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Harris KT, Kong L, Vargas M, Hou V, Pyrzanowski JL, Desanto K, Wilcox DT, Wood D. Considerations and Outcomes for Adolescents and Young Adults With Cloacal Anomalies: A Scoping Review of Urologic, Colorectal, Gynecologic and Psychosocial Concerns. Urology 2024; 183:264-273. [PMID: 37839472 DOI: 10.1016/j.urology.2023.08.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/07/2023] [Accepted: 08/30/2023] [Indexed: 10/17/2023]
Abstract
The objective of this scoping review is to provide a summary of the current literature regarding adolescents and young adults with histories of cloacal anomalies. Preferred Reporting Items for Systematic Reviews and Meta-analysis Extension for Scoping Reviews were used. Data were categorized into four domains-urologic, colorectal, gynecologic/obstetric, and sexual/psychosocial. The current literature has poor study quality and mostly consists of retrospective studies of small cohorts with varying definitions of outcomes. Women with cloacal anomalies are at high risk for urologic dysfunction but can maintain kidney health and achieve social continence with medical and surgical management. Sexual function and adult healthcare transition are areas ripe for improved future research.
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Affiliation(s)
- Kelly T Harris
- Pediatric Urology Research Enterprise (PURE), Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO; Division of Urology, Department of Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO; University of Colorado School of Medicine, Aurora, CO.
| | - Lily Kong
- Pediatric Urology Research Enterprise (PURE), Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO; Division of Urology, Department of Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO; University of Colorado School of Medicine, Aurora, CO
| | - Maria Vargas
- Pediatric Urology Research Enterprise (PURE), Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO; Division of Urology, Department of Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO; University of Colorado School of Medicine, Aurora, CO
| | - Vincent Hou
- Pediatric Urology Research Enterprise (PURE), Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO; Division of Urology, Department of Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO; University of Colorado School of Medicine, Aurora, CO
| | - Jennifer L Pyrzanowski
- Pediatric Urology Research Enterprise (PURE), Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO; Division of Urology, Department of Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO; University of Colorado School of Medicine, Aurora, CO
| | - Kristen Desanto
- Strauss Health Sciences Library, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Duncan T Wilcox
- Pediatric Urology Research Enterprise (PURE), Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO; Division of Urology, Department of Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO; University of Colorado School of Medicine, Aurora, CO
| | - Dan Wood
- Pediatric Urology Research Enterprise (PURE), Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO; Division of Urology, Department of Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO; University of Colorado School of Medicine, Aurora, CO
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Reppucci ML, Alaniz VI, Wehrli LA, Torre LDL, Wood D, Wilcox DT, Appiah LC, Peña A, Bischoff A. Reproductive and Family Building Considerations for Female Patients with Anorectal And Urogenital Malformations. J Pediatr Surg 2023; 58:1450-1457. [PMID: 36229236 DOI: 10.1016/j.jpedsurg.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/04/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Little is known about fertility and pregnancy outcomes in patients with anorectal malformations (ARM), particularly those with long common channel cloaca and cloacal exstrophy who may have impaired fertility. The purpose of this study is to describe pregnancy and offspring data from a cohort of patients with ARM. METHODS A retrospective review of female patients with ARM from our database, which includes patients operated on since 1980, was performed as well as a review of the literature. Demographic, operative, and self-reported fertility, obstetric, and offspring data were collected. RESULTS There were 37 females identified in our database who reported any pregnancy or having children. There were 59 pregnancies, 48 (81.3%) of which resulted in live birth. The most common mode of delivery was cesarean delivery. There were five patients with long channel cloaca (>3 cm) and one with cloacal exstrophy that reported 11 total pregnancies, eight of which resulted in live birth. Four cloaca patients in which the native vagina was pulled through were able to conceive spontaneously. Three patients with cloacal anomalies required in vitro fertilization to conceive; one was unsuccessful. No patients who underwent bowel partial vaginal replacement became pregnant. Women with ARM face many unique challenges in assisted reproduction, pregnancy, and delivery owing to their anatomy and associated anomalies. CONCLUSIONS Women with recto-perineal, recto-vestibular, and cloacas in which the native vagina was pulled through are capable of spontaneous pregnancy. Assisted reproduction, however, may be needed those with more complex anomalies and surgical repairs. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Marina L Reppucci
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Veronica I Alaniz
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA; Section of Pediatric and Adolescent Gynecology, Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Lea A Wehrli
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Luis de La Torre
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Dan Wood
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Duncan T Wilcox
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pediatric Urology, Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Leslie C Appiah
- Section of Pediatric and Adolescent Gynecology, Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Alberto Peña
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Andrea Bischoff
- International Center for Colorectal and Urogenital Care, Division of Pediatric Surgery, Children's Hospital Colorado, 13213 E 16th Ave, Box 323, Anschutz Medical Campus, Aurora, CO 80045, USA.
