Multiple recurrent ischaemic strokes in a patient with cancer: is there a role for the initiation of anticoagulation therapy for secondary stroke prevention?

A 52-year-old woman with a medical history of cervical and thyroid cancer, hypertension, dyslipidaemia, uncontrolled diabetes and heavy smoking was diagnosed with a new metastatic cholangiocarcinoma. While undergoing palliative chemotherapy, she developed dysarthria and left-sided weakness. Imaging studies showed multiple bilateral ischaemic strokes. On hospital days 2 and 5, she developed worsening neurological symptoms and imaging studies revealed new areas of ischaemia on respective days. Subsequent workup did not revealed a clear aetiology for the multiple ischaemic events and hypercoagulability studies were only significant for a mildly elevated serum D-dimer level. Although guidelines are unclear, full-dose anticoagulation with low molecular weight heparin was initiated given her high risk of stroke recurrence. She was discharged to acute rehabilitation but, within a month, she experienced complications of her malignant disease progression and a new pulmonary thromboembolism. The patient died soon after being discharged home with hospice care.

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