Use of direct-acting anticoagulants (DOACs) delays surgery and is associated with increased mortality in hip fracture patients

Author:

Sundet Mads,Sundin Ulf,Godø Aasmund,Sydnes Kristian,Valland Haldor,Sexton Joseph,Martinsen Mette,Paus Maren,Rasmussen Hans Schmidt,Lillegraven Siri

Abstract

Abstract Purpose Treatment with direct-acting oral anticoagulants (DOACs) is increasing among hip-fracture patients, with accompanying safety concerns regarding spinal anesthesia (SA). The aim of this study was to investigate if DOAC use is associated with increased waiting time before surgery, increased mortality, or other adverse events. Methods Registry data on surgically treated hip-fracture cases at a single hospital between 2015 and 2021 were analyzed. Multivariable regression analyses were performed with DOAC-status and choice of anesthesia as exposures, and waiting time, length of stay, transfusion, and mortality as outcomes. Results 2885 cases were included, 467 patients (16%) were using DOACs. DOAC users were older (86.3 vs. 82.2 years, p < 0.001), had a higher Charlson Comorbidity Index (2.1 vs. 1.5, p < 0.001) and had longer median time to surgery than non-DOAC cases (36 h vs 17 h, p < 0.001). General anesthesia (GA) was used in 19.3% of DOAC patients and in 3.0% of non-DOAC patients. DOAC-patients had an increased risk of one-month mortality (Adjusted Odds Ratio (AOR) 1.6 (1.1–2.3)) and one-year mortality (AOR 1.4 (1.1–1.8)). There were no differences in risk of blood transfusion. Patients on DOAC operated under GA had a lower risk of one-year mortality (AOR 0.5 (0.3–0.9)), but a similar one-month mortality to DOAC-patients operated under SA. Conclusion DOAC users had a longer waiting time to surgery, indicating postponement of surgery due to concerns of the safety of SA. The clinical practice should be changed to allow earlier surgery for DOAC patients.

Funder

Helse Sør-Øst RHF

Diakonhjemmet Hospital

Publisher

Springer Science and Business Media LLC

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