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43 Results Found

  • Article
  • Open Access
3 Citations
2,497 Views
11 Pages

Evaluation of Anorectal Function in Perianal Crohn’s Disease: A Pilot Study

  • Andreia Albuquerque,
  • John Casey,
  • Grace Fairlamb,
  • Lesley A. Houghton and
  • Christian Selinger

16 December 2021

Background: Perianal Crohn’s disease is a disabling condition, with little known about anorectal function in healed/inactive perianal Crohn’s disease; Aim: To evaluate anorectal function in a cohort of patients with treated/healed periana...

  • Article
  • Open Access
2,348 Views
10 Pages

10 December 2024

Background: Anorectal malformations (ARMs) are often associated with tethered cord syndrome (TCS). This study focused on children with ARM to explore the risk factors for the co-occurrence of TCS and to investigate the impact of untethering surgery o...

  • Article
  • Open Access
1,799 Views
11 Pages

8 August 2025

Background: Anorectal malformations (ARMs) are rare congenital anomalies requiring surgical correction and long-term multidisciplinary care. Despite advances in surgical techniques like posterior sagittal anorectoplasty (PSARP), patients often experi...

  • Article
  • Open Access
1,363 Views
7 Pages

16 April 2025

Background: Anorectal Manometry (ARM) plays a crucial role in diagnosing potential motility disorders of anorectum in pediatric gastroenterology. Despite its prevalence, the predictive utility of ARM in guiding therapeutic response remains poorly cha...

  • Article
  • Open Access
20 Citations
3,553 Views
11 Pages

22 January 2021

Complications affecting the gastrointestinal tract often occur in the course of diabetes mellitus (DM). The aim of this study was to evaluate enteropathy symptoms and anorectal function using high-resolution anorectal manometry (HRAM). Fifty DM patie...

  • Article
  • Open Access
3,200 Views
12 Pages

Abnormal visceral perception and motor function are often observed in patients with fecal incontinence, evacuation disorders and irritable bowel syndrome. The international anorectal physiology working group has proposed a standardization for anorect...

  • Article
  • Open Access
5 Citations
4,480 Views
14 Pages

Background: The London Classification for anorectal physiological dysfunction specifically proposes rectoanal areflexia (RA), which means the absence of a rectoanal inhibitory reflex (RAIR) based on a manometric diagnosis. Although RA is not observed...

  • Review
  • Open Access
4 Citations
2,400 Views
19 Pages

Is Collaborative Care the Future of Medicine? Lessons Learned from the Care of Children with Colorectal Conditions

  • Julie M. Choueiki,
  • Stephen Sales,
  • Susan Callicott,
  • David Ashman,
  • Katherine Worst,
  • Andrea Badillo,
  • Briony K. Varda,
  • Allison Mayhew,
  • Thomas O. Xu and
  • Marc A. Levitt

The treatment of patients with colorectal disorders requires care from a wide variety of medical and surgical specialties over the course of their lifetime. This is ideally handled by a collaborative center which facilitates the assessment and develo...

  • Review
  • Open Access
11 Citations
4,441 Views
13 Pages

Biomechatronics (bionics) is an applied science that creates interdisciplinary bonds between biology and engineering. The lower gastrointestinal (GI) tract is difficult to study but has gained interest in recent decades from a bionics point of view....

  • Systematic Review
  • Open Access
5 Citations
5,569 Views
61 Pages

Post-Operative Anorectal Manometry in Children following Anorectal Malformation Repair: A Systematic Review

  • Hannah M. E. Evans-Barns,
  • Melissa Y. Tien,
  • Misel Trajanovska,
  • Mark Safe,
  • John M. Hutson,
  • Phil G. Dinning and
  • Sebastian K. King

28 March 2023

Despite surgical correction, children with anorectal malformations may experience long-term bowel dysfunction, including fecal incontinence and/or disorders of evacuation. Anorectal manometry is the most widely used test of anorectal function. Althou...

  • Review
  • Open Access
8,457 Views
12 Pages

Home Biofeedback Training for Pelvic Floor Disorders: Is There Hope for Hopeless Patients?

  • Marek Vojtko,
  • Peter Banovcin,
  • Martin Duricek,
  • Jakub Hoferica and
  • Peter Liptak

The most common anorectal disorders are fecal incontinence, functional anorectal pain, and functional defecation disorders. They are often presented by overlapping symptoms with various degrees of severity. Therefore, a personalized approach to the p...

  • Article
  • Open Access
1 Citations
2,011 Views
10 Pages

4 December 2023

Anorectal manometry is one of the most frequently performed gastrointestinal motility studies in children. It is an important study in diagnosing Hirschsprung disease (HD). These procedures can be uncomfortable, painful and emotionally distressing. N...

