Systematic Review | Catheter‐directed therapies for the treatment of high risk (massive) and intermediate risk (submassive) acute pulmonary embolism. 10 Aug, 2022 | 12:32h | UTC Catheter‐directed therapies for the treatment of high risk (massive) and intermediate risk (submassive) acute pulmonary embolism – Cochrane Library Summary: Minimally invasive treatments to dissolve blood clots in the lungs (acute pulmonary embolism) – Cochrane Library