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Related Concept Videos

Large Intestine01:09

Large Intestine

The large intestine is divided into three main regions: the cecum, colon, and rectum. Extending from the ileocecal valve to the anus, it frames the small intestine on three sides.
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Intestinal Obstruction II: Pathophysiology01:07

Intestinal Obstruction II: Pathophysiology

Intestinal obstruction triggers a series of physiological responses, starting with gas and fluid accumulation in the bowel segment proximal to the obstruction, leading to distension. This distended intestine compresses the diaphragm, hindering lung expansion and potentially leading to reduced respiratory effort, atelectasis, and pneumonia.To overcome the blockage, the gut intensifies contractions, causing colicky abdominal pain, nausea, and vomiting, which reduces fluid and food intake and...
Intestinal Obstruction I: Introduction01:29

Intestinal Obstruction I: Introduction

Intestinal obstruction is a partial or complete blockage of the small or large intestine that disrupts the normal flow of intestinal contents through the lumen. This interruption impairs digestion, absorption, and fluid balance, and may lead to serious complications if not treated promptly.Mechanical ObstructionMechanical obstruction occurs when a physical blockage prevents intestinal contents from passing, arising from within the lumen or the bowel wall, or from external compression.Adhesions,...
Feces Formation and Defecation01:26

Feces Formation and Defecation

After spending 3 to 10 hours in the large intestine, chyme loses a lot of water and becomes feces, the final product of digestion. Feces consist of undigested dietary fiber such as cellulose, mucus, sloughed-off epithelial cells, and microbes. The descending and sigmoid colon stores feces and uses haustral contractions to dry it out but retains enough water to give it a semi-solid texture.
The mass peristalsis then pushes the feces into the rectum, which stretches the rectal walls to activate...

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Related Experiment Video

Updated: Jul 6, 2026

Murine Ileocolic Bowel Resection with Primary Anastomosis
08:49

Murine Ileocolic Bowel Resection with Primary Anastomosis

Published on: October 29, 2014

Imperforate anus: long- and short-term outcome.

Risto J Rintala1, Mikko P Pakarinen

  • 1Hospital for Children and Adolescents, University of Helsinki, Helsinki, Finland. risto.rintala@hus.fi

Seminars in Pediatric Surgery
|April 9, 2008
PubMed
Summary

Anorectal malformations in neonates are treatable, with improved surgical techniques and care leading to better outcomes. Most patients achieve social continence, particularly those with an intact sacrum.

Area of Science:

  • Pediatric Surgery
  • Neonatal Anomalies
  • Gastrointestinal Development

Background:

  • Anorectal malformations are frequent congenital anomalies in newborns.
  • Advances in surgical techniques, patient care, and follow-up have improved survival and functional results.

Purpose of the Study:

  • To highlight the progress in managing anorectal malformations.
  • To emphasize the impact of a new classification system on understanding and comparing outcomes.

Main Methods:

  • Review of advancements in surgical repair and patient management.
  • Application of the Krickenbeck classification for standardized assessment.
  • Evaluation of functional outcomes, focusing on continence.

Main Results:

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Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer

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Murine Ileocolic Bowel Resection with Primary Anastomosis
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Published on: October 29, 2014

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
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  • High survival rates are currently achieved for neonates with anorectal malformations.
  • A simplified classification system enhances understanding and outcome comparison.
  • Successful anatomical repair and bowel care programs lead to social continence in most patients, especially those with intact sacrum.

Conclusions:

  • Modern management strategies significantly improve outcomes for anorectal malformations.
  • Standardized classification and functional assessment are crucial for progress.
  • Achieving social continence is a realistic goal for the majority of affected neonates.