  • Article
  • Open Access
25 Citations
6,442 Views
15 Pages

Murine Anorectic Response to Deoxynivalenol (Vomitoxin) Is Sex-Dependent

  • Erica S. Clark,
  • Brenna M. Flannery and
  • James J. Pestka

29 July 2015

Deoxynivalenol (DON, vomitoxin), a common trichothecene mycotoxin found in cereal foods, dysregulates immune function and maintenance of energy balance. The purpose of this study was to determine if sex differences are similarly evident in DON’s anor...

  • Article
  • Open Access
9 Citations
3,407 Views
13 Pages

Advanced Management Protocol of Transanal Irrigation in Order to Improve the Outcome of Pediatric Patients with Fecal Incontinence

  • Anna Maria Caruso,
  • Mario Pietro Marcello Milazzo,
  • Denisia Bommarito,
  • Vincenza Girgenti,
  • Glenda Amato,
  • Giuseppe Paviglianiti,
  • Alessandra Casuccio,
  • Pieralba Catalano,
  • Marcello Cimador and
  • Maria Rita Di Pace

11 December 2021

Background: Transanal irrigation (TAI) is employed for children with fecal incontinence, but it can present several problems which require a study of their outcomes among different pathologies and without a tailored work up. The aim of our study was...

  • Article
  • Open Access
1 Citations
1,271 Views
10 Pages

Sarcopenia in Women with Anorectal Dysfunctions—A Female Sarcopelvic Study

  • Ana Margarida Duarte da Silva Vieira,
  • Sandra Pais,
  • Viviana Martins,
  • Barbara Castelo and
  • Miguel Mascarenhas Saraiva

29 November 2024

Background: Anorectal dysfunctions (ARDs) include fecal incontinence (FI) and functional defecation disorders (FDDs). The pelvic floor muscles play a central role in the physiology of continence and defecation. We aimed to investigate the prevalence...

  • Article
  • Open Access
1 Citations
2,889 Views
15 Pages

Evaluation of Anal Sphincter with High Resolution Anorectal Manometry and 3D Reconstruction in Patients with Anorectal Malformation

  • Anna Maria Caruso,
  • Denisia Bommarito,
  • Vincenza Girgenti,
  • Glenda Amato,
  • Ugo Calabrese,
  • Adele Figuccia,
  • Fabio Baldanza,
  • Francesco Grasso,
  • Emanuela Giglione and
  • Maria Rita Di Pace
  • + 2 authors

9 June 2023

Background: Patients with anorectal malformation (ARM) need long-term follow-up, in order to evaluate fecal continence; the main predictors of longer-term success are the type of ARM, associated anomalies and sacral integrity. Three-Dimensional High...

  • Article
  • Open Access
4 Citations
3,111 Views
11 Pages

Study on 3D High-Resolution Anorectal Manometry Interrater Agreement in the Evaluation of Dyssynergic Defecation Disorders

  • Justin Y. van Oostendorp,
  • Pieter van Hagen,
  • Grietje J. H. van der Mijnsbrugge and
  • Ingrid J. M. Han-Geurts

11 August 2023

Anorectal manometry measurements exhibit significant interrater variability. Newer techniques like 3D high-resolution anorectal manometry (3D-HRAM) have the potential to enhance diagnostic accuracy and our understanding of defecation disorders. Howev...

  • Review
  • Open Access
17 Citations
9,118 Views
17 Pages

State of the Art Bowel Management for Pediatric Colorectal Problems: Functional Constipation

  • Elizaveta Bokova,
  • Wendy Jo Svetanoff,
  • John M. Rosen,
  • Marc A. Levitt and
  • Rebecca M. Rentea

19 June 2023

Background: Functional constipation (FC) affects up to 32% of the pediatric population, and some of these patients are referred to pediatric surgery units to manage their constipation and/or fecal incontinence. The aim of the current paper is to repo...

  • Review
  • Open Access
1 Citations
4,334 Views
14 Pages

12 March 2025

Rectal cancer surgery has undergone transformative advancements over the past few decades, evolving from radical, high-morbidity procedures to more refined techniques focused on both oncological outcomes and the preservation of anorectal function. Th...

  • Review
  • Open Access
15 Citations
5,981 Views
13 Pages

State of the Art Bowel Management for Pediatric Colorectal Problems: Anorectal Malformations

  • Elizaveta Bokova,
  • Wendy Jo Svetanoff,
  • Joseph J. Lopez,
  • Marc A. Levitt and
  • Rebecca M. Rentea

Up to 79% of patients with anorectal malformations (ARMs) experience constipation and/or soiling after a primary posterior sagittal anoplasty (PSARP) and are referred to a bowel management program. We aim to report the recent updates in evaluating an...

