• Caroline Hoerlyck, Terence Ong, Merete Gregersen, Else Marie Damsgaard, Lars Borris, Jac Kie Chia, Ying Yi Wendy Yap, Namal Weerasuriya, and Opinder Sahota.
• Aarhus University, Aarhus, Denmark.
• Arch Orthop Trauma Surg. 2020 Feb 1; 140 (2): 171-176.

IntroductionThe management of patients with a hip fracture is affected by the use of oral anticoagulants. A cross-sectional analysis was undertaken to investigate health outcome differences in those anticoagulated compared to those not anticoagulated.MethodsPatients aged 50 years and over presenting to a large university hospital with hip fractures were identified from the service registry. Patient characteristics and health outcomes between those not anticoagulated were compared with those anticoagulated (warfarin and direct oral anticoagulants, DOAC).Results200/2307 (9%) patients were anticoagulated. 84% were on warfarin, and the rest a DOAC. Compared to those anticoagulated, there was a higher prevalence of dementia (25% vs. 18%, p = 0.02) and a lower prevalence of cardiovascular disease (54% vs. 78%, p < 0.01), atrial fibrillation (10% vs. 82%, p < 0.01), and polypharmacy (55% vs. 76%, p < 0.01). Renal function was lower in the anticoagulated group. Time to operation for those not anticoagulated and anticoagulated was a median (IQR) of 25 (15) and 27 (18) hours. There was no difference in blood transfusion and hospital mortality. Postoperative complications were similar except a higher rate of renal failure (14% vs. 19%, p = 0.04) and heart failure (1% vs. 5%, p < 0.01), and a longer length of stay [median (IQR): 14 (10) vs. 16 (12) days] in the anticoagulated group. This was no longer significant after adjustment of confounders.ConclusionThere was no statistically significant difference in health outcomes between those anticoagulated and those not after adjusting for patient characteristics. It was feasible to avoid significant delay in hip fracture surgery in those anticoagulated.

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