Related Experiment Videos
Postmortem analysis of invasive aspergillosis in a tertiary care hospital
1Max von Pettenkofer-Institut für Hygiene und Medizinische Mikrobiologie, Munich, Germany.
Abstract:
To estimate the incidence of fatal invasive aspergillosis in a 1500-bed tertiary-care hospital and to investigate the utility of laboratory diagnostic approaches, necropsy protocols and microbiological data from 1994 and 1995 were reviewed. Among 694 necropsies from 1693 patients who died in these two years, 27 (4%) cases of invasive aspergillosis were identified. Twelve cases of invasive aspergillosis were found after transplantation of solid organs, three after bone marrow transplantation, four in patients with haematological malignancies, and five in patients with solid tumours. In 15 cases (56%) invasive aspergillosis was not suspected before death. In patients in whom serum sampling was performed seven days antemortem, the Aspergillus latex agglutination test had a sensitivity of 53% (9/17). Culture of tracheal secretions or bronchoalveolar lavage fluid from patients with pulmonary aspergillosis yielded Aspergillus fumigatus in 88% (14/16).
Insights
Fatal invasive aspergillosis occurred in 4% of deceased patients, often undiagnosed before death. Diagnostic tests showed limited sensitivity for this serious fungal infection.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Clinical Pathology
Background:
- Invasive aspergillosis is a severe fungal infection.
- Accurate incidence data and diagnostic utility are crucial for patient outcomes.
Purpose of the Study:
- To determine the incidence of fatal invasive aspergillosis.
- To evaluate laboratory and necropsy diagnostic methods.
Main Methods:
- Retrospective review of necropsy and clinical data (1994-1995).
- Analysis of 694 necropsies from 1693 deceased patients.
- Evaluation of diagnostic test sensitivity (latex agglutination, culture).
Main Results:
- 27 cases (4%) of fatal invasive aspergillosis identified.
- High-risk groups included transplant recipients and those with hematologic malignancies.
- 56% of cases were not suspected antemortem.
- Aspergillus latex agglutination sensitivity was 53%; tracheal/lavage culture sensitivity was 88% for Aspergillus fumigatus.
Conclusions:
- Fatal invasive aspergillosis represents a significant mortality factor in tertiary care settings.
- Current diagnostic approaches have limitations in early detection.
- Improved diagnostic strategies are needed for timely intervention.