How to Choose An Appropriate Anticoagulant for Cancer-Associated Thrombosis

Research progress on venous thrombosis development in patients with malignant tumors

The coexistence of venous thromboembolism (VTE) within patients with cancer, known as cancer-associated thrombosis (CAT), stands as a prominent cause of mortality in this population. Over recent years, the incidence of VTE has demonstrated a steady increase across diverse tumor types, influenced by several factors such as patient management, tumor-specific risks, and treatment-related aspects. Furthermore, mutations in specific genes have been identified as potential contributors to increased CAT occurrence in particular cancer subtypes. We conducted an extensive review encompassing pivotal historical and ongoing studies on CAT. This review elucidates the risks, mechanisms, reliable markers, and risk assessment methodologies that can significantly guide effective interventions in clinical practice.

Prophylactic Anticoagulation in Patients with Cancer: When and How?

PURPOSE OF REVIEW

Cancer-associated thrombosis is a leading cause of death among patients with cancer. Historically, thromboprophylaxis efforts have focused on the highest risk patients with cancer, including post-operative patients and hospitalized patients. This review covers not only thromboprophylaxis for these groups but also emerging data supporting prophylaxis in ambulatory medical oncology patients.

RECENT FINDINGS

Several leading guidelines, backed by clinical trial data, now support the use of direct oral anticoagulants for select high-risk outpatients for primary thromboprophylaxis. However, uptake of these findings remains low. Pharmacologic venous thromboembolism prophylaxis strategies continue to improve. However, it remains challenging to balance competing risks of bleeding and thrombosis. The morbidity and mortality associated with cancer associated thrombosis may be preventable. Understanding advancements in risk prediction, anticoagulant options, and implementation of existing data, is critical to provide optimal patient care.

Inferior Vena Cava Filter Use in the Setting of Gastrointestinal Blood Loss, Malignancy, and Multiple Thromboembolisms: A Case Report

Cancer-associated thromboembolism (CAT) is a common yet serious condition that occurs due to the physiological changes brought about by malignancy. The two conditions that are the most prevalent are deep vein thrombosis (DVT) and pulmonary embolism (PE). Anticoagulation is the standard of care for these thrombotic problems, however, in the event these medications are contraindicated, other treatment modalities may be needed. One common example is in the setting of an active bleed, such as gastrointestinal (GI) cancer. A treatment that has been used more frequently in recent years is the inferior vena cava (IVC) filter. These can be placed to provide a physical barrier to prevent a thrombus from moving through the circulation and potentially embolizing critical organs. An advantage of these devices is that they can be placed and removed when the use of pharmacological agents is better indicated. This report is a good example of a situation where an active GI malignancy created a hypercoagulable state leading to multiple thromboembolisms. An IVC filter was placed in the perioperative setting to prevent further thrombus migration while the primary malignancy was cured with a hemicolectomy.