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Related Concept Videos

Inflammatory Bowel Disease II: Crohn's Disease01:30

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 I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory Bowel Disease III: Crohn's Disease01:25

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 Manifestations01:20

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...
Inflammatory Bowel Disease II: Ulcerative Colitis01:20

Inflammatory Bowel Disease II: Ulcerative Colitis

Ulcerative colitis is a chronic inflammatory disorder of the colon characterized by continuous mucosal inflammation that typically begins in the rectum and extends proximally in a uniform pattern. Its pathogenesis involves a complex interplay of genetic predisposition, immune dysregulation, and environmental influences. These factors converge to impair the colon’s epithelial defenses and promote an exaggerated inflammatory response against luminal contents.Breakdown of the Mucosal BarrierA...
Inflammatory Bowel Disease I: Introduction01:26

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...

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Chronic Salmonella Infection Induced Intestinal Fibrosis
08:40

Chronic Salmonella Infection Induced Intestinal Fibrosis

Published on: September 22, 2019

Mortality from inflammatory bowel diseases.

Christian P Selinger1, Rupert W Leong

  • 1Gastroenterology and Liver Services, Sydney Local Health Service, Concord Repatriation General Hospital, Sydney, New South Wales, Australia.

Inflammatory Bowel Diseases
|January 26, 2012
PubMed
Summary
This summary is machine-generated.

Inflammatory bowel diseases like Crohn's disease (CD) increase mortality risk, particularly in younger patients requiring surgery. Ulcerative colitis (UC) generally shows mortality rates similar to the general population.

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Area of Science:

  • Gastroenterology
  • Epidemiology
  • Public Health

Background:

  • Ulcerative colitis (UC) and Crohn's disease (CD) are chronic inflammatory bowel diseases (IBD).
  • These conditions can lead to serious complications, including colorectal cancer and sepsis, potentially impacting patient survival.
  • Assessing mortality risk in IBD patients compared to the general population is crucial for understanding disease burden.

Purpose of the Study:

  • To review and synthesize evidence from mortality studies on ulcerative colitis and Crohn's disease.
  • To determine if standardized mortality ratios are elevated in patients with CD and UC.
  • To identify factors influencing mortality in IBD patients.

Main Methods:

  • Systematic review of cohort and population-based mortality studies.
  • Analysis of standardized mortality ratios (SMRs) in CD and UC patients.
  • Examination of data regarding age at diagnosis, surgical history, and geographical variations.

Main Results:

  • The majority of studies and meta-analyses indicate an approximately 1.5-fold increased SMR for Crohn's disease, especially in younger patients and those with extensive surgical histories.
  • Most studies found that mortality rates for ulcerative colitis are comparable to the general population.
  • No clear temporal trends in survival improvement were observed for either CD or UC; data outside Europe and North America are limited.

Conclusions:

  • Crohn's disease is associated with a significantly increased mortality risk, influenced by early diagnosis and surgical interventions.
  • Ulcerative colitis does not appear to confer a substantial mortality disadvantage compared to the general population, though proctocolectomy carries its own risks.
  • Further research is needed to understand geographical influences on IBD mortality and long-term survival trends.