Cancer-associated thrombosis: pathogenesis, risk factors, and treatment. A review

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Abstract

Cancer-associated thrombosis (CAT) is one of the most frequent and dangerous complications of malignancies, ranking 2nd among the causes of death in cancer patients. The article presents an overview of current data on the pathogenesis of thrombosis in cancer patients, including the key role of tumor cells, inflammatory cytokines, neutrophil extracellular traps, and dysregulation of hemostasis. CAT epidemiology, individual (age, comorbidities, mobility) and tumor-dependent (location, stage, histology) risk factors, as well as the effect of various types of anticancer therapy, including chemotherapy, surgery, and the use of central venous catheters, are considered. Particular attention is paid to modern approaches to the prevention and treatment of CAT, including direct oral anticoagulants, their advantages over low molecular weight heparins, and data from large randomized trials (CARAVAGGIO and API-CAT). The review includes an analysis of international and Russian clinical guidelines (ASCO, NCCN, RUSSCO), focusing on the need for an individual approach, considering the clinical situation, the risk of bleeding, and drug interactions. The presented data emphasize the importance of timely detection of CAT and rational choice of therapy to reduce the risk of complications and improve the prognosis in cancer patients. The presented data emphasize the importance of timely detection of CAT and rational choice of therapy to reduce the risk of complications and improve the prognosis in cancer patients. In addition, a reduced dose of apixaban (2.5 mg twice daily) after 6 months of therapy was found to be effective in preventing the recurrence of venous thromboembolism and reducing the incidence of clinically significant bleeding compared to the full dose.

About the authors

Airat I. Bilyalov

Loginov Moscow Clinical Scientific Center

Author for correspondence.
Email: BilyalovAir@yandex.ru
ORCID iD: 0000-0002-8888-8395

Cand. Sci. (Med.), Oncologist

Russian Federation, Moscow

Alfia I. Nesterova

Segal Republican Clinical Oncological Dispensary; Kazan (Volga Region) Federal University; Kazan State Medical Academy – a branch of the Russian Medical Academy of Continuous Professional Education

Email: BilyalovAir@yandex.ru
ORCID iD: 0000-0003-4249-5518

Cand. Sci. (Med.), Oncologist, Head of Department

Russian Federation, Kazan; Kazan; Kazan

Natalia A. Bodunova

Loginov Moscow Clinical Scientific Center

Email: BilyalovAir@yandex.ru
ORCID iD: 0000-0002-3119-7673

Cand. Sci. (Med.)

Russian Federation, Moscow

Sergey V. Zinchenko

Segal Republican Clinical Oncological Dispensary; Kazan (Volga Region) Federal University

Email: BilyalovAir@yandex.ru
ORCID iD: 0000-0002-9306-3507

D. Sci. (Med.), Oncologist; Head of Department

Russian Federation, Kazan; Kazan

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2. Fig. 1. Virchow's triad.

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3. Fig. 2. Etiology of cancer-associated thrombosis.

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4. Fig. 3. RUSSCO’s recommendations for the treatment of VTE and prevention of recurrence in patients older than 18 years diagnosed with cancer [77].

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