidities such as diabetes. Factors, such as postoperative incomplete bladder emptying, irritative voiding, and complications after MUS surgery, can also influence satisfaction adversely., Summary: Combining patient-reported outcome measures with customary objective measures offer a more comprehensive assessment of success. Even though the data are limited, the short-term and intermediate-term rates of satisfaction are promising for both transobturator and retropubic MUSs. Future studies should focus on further elucidating long-term predictors of satisfaction after MUS placement.

Seafood is an important component in human diet and nutrition worldwide. However, seafood also constitutes one of the most important groups of foods in the induction of immediate (type I) food hypersensitivity, which significantly impacts the quality of life and healthcare cost. Extensive efforts within the past two decades have revealed the molecular identities and immunological properties of the major fish and shellfish allergens. The major allergen involved in allergy and cross-reactivity among different fish species was identified as parvalbumin while that responsible for shellfish (crustaceans and mollusks) allergy was identified as tropomyosin. The cloning and expression of the recombinant forms of these seafood allergens facilitate the investigation on the detailed mechanisms leading to seafood allergies, mapping of IgE-binding epitopes, and assessment of their allergenicity and stability. Future research focusing on the immunological cross-reactivity and discovery of novel allergens will greatly facilitate the management of seafood allergies and the design of effective and life-long allergen-specific immunotherapies.

Single-incision slings are the newest midurethral slings developed for the surgical treatment of stress urinary incontinence. We report the case of a patient who underwent single-incision sling placement who presented with recurrent stress incontinence 3 years after the procedure. She was found to have a 1.7-cm bladder stone that formed around the single-incision sling polypropylene barb.

Loss of pelvic organ support (i.e., pelvic organ prolapse) is common in menopausal women. Surgical reconstruction of pelvic organ prolapse is plagued with high failure rates. The objective of this study was to determine the effects of estrogen on biomechanical properties, lysyl oxidase (LOX), collagen content, and histomorphology of the vagina with or without surgical injury. Nulliparous ovariectomized guinea pigs were treated systemically with either 50 μg/kg/day estradiol (E2,) or vehicle. After 2 wk, vaginal surgery was performed, and animals were treated with either beta-aminopropionitrile (BAPN, an irreversible LOX inhibitor), or vehicle to determine the role of LOX in recovery of the vaginal wall from injury with or without E2. Estradiol resulted in (i) significant growth, increased smooth muscle, and increased thickness of the vagina, (ii) increased distensibility without compromise of maximal force at failure, and (iii) increased total and cross-linked collagen. In the absence of E2, BAPN resulted in decreased collagen and vaginal wall strength in the area of the injury. In contrast, in E2-treated animals, increased distensibility, maximal forces, and total collagen were maintained despite BAPN. Interestingly, LOX mRNA was induced dramatically (9.5-fold) in the injured vagina with or without E2 at 4 days. By 21 days, however, LOX levels declined to near baseline in E2-deprived animals. LOX mRNA levels remained strikingly elevated (12-fold) at 21 days in the estrogenized vagina. The results suggest that prolonged E2 induced increases in LOX, and collagen cross-links may act to sustain a matrix environment that optimizes long-term surgical wound healing in the vagina.

Objective: The objective of the study was to compare the vaginal apex pullout distance using 2 vs 3 suspension sutures during transvaginal uterosacral ligament suspension (USLS) and to describe relationships to ipsilateral ureter and nerve structures., Study Design: Eight fresh-frozen female cadavers were studied. After hysterectomy, a transvaginal USLS was performed with placement of 3 suspension sutures per side. The 2 most distal sutures on each ligament were tied. A screw-and-washer attachment was secured in the middle of the vaginal cuff and tied to a pulley system with surgical filament. Distal traction was applied with sequentially increasing weight loads. Distal migration of the vaginal apex from baseline with each weight load was recorded. The most proximal suspension suture was tied and the procedure repeated. Horizontal distances between each USLS suture to the ipsilateral ureter were measured. Three discrete points were marked on sacral nerves S1-S3, and the shortest distance between each point and each ipsilateral USLS suture was measured. Descriptive statistics and repeated-measures analysis of variance were performed., Results: Application of each load resulted in greater migration distances for the 2 suture configuration when compared with 3 sutures (P < .05). Differences were greatest for the 3 kg load (mean ± SEM, 2.0 ± 0.2 vs 1.5 ± 0.1 cm, respectively). Distances to ipsilateral ureter between the 2 most cranial sutures were comparable (P > .05). The most cranial USLS suture was closest to sacral nerves S1-S3., Conclusion: In this cadaveric study, 3 USLS sutures provided more support to the vaginal apex than 2 sutures, although the absolute difference may not be clinically significant. The most cranial suture had the smallest distances to sacral nerves S1-S3., (Copyright © 2013 Mosby, Inc. All rights reserved.)

