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Diagnosis of Clostridium difficile-associated intestinal disease
Abstract:
Toxigenic Clostridium difficile is the major cause of antimicrobial agent-associated pseudomembranous colitis and is the etiological agent of approximately 30% of cases of nonspecific colitis and diarrhea (without colitis) induced by antimicrobial agents. In addition, C. difficile has been implicated in certain intestinal diseases not related to prior antimicrobial administration. C. difficile has been reported to be one of the most common enteropathogens isolated from stool specimens submitted to hospital laboratories. Thus, diagnosis of C. difficile-associated intestinal disease should now be routinely performed in diagnostic clinical laboratories. The diagnosis of C. difficile-associated intestinal disease relies on the demonstration of either the organism or the toxin(s) in stool specimens or antibody response in serum to the toxin(s). Several selective medium are available for the recovery of C. difficile from stool specimens. The toxin(s) of C. difficile can be demonstrated using a variety of techniques, including biological assays as well as immunological assays. This article will review the techniques currently available to aid in the diagnosis of C. difficile-associated intestinal disease.
Insights
Toxigenic Clostridium difficile causes significant intestinal diseases, including colitis and diarrhea, often linked to antibiotics. Routine laboratory diagnosis is crucial for identifying this common enteropathogen and its toxins.
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Gastroenterology
Background:
- Toxigenic Clostridium difficile is a primary cause of antibiotic-associated colitis and diarrhea.
- It is also implicated in intestinal diseases unrelated to antibiotic use.
- C. difficile is a frequent enteropathogen found in hospital stool samples.
Purpose of the Study:
- To review current diagnostic techniques for C. difficile-associated intestinal disease.
- To emphasize the importance of routine diagnosis in clinical laboratories.
Main Methods:
- Diagnosis relies on detecting the organism or its toxins in stool.
- Antibody response in serum can also indicate infection.
- Various selective media are available for isolating C. difficile.
- Toxin detection employs biological and immunological assays.
Main Results:
- C. difficile is a common cause of hospital-acquired diarrhea and colitis.
- Diagnostic methods focus on organism/toxin detection or serological response.
- Multiple laboratory techniques exist for diagnosis.
Conclusions:
- Routine diagnosis of C. difficile-associated intestinal disease is recommended.
- Accurate diagnostic methods are essential for patient management.
- Understanding diagnostic approaches aids in controlling C. difficile infections.