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Management of Anorectal Malformations and Hirschsprung Disease. Surg Clin North Am 2022; 102:695-714. [DOI: 10.1016/j.suc.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Versteegh HP, Gardner DS, Scriven L, Martens L, Kluivers K, Hewitt G, de Blaauw I, Wood RJ, Williams A, Sutcliffe J. Reconsidering Diagnosis, Treatment, and Postoperative Care in Children with Cloacal Malformations. J Pediatr Adolesc Gynecol 2021; 34:773-779. [PMID: 34419606 DOI: 10.1016/j.jpag.2021.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/07/2021] [Indexed: 12/25/2022]
Abstract
Cloacal malformations are among the most complex types of anorectal malformation and are characterized by the urological, genital, and intestinal tracts opening through a single common channel in the perineum. Long-term outcome is affected by multiple factors, which include anatomical variants of the malformation itself, associated anomalies, and the surgical approach. Reconsidering these variables and their influence on "patient important" function might lead to strategies that are more outcome-driven than focused on the creation of normal anatomy. Key outcomes reflect function in each of the involved tracts and the follow-up needed should therefore not only include the classical fields of colorectal surgery and urology but also focus on items such as gynecology, sexuality, family-building, and quality of life as well as other psychological aspects. Involving patients and families in determining optimal treatment strategies and outcome measures could lead to improved outcomes for the individual patient. A strategy to support delivery of personalized care for patients with cloacal malformations by aiming to define the best functional outcomes achievable for any individual, then select the treatment pathway most likely deliver that, with the minimum morbidity and cost, would be attractive. Combining the current therapies with ongoing technological advances such as tissue expansion might be a way to achieve this.
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Affiliation(s)
- Hendt P Versteegh
- Department of Pediatric Surgery, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands.
| | - David S Gardner
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Nottingham, United Kingdom
| | - Lucy Scriven
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Nottingham, United Kingdom
| | - Lisanne Martens
- Department of Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Kirsten Kluivers
- Department of Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Geri Hewitt
- Department of Pediatric and Adolescent Gynecology, Nationwide Children's Hospital, Columbus, Ohio
| | - Ivo de Blaauw
- Department of Pediatric Surgery, Radboud University Medical Center, Amalia Children's Hospital, Nijmegen, The Netherlands
| | - Richard J Wood
- Department of Pediatric Colorectal and Pelvic Reconstructive Surgery, Nationwide Children's Hospital, Columbus, Ohio
| | - Alun Williams
- Departments of Paediatric Surgery and Urology, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Jonathan Sutcliffe
- Department of Paediatric Surgery, Leeds Teaching Hospitals NHS Trust, The General Infirmary at Leeds, Leeds, United Kingdom
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Treatment guidelines for persistent cloaca, cloacal exstrophy, and Mayer–Rokitansky–Küster–Häuser syndrome for the appropriate transitional care of patients. Surg Today 2019; 49:985-1002. [DOI: 10.1007/s00595-019-01810-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 02/26/2019] [Indexed: 11/30/2022]
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A descriptive model for a multidisciplinary unit for colorectal and pelvic malformations. J Pediatr Surg 2019; 54:479-485. [PMID: 29778545 DOI: 10.1016/j.jpedsurg.2018.04.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 03/30/2018] [Accepted: 04/15/2018] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Patients with anorectal malformations (ARM), Hirschsprung disease (HD), and colonic motility disorders often require care from specialists across a variety of fields, including colorectal surgery, urology, gynecology, and GI motility. We sought to describe the process of creating a collaborative process for the care of these complex patients. METHODS We developed a model of a devoted center for these conditions that includes physicians, psychologists, social workers, nurses, and advanced practice nurses. Our weekly planning strategy includes a meeting with representatives of all specialties to review all patients prior to evaluation in our multidisciplinary clinic, followed by combined exams under anesthesia or surgical intervention as needed. RESULTS There are 31 people working directly in the Center at present. From the Center's start in 2014 until 2017, 1258 patients were cared for from all 50 United States and 62 countries. 360 patients had an ARM (110 had a cloacal malformation, 11 had cloacal exstrophy), 223 presented with HD, 71 had a spinal malformation or injury causing neurogenic bowel, 321 had severe functional constipation or colonic dysmotility, and 162 had other diagnoses including familial polyposis, Crohn's disease, or ulcerative colitis. We have had 170 multidisciplinary meetings, 170 multispecialty outpatient, and 52 nurse practitioner clinics. In our bowel management program we have seen a total of 514 patients in 36 sessions. CONCLUSION This is the first report describing the design of a multidisciplinary team approach for patients with colorectal and complex pelvic malformations. We found that approaching these patients in a collaborative way allows for combined medical and surgical decisions with many providers simultaneously, facilitates therapy, and can potentially improve patient outcomes. We hope that this model will help establish new-devoted centers in other locations to encourage centralized care for these rare malformations. LEVEL OF EVIDENCE IV.