  • Article
  • Open Access
5 Citations
8,862 Views
11 Pages

Percutaneous Anorectoplasty (PARP)—An Adaptable, Minimal-Invasive Technique for Anorectal Malformation Repair

  • Julia Küppers,
  • Viviane van Eckert,
  • Nadine R. Muensterer,
  • Anne-Sophie Holler,
  • Stephan Rohleder,
  • Takafumi Kawano,
  • Jan Gödeke and
  • Oliver J. Muensterer

21 April 2022

Background: Anorectal malformations comprise a broad spectrum of disease. We developed a percutaneous anorectoplasty (PARP) technique as a minimal-invasive option for repair of amenable types of lesions. Methods: Patients who underwent PARP at five i...

  • Article
  • Open Access
10 Citations
3,963 Views
10 Pages

Changes in Serum Oxytocin Levels under Physiological and Supraphysiological Gonadal Steroid Hormone Conditions in Women of Reproductive Age: A Preliminary Study

  • Ayaka Tachibana,
  • Yuri Yamamoto,
  • Hiroki Noguchi,
  • Asuka Takeda,
  • Kou Tamura,
  • Hidenori Aoki,
  • Saki Minato,
  • Maimi Uchishiba,
  • Shota Yamamoto and
  • Takeshi Iwasa
  • + 4 authors

16 December 2022

Oxytocin (OT) affects many behavioral, psychological, and physiological functions, including appetite and body weight regulation. Central and peripheral OT levels are markedly affected by gonadal steroids, especially estrogen, and the anorectic effec...

  • Article
  • Open Access
5 Citations
2,774 Views
13 Pages

Genetic Disruption of Cilia-Associated Signaling Pathways in Patients with VACTERL Association

  • Jessica Ritter,
  • Kristina Lisec,
  • Marina Klinner,
  • Martina Heinrich,
  • Dietrich von Schweinitz,
  • Roland Kappler and
  • Jochen Hubertus

VACTERL association is a rare malformation complex consisting of vertebral defects, anorectal malformation, cardiovascular defects, tracheoesophageal fistulae with esophageal atresia, renal malformation, and limb anomalies. According to current knowl...

  • Article
  • Open Access
31 Citations
7,862 Views
20 Pages

Differential Signaling Profiles of MC4R Mutations with Three Different Ligands

  • Sarah Paisdzior,
  • Ioanna Maria Dimitriou,
  • Paul Curtis Schöpe,
  • Paolo Annibale,
  • Patrick Scheerer,
  • Heiko Krude,
  • Martin J. Lohse,
  • Heike Biebermann and
  • Peter Kühnen

12 February 2020

The melanocortin 4 receptor (MC4R) is a key player in hypothalamic weight regulation and energy expenditure as part of the leptin–melanocortin pathway. Mutations in this G protein coupled receptor (GPCR) are the most common cause for monogeneti...

  • Article
  • Open Access
10 Citations
4,905 Views
11 Pages

Multimodal Management of Fecal Incontinence Focused on Sphincteroplasty: Long-Term Outcomes from a Single Center Case Series

  • Carlos Cerdán Santacruz,
  • Débora M. Cerdán Santacruz,
  • Lucía Milla Collado,
  • Antonio Ruiz de León and
  • Javier Cerdán Miguel

28 June 2022

The management of patients with fecal incontinence and an external anal sphincter (EAS) defect remains controversial. A retrospective series of overlapping anal sphincteroplasties performed between 1985–2013 from a single center, supplemented b...

  • Article
  • Open Access
35 Citations
5,703 Views
10 Pages

Prevalence and Clinical Characteristics of Dyssynergic Defecation and Slow Transit Constipation in Patients with Chronic Constipation

  • Samuel Tanner,
  • Ahson Chaudhry,
  • Navneet Goraya,
  • Rohan Badlani,
  • Asad Jehangir,
  • Dariush Shahsavari,
  • Zubair Malik and
  • Henry P. Parkman

Patients with chronic constipation who do not respond to initial treatments often need further evaluation for dyssynergic defecation (DD) and slow transit constipation (STC). The aims of this study are to characterize the prevalence of DD and STC in...