Objective: To identify factors that may contribute to patient satisfaction with outcome in women who received retropubic and transobturator midurethral slings., Methods: Satisfaction was assessed 12 months postsurgery as a planned analysis in 597 participants from a multicenter randomized trial comparing retropubic with transobturator midurethral slings using the Incontinence Surgery Satisfaction Questionnaire. Significantly related variables associated with satisfaction in univariable analyses were entered into multivariable logistic regression models to test their independent association with satisfaction., Results: One year after surgery, 264 (88.6%) in the retropubic group and 263 (88.0%) in the transobturator group completed satisfaction questionnaires. Both treatment groups demonstrated a high level of satisfaction with respect to urine leakage (retropubic 85.9% compared with transobturator 90.0%; P=.52), urgency to urinate, frequency of urination, capability of physical activity, social activity, ability to engage in sexual activity, and from an emotional standpoint. Baseline characteristics associated with reduced satisfaction were higher Medical, Epidemiologic, and Social Aspects of Aging Questionnaire urgency subscale scores, detrusor overactivity, and diabetes mellitus. The severity of both objective (frequency of incontinence episodes, pad test weight) and subjective (Incontinence Impact Questionnaire and Urogenital Distress Inventory score) measures of incontinence at baseline and the patients' perceptions of preoperative severity of incontinence and expectations of achieving postoperative cure or improvement were not statistically different between satisfied and unsatisfied patients. In the final multivariable model, satisfaction was associated with overall treatment success (odds ratio [OR] 2.57, 95% confidence interval [CI] 1.29-5.13], greater reduction in Urogenital Distress Inventory (OR 0.97, 95% CI 0.96-0.98) and Incontinence Impact Questionnaire scores (OR 0.99, 95% CI 0.98-0.99), and fewer complications (OR 0.55, 95% CI 0.30-0.99)., Conclusion: The high level of satisfaction seen after midurethral sling procedures is associated with greater objective and patient-perceived improvement of stress incontinence and fewer complications., Clinical Trial Registration: ClinicalTrials.gov, www.clinicaltrials.gov, NCT00325039., Level of Evidence: II.

Objective: To evaluate the integrity of 3 different types of sliding knots in a vaginal surgery model., Study Design: Nonidentical sliding (NS), loop-to-strand sliding (LTS), and parallel sliding (PS) knots with 4 throws each were tied on a vaginal surgery model with 0 polyglactin-910 and tested until failure. The main outcomes studied were the maximum load reached at failure and the proportion of each type of sliding knot that either unraveled or broke during standardized laboratory testing., Results: PS knots were significantly stronger than either NS or LTS knots, with no difference in strength between NS and LTS knots. Most of the NS and LTS knots failed by slippage, where as most of the PS knots failed by rupture at the knot site., Conclusions: PS knots using 0-vicryl are significantly stronger than NS and LTS knots and should be preferentially considered when performing vaginal surgery., (Copyright © 2013 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.)

