Key result
New 2025 JCS guidelines emphasize early recognition and individualized therapy for cancer-associated VTE and PTTM.
Why the study?
To review risk factors, stratification, and treatment of cancer-associated VTE and the diagnosis and management of PTTM based on the revised 2025 Japanese Circulation Society guidelines.
This review highlights contemporary management of cancer-associated VTE using DOACs based on bleeding risk profiles, and emphasizes the critical need for early diagnosis and rapid cancer-directed therapy for the highly fatal PTTM.
本論文では2025年3月に改訂となった日本循環器学会の肺血栓塞栓症・深部静脈血栓症および肺高血圧症に関するガイドラインにおける知見をもとに,がん関連静脈血栓塞栓症(venous thromboembolism: VTE)のリスク因子・層別化と治療,ならびに極めて予後不良なPTTM(pulmonary tumor thrombotic microangiopathy)の診断と対応を概説する.腫瘍部位や血算異常(白血球増多・血小板増多・低Hb),D-dimer等のバイオマーカーを用いたKhoranaスコアの実臨床での位置づけ,低分子ヘパリン(low molecular weight heparin: LMWH)対照RCTに基づく直接経口抗凝固薬(direct oral anticoagulants: DOAC)の有効性・出血プロファイル,孤立性遠位DVTに対するONCO-DVTなどのエビデンスをもとにがん関連VTEの診断と治療を整理する.またPTTMは急速進行する低酸素血症とPHを特徴とし,肺動脈吸引細胞診などによる診断,原病治療の迅速開始が鍵である.早期認知と個別化治療が転帰改善に不可欠である.
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Yuichi Tamura (2025) conducted a review in Cancer-associated venous thromboembolism and pulmonary tumor thrombotic microangiopathy. Contemporary management (DOACs, LMWH) was evaluated. Contemporary management of cancer-associated VTE and PTTM, based on the 2025 Japanese Circulation Society guidelines, emphasizes early recognition and individualized therapy to improve outcomes.
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