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Related Concept Videos

Peptic Ulcer Disease I: Introduction01:30

Peptic Ulcer Disease I: Introduction

Peptic Ulcer Disease (PUD) is characterized by mucosal excavation in the esophagus, stomach, pylorus, or duodenum. It can manifest as acute or chronic based on the extent and duration of mucosal involvement.
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
Peptic Ulcer Disease I: Introduction01:25

Peptic Ulcer Disease I: Introduction

Peptic ulcer disease (PUD) involves breaks in the gastrointestinal tract's mucosal lining, primarily in the stomach and duodenum, with less frequent occurrences in the lower esophagus or near the pylorus.Ulcers can be acute or chronic. Acute ulcers are short-lived with minimal inflammation and heal quickly after the irritant is removed. Chronic ulcers persist, may recur, and often cause scarring due to ongoing tissue damage. Superficial erosions affect only the mucosal layer and are called...
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: 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...
Peptic Ulcer Disease II: Pathophysiology01:24

Peptic Ulcer Disease II: Pathophysiology

Peptic ulcer disease develops when protective mechanisms of the gastrointestinal mucosa are overwhelmed by harmful factors, leading to localized erosions in the stomach or proximal duodenum. The main causes are Helicobacter pylori infection and chronic use of nonsteroidal anti-inflammatory drugs (NSAIDs).Helicobacter pylori–Induced InjuryBacterial Adaptation and Colonization:H. pylori is a spiral, Gram-negative bacterium adapted to the acidic stomach. and transmitted through oral-oral or...
Peptic Ulcer Disease II: Pathophysiology01:28

Peptic Ulcer Disease II: Pathophysiology

Peptic Ulcer Disease (PUD) is characterized by the development of ulcers in the stomach or duodenal mucosa. Its pathophysiology is complex, involving a balance between damaging and protective elements.
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.

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Related Experiment Videos

Idiopathic ulcerative laryngitis.

C Blake Simpson1, Lucian Sulica, Gregory N Postma

  • 1Department of Otolaryngology-Head and Neck Surgery, The University of Texas Health Science Center, San Antonio, Texas 78229, USA. simpsonc@uthscsa.edu

The Laryngoscope
|April 27, 2011
PubMed
Summary
This summary is machine-generated.

Idiopathic ulcerative laryngitis (IUL) is a rare vocal fold condition. While it resolves in about 3.3 months, most patients experience persistent voice issues despite treatment.

Related Experiment Videos

Area of Science:

  • Otolaryngology
  • Laryngology
  • Vocal Fold Pathology

Background:

  • Idiopathic ulcerative laryngitis (IUL) is a distinct clinical entity.
  • It follows prolonged upper respiratory infections with cough.
  • Characterized by bilateral vocal fold ulcerations and slow healing.

Purpose of the Study:

  • To characterize the typical patient presentation of IUL.
  • To define clinical findings associated with IUL.
  • To establish the prognosis of IUL.

Main Methods:

  • Multi-institutional retrospective review.
  • Analysis of patient charts and videostroboscopic exams from eight institutions.
  • Inclusion criteria for 15 confirmed IUL cases.

Main Results:

  • Mean patient age was 49 years, with 93% females; all were non-smokers.
  • No acute resolution with medical interventions; average healing time was 3.3 months.
  • Voice improved post-resolution, but 60% had persistent vibratory abnormalities.

Conclusions:

  • First multi-institutional study defining IUL disease course and diagnostic criteria.
  • IUL is rare, with unknown etiology and no definitive treatments.
  • Further research needed for etiology, risk factors, and optimal management.