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Single and multiple pyogenic liver abscesses: etiology, clinical course, and outcome
J A Alvarez1, J J González, R F Baldonedo
1Department of General Surgery, Hospital San Agustin, Avilés, Spain. josealvar@arrakis.es
Background:
Pyogenic liver abscesses are uncommon but they still carry a high mortality rate when encountered. This study was undertaken to evaluate the differences in the clinical behaviour of patients with single and multiple abscesses.
Methods:
From January 1985 to December 1997, 133 patients with this disease were treated in the surgical departments of five hospitals, 97 had a single abscess and 36 had multiple abscesses. Clinical features, methods of treatment, and outcome were assessed and compared in both types of abscesses.
Results:
A biliary origin from ascending cholangitis was most frequently found in multiple abscesses (p = 0.007). Mean age and duration of symptoms were higher in multiple lesions (p = 0.03 and p = 0.001). High levels of alkaline phosphatase were more frequently seen in multiple abscesses than in solitary ones (p = 0.02). They were both most frequently located on the right side. Antibiotic therapy alone was most frequently used in multiple abscesses (p = 0.01). Mortality rate was also higher in this type of patients (p = 0.01). The abscess-related morbidity rate was higher in multiple lesions as well but the statistical difference was not significant.
Conclusions:
These results suggest that multiple liver abscesses comprise a disease of biliary origin, higher age, longer symptomatic periods, and also higher mortality rate than in single abscess.
Insights
Multiple pyogenic liver abscesses, often from biliary issues, present with older patients and longer symptoms, leading to higher mortality compared to single abscesses.
Area of Science:
- Hepatology
- Surgical Gastroenterology
- Infectious Diseases
Background:
- Pyogenic liver abscesses are uncommon but severe, with high mortality.
- Understanding differences between single and multiple abscesses is crucial for treatment.
Purpose of the Study:
- To compare clinical behavior, treatment, and outcomes of single versus multiple pyogenic liver abscesses.
- To identify factors associated with increased mortality in liver abscess patients.
Main Methods:
- Retrospective analysis of 133 patients with pyogenic liver abscesses (1985-1997).
- Comparison of clinical features, treatment strategies, and outcomes between single (n=97) and multiple (n=36) abscess groups.
Main Results:
- Multiple abscesses were linked to biliary origin (ascending cholangitis) and higher alkaline phosphatase levels.
- Patients with multiple abscesses were older, had longer symptom durations, and received antibiotic therapy more frequently.
- Higher mortality rates were observed in patients with multiple liver abscesses.
Conclusions:
- Multiple pyogenic liver abscesses represent a distinct clinical entity with biliary origins, associated with older age, prolonged symptoms, and increased mortality.
- These findings highlight the need for tailored management strategies for multiple liver abscesses to improve patient outcomes.
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