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Related Concept Videos

Cellular Injury IV: Necrosis01:16

Cellular Injury IV: Necrosis

Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
Necrosis01:16

Necrosis

Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
Endocarditis I: Introduction01:25

Endocarditis I: Introduction

Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
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Tetanus

Tetanus is a life-threatening neurological disorder characterized by persistent muscle contractions and spastic paralysis. It is caused by Clostridium tetani, a motile, Gram-positive, rod-shaped, obligate anaerobe. These bacteria produce terminal endospores, giving them a distinctive “lollipop” or “tennis-racket” appearance. They thrive in anaerobic environments, such as those found in deep puncture wounds.Once introduced into the body, the spores germinate into vegetative cells. These cells...

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Related Experiment Videos

Necrotizing soft tissue infections.

Gina M Howell1, Matthew R Rosengart

  • 1Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213-2582, USA.

Surgical Infections
|July 20, 2011
PubMed
Summary
This summary is machine-generated.

Necrotizing soft tissue infections (NSTI) require prompt diagnosis and aggressive surgical debridement with antibiotics. Understanding NSTI microbiology is key for targeted treatments and improved patient outcomes.

Related Experiment Videos

Area of Science:

  • Infectious Diseases
  • Surgical Pathology
  • Critical Care Medicine

Background:

  • Necrotizing soft tissue infections (NSTI) are rare but severe conditions associated with high morbidity and mortality.
  • Accurate and timely diagnosis of NSTI presents a significant clinical challenge.

Purpose of the Study:

  • To review the current understanding and management strategies for Necrotizing Soft Tissue Infections (NSTI).
  • To emphasize the importance of early diagnosis and appropriate therapeutic interventions for NSTI.

Main Methods:

  • Comprehensive review of English-language literature pertinent to Necrotizing Soft Tissue Infections.
  • Analysis of established and emerging treatment modalities for NSTI.

Main Results:

  • The cornerstone of NSTI management includes early, aggressive surgical debridement and empiric broad-spectrum antibiotic therapy.
  • Investigational therapies like hyperbaric oxygen and intravenous immunoglobulin have been reported but require further definition of their roles.

Conclusions:

  • Early diagnosis of NSTI is critical for initiating life-saving treatments, despite diagnostic challenges.
  • Understanding NSTI microbiology is vital for guiding antibiotic selection and developing targeted interventions for disease pathogenesis.