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Vilanova-Sanchez A, McCracken K, Halleran DR, Wood RJ, Reck-Burneo CA, Levitt MA, Hewitt G. Obstetrical Outcomes in Adult Patients Born with Complex Anorectal Malformations and Cloacal Anomalies: A Literature Review. J Pediatr Adolesc Gynecol 2019; 32:7-14. [PMID: 30367985 DOI: 10.1016/j.jpag.2018.10.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 10/12/2018] [Accepted: 10/15/2018] [Indexed: 12/22/2022]
Abstract
Patients born with complex anorectal malformations often have associated Müllerian anomalies, which might affect fertility and obstetrical outcomes. Other vertebral-anorectal-tracheoesophageal-renal-limb associations, such as renal or cardiac anomalies, could also affect pregnancy intention, fertility rates, and recommendations about mode of delivery or obstetrical outcomes. Associated conditions present at birth, like hydrocolpos, could also potentially affect fertility. Depending on the complexity of the anomaly, primary reconstruction might include vaginoplasty, vaginal interposition, perineal body reconstruction, and extensive pelvic dissection. After the initial reconstruction, patients might have multiple additional surgeries for stoma reversal, bladder augmentation, and creation of conduits, all with potential for pelvic adhesions. Pregnancy intention, fertility rates, mode of delivery, and obstetrical outcomes data are limited in this patient population, making it challenging to counsel patients and their families. We sought to evaluate all available literature in an attempt to better counsel families. A PubMed literature search was undertaken to review this topic. Search terms of "cloaca," "anorectal malformation," "pregnancy," "cloacal exstrophy," "vaginal delivery," and "cesarean section" were used and citation lists from all identified articles were checked to ensure that all possible articles were included in the review. We also outline comorbidities from the fetal period to adulthood that might affect reproductive health. Of the articles on anorectal and cloacal anomalies, 13 reports were identified that covered obstetrical outcomes. They were in patients with previous anorectal malformation, cloaca, and cloacal exstrophy repair. Twenty-four pregnancies were reported in 16 patients. Two ectopic pregnancies, 5 spontaneous miscarriages, 1 triplet pregnancy, and 16 singleton pregnancies were reported with a total of 19 live births. Regarding the method of conception, 15/18 pregnancies occurred spontaneously and 3/18 were via assisted reproductive technology with in vitro fertilization. There were 19 live births, of which at least 8 were preterm. Müllerian anatomy was reported in 8 of 13 articles. Only 2 patients underwent vaginal delivery (1 patient with repaired cloaca malformation had an operative vaginal delivery and 1 patient with repaired imperforate anus with rectovaginal fistula had a normal spontaneous vaginal delivery). The remaining patients all underwent a cesarean section. There were no reported cases of maternal mortality, and maternal morbidity was limited to recurrent urinary tract infections and worsening chronic kidney disease. There is a paucity of information regarding obstetrical outcomes in adult anorectal and cloaca patients. However, patients with previous cloacal repairs have achieved pregnancy spontaneously, as well as with in vitro fertilization. Patients with repaired cloacal malformations are at increased risk of preterm birth and cesarean delivery. Most patients with cloacal anomalies have an associated Müllerian anomaly and therefore have an increased risk of preterm labor. From our review we conclude that contraception should be offered to patients not desiring pregnancy, and cesarean section is likely the preferred mode of delivery. On the basis of this review, we recommend proactive data collection of all such patients to document outcomes and collaboration among providers and between centers devoted to this complex patient population.
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Affiliation(s)
| | | | | | | | | | | | - Geri Hewitt
- Nationwide Children's Hospital, Columbus, Ohio
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Compromised vitality of spermatozoa after contact with colonic mucosa in mice: implications for fertility in colon vaginoplasty patients. Pediatr Surg Int 2019; 35:71-75. [PMID: 30374634 DOI: 10.1007/s00383-018-4377-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/18/2018] [Indexed: 02/06/2023]
Abstract
AIM OF THE STUDY Colon vaginoplasty (CV) is often performed for cloacal malformation (CM). We used mice to study the vitality of spermatozoa after contact with colonic mucosa as a factor contributing to infertility. METHODS Spermatozoa isolated from the epididymides of C57BL/6J male mice (n = 23) were syringed directly into the vaginas (Vag-group) or colons (Colo-group) of female mice (n = 45). Vitality was determined by assessing motility using computer-assisted sperm analysis, viability by staining with SYBR-14 and propidium iodide, and fertility by in vitro fertilization, prior to deposition, and at 5, 10, 30, and 60 min after deposition. MAIN RESULTS Motility was significantly decreased in Colo only at 10 and 60 min. Viability of Colo spermatozoa was significant at all assessment times, except at 10 min. Normal fertilization was observed with all Vag spermatozoa, but with Colo, there was arrest of embryo development with spermatozoa collected at 5 and 10 min, and no fertilization with spermatozoa collected at 30 and 60 min. CONCLUSIONS The vitality of spermatozoa is compromised by contact with colonic mucosa which could contribute to infertility in CM after CV, because their ovaries and fallopian tubes are considered to be normal.
