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2026
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| Online Access: | https://doi.org/10.5281/zenodo.20378825 |
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| author | Indunil Karunarathna |
| author_facet | Indunil Karunarathna |
| contents | <p class="MsoNormal"><em><span>Clostridium perfringens</span></em><span> is an anaerobic, spore-forming, gram-positive bacillus that occupies a unique and paradoxical position in clinical medicine. On one hand, it is one of the most common causes of self-limited, foodborne diarrheal disease worldwide, typically resolving with nothing more than hydration and patience. On the other hand, in its invasive forms—clostridial myonecrosis (gas gangrene) or enteritis necroticans—it represents one of the most rapid and lethal infectious emergencies a clinician will ever encounter. This update revisits the fundamental toxonomic classification of <em>C. perfringens</em> into types A through G based on six major toxins, emphasizing that types A and C are the primary human pathogens. Type A, via its enterotoxin (CPE), accounts for the majority of food poisoning outbreaks, often traced to improperly stored or reheated meats and gravies. Type C, producing beta-toxin, causes the devastating hemorrhagic necrosis of the jejunum known as pigbel, historically endemic to Papua New Guinea and post-WWII Germany. The pathophysiology is toxin-mediated tissue destruction, with alpha-toxin (CPA) impairing neutrophil function and creating a pro-ischemic, gas-forming environment, while perfringolysin O (PFO) synergizes with CPA in myonecrosis. Clinically, the key red flag is pain out of proportion to physical findings in a wound with edema, bullae, and a musty odor. Diagnosis in diarrheal outbreaks relies on stool culture (≥10⁵ CFU/g) or enterotoxin detection, while myonecrosis is a clinical-surgical diagnosis that cannot await imaging or labs. Management is dichotomous: supportive care for enteritis, but emergent surgical debridement plus penicillin-clindamycin for invasive disease. Even with optimal treatment, mortality from gas gangrene remains 20–30% and approaches 100% without surgery. The core educational message for trainees is this: never let a benign-sounding name like <em>perfringens</em> fool you. This organism demands respect, rapid recognition, and an interprofessional team approach involving surgery, infectious diseases, nursing, and pharmacy.</span></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_20378825 |
| institution | Zenodo |
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| publishDate | 2026 |
| publisher | Zenodo |
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| spellingShingle | Clostridium perfringens: A Clinical Update on a Ubiquitous Pathogen—From Self-Limited Diarrhea to Surgical Emergency Indunil Karunarathna <p class="MsoNormal"><em><span>Clostridium perfringens</span></em><span> is an anaerobic, spore-forming, gram-positive bacillus that occupies a unique and paradoxical position in clinical medicine. On one hand, it is one of the most common causes of self-limited, foodborne diarrheal disease worldwide, typically resolving with nothing more than hydration and patience. On the other hand, in its invasive forms—clostridial myonecrosis (gas gangrene) or enteritis necroticans—it represents one of the most rapid and lethal infectious emergencies a clinician will ever encounter. This update revisits the fundamental toxonomic classification of <em>C. perfringens</em> into types A through G based on six major toxins, emphasizing that types A and C are the primary human pathogens. Type A, via its enterotoxin (CPE), accounts for the majority of food poisoning outbreaks, often traced to improperly stored or reheated meats and gravies. Type C, producing beta-toxin, causes the devastating hemorrhagic necrosis of the jejunum known as pigbel, historically endemic to Papua New Guinea and post-WWII Germany. The pathophysiology is toxin-mediated tissue destruction, with alpha-toxin (CPA) impairing neutrophil function and creating a pro-ischemic, gas-forming environment, while perfringolysin O (PFO) synergizes with CPA in myonecrosis. Clinically, the key red flag is pain out of proportion to physical findings in a wound with edema, bullae, and a musty odor. Diagnosis in diarrheal outbreaks relies on stool culture (≥10⁵ CFU/g) or enterotoxin detection, while myonecrosis is a clinical-surgical diagnosis that cannot await imaging or labs. Management is dichotomous: supportive care for enteritis, but emergent surgical debridement plus penicillin-clindamycin for invasive disease. Even with optimal treatment, mortality from gas gangrene remains 20–30% and approaches 100% without surgery. The core educational message for trainees is this: never let a benign-sounding name like <em>perfringens</em> fool you. This organism demands respect, rapid recognition, and an interprofessional team approach involving surgery, infectious diseases, nursing, and pharmacy.</span></p> |
| title | Clostridium perfringens: A Clinical Update on a Ubiquitous Pathogen—From Self-Limited Diarrhea to Surgical Emergency |
| url | https://doi.org/10.5281/zenodo.20378825 |