title: Elevated D-dimer and fibrinogen levels in serum of preoperative bone fracture patients.
abstract: The changes of coagulation parameters in preoperative fracture patients reflect the coagulation status before surgery. We did retrospective assessment of preoperative fracture patients (n = 113) admitted to the hospital between September 2013 and September 2014. The control group were selected from healthy adults (n = 113) with matched age and gender. Platelet, PT INR, APTT, fibrinogen (FIB) and D-dimer values were collected and analyzed. PT INR level was 1.043 ± 0.119, APTT was 31.91 ± 7.56 s, FIB was 320.6 ± 71.8 mg/dl and D-dimer was 1283 ± 1582 ng/ml for the fracture patients. For the control group, PT INR level was 0.9976 ± 0.0602, APTT was 33.22 ± 2.55 s, FIB was 277.3 ± 44.7 mg/dl and D-dimer was 97.53 ± 63.90 ng/ml. Meanwhile, D-dimer levels of different sites of fractures were also measured: Femora 2448 ± 1961 ng/ml; Humerus 792.4 ± 691.2 ng/ml; Ulna/Radius 619.4 ± 843.7 ng/ml; Vertebra 647.7 ± 787.1 ng/ml; Tibia/Fibula 496.3 ± 268.8 ng/ml; Clavicle 260.9 ± 170.9 ng/ml; Ankle 415.4 ± 286.6 ng/ml. To conclude, D-dimer and fibrinogen levels get higher in preoperative fracture patients than controls. Besides, D-dimer levels are significantly different among different locations of fractures, and our data revealed that D-dimer levels of Femora fracture were higher than other sites.
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Chen
authors.initials: C
authors.lastname: Liu
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Song
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Jingzhong
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Qinzhu
authors.initials: Q
authors.lastname: Xu
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Ning
authors.initials: N
authors.lastname: Liu
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Songsong
authors.initials: S
authors.lastname: Lu
authors.affiliation: Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044 China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
keywords: APTT; D-dimer; Fibrinogen; Fracture; PT INR