Acute Pulmonary Embolism: A Review.

Area of Science:

• Cardiology
• Pulmonology
• Internal Medicine

Background:

• Pulmonary embolism (PE) is a life-threatening condition caused by a blood clot obstructing pulmonary arteries, leading to significant mortality.
• PE affects 370,000 individuals annually in the US, with 60,000-100,000 deaths.

Purpose of the Study:

• To outline diagnostic strategies for pulmonary embolism.
• To compare treatment options for pulmonary embolism.

Main Methods:

• Clinical probability assessment using structured scores or gestalt.
• D-dimer testing for low-to-intermediate probability cases.
• Chest imaging (e.g., CT pulmonary angiography) for high-probability cases or when other tests are inconclusive.

Main Results:

• A validated clinical assessment tool can identify very low-risk patients who may not require further testing.
• D-dimer testing can effectively rule out PE in low-to-intermediate risk patients with negative results.
• Direct oral anticoagulants (DOACs) are non-inferior to traditional anticoagulants for PE treatment and have a lower bleeding risk.
• Systemic thrombolysis is recommended for hemodynamically unstable patients with PE, reducing mortality.

Conclusions:

• PE diagnosis can be streamlined using a stepwise approach combining clinical assessment, D-dimer, and imaging.
• DOACs represent a preferred first-line therapy for PE management in most patients.
• Thrombolysis remains crucial for severe, life-threatening PE cases.
• Effective PE management strategies improve patient outcomes and reduce mortality.