Introduction and Hypothesis: Our aim was to estimate the physiologic effects of early repeat transection and repair on the contractile properties of the external anal sphincter (EAS) in a rat model., Methods: Eighty young female rats underwent anal sphincter transection and repair. After 7 days, they were randomized to repeat sphincter transection (injury-injury, n = 40) or sham operation (injury-sham, n = 40). Thereafter, the anal sphincter complex was dissected, mounted, and analyzed for contractile function 7 days, 21 days, 3 months, or 6 months after the second operation. Contractile function was also determined in 40 age-matched unoperated controls (n = 10 for each time point). Statistical analysis was performed using analysis of variance (ANOVA) with Tukey-Kramer adjustment for multiple testing. P ≤ 0.05 was considered significant., Results: Although single injury (injury-sham) resulted in modest compromise of sphincter function, repeat injury (injury-injury) resulted in profound impairment of twitch tension, maximal tetanic responses, and maximal electrical-field stimulation (EFS) induced-force generation at 7 days. After single injury, parameters of contractile function returned to baseline uninjured levels by 21 days. In contrast, sphincter function remained reduced 21 days after repeat injury. Contractile function of sphincters from both injury-sham and injury-injury animals were no longer impaired at 3 and 6 months., Conclusion: In this animal model, repeat injury and repair of the EAS 7 days after the initial injury resulted in prolonged compromise of EAS function compared with single injury. Nevertheless, contractile function of the double-injured sphincter fully recovered with time, resulting in no long-term impairment.

Introduction and Hypothesis: Our purpose was to assess the accuracy of history and physical, cystourethroscopy, and magnetic resonance imaging (MRI) in preoperative diagnosis of urethral diverticula., Methods: This was a retrospective review of all patients who underwent surgical excision of periurethral masses between 1998 and 2009. Presenting symptoms and examination and cystourethroscopic findings were noted. A single pathologist reviewed all cases and provided the reference standard for the diagnosis of a diverticulum. A single radiologist reviewed all preoperative MRI studies. Sensitivities, specificities, and positive and negative predictive values (PPV, NPV) were determined., Results: Diverticula were diagnosed in 36/60 (60 %) patients. Transurethral fluid expression on palpation and recurrent urinary tract infection (UTI) had high PPV. Sensitivity, specificity, PPV, and NPV, respectively, for cystourethroscopy were 33 %, 100 %, 100 %, and 42 %; for MRI, these were 100 %, 83 %, 92 %, and 100 %., Conclusion: These data reinforce the utility of transurethral fluid expression for preoperative evaluation of urethral diverticula. Additionally, MRI is an excellent adjunctive diagnostic tool and may assist in establishing the diagnosis when there is high clinical suspicion of a urethral diverticulum but nonconfirmatory findings on cystourethroscopy.

Objective: To evaluate if suture type and caliber or level of residency training affects strength and mode of failure of surgical knots., Design: All residents in an obstetrics and gynecology training program were invited to tie knots on a bench model using 2 calibers (0 and 3-0) of 2 types of surgical suture (polyglactin 910 and polydioxanone). The failure load, mode of failure, and loop lengths of the knots were determined., Setting: University of Texas Southwestern Medical Center, Dallas, Texas., Participants: Physicians enrolled in the University of Texas Southwestern Medical Center Obstetrics and Gynecology residency training program., Results: Seventy-one of 73 residents participated. Knots tied with 0-caliber sutures had a higher mean failure load than those tied with 3-0 caliber sutures. For each type and caliber of suture, there were no differences in failure load between each level of residency training. However, senior residents tied knots with shorter loop lengths and had a lower proportion of knots that unraveled or slipped., Conclusions: Even though there were no differences in failure loads, senior residents tied tighter and more secure knots than their junior counterparts., (Copyright © 2012 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.)

Introduction and Hypothesis: Reports of sensory neuropathy attributed to uterosacral ligament suspension (USLS) have emerged. The objectives of this study were to assess the rate of sensory neuropathy symptoms following transvaginal USLS at a single institution during a 5-year period and to describe the evaluation, management, and outcomes in these patients., Methods: A retrospective review of records identified 278 women who underwent transvaginal USLS during the study period. Inpatient and outpatient records within the first 4 weeks postsurgery were reviewed. Women with new-onset buttock and/or lower-extremity pain, numbness, weakness or a combination of these symptoms were identified. Demographic data, intraoperative data, and management modalities and outcomes were collected., Results: Nineteen (6.8 %) women met criteria for inclusion. The most common symptom was buttock pain (73.7 % of cases). Pain radiation to the ipsilateral posterior thigh was present in 11 cases (57.9 %). The majority of women (73.7 %) reported pain symptoms on the right side. Conservative treatment modalities were initially implemented in all women. Four women (21 %) underwent suture removal a median of 1.75 months after USLS. Full symptom resolution was reported in 13 (68.4 %) women a median of 6 months after USLS. The remaining women experienced partial symptom resolution with ongoing conservative management., Conclusions: Sensory neuropathy is common in women who undergo transvaginal USLS. As quality of life may be significantly affected, any symptoms of buttock or lower-extremity pain in the immediate postoperative period warrant a thorough evaluation and close follow-up, with early suture removal consideration.

