American Society of Hirudotherapy

How I Manage Cancer-Associated Thrombosis

Research article published in Hamostaseologie (2020)

Last Updated: June 18, 2026Reviewed by: ASH Editorial Board
Research article — evidence reviewArticle reference
Evidence: Case reportClinical TrialsMoik et al. · Hamostaseologie, 2020

Abstract

In this concise review, we discuss some common clinical challenges in the management of patients with cancer-associated venous thromboembolism (VTE), a frequent complication in patients with cancer that increases morbidity and mortality. While direct oral anticoagulants (DOACs) have been established in clinical practice for anticoagulation in patients with VTE without cancer, their efficacy and safety in patients with cancer have not been assessed in randomized controlled trials until recently. The choice of the appropriate anticoagulant agent in the era of DOACs to treat patients with cancer-associated VTE is based on balancing the risk of recurrence against the risk of bleeding, and potential drug-drug interactions. However, the management of patients is challenged by special scenarios such as incidentally diagnosed pulmonary embolism and catheter-related thrombosis, and sometimes complicated by concomitant thrombocytopenia. We provide guidance for management of cancer-associated VTE in different clinical scenarios in a case-based manner and briefly review recent clinical studies and guidelines to explain our approach to management of the cases. Im Rahmen dieser Übersichtsarbeit werden einige Facetten und Herausforderungen beleuchtet, die die Behandlung von PatientInnen mit Krebs-assoziierten venösen Thromboembolien (VTE) mit sich bringt. Während für die Behandlung der VTE bei PatientInnen ohne Krebs direkte orale Antikoagulanzien (DOAK) bereits ihren Einzug in die klinische Routine gefunden haben, waren Effektivität und Sicherheit dieser Medikament Therapie der Krebs-assoziierten VTE bis kürzlich nicht durch ausreichende Evidenz gesichert. Verkompliziert wird Antikoagulation bei Personen mit einer Krebserkrankung durch ein erhöhtes VTE-Rezidiv- und Blutungsrisiko, potentielle Medikamenteninteraktionen, eine begleitende Thrombozytopenie sowie spezielle klinische Fälle wie die Katheter-assoziierten Thrombose oder eine inzidentell diagnostizierte Pulmonalembolie. Das Ziel dieser Arbeit ist es, die neueste Evidenz zu den klinischen Herausforderungen einer Krebs-assoziierten VTE Fall-basiert zusammenzufassen und damit einen Leitfaden für den klinischen Alltag zu bieten.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Publication typeCase ReportsJournal ArticleReview
Indexed MeSH termsAgedFemaleHumansMaleMiddle AgedNeoplasmsThrombosis

Summary

Peer-reviewed clinical and outcomes research relevant to medicinal leech therapy and its biology. Indexed in PubMed and verified against the NCBI record.

Why This Matters for Hirudotherapy

This case-based review discusses managing cancer-associated venous thromboembolism, weighing recurrence risk against bleeding risk and drug-drug interactions when choosing among anticoagulants, including direct oral anticoagulants, in scenarios such as incidental pulmonary embolism, catheter-related thrombosis, and concurrent thrombocytopenia. It is relevant to hirudotherapy only as systemic-anticoagulation context: it illustrates how clinicians select anticoagulant strategy by balancing clotting and bleeding, the same tradeoff that frames any discussion of leech-derived anticoagulants. Honest caveat: this is an expert narrative review of systemic oncologic anticoagulation with no mention of leeches or hirudin, so it informs the broader clinical-evidence landscape rather than supporting leech therapy.

Citation

How I Manage Cancer-Associated Thrombosis.

Moik et al. · Hamostaseologie, 2020

Added to ASH library: May 28, 2026 · Site last updated: June 18, 2026

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