  • Review
  • Open Access
10 Citations
11,585 Views
13 Pages

Fetal and Newborn Management of Cloacal Malformations

  • Shimon E. Jacobs,
  • Laura Tiusaba,
  • Tamador Al-Shamaileh,
  • Elizaveta Bokova,
  • Teresa L. Russell,
  • Christina P. Ho,
  • Briony K. Varda,
  • Hans G. Pohl,
  • Allison C. Mayhew and
  • Marc A. Levitt
  • + 3 authors

Cloaca is a rare, complex malformation encompassing the genitourinary and anorectal tract of the female in which these tracts fail to separate in utero, resulting in a single perineal orifice. Prenatal sonography detects a few cases with findings suc...

  • Article
  • Open Access
18 Citations
4,440 Views
23 Pages

Leptin, Acting at Central Level, Increases FGF21 Expression in White Adipose Tissue via PPARβ/δ

  • Lorena Mazuecos,
  • Cristina Pintado,
  • Blanca Rubio,
  • Eduardo Guisantes-Batán,
  • Antonio Andrés and
  • Nilda Gallardo

The altered function of adipose tissue can result in obesity, insulin resistance, and its metabolic complications. Leptin, acting on the central nervous system, modifies the composition and function of adipose tissue. To date, the molecular changes t...

  • Article
  • Open Access
1 Citations
2,121 Views
16 Pages

Functional Assessment of Anal Sphincter with Transperineal Ultrasound and Its Relationship to Anal Continence

  • Yaman Degirmenci,
  • Joscha Steetskamp,
  • Roxana Schwab,
  • Annette Hasenburg,
  • Markus Schepers,
  • Ina Shehaj and
  • Christine Skala

21 November 2024

Background/Objectives: Anal incontinence is linked to pelvic floor dysfunction. Diagnosis involves assessing both the function and structure of the anorectal unit. Although transperineal ultrasound has gained attention as a less invasive option, its...

  • Article
  • Open Access
2 Citations
3,884 Views
13 Pages

Role of Autologous Fat Grafting in the Conservative Treatment of Fecal Incontinence in Children

  • Valentina Pinto,
  • Marco Pignatti,
  • Giovanni Parente,
  • Neil Di Salvo,
  • Luca Contu and
  • Mario Lima

5 February 2023

Treatment of organic fecal incontinence in children, typical of anorectal malformations, is most often conservative; however, when necessary, it can be surgical. Autologous fat grafting, or lipofilling, can be used to improve fecal incontinence. We p...

  • Review
  • Open Access
14 Citations
5,066 Views
14 Pages

Pediatric Bowel Management Options and Organizational Aspects

  • Elizaveta Bokova,
  • Wendy Jo Svetanoff,
  • Marc Aaron Levitt and
  • Rebecca Maria Rentea

28 March 2023

A bowel management program (BMP) to treat fecal incontinence and severe constipation is utilized for patients with anorectal malformations, Hirschsprung disease, spinal anomalies, and functional constipation, decreasing the rate of emergency departme...

  • Article
  • Open Access
8 Citations
4,755 Views
10 Pages

Anorectal Malformations: Ideal Surgery Timing to Reduce Incontinence and Optimize QoL

  • Gloria Pelizzo,
  • Carlotta Paola Maria Canonica,
  • Francesca Destro,
  • Milena Meroni,
  • Dario Rizzo,
  • Lorena Canazza,
  • Giorgio Giuseppe Orlando Selvaggio,
  • Eleonora Durante,
  • Gianvincenzo Zuccotti and
  • Valeria Calcaterra

18 February 2023

Anorectal malformations (ARMs) are rare and involve a wide spectrum of malformations. Prenatal diagnosis is often incomplete, and the diagnostic pathway is started during the newborn period to identify the type of malformation and the correct treatme...

  • Article
  • Open Access
8 Citations
4,067 Views
15 Pages

Dexfenfluramine and Pergolide Cause Heart Valve Disease via Valve Metabolic Reprogramming and Ongoing Matrix Remodeling

  • Cécile Oury,
  • Patrick Maréchal,
  • Nathalie Donis,
  • Alexia Hulin,
  • Alexandre Hego,
  • Julien Tridetti,
  • Mai-Linh Nguyen,
  • Raluca Dulgheru,
  • Marianne Fillet and
  • Patrizio Lancellotti
  • + 1 author

Several clinical reports indicate that the use of amphetaminic anorectic drugs or ergot derivatives could cause valvular heart disease (VHD). We sought to investigate whether valvular lesions develop in response to long-term oral administration of th...

  • Article
  • Open Access
19 Citations
5,169 Views
12 Pages

4 June 2021

A significant factor in improving the performance of dairy cows is their physiological ability to correct a negative energy balance (NEB). This study, using Simmental (SIM) and Holstein-Friesian (HF) cows, aimed to assess changes in NEB (non-esterifi...