Objective: Although gynecologists perform a large number of surgeries in close proximity to the ureters and the urinary bladder, traditionally, Obstetrics and Gynecology resident physicians are not formally taught to perform cystoscopy. The primary objective was to document resident physicians' performance in diagnostic cystoscopic instrumentation and technique. The secondary objective was to examine if reported prior cystoscopic experience was associated with superior performance., Methods: Fifty-one postgraduate year 4 residents with reported experience with cystoscopy were evaluated using an operation-specific checklist and a global ratings scale based on the Objective Structured Assessment of Technical Skill model. Before evaluation, they attended a formal training session in cystoscopy, which included practice on a bench model of a simulated bladder., Results: Forty-three of the 51 residents were able to successfully perform a thorough diagnostic examination immediately after the course. Six of the 8 failures were re-evaluated 2 weeks later and successfully performed a complete examination at that time. Before the course, the residents had performed a mean of 12.2 cystoscopic examinations as the primary surgeon (median, 12; range, 2-33). The number of reported cystoscopic examinations performed before the course did not correlate with the ability to perform a thorough cystoscopic examination (r = -0.109; P = 0.496)., Conclusions: For this group of residents, there was poor correlation between the number of reported cystoscopic examinations and the ability to perform diagnostic cystoscopy. Trainees may not be able to determine when they have received enough instruction in hands-on training with models before acquisition of technical skills.

Objective: The perspective of recent graduates is important in assessing the adequacy of training and for improving clinical and surgical education. The objective of this study was to evaluate the urogynecology experience of recent Obstetrics and Gynecology residency graduates, to examine perceived and actual surgical load during and after residency, and to assess comfort level with diagnosing and treating urinary incontinence and pelvic organ prolapse., Design: Questionnaire assessing satisfaction with urogynecology rotation, perceived surgical load in residency, estimates of surgical procedures in current practice, and comfort level with diagnosing and treating incontinence and prolapse., Setting: University of Texas Southwestern Medical Center, Dallas, Texas., Participants: Graduates from the University of Texas Southwestern Obstetrics and Gynecology residency program (1997-2006)., Results: Fifty-five percent (82/150) responded, with most being Caucasian, female, in private practice, and practicing in the Southern part of the United States. Forty-one of seventy-six (54%) rated their urogynecology experience as either acceptable, above average or superior. The most common procedures performed in residency were cystoscopy (mean, 11.3 ± 5.2 cases per resident) and anterior (mean, 8.9 ± 4.3 cases per resident) and posterior repair (mean, 11.1 ± 5.7 cases per resident). Increasing the surgical volume was reported as the single most important factor that would have enhanced their training. In practice, midurethral slings were the most commonly performed incontinence procedures. Few were performing other urogynecologic cases in practice, except for anterior-posterior colporrhaphy and cystoscopy. Sixty-six of 70 (94%) in practice were comfortable with diagnosing prolapse and incontinence. Seventy percent and 80% estimated that less than 1 quarter of their patient population had prolapse or incontinence, respectively., Conclusions: Recent graduates from this program are comfortable making the diagnosis of prolapse and incontinence. The most commonly performed surgical procedures in residency and in practice include anterior and posterior colporrhaphy and cystoscopy., (Copyright © 2012 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.)

