Hiroyuki Kawano1, Yuko Honda2, Tatsuo Amano2, Haruko Okano3, Rieko Suzuki2, Masataka Torii4, Yoshiko Unno2, Yoshiaki Shiokawa4, Teruyuki Hirano2. 1. Stroke Center, Kyorin University, Mitaka, Tokyo, Japan; Department of Stroke and Cerebrovascular Medicine, Kyorin University, Mitaka, Tokyo, Japan. Electronic address: hkawanoo@gmail.com. 2. Stroke Center, Kyorin University, Mitaka, Tokyo, Japan; Department of Stroke and Cerebrovascular Medicine, Kyorin University, Mitaka, Tokyo, Japan. 3. Stroke Center, Kyorin University, Mitaka, Tokyo, Japan; Department of Neurology, Kyorin University, Mitaka, Tokyo, Japan. 4. Stroke Center, Kyorin University, Mitaka, Tokyo, Japan; Department of Neurosurgery, Kyorin University, Mitaka, Tokyo, Japan.
Abstract
BACKGROUND: Anticoagulation therapy, particularly subcutaneous heparin therapy, is recommended for cancer-associated thrombosis. However, not starting or discontinuing anticoagulation was not rare. The aim of the present study was to examine the practical issues related to anticoagulation therapy and effects of subcutaneous heparin therapy for cancer-associated stroke. METHODS: Patients with cancer-associated stroke in our stroke center between October 2014 and August 2017 who were diagnosed as having acute ischemic stroke based on diffusion-weighted imaging were retrospectively enrolled. Baseline clinical characteristics, heparin injection, reasons for no subcutaneous heparin therapy, and clinical outcomes were collected. RESULTS: A total of 59 patients with cancer-associated stroke (75 ± 10 years old, male 42%) were enrolled. Lung cancer was the most frequently observed cancer (n = 17, 29%), followed by gastric cancer (n = 8, 14%) and pancreatic cancer (n = 8, 14%). Of the 19 patients (32%) who underwent subcutaneous heparin therapy, it was discontinued in 9 (47%), mainly because of patients' medical conditions (deterioration of cancer or hemorrhagic complication). Ten patients with long-term subcutaneous heparin therapy did not have stroke recurrence. In contrast, among nine patients who discontinued subcutaneous heparin therapy, three (33%) had recurrence of ischemic stroke. Of the 40 patients without subcutaneous heparin therapy, the main reasons for no subcutaneous heparin therapy were the patients' medical conditions (n = 22, 55%). CONCLUSIONS: Although subcutaneous heparin therapy was given to only one third of cancer-associated stroke patients, long-term subcutaneous heparin therapy might prevent recurrence of cancer-associated stroke.
BACKGROUND: Anticoagulation therapy, particularly subcutaneous heparin therapy, is recommended for cancer-associated thrombosis. However, not starting or discontinuing anticoagulation was not rare. The aim of the present study was to examine the practical issues related to anticoagulation therapy and effects of subcutaneous heparin therapy for cancer-associated stroke. METHODS:Patients with cancer-associated stroke in our stroke center between October 2014 and August 2017 who were diagnosed as having acute ischemic stroke based on diffusion-weighted imaging were retrospectively enrolled. Baseline clinical characteristics, heparin injection, reasons for no subcutaneous heparin therapy, and clinical outcomes were collected. RESULTS: A total of 59 patients with cancer-associated stroke (75 ± 10 years old, male 42%) were enrolled. Lung cancer was the most frequently observed cancer (n = 17, 29%), followed by gastric cancer (n = 8, 14%) and pancreatic cancer (n = 8, 14%). Of the 19 patients (32%) who underwent subcutaneous heparin therapy, it was discontinued in 9 (47%), mainly because of patients' medical conditions (deterioration of cancer or hemorrhagic complication). Ten patients with long-term subcutaneous heparin therapy did not have stroke recurrence. In contrast, among nine patients who discontinued subcutaneous heparin therapy, three (33%) had recurrence of ischemic stroke. Of the 40 patients without subcutaneous heparin therapy, the main reasons for no subcutaneous heparin therapy were the patients' medical conditions (n = 22, 55%). CONCLUSIONS: Although subcutaneous heparin therapy was given to only one third of cancer-associated strokepatients, long-term subcutaneous heparin therapy might prevent recurrence of cancer-associated stroke.