Management of pulmonary embolism in patients with cancer
Pulmonary embolism (PE) is a frequent complication in patients with cancer. Clinicians have to maintain a high index of suspicion to reduce the large proportion of PEs that remain undiagnosed in the cancer population. Thrombolysis is not a standard treatment for haemodynamically unstable patients with cancer-associated PE because the risk of haemorrhage can be excessive. Anticoagulation with a low-molecular-weight heparin (LMWH) or a non-vitamin K antagonist oral anticoagulant (NOAC) for at least 6 months is the current standard of care for the treatment of cancer-associated PE. Due to signals of an increased bleeding risk as compared to LMWH, NOACs should be administered cautiously in patients with luminal gastrointestinal malignancies such as oesophagogastric or colorectal cancer. Patients with active malignancy and ongoing cancer therapy appear to be the strongest candidates for long-term anticoagulation beyond 6 months. Guidance statements facilitate the management of challenging patients with brain metastases, unsuspected PE, thrombocytopenia, kidney function impairment, and recurrent PE.