Introduction and Hypothesis: This study aims to describe multichannel urodynamic indices and pelvic organ prolapse quantification (POP-Q) in primiparous women 3 months after vaginal delivery., Methods: This was a secondary analysis of a group of women who had been randomized to either coached or non-coached pushing during the second stage of labor. Primiparous women were evaluated with POP-Q examination and multichannel urodynamic testing 3 months after vaginal delivery., Results: Of 128 women evaluated, the cumulative stage of prolapse was distributed as 4.7% stage 0, 39% stage I, 56% stage II, and none with stage III prolapse or greater. For the anterior compartment, most had stage II prolapse. Stage I prolapse predominated for both the central and posterior compartments. Of the women, 14.1% had urodynamic stress incontinence, 12.5% had detrusor overactivity, and 6% had both., Conclusions: In a predominantly Hispanic primiparous population, ICS POP-Q stage II prolapse of the vagina, urodynamic stress incontinence, and detrusor overactivity are common findings at a 3-month postpartum assessment.

Objective: : This study aimed to compare the effects of a special bowel recipe with psyllium on symptoms of constipation., Methods: : Women with symptoms of constipation were randomized to 6 weeks of either psyllium or a special bowel recipe. Patients completed a constipation scoring questionnaire and recorded characteristics of each bowel movement., Results: : A total of 53 participants completed prestudy and poststudy constipation scoring questionnaires. Both groups demonstrated improvement in constipation scores (psyllium: 13.9 ± 4.7 to 9.0 ± 4.6, P < 0.001; recipe: 13.6 ± 4.1 to 8.5 ± 5.0, P < 0.001). Mean differences in pretreatment and posttreatment constipation scores were not statistically different between the 2 groups.Subjects taking the bowel recipe strained only 20% of the time compared with those using psyllium who strained 57% of the time (P = 0.007). Other symptoms improved from baseline, but the majority was not different between treatment groups., Conclusions: : The bowel recipe demonstrated no significant difference in efficacy to pure fiber.

Aims: To identify predictors and correlates of patient satisfaction 24 months after Burch colpopexy or autologous fascial sling for treatment of stress urinary incontinence (SUI)., Methods: Participants were the 655 randomized subjects in the Stress Incontinence Surgical Treatment Efficacy Trial (SISTEr). Variables potentially associated with satisfaction were tested in bivariate analysis, including demographics, baseline clinical characteristics of incontinence, and outcomes on validated subjective and objective measures. Satisfaction with treatment was defined as a response of "completely satisfied" or "mostly satisfied" on the Patient Satisfaction Questionnaire (PSQ) at 24 months. Variables significantly related to satisfaction were entered into multivariable regression models to test their independent association with satisfaction., Results: At 24 months post-surgery, 480 (73%) participants completed the PSQ. Mean (±SD) age of the sample was 52 (±10) years and 77% were white. Most (82%) were completely or mostly satisfied with their surgery related to urine leakage. In the final multivariable model, patient satisfaction was associated with greater reduction in SUI symptoms (from baseline to 24 months; OR = 1.17, 95% CI: 1.10, 1.24) and greater reductions in symptom distress (OR = 1.16; CI: 1.08, 1.24). Lower odds of satisfaction were associated with greater urge incontinence symptoms at baseline (OR = 0.09, CI: 0.04, 0.22), detrusor overactivity at 24 months (OR = 0.29, CI: 0.12, 0.69), and a positive stress test at 24 months (OR = 0.45, CI: 0.22, 0.91)., Conclusions: Stress incontinent women who also have urge incontinence symptoms may benefit from additional preoperative counseling to set realistic expectations about potential surgical outcomes or proactive treatment of urge incontinence symptoms to minimize their post-operative impact., (© 2010 Wiley-Liss, Inc.)