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Fernando MA, Creighton SM, Wood D. The long-term management and outcomes of cloacal anomalies. Pediatr Nephrol 2015; 30:759-65. [PMID: 25217327 PMCID: PMC4372671 DOI: 10.1007/s00467-014-2875-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 05/03/2014] [Accepted: 06/02/2014] [Indexed: 12/03/2022]
Abstract
Cloacal anomalies occur when failure of the urogenital septum to separate the cloacal membrane results in the urethra, vagina, rectum and anus opening into a single common channel. The reported incidence is 1:50,000 live births. Short-term paediatric outcomes of surgery are well reported and survival into adulthood is now usual, but long-term outcome data are less comprehensive. Chronic renal failure is reported to occur in 50 % of patients with cloacal anomalies, and 26-72 % (dependant on the length of the common channel) of patients experience urinary incontinence in adult life. Defaecation is normal in 53 % of patients, with some managed by methods other than surgery, including medication, washouts, stoma and antegrade continent enema. Gynaecological anomalies are common and can necessitate reconstructive surgery at adolescence for menstrual obstruction. No data are currently available on sexual function and little on the quality of life. Pregnancy is extremely rare and highly risky. Patient care should be provided by a multidisciplinary team with experience in managing these and other related complex congenital malformations. However, there is an urgent need for a well-planned, collaborative multicentre prospective study on the urological, gastrointestinal and gynaecological aspects of this rare group of complex conditions.
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Affiliation(s)
- M. Ashani Fernando
- Department of Urology, University College London Hospitals, 250 Euston Road, London, NW1 2PG UK
| | - Sarah M. Creighton
- Department of Women’s Health, University College London Hospitals, 250 Euston Road, London, NW1 2PG UK
| | - Dan Wood
- Department of Urology, University College London Hospitals, 250 Euston Road, London, NW1 2PG UK
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Broens PMA, Spoelstra SK, Weijmar Schultz WCM. Dynamic clinical measurements of voluntary vaginal contractions and autonomic vaginal reflexes. J Sex Med 2014; 11:2966-75. [PMID: 25319815 DOI: 10.1111/jsm.12700] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
INTRODUCTION The vaginal canal is an active and responsive canal. It has pressure variations along its length and shows reflex activity. At present, the prevailing idea is that the vaginal canal does not have a sphincter mechanism. It is hypothesized that an active vaginal muscular mechanism exists and might be involved in the pathophysiology of genito-pelvic pain/penetration disorder. AIM The aim of this study was to detect the presence of a canalicular vaginal "sphincter mechanism" by measuring intravaginal pressure at different levels of the vaginal canal during voluntary pelvic floor contractions and during induced reflexive contractions. METHODS Sixteen nulliparous women, without sexual dysfunction and pelvic floor trauma, were included in the study. High-resolution solid-state circumferential catheters were used to measure intravaginal pressures and vaginal contractions at different levels in the vaginal canal. Voluntary intravaginal pressure measurements were performed in the left lateral recumbent position only, while reflexive intravaginal pressure measurements during slow inflation of a vaginal balloon were performed in the left lateral recumbent position and in the sitting position. MAIN OUTCOME MEASURES Intravaginal pressures and vaginal contractions were the main outcome measures. In addition, a general demographic and medical history questionnaire was administered to gain insight into the characteristics of the study population. RESULTS Fifteen out of the sixteen women had deep and superficial vaginal high-pressure zones. In one woman, no superficial high-pressure zone was found. The basal and maximum pressures, as well as the duration of the autonomic reflexive contractions significantly exceeded the pressures and the duration of the voluntary contractions. There were no significant differences between the reflexive measurements obtained in the left lateral recumbent and the sitting position. CONCLUSION The two high-pressure zones found in this study, as a result of voluntary contractions and, even more pronounced, as a result of reflexive contractions on intravaginal stimulation, support the hypothesis that the vaginal canal has an active and passive canalicular sphincter mechanism. Further investigation of this sphincter mechanism is required to identify its role in the sexual response and genito-pelvic pain/penetration disorder.
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Affiliation(s)
- Paul M A Broens
- Department of Surgery, Anorectal Physiology Laboratory, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Shrim A, Podymow T, Breech L, Dahan MH. Term Delivery After In Vitro Fertilization in a Patient With Cloacal Malformation. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2011; 33:952-954. [DOI: 10.1016/s1701-2163(16)35021-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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