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Related Concept Videos

Peptic Ulcer Disease II: Pathophysiology01:28

Peptic Ulcer Disease II: Pathophysiology

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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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Absolute and Local Extreme Values01:22

Absolute and Local Extreme Values

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The highest and lowest values of a function, relative to a reference axis, are known as extreme values. These include absolute maximum and absolute minimum values, which represent the highest and lowest points the function reaches across its entire domain. Within a restricted portion of the function, the highest and lowest values are referred to as local maximum and local minimum values, respectively.Periodic functions, such as sine and cosine, show extreme values at infinitely many points due...
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Peptic Ulcer Disease I: Introduction01:30

Peptic Ulcer Disease I: Introduction

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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...
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Peptic Ulcer Disease IV: Management01:26

Peptic Ulcer Disease IV: Management

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Medical treatment strategies for peptic ulcers encompass various methods. The primary goal of treatment is to diminish gastric acidity and strengthen mucosal defense mechanisms.
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current...
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Pathophysiology of Peptic Ulcer Disease: Injurious Factors01:22

Pathophysiology of Peptic Ulcer Disease: Injurious Factors

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Peptic ulcers are sores on the stomach's inner lining and the upper small intestine, which are the result of disruptions in the mucosal layer that houses parietal cells which produce gastric acid, and chief cells which secrete pepsinogen.
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
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Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

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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...
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Mouse Model of Pressure Ulcers After Spinal Cord Injury
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Bilateral lower extremity ulcerations, less is more.

Kathryn Mooneyham Potter1, Garrett Ruth2, Nila S Radhakrishnan3

  • 1Division of Dermatology University of Florida Gainesville Florida.

Clinical Case Reports
|March 9, 2019
PubMed
Summary
This summary is machine-generated.

Diagnosing lower extremity ulcers requires careful consideration, as debridement can worsen conditions like pyoderma gangrenosum. Biologic agents offer a promising treatment option for this specific ulcerative condition.

Keywords:
biologicslowered extremity ulcerspathergypyoderma gangrenosum

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Area of Science:

  • Dermatology
  • Wound Care

Background:

  • Lower extremity ulcers present a diagnostic challenge.
  • Aggressive debridement can be detrimental in specific ulcerative conditions.

Observation:

  • Pyoderma gangrenosum is a critical differential diagnosis for lower extremity ulcers.
  • Standard debridement protocols may exacerbate pyoderma gangrenosum.

Findings:

  • The differential diagnosis for lower extremity ulcers must be comprehensive.
  • Biologic agents demonstrate potential therapeutic value in managing pyoderma gangrenosum.

Implications:

  • Accurate diagnosis is crucial to avoid iatrogenic harm.
  • Biologic therapies represent a targeted approach for refractory pyoderma gangrenosum.
  • This underscores the need for specialized wound care strategies.