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Intestinal Obstruction I: Introduction

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,...

Intestinal Obstruction II: Pathophysiology

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...

Pyloric Obstruction

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...

Inflammatory Bowel Disease V: Surgical Management

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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.
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Assessment of the Rectum and Anus

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
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Appendicitis

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Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...

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Related Experiment Video

Updated: Jun 27, 2026

Postoperative Ileus Murine Model

Postoperative Ileus Murine Model

Published on: July 12, 2024

Intestinal pseudoobstruction.

O Rabau¹, H Tulchinsky, M Rabau

¹Proctology Unit, Department of Surgery B, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.

Acta Chirurgica Iugoslavica

|December 17, 2008

Summary

This summary is machine-generated.

Intestinal pseudoobstruction is a rare condition causing bowel obstruction symptoms without a physical blockage. Early diagnosis and understanding its varied presentations are key to effective treatment and avoiding unnecessary surgeries.

More Related Videos

A Mouse Model of Intestinal Partial Obstruction

A Mouse Model of Intestinal Partial Obstruction

Published on: March 5, 2018

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Last Updated: Jun 27, 2026

Postoperative Ileus Murine Model

Postoperative Ileus Murine Model

Published on: July 12, 2024

A Mouse Model of Intestinal Partial Obstruction

A Mouse Model of Intestinal Partial Obstruction

Published on: March 5, 2018

Area of Science:

Gastroenterology
Surgical Pathology

Background:

Intestinal pseudoobstruction is an uncommon condition with diverse causes.
Diagnostic challenges often lead to delayed diagnosis and inappropriate surgical interventions.

Observation:

Presents three case reports of intestinal pseudoobstruction managed within the department.
Reviews existing literature on the condition's characteristics and presentations.

Findings:

Highlights the varied etiologies and clinical spectrum of intestinal pseudoobstruction.
Emphasizes the diagnostic complexities and treatment pitfalls.

Implications:

Increased awareness and understanding of physiological dynamics can improve diagnostic accuracy.
Recognizing the full range of presentations and utilizing appropriate diagnostic tools can lead to more effective patient management and reduced surgical complications.