Related Experiment Video
Updated: Jul 20, 2026

Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
Published on: May 16, 2016
Endotoxin shock due to Vibrio vulnificus infection
Takaharu Ikeda1, Shoko Kanehara, Toshio Ohtani
1Department of Dermatology, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-0012, Japan. t-ikeda@wakayama-med.ac.jp
Abstract:
A 54-year-old man with hepatitis C fell into shock with symptoms similar to enterocolitis after ingesting an undercooked barbecued mackerel. Most of his eruptions developed into annular erythema with small vesicles. He had taken high dose corticosteroids with intravenous cefotiam. His eruptions improved, but his shock state was exacerbated on Day 2. Treatment for endotoxin shock was initiated using piperacillin, intravenous immunoglobulin (IVIg), and hemoperfusion with Polymyxin B immobilized fiber (PMX-F), which resulted in shock reversal. The serum IL-6 value was 118,000 pg/mL on admission, and decreased to 2040 pg/mL on Day 3. On Day 6, the results from the culture of skin biopsy specimens showed the diagnosis as Vibrio vulnificus septic shock. Debridement was not needed, which is thought to be essential to Vibrio vulnificus sepsis. The changes in the serum IL-6 levels demonstrated that hemoperfusion with PMX-F and IVIg therapy was practical for Vibrio vulnificus septic shock.
Insights
A patient with hepatitis C developed Vibrio vulnificus septic shock after eating undercooked fish. Combined therapy including Polymyxin B hemoperfusion and IVIg reversed shock and lowered IL-6 levels.
Area of Science:
- Infectious Diseases
- Critical Care Medicine
- Dermatology
Background:
- Hepatitis C infection can predispose individuals to severe bacterial infections.
- Undercooked seafood is a known source of Vibrio vulnificus.
- Septic shock presents a critical medical emergency requiring prompt intervention.
Observation:
- A 54-year-old man with hepatitis C presented with shock and enterocolitis-like symptoms after consuming undercooked mackerel.
- Skin eruptions evolved into annular erythema with vesicles.
- Initial treatment with corticosteroids and cefotiam did not prevent shock exacerbation.
Findings:
- Vibrio vulnificus septic shock was diagnosed via skin biopsy culture.
- Combined therapy with piperacillin, intravenous immunoglobulin (IVIg), and Polymyxin B immobilized fiber (PMX-F) hemoperfusion led to shock reversal.
- Significant reduction in serum Interleukin-6 (IL-6) levels was observed, correlating with treatment efficacy.
Implications:
- Hemoperfusion with PMX-F and IVIg is a potentially effective treatment strategy for severe Vibrio vulnificus septic shock.
- This case suggests that debridement may not always be necessary in Vibrio vulnificus sepsis.
- Monitoring IL-6 levels can be useful in assessing treatment response in septic shock.
Related Concept Videos
Bacterial Toxins
Cholera
Bacterial Gastroenteritis
Diphtheria
Bacterial Meningitis II: Pathophysiology
Botulism

