title: [Relationships between hemostatic variables and delay of surgical repair of femoral neck fracture in elderly patients].
abstract: BACKGROUND
  This study was conducted to clarify the preoperative risk of thrombosis in elderly patients with femoral neck fracture by determining the relationships between hemostatic variables and time from injury until surgical repair.
  
  
  METHODS
  Thirty-four patients over 70 years of age with femoral neck fracture were assigned to the following three groups according to the delay of surgical repair: usual operation group (within 3 days), delayed operation group (from 4 to 7 days) and much delayed operation group (more than 8 days). Hemostatic variables including molecular markers were determined before surgical repair.
  
  
  RESULTS
  Thrombin antithrombin complex level in the usual operation group was significantly increased. The D-dimer level in the usual operation group was significantly higher than that in the delayed operation group, but the levels in the delayed and much delayed operation groups were still higher than the levels in normal subjects.
  
  
  CONCLUSIONS
  These findings suggest that elderly patients with femoral neck fracture may have a relatively high risk for the occurrence of pulmonary thromboembolism receiving anesthesia for surgical repair because of hypercoagulopathy caused by stress response and possible deep vein thrombosis caused by lying on a bed for a long period.
authors.affiliation: Department of Anesthesia, Ebetsu City Hospital, Ebetsu 067-