  • Article
  • Open Access
2 Citations
8,874 Views
8 Pages

Can Infant Dyschezia Be a Suspect of Rectosigmoid Redundancy?

  • Carmine Noviello,
  • Stefano Nobile,
  • Mercedes Romano,
  • Letizia Trotta and
  • Alfonso Papparella

21 July 2022

Infant dyschezia is a functional gastrointestinal disorder that occurs in children less than nine months of age. This disorder causes much anxiety among parents who consult different physicians when suspecting major intestinal problems. The aim of th...

  • Article
  • Open Access
1,055 Views
17 Pages

5 April 2025

Interstitial cells of Cajal (ICCs) play a key role in gastrointestinal smooth muscle contractions, but their relationship with anal canal function in advanced haemorrhoidal disease (HD) remains poorly understood. This study uses deep neural network (...

  • Article
  • Open Access
2 Citations
3,561 Views
14 Pages

Design and Material Characterization of an Inflatable Vaginal Dilator

  • Po-Han Chen,
  • Yu Ming Li,
  • Karcher Morris,
  • Milan T. Makale,
  • Jyoti Mayadev and
  • Frank E. Talke

24 February 2024

There are more than 13,000 new cases of cervical cancer each year in the United States and approximately 245,000 survivors. External beam radiation and brachytherapy are the front-line treatment modalities, and 60% of patients develop vaginal damage...

  • Review
  • Open Access
20 Citations
14,552 Views
19 Pages

Magnetic Resonance Imaging of the Gastrointestinal Tract: Current Role, Recent Advancements and Future Prospectives

  • Francesca Maccioni,
  • Ludovica Busato,
  • Alessandra Valenti,
  • Sara Cardaccio,
  • Alessandro Longhi and
  • Carlo Catalano

This review focuses on the role of magnetic resonance imaging (MRI) in the evaluation of the gastrointestinal tract (GI MRI), analyzing the major technical advances achieved in this field, such as diffusion-weighted imaging, molecular imaging, motili...

  • Article
  • Open Access
3 Citations
1,526 Views
23 Pages

25 February 2025

Leptin is an adipokine known as a regulator of feeding and metabolism in mammals. Previous studies on fish have revealed its role in food intake regulation in limited teleosts. However, its specific function in Siberian sturgeon, an ancient Chondrost...

  • Article
  • Open Access
2 Citations
2,093 Views
14 Pages

“Take It One Dilation at a Time”: Caregiver Perspectives of Postoperative Anal Dilations in Pediatric Patients with Colorectal Conditions

  • Lea A. Wehrli,
  • Merlin Ariefdjohan,
  • Jill Ketzer,
  • Kristina Matkins,
  • Luis De la Torre,
  • Andrea Bischoff and
  • Laura Judd-Glossy

30 April 2024

Background: Postoperative anal dilations (PAD) are the standard of care for patients after a posterior sagittal anorectoplasty (PSARP) for anorectal malformation (ARM) or a transanal pull-through (TP) procedure for Hirschsprung disease (HD). This stu...

  • Article
  • Open Access
9 Citations
6,169 Views
7 Pages

Preliminary Study on the Echo-Assisted Intersphincteric Autologous Microfragmented Adipose Tissue Injection to Control Fecal Incontinence in Children Operated for Anorectal Malformations

  • Giovanni Parente,
  • Valentina Pinto,
  • Neil Di Salvo,
  • Simone D’Antonio,
  • Michele Libri,
  • Tommaso Gargano,
  • Vincenzo Davide Catania,
  • Giovanni Ruggeri and
  • Mario Lima

13 October 2020

Aim of the study: To assess the efficacy of a novel technique (echo-assisted intersphincteric autologous microfragmented adipose tissue injection, also called “anal-lipofilling”) in the management of non-responsive fecal incontinence in c...

  • Article
  • Open Access
1,358 Views
10 Pages

Background: Distinguishing between the anatomical variant of an anterior anus and mild forms of imperforate anus with rectoperineal fistula often requires inspection, calibration, and, in uncertain cases, electrical stimulation (ES) under general ane...

  • Article
  • Open Access
24 Citations
4,984 Views
15 Pages

Vaginal and Anal Microbiome during Chlamydia trachomatis Infections

  • Stefano Raimondi,
  • Francesco Candeliere,
  • Alberto Amaretti,
  • Claudio Foschi,
  • Sara Morselli,
  • Valeria Gaspari,
  • Maddalena Rossi and
  • Antonella Marangoni

19 October 2021

Background.Chlamydia trachomatis (CT) is the agent of the most common bacterial sexually transmitted infection worldwide, with a significant impact on women’s health. Despite the increasing number of studies about the vaginal microbiome in women with...