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[Pseudomembranous rectocolitis]
Abstract:
The following conclusions were drawn from a study of 15 cases of pseudo-membranous coloproctitis (PMCP): PMCP was seen in subjects of both sexes and all ages. The causative agent was found in all antibiotic classes. Clinical signs comprised constant diarrhea, fever, abdominal pain, toxic shock and, more rarely, pseudo-occlusive, pseudo-perforative surgical evidence. Diagnosis involved visualization of pseudo-membranes by endoscopy. Lesions were most frequent in the left colon and increased in severity towards the distal end. Three stages were distinguished by histological examination: superficial necrosis of the mucous membranes, interruption of glands, complete necrosis of the mucous membrane. Without preparation the abdomen did not provide specific information; nor did barium enema which revealed lesions that were frequently diffuse but more marked in the left colon. Conventional coprocultures did not provide diagnostic information. Only a more sophisticated technique will be capable of detecting the pathogen currently considered to be the cause of PMCP: Clostridium difficile. The course of the disorder is generally satisfactory under medical treatment (parenteral feeding, vancomycin) but may sometimes call for surgery.
Insights
Pseudo-membranous coloproctitis (PMCP) affects all ages and sexes, often linked to antibiotics. Diagnosis relies on endoscopy and histology, with Clostridium difficile identified as the pathogen.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Colorectal Surgery
Background:
- Pseudo-membranous coloproctitis (PMCP) is a severe intestinal condition.
- Antibiotic use is a significant risk factor for PMCP development.
Purpose of the Study:
- To investigate the clinical presentation, diagnosis, and treatment of PMCP.
- To identify the causative agent and pathological features of PMCP.
Main Methods:
- Retrospective analysis of 15 PMCP cases.
- Clinical evaluation, endoscopy, histological examination, and imaging studies (abdominal X-ray, barium enema).
- Microbiological investigation focusing on Clostridium difficile detection.
Main Results:
- PMCP occurred across all ages and sexes, associated with various antibiotic classes.
- Common symptoms included diarrhea, fever, and abdominal pain; surgical findings indicated pseudo-obstruction or perforation.
- Endoscopy revealed pseudo-membranes, predominantly in the left colon, with severity increasing distally.
- Histology identified three stages: superficial necrosis, gland interruption, and complete mucosal necrosis.
- Abdominal X-rays and barium enemas lacked specificity, while conventional coprocultures were uninformative for Clostridium difficile.
Conclusions:
- PMCP diagnosis is confirmed by endoscopic visualization of pseudo-membranes and histological staging.
- Clostridium difficile is the primary pathogen, detectable by specialized techniques.
- While medical management (parenteral nutrition, vancomycin) is often effective, surgical intervention may be necessary in some cases.