Safe and effective anticoagulation use: Case studies in anticoagulation stewardship.

Anticoagulant use is prevalent and associated with significant potential for harm. Anticoagulation stewardship practice has emerged to address care gaps and promote safe, effective, and cost-conscious anticoagulation use across health care systems. Here we present 4 patient cases describing common challenges in anticoagulation management: inappropriate dosing of direct oral anticoagulants (DOACs), the diagnosis and management of heparin-induced thrombocytopenia (HIT), periprocedural anticoagulation management, and heavy menstrual bleeding on anticoagulation.

Management of abnormal uterine bleeding on anticoagulation: the patient-clinician perspective.

Bleeding is a well-recognized side effect of anticoagulant therapy, which is used to treat venous thromboembolism (VTE) in individuals of all ages, including those of female sex, who commonly experience VTE as a complication of hormonal therapies and/or pregnancy. Heavy menstrual bleeding (HMB) is also extremely common in reproductive-aged individuals of female sex. Despite these overlapping situations, relatively little attention has been paid to the impact of anticoagulant-associated HMB on treatment strategies and the patient experience.

In adults with cancer and VTE, DOACs were noninferior to LMWH for recurrent, nonfatal VTE at 6 mo.

Schrag D, Uno H, Rosovsky R, et al; CANVAS Investigators. JAMA. 2023;329:1924-1933.

Abnormal uterine bleeding in users of rivaroxaban and apixaban.

Up to two-thirds of menstruating women experience abnormal uterine bleeding (AUB) when treated with oral anticoagulants. However, the true prevalence of AUB for specific agents remains uncertain, as many of these episodes, while interfering significantly with quality of life and overall health, are not captured by definitions of major bleeding (MB) or clinically relevant nonmajor bleeding (CRNMB) used in clinical trials. A 2017 systematic review determined that women taking rivaroxaban, but not edoxaban or apixaban, had a twofold higher risk of AUB than women taking warfarin.

Heavy menstrual bleeding in women on oral anticoagulants.

Background: Although heavy menstrual bleeding (HMB) is a known complication of anticoagulant therapy, rates of HMB in users of the direct oral anticoagulants (OACs) apixaban and rivaroxaban are largely unknown.

Methods: We performed a retrospective cohort study of menstruating women prescribed rivaroxaban, apixaban and warfarin over a six-year period (2012-2018). The primary outcome was HMB requiring medical or surgical intervention.

Diagnosis and management of postpartum ovarian vein thrombosis.

A 26-year-old woman experienced persistent fever (39.5°C), chills, and right-lower-quadrant tenderness 3 days after caesarean delivery. A computed tomography (CT) scan of the abdomen and pelvis with contrast revealed enlargement of her right ovarian vein with an associated intraluminal filling defect.

Hematopoietic Cell Transplantation for Myelofibrosis: the Dynamic International Prognostic Scoring System Plus Risk Predicts Post-Transplant Outcomes.

Hematopoietic cell transplantation (HCT) provides potentially curative treatment for patients with myelofibrosis (MF). HCT outcomes are associated with the Dynamic International Prognostic Scoring System (DIPSS) risk scores. In the present study we analyzed results in 233 patients to determine if the DIPSS plus classification, which adds cytogenetics, thrombocytopenia, and RBC transfusion dependence as risk factors, would better predict post-HCT outcomes than the original DIPSS.