Longevity & Aging

Catheter-Directed Clot Busting Cuts Pulmonary Embolism Collapse Risk by 61%

The HI-PEITHO trial, published in NEJM, randomized 544 patients with intermediate-risk pulmonary embolism to ultrasound-facilitated, catheter-directed fibrinolysis plus anticoagulation versus anticoagulation alone. Within 7 days, the composite primary outcome — PE-related death, cardiorespiratory decompensation or collapse, or symptomatic PE recurrence — occurred in just 4.0% of the intervention group versus 10.3% of controls, a 61% relative risk reduction. Major bleeding rates were low and statistically similar between groups, and no intracranial hemorrhage occurred. These findings challenge the standard of anticoagulation alone for this patient population and support more aggressive early intervention in carefully selected intermediate-risk PE patients.