The American Heart Association and American College of Cardiology have published the first clinical practice guideline for acute pulmonary embolism, introducing a new classification system and comprehensive treatment recommendations aimed at improving patient outcomes. The guideline, published in Circulation and JACC, addresses a condition that hospitalizes approximately 470,000 people annually in the U.S., with approximately 1 in 5 high-risk patients dying from the condition.
The guideline introduces new Acute Pulmonary Embolism Clinical Categories that classify patients into five categories (A-E) based on symptom severity and risk for adverse outcomes. This system helps clinicians determine appropriate care settings, from outpatient management for low-risk patients to critical care for those with severe symptoms. According to guideline writing committee chair Mark A. Creager, M.D., "This guideline is a road map to help clinicians navigate these advances for the safest and most effective approaches to care for people with this condition."
Prompt diagnosis remains challenging because symptoms like shortness of breath, chest pain, and rapid heartbeat mimic other conditions. The guideline emphasizes risk factor assessment including recent surgery or hospitalization, trauma, prolonged immobility, pregnancy, obesity, cancer, and blood clotting disorders. For diagnostic testing, the guideline recommends D-dimer blood tests for patients with low or intermediate probability of acute PE, with computed tomography pulmonary angiography (CTPA) as the standard imaging test for confirmation.
Treatment recommendations prioritize direct oral anticoagulants (DOACs) over vitamin K antagonists due to their safety, ease of use, and reduced bleeding risk. The guideline details advanced treatments for higher-risk categories, including catheter-based procedures and surgical clot removal. The complete guideline is available at https://www.ahajournals.org/doi/10.1161/CIR.0000000000001298 and https://www.jacc.org/doi/10.1016/j.jacc.2026.01.045.
Follow-up care recommendations include communication within one week of discharge and clinic visits by three months after diagnosis to determine anticoagulation duration and assess ongoing symptoms. Long-term monitoring focuses on screening for chronic thromboembolic pulmonary disease, which can lead to pulmonary hypertension and heart failure. The guideline also addresses psychological health considerations, safe physical activity, travel precautions, and pregnancy-related management.
The guideline was developed in collaboration with eight other healthcare organizations and represents a significant advancement in standardizing care for acute pulmonary embolism. "We anticipate that decisions guided by these recommendations will result in more rapid diagnosis and application of effective, evidence-based treatments, leading to better outcomes, such as decreased risk of death and disability, for people with acute pulmonary embolism," Creager said. Additional resources are available through the American Heart Association Guideline Hub for Professionals at https://professional.heart.org/en/guidelines-and-statements.
