AHA/ACC 2026 Guidelines for the Evaluation and Management of Acute Pulmonary Embolism

AHA/ACC 2026 Guidelines for the Evaluation and Management of Acute Pulmonary EmbolismThe alphabet soup of societies (AHA/ACC/ACCP/ACP) has officially released the 2026 Multi-Society PE Guidelines. These guidelines move the field away from the blunt submassive labels and into a new era of granular, physiology-driven care.Categories Classifications A–E: The 2011 AHA labels are officially retired. We now use a spectrum from Category A (Subclinical) to Category E (Cardiopulmonary Failure). Key for IR: Advanced therapies are now strictly reserved for Categories D and E, while most Category C patients (even with RV strain) remain on medical management unless they deteriorate.The "R" Modifier: A new suffix for patients whose primary threat is respiratory failure rather than hemodynamic collapse (e.g., Category C2R), allowing for a more nuanced triage during PERT activations.Reading Room Mandate: The guidelines emphasize that clot volume does not equal risk. Radiologists must now prioritize reporting RV dysfunction parameters—including RV:LV ratio, McConnell’s sign, and TAPSE—as these are the data points that actually drive the A–E categorization.IVC Filter Pullback: In a major shift, routine IVC filter placement in anticoagulated patients is now a Class III: Harm recommendation. They are strictly limited to patients with absolute contraindications to anticoagulation or those failing therapy.The "Clot in Transit" Data Vacuum: For the 2-4% of patients with floating intracardiac thrombus, the guidelines admit a lack of randomized data, mandating a multidisciplinary PERT decision rather than a fixed surgical or interventional algorithm.Tune in to master the new rules of engagement for the IR suite and ensure your reports meet the 2026 standard. Based on comments from experts, content on Wysdom, and the guidelines cited below.Writing Committee Members*, Creager MA, Barnes GD, et al. 2026 AHA/ACC/ACCP/ACEP/CHEST/SCAI/SHM/SIR/SVM/SVN Guideline for the Evaluation and Management of Acute Pulmonary Embolism in Adults: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. Circulation. Published online February 19, 2026. doi:10.1161/CIR.0000000000001415