Aims/hypothesis: Intramyocellular lipids (IMCL) accumulation is a classical feature of metabolic diseases. We hypothesised that IMCL accumulate mainly as a consequence of increased adiposity and independently of type 2 diabetes. To test this, we examined IMCL accumulation in two different models and four different populations of participants: muscle biopsies and primary human muscle cells derived from non-obese and obese participants with or without type 2 diabetes. The mechanism regulating IMCL accumulation was also studied., Methods: Muscle biopsies were obtained from ten non-obese and seven obese participants without type 2 diabetes, and from eight non-obese and eight obese type 2 diabetic patients. Mitochondrial respiration, citrate synthase activity and both AMP-activated protein kinase and acetyl-CoA carboxylase phosphorylation were measured in muscle tissue. Lipid accumulation in muscle and primary myotubes was estimated by Oil Red O staining and fatty acid translocase (FAT)/CD36 localisation by immunofluorescence., Results: Obesity and type 2 diabetes are independently characterised by skeletal muscle IMCL accumulation and permanent FAT/CD36 relocation. Mitochondrial function is not reduced in type 2 diabetes. IMCL accumulation was independent of type 2 diabetes in cultured myotubes and was correlated with obesity markers of the donor. In obese participants, membrane relocation of FAT/CD36 is a determinant of IMCL accumulation., Conclusions/interpretation: In skeletal muscle, mitochondrial function is normal in type 2 diabetes, while IMCL accumulation is dependent upon obesity or type 2 diabetes and is related to sarcolemmal FAT/CD36 relocation. In cultured myotubes, IMCL content and FAT/CD36 relocation are independent of type 2 diabetes, suggesting that distinct factors in obesity and type 2 diabetes contribute to permanent FAT/CD36 relocation ex vivo.

Objective: To estimate the effect of myogenic stem cells on contractile function of the external anal sphincter after transection with or without repair in an animal model., Methods: One hundred twenty virginal female rats were randomly assigned to repair (n=60) or no repair (n=60) after anal sphincter transection. Animals were further divided into two groups: 40-microliter injection at the transection site with either phosphate-buffered solution (control) or myogenic stem cells (3.2x10 cells). Animals were killed at 7, 21, or 90 days, and the anal sphincter complex dissected and analyzed for contractile function., Results: Contractile function of the external anal sphincter was severely impaired 7 days after sphincter transection with or without repair. Twitch tension, maximal tetanic contraction, and maximal contractile force in response to electrical field stimulation improved significantly with time after sphincter repair. Injection of myogenic stem cells in the anal sphincter at the time of repair resulted in superior contractile function at both 7 days and 90 days compared with controls. Interestingly, contractile function of the nonrepaired external anal sphincter did not improve with time with or without myogenic stem cells. Indicators of denervation (fatigue and twitch or tetany ratios) did not change among groups., Conclusion: In this animal model, injection of myogenic stem cells at the time of external anal sphincter repair resulted in enhanced contractile function at 90 days compared with repair alone. Without repair, function of the external anal sphincter was not improved by stem cell therapy at any time point. These results suggest that addition of myogenic stem cells improves both acute and long-term function of the external anal sphincter after mechanical injury.

Surgical management for urinary incontinence is appropriate when conservative treatment is unsuccessful or not desired. Although many operations have been developed for the treatment of incontinence, there is no consensus on which is the single 'best' treatment and therapy should be individualized for each patient. This review will mainly focus on stress urinary incontinence, discuss some of the theories behind the pathophysiology of this condition, and provide some rationale for selecting a particular surgical procedure for incontinence.

Objective: The purpose of this study was to evaluate the effect of denervation on contractile properties of the external anal sphincter (EAS) of the female rat., Study Design: Sham operation, pudendal nerve transection, pelvic neurectomy, or combined pudendal nerve transection/pelvic neurectomy was performed in young female rats. Contractile function of the EAS was determined after 2 weeks., Results: Maximal force-generating capacity of the EAS was not impaired by bilateral pudendal denervation or pelvic neurectomy. Twitch tension, however, was decreased, and fatigability increased after pelvic neurectomy. Combined bilateral pudendal nerve-transection plus pelvic neurectomy resulted in compromised force-generating capacity, decreased twitch tension, and increased fatigability of the anal sphincter., Conclusion: Subtle changes in EAS function are detectable after pelvic neurectomy, but not pudendal denervation. In contrast, combination pudendal and pelvic neurectomy resulted in severe compromise of EAS function. These data suggest that EAS function is relatively preserved unless injury occurs to > 1 source of innervation.

