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Updated: May 25, 2026

Whole-cell MALDI-TOF Mass Spectrometry is an Accurate and Rapid Method to Analyze Different Modes of Macrophage Activation
Published on: December 26, 2013
Macrophage activation syndrome following Acinetobacter baumannii sepsis
Teny Mathew John1, Ceena N Jacob, Cherian C Ittycheria
1Department of Internal Medicine, Government Medical College, Kottayam, Kerala, 686008, India. teny007@gmail.com
Abstract:
Macrophage activation syndrome (MAS) is a systemic disorder with a high mortality, commonly associated with rheumatological conditions, but which can also occur as a complication of several infections. Here we present a case of MAS following Acinetobacter baumannii sepsis. Early institution of therapy with prednisolone, cyclosporine, colistin, and polymyxin resulted in a prompt clinical recovery. There are very few reported cases of Acinetobacter-related MAS that have been successfully treated.
Insights
Macrophage activation syndrome (MAS) is a severe condition often linked to rheumatology but also infections. This case highlights successful treatment of Acinetobacter baumannii-related MAS with early combination therapy.
Area of Science:
- Infectious Diseases
- Rheumatology
- Critical Care Medicine
Background:
- Macrophage activation syndrome (MAS) is a life-threatening systemic inflammatory condition.
- MAS is frequently associated with rheumatological diseases but can also arise from infections.
- Acinetobacter baumannii sepsis is a serious bacterial infection with significant morbidity.
Observation:
- A case of MAS was observed following Acinetobacter baumannii sepsis.
- The patient presented with MAS complicating a severe bacterial infection.
- This presentation is rare, with limited documented instances.
Findings:
- Prompt clinical recovery was achieved with early combination therapy.
- Treatment included prednisolone, cyclosporine, colistin, and polymyxin.
- This therapeutic approach proved effective in managing Acinetobacter-related MAS.
Implications:
- Early and aggressive combination therapy can be successful in treating Acinetobacter-related MAS.
- This case expands the understanding of MAS triggers and management strategies.
- Highlights the importance of considering MAS in sepsis patients with overlapping symptoms.
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