Related Experiment Video
Updated: Aug 3, 2026

05:08
A TNBS-Induced Rodent Model to Study the Pathogenic Role of Mechanical Stress in Crohn's Disease
Published on: March 1, 2022
Internal fistulas in Crohn's disease
Diseases of the Colon and Rectum
|August 1, 1985
Summary
For Crohn's disease internal fistulas, immediate surgery is not always necessary. Symptom severity, not just fistula presence, should guide treatment decisions for better patient outcomes.
Area of Science:
- Gastroenterology
- Surgical Gastroenterology
- Inflammatory Bowel Disease
Background:
- Crohn's disease frequently causes internal fistulas, posing treatment dilemmas.
- The optimal timing for surgical intervention in these cases remains debated.
- Previous approaches often advocated immediate surgery for all internal fistulas.
Purpose of the Study:
- To evaluate the outcomes of immediate versus delayed surgical intervention for internal fistulas in Crohn's disease.
- To assess the necessity of immediate surgery, particularly for fistulas involving the bladder.
Main Methods:
- Retrospective review of 59 patients with 83 internal fistulas treated between 1971 and 1982.
- Categorization of fistulas by origin (small intestine, large bowel) and involvement (bladder).
- Comparison of outcomes between patients undergoing immediate surgery, delayed surgery, and non-operative management.
Main Results:
- Of 59 patients, 36 had immediate surgery, 15 required later surgery, and 8 were managed non-operatively.
- Surgical treatment resulted in one postoperative death and 46 patients remaining well.
- Non-operative management for nine fistulas (four involving the bladder) led to good outcomes in seven patients.
Conclusions:
- Internal fistulas in Crohn's disease, including those involving the bladder, do not mandate immediate surgery.
- Treatment policy should be individualized based on clinical presentation and symptom severity.
- Conservative management can be effective for select patients with internal fistulas.
Related Concept Videos
Chronic Bowel Disorders: Introduction
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Inflammatory Bowel Disease II: Crohn's Disease
Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
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:
Here are some common surgical interventions for IBD:
Inflammatory Bowel Disease I: Introduction
Inflammatory bowel disease is a group of chronic disorders marked by recurrent inflammation of the gastrointestinal tract due to an abnormal immune response against gut microflora. This leads to tissue damage. The two main forms are Crohn’s disease and ulcerative colitis.Crohn’s DiseaseCrohn’s disease is a relapsing inflammatory disorder that can affect any part of the GI tract, from the mouth to the anus. It involves all layers of the bowel wall (transmural) and shows “skip lesions” in which...
Inflammatory Bowel Disease III: Crohn's Disease
Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
Inflammatory Bowel Disease IV: Clinical Manifestations
Inflammatory bowel disease (IBD) encompasses two major chronic disorders—ulcerative colitis and Crohn’s disease—each characterized by relapsing episodes of gastrointestinal inflammation. Although they share certain clinical features, their patterns of involvement and manifestations differ in ways that aid diagnosis and guide management.Ulcerative ColitisUlcerative colitis is limited to the colon and rectum and involves continuous inflammation of the mucosal layer. The disease course is marked...

