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Culturing and Maintaining Clostridium difficile in an Anaerobic Environment
Published on: September 14, 2013
Nightmare in the ward: difficult Clostridioides infection
1UOC Internal Medicine, UOS Clinical Immunology, San Giovanni-Addolorata Hospital, Rome, Italy.
Abstract:
Clostridioides difficile is a Gram-positive, anaerobic, spore-forming bacillus. It is isolated in 80% of the stools of children and infants and in 3% of healthy adults. It causes gastrointestinal tract infections and affects patients who make prolonged use of antibiotics. It causes C. difficile colitis with symptoms ranging from diarrhoea to pseudomembranous colitis to toxic megacolon. The main virulence factors of C. difficile are toxin A, toxin B, and binary toxin. It is one of the most common nosocomial infections but in recent years, however, many infections have also been found at the community level. They are associated not only with a high risk of mortality but also with a prolongation of hospital stay. One of the critical aspects of C. difficile infections is also represented by the high frequency of relapses. Consequently, the economic impact is significant. Specific situations constitute risk factors for infection, such as exposure to antibiotic therapy in the previous months, in particular fluoroquinolones, third-generation cephalosporins, clindamycin, repeated hospitalizations in healthcare facilities, including long-term care, as well as the patient's clinical conditions such as comorbidities, age >65, chemotherapy and immunosuppressive treatments, recent surgery of any type, and pump inhibitor therapy. Treatment protocols will be described in the paper.
Insights
Clostridioides difficile (C. diff) infections are common, especially after antibiotic use, causing severe gastrointestinal issues. High relapse rates and significant economic impact underscore the need for effective treatment protocols.
Area of Science:
- Microbiology
- Infectious Diseases
- Gastroenterology
Background:
- Clostridioides difficile is a common Gram-positive, anaerobic, spore-forming bacterium.
- It causes gastrointestinal infections, including C. difficile colitis, ranging from diarrhea to toxic megacolon.
- C. difficile infections are a leading cause of nosocomial infections with significant mortality and relapse rates.
Purpose of the Study:
- To describe the epidemiology and risk factors associated with Clostridioides difficile infections.
- To highlight the clinical manifestations and economic burden of C. difficile infections.
- To outline treatment protocols for C. difficile infections.
Main Methods:
- Literature review on Clostridioides difficile epidemiology, virulence factors, and risk factors.
- Analysis of clinical data related to C. difficile colitis and associated complications.
- Compilation of current treatment guidelines and emerging therapeutic strategies.
Main Results:
- C. difficile is prevalent in children and healthy adults, with increased incidence in healthcare settings and the community.
- Key virulence factors include toxin A, toxin B, and binary toxin.
- Risk factors include antibiotic exposure, hospitalization, advanced age, comorbidities, and immunosuppression.
Conclusions:
- Clostridioides difficile infections pose a significant public health challenge due to high morbidity, mortality, and recurrence.
- Understanding risk factors and virulence is crucial for prevention and management.
- Effective treatment protocols are essential to reduce the impact of these infections.
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