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Pulmonary embolism--assessment and management
Megan Rees1, Trevor J Williams
1Department of Allergy, Immunology and Respiratory Medicine, Alfred Hospital, Victoria, Australia.
Australian Family Physician
|July 7, 2005
Summary
Pulmonary embolism (PE), often caused by deep venous thrombosis (DVT) from immobility, affects about two per 1000 people yearly. Early assessment and treatment, usually anticoagulation, significantly reduce mortality from this life-threatening condition.
Area of Science:
- Medical Science
- Cardiology
- Pulmonology
Background:
- Pulmonary embolism (PE) is a serious condition often affecting debilitated patients.
- It is frequently linked to deep venous thrombosis (DVT) resulting from immobility.
Purpose of the Study:
- To enhance understanding of PE's causes and mechanisms.
- To identify patients at higher risk for PE.
- To outline diagnostic and management strategies for PE.
Main Methods:
- Clinical assessment and basic investigations are initial diagnostic steps.
- Ventilation/perfusion lung scans or CT pulmonary angiograms are common confirmatory tests.
- Pulmonary angiography may be used for complex cases or as a gold standard.
Main Results:
- PE incidence is approximately two per 1000 person-years, primarily due to DVT in immobile individuals.
- PE during long flights in healthy individuals is rare.
- Treatment with anticoagulation, e.g., heparin followed by warfarin, substantially lowers mortality.
Conclusions:
- Effective management of PE, including anticoagulation, is crucial for reducing mortality.
- Thrombolytic therapy is reserved for massive PE cases.
- Persistent clots can lead to thromboembolic pulmonary hypertension, necessitating expert care.