Objective: To estimate the strongest location and optimal orientation of suture placement in the anterior longitudinal ligament for abdominal sacrocolpopexy in female cadavers., Methods: The anterior longitudinal ligament was exposed below the level of the aortic bifurcation in 23 unembalmed female cadavers. To the right of midline of the vertebral column, sutures were placed in a horizontal orientation into the ligament at the sacral promontory, 1 and 2 cm above (sacral promontory+1 and sacral promontory+2), and 1, 2, and 3 cm below (sacral promontory-1, sacral promontory-2 and sacral promontory-3). At these same locations, but to the left of midline, sutures were placed in a vertical orientation. Pull-out force and ligament thickness at each level of testing were measured. Data were analyzed using Student t test and repeated measures analysis of variance., Results: Sutures (either horizontally or vertically placed) had greater pull-out strengths at or above, compared with those placed below, the level of the sacral promontory. At sacral promontory and sacral promontory+1, there were no differences in the pull-out strengths of the ligament when sutures were placed in either orientation. However, horizontally placed sutures had significantly greater pull-out strengths than vertically placed sutures at sacral promontory+2, sacral promontory-1 and sacral promontory-2. Ligament thickness decreased from 2 cm above (mean+/-standard error of the mean sacral promontory+2, 1.8+/-0.1 mm) to 3 cm below (sacral promontory-3, 1.3+/-0.1 mm) the sacral promontory., Conclusion: Sutures placed in the anterior longitudinal ligament at or above the sacral promontory are more secure than those placed below. Horizontally oriented sutures should be considered for mesh attachment below the sacral promontory because they are significantly stronger when compared with vertically placed sutures.

Objective: To estimate the effects of pregnancy, parturition, and anal sphincter laceration (with repair) on external anal sphincter morphology and neurophysiology and to define the time course of these effects after injury., Methods: Within 4 hours of vaginal delivery, 80 rats underwent either sham or anal sphincter laceration with repair. After 3 days, 3 weeks, and 3 and 6 months (n=20 for each time point), animals were killed, and the anal sphincter complexes dissected and removed for neurophysiologic studies. Twitch tension, peak tetanic force, fatigue, and maximal electrical field-stimulated force generation were determined. Sphincters were then fixed and serially sectioned (5-micrometer thickness) at 100-micrometer intervals for histologic analysis., Results: Maximal electrical field-stimulated force generation, maximal tetanic contraction, and twitch tension were decreased in the external anal sphincter 3 days after anal sphincter laceration with repair compared with sham-operated parturient rats (3.3 g compared with 11.6 g, 4.5 g compared with 14.5 g, and 0.6 g compared with 2.0 g, respectively, all P<.02). Increased fatigability of the sphincter muscle was observed in all newly parturient rats-sham and anal sphincter laceration with repair; recovery occurred in the shams by 3 months. A gradual recovery occurred in all these neurophysiologic measures, with no significant differences between anal sphincter laceration with repair and shams by 6 months postpartum., Conclusion: Repaired anal sphincter transection in periparturient animals results in short-term severe compromise of neurophysiologic function of the external anal sphincter. Over time, however, force generation recovers and approximates that of postpartum rats with intact anal sphincters.

Objective: The objective of the study was to assess whether cardinal-uterosacral ligament lateral vaginal cuff angle stitches at the time of total hysterectomy may assist in preventing subsequent apical vault prolapse., Study Design: Total hysterectomies without cuff angle stitches were performed in 7 unembalmed cadavers. Successive hanging weights of 1, 2, 3, and 4 kg were loaded against the vaginal cuff and distances moved were recorded. The same process was repeated after tying bilateral angle stitches., Results: Average distances pulled with 1, 2, 3, and 4 kg of traction against the cuff without angle stitches were 14.6 +/- 1.4, 19.1 +/- 1.7, 23.1 +/- 2.3, and 27.6 +/- 2.0 mm, respectively. After completing angle sutures, these distances were 13.1 +/-1.1, 17.3 +/- 1.5, 20.9 +/- 1.9, and 25.1 +/- 2.6 mm, respectively (P = .026)., Conclusion: Methodical incorporation of the cardinal-uterosacral ligaments into the vaginal cuff margins at time of total abdominal hysterectomy may help minimize subsequent apical vault prolapse.