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Systemic manifestations of invasive amebiasis
M Ahmed1, K P McAdam, A W Sturm
1Department of Surgery, Aga Khan University, Karachi, Pakistan.
Summary
Serious Entamoeba histolytica infections, particularly amebic liver abscess (ALA), can cause systemic complications. Older age and steroid use increase risk, while lower acute-phase markers indicate complications.
Area of Science:
- Infectious Diseases
- Clinical Medicine
- Parasitology
Background:
- Investigating systemic complications in serious Entamoeba histolytica infections.
- Utilizing objective criteria for organ system dysfunction, similar to surgical sepsis assessment.
Observation:
- Eighty-four patients with serious Entamoeba histolytica infections were studied.
- Among 71 patients with amebic liver abscess (ALA), 41% experienced systemic complications.
- Over 40 years of age and steroid use were identified as significant risk factors for complications.
Findings:
- Patients with ALA showed elevated erythrocyte sedimentation rate, C-reactive protein (CRP), and serum amyloid A (SAA).
- ALA patients with complications had lower CRP and SAA levels compared to those without complications.
- Blood and liver aspirates were typically sterile, suggesting a non-bacterial origin for complications.
Implications:
- Further research is needed to understand the pathogenesis of systemic complications and acute-phase responses in ALA.
- Developing methods to predict disease severity and guide therapeutic interventions is crucial.