Results 31 to 40 of about 1,606 (154)

Physiology of lower gastrointestinal tract. [PDF]

Aliment Pharmacol Ther
The main functions of the colon include: water reabsorption, harboring commensal microbial species, and waste processing, transport and storage. Once at the rectum, the process of defecation begins which can be sub‐divided into four phases: basal, pre‐expulsive, expulsive and end phase.
Santucci NR, Velez A.
europepmc   +2 more sources

Effect of posture on anorectal manometric measurements in female patients with fecal incontinence and rectoanal intussusception

BMC Gastroenterology, 2022
Purpose This study aimed to investigate the influence of erect position on anorectal manometry in patients with rectoanal intussusception (RAI). Methods This was a single center prospective observational study.
Akira Tsunoda, Tomoko Takahashi, Ikuko Osawa   +2 more
doaj   +1 more source

MR defecography for obstructed defecation syndrome

Indian Journal of Radiology and Imaging, 2015
Patients with obstructed defecation syndrome (ODS) form an important subset of patients with chronic constipation. Evaluation and treatment of these patients has traditionally been difficult.
Ravikumar B Thapar, Roysuneel V Patankar, Ritesh D Kamat, Radhika R Thapar, Vipul Chemburkar   +4 more
doaj   +1 more source

Summary of Evidence for Perioperative Management of Day Surgery Patients Undergoing Anorectal Surgery

Nursing Open, Volume 13, Issue 1, January 2026.
ABSTRACT Aim This scoping review aimed to map and synthesise the available evidence on the perioperative management of patients undergoing anorectal surgery in a day‐surgery setting. This study creates the first unified, evidence‐based framework for day‐surgery anorectal care.
Yahui Gao, Mindan Wang, Yingying Jiang
wiley   +1 more source

Stereoscopic Quantitative Analysis of Enteric Nervous System in Patients With Slow Transit Constipation

Neurogastroenterology &Motility, Volume 37, Issue 12, December 2025.
This study used a stereoscopic imaging method that combines tissue clearance, immunohistochemistry, and confocal imaging techniques to construct a quantifiable three‐dimensional view of the enteric nervous system, accurately evaluating changes in the enteric nervous system of patients with slow transit constipation.
Gaoyuan Tian, Bo Wang, Bin Kong, Zefeng Yuan, Yang Yang, Zhuo Wang, Dong Liu, Shipeng Zhao   +7 more
wiley   +1 more source

Laparoscopic ventral rectopexy with sacrocolpopexy for coexisting pelvic organ prolapse and external rectal prolapse

Journal of the Anus, Rectum and Colon, 2017
Objectives: Pelvic organ prolapse (POP) POP is defined as the protrusion of pelvic organs from the vaginal canal. POP often coexists with internal rectal prolapse or external rectal prolapse (ERP).
Yoshiyuki Kiyasu, Akira Tsunoda, Tomoko Takahashi, Masayoshi Nomura   +3 more
doaj   +1 more source

Enterocele causing chronic constipation in a young male

Journal of Pediatric Surgery Case Reports, 2018
A 14-year old boy with a life-long history of defecation problems was diagnosed to have an enterocele with dynamic defecography. This is a rare diagnosis in male adolescent patients. The patient was successfully treated laparoscopically.
S. Schober, T. Lahdes-Vasama, T. Iber, R. Rintala   +3 more
doaj   +1 more source

Absent or impaired rectoanal inhibitory reflex as a diagnostic factor for high-grade (grade III–V) rectal prolapse: a retrospective study

BMC Gastroenterology, 2021
Background Clinically diagnosing high-grade (III–V) rectal prolapse might be difficult, and the prolapse can often be overlooked. Even though defecography is the significant diagnostic tool for rectal prolapse, it is noticed that rectoanal inhibitory ...
Byung-Soo Park, Sung Hwan Cho, Gyung Mo Son, Hyun Sung Kim, Yong-Hoon Cho, Dae Gon Ryu, Su Jin Kim, Su Bum Park, Cheol Woong Choi, Hyung Wook Kim, Tae Un Kim, Dong Soo Suh, Myunghee Yoon, Hong Jae Jo   +13 more
doaj   +1 more source

Static & dynamic pelvic floor assessment using MR defecography: a radiological prospective observational study with ideal reporting template

The Egyptian Journal of Radiology and Nuclear Medicine
Background Dynamic pelvic floor assessment is essential for diagnosing functional disorders. MR defecography has emerged as a superior imaging technique due to its detailed visualization capabilities during defecation.
Sanket Vinubhai Davra, Anushka Jain, Anurag Kumar   +2 more
doaj   +1 more source

Mesorectal reconstruction with pedicled greater omental transplantation to relieve low anterior resection syndrome following total intersphincteric resection in patients with ultra-low rectal cancer

BMC Surgery, 2023
Background Total intersphincteric resection (ISR) is the ultimate anus-preserving surgery for patients with ultra-low rectal cancer (ULRC), which can result in various degrees of anorectal dysfunction.
Jiankun Liao, Haiquan Qin, Zheng Wang, Linghou Meng, Wentao Wang, Jungang Liu, Xianwei Mo   +6 more
doaj   +1 more source