Chronic anticoagulation therapy and acute hip trauma

Abstract

Regardless of the association between hip fracture surgery and mortality, morbidity and bleeding risks, there are still significant contradictions in various published articles concerning hip fracture surgery outcomes when patients are prescribed anticoagulant medication. The primary objective of this study was to investigate if patients prescribed anticoagulants experienced delayed surgery when compared to non-users. The secondary goal was to investigate if patients prescribed anticoagulants underwent an extended hospital stay and complications such as increased bleeding, mortality and a higher rate of comorbidities when compared to non-users. Data from proximal hip fracture patients were prospectively collected at a level I university trauma center. From 1 January, 2020, through 1 January, 2021, 519 eligible patients were identified. Anticoagulant medication upon admission, time prior to surgery, hospitalized days, 30-day mortality rates, 1-year mortality, blood transfusion requirement and various comorbidities were noted. 222 of the 519 hip fracture patients were prescribed anticoagulants. Of the 222 patients, 75% were females and 25% were males. In total, 46% required a blood transfusion, with no significant differences between the anticoagulated and non-anticoagulated patients. 50% of the anticoagulated group and 42% of the control group required perioperative blood transfusion. Neither the 30-day nor the 1-year mortality rate showed statistically significant differences between the groups. However, the time to surgery and the length of hospital stay was significantly longer in the anticoagulated group. Comorbidities were found in 87% of the patients: in 95% of the anticoagulated group and in 81% of the non-anticoagulated group. Patients prescribed anticoagulants at the time of hip fracture experienced delayed surgery, longer hospital stays and more comorbidities when compared to patients not on anticoagulants. Neither a blood transfusion requirement, 30-day mortality rate nor a 1-year mortality rate showed no significant difference between the two cohorts.