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Cardiac and pulmonary involvement in leptospirosis
Summary
Fatal leptospirosis causes heart and lung damage, including hemorrhages and edema. Pulmonary involvement, resembling ARDS, is a major cause of death and requires close monitoring in severe cases.
Area of Science:
- Pathology
- Infectious Diseases
- Cardiopulmonary Medicine
Background:
- Leptospirosis is a zoonotic disease with diverse clinical manifestations.
- Cardiac and pulmonary involvement can be severe and life-threatening.
- Understanding the clinico-pathological features is crucial for diagnosis and management.
Purpose of the Study:
- To investigate the clinico-pathological characteristics of cardiac and pulmonary involvement in fatal leptospirosis.
- To identify key pathological findings and their correlation with clinical presentation.
- To assess the prognostic significance of pulmonary lesions.
Main Methods:
- Retrospective analysis of seven fatal leptospirosis cases.
- Detailed clinico-pathological examination of cardiac and pulmonary tissues.
- Correlation of pathological findings with clinical data and outcomes.
Main Results:
- All cases exhibited cardiac and pericardial petechial hemorrhages.
- Interstitial myocarditis was observed in five cases, linked to cardiovascular effects.
- All cases showed sub-pleural and intrapulmonary hemorrhages; pulmonary edema was prominent early on.
- Late-stage pulmonary changes included infiltrative and proliferative lesions, resembling ARDS.
- Pulmonary involvement was a significant factor in mortality.
Conclusions:
- Cardiac and pulmonary hemorrhages are consistent findings in fatal leptospirosis.
- Pulmonary involvement, particularly ARDS-like presentation, carries a grave prognosis.
- Close clinical and radiological surveillance is essential for severe leptospirosis due to late-onset pulmonary manifestations.