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Report of 65 cases of Haemophilus influenzae b pneumonia
Abstract:
During a 14-year period there were 65 cases of pneumonia caused by Haemophilus influenzae b; 83% were children less than 2 years of age and 80% of illness occurred in winter and spring. The roentgenographic picture was consolidative pneumonia in 75% and pleural effusions were present in 75% of all cases. Ten patients had associated meningitis and three had purulent pericarditis. Otitis media was diagnosed in 43% and H influenzae b was isolated from eight middle ear aspirates. Three patients (5%) died. Recommendations for diagnosis and treatment are made.
Insights
Haemophilus influenzae type b pneumonia predominantly affects young children, particularly during winter and spring. This severe infection often presents with consolidative pneumonia and pleural effusions, sometimes leading to meningitis or pericarditis.
Area of Science:
- Pediatrics
- Infectious Diseases
- Pulmonology
Background:
- Haemophilus influenzae type b (Hib) is a significant cause of bacterial pneumonia in young children.
- Understanding the clinical presentation and outcomes of Hib pneumonia is crucial for timely diagnosis and management.
Purpose of the Study:
- To describe the clinical characteristics, radiographic findings, and outcomes of pneumonia caused by Haemophilus influenzae type b.
Main Methods:
- Retrospective review of 65 cases of Haemophilus influenzae type b pneumonia over a 14-year period.
- Analysis of patient demographics, clinical symptoms, radiographic findings, associated complications, and mortality.
Main Results:
- The majority of cases (83%) occurred in children under 2 years old, with a seasonal predilection for winter and spring (80%).
- Consolidative pneumonia (75%) and pleural effusions (75%) were common radiographic findings.
- Associated complications included meningitis (10 patients) and purulent pericarditis (3 patients). Otitis media was diagnosed in 43% of cases, with Hib isolated from middle ear aspirates in eight instances.
- The overall mortality rate was 5% (3 patients).
Conclusions:
- Haemophilus influenzae type b pneumonia is a serious condition in young children, often presenting with significant pulmonary and extrapulmonary complications.
- Prompt diagnosis and appropriate treatment are essential to reduce morbidity and mortality.
- Recommendations for diagnosis and treatment are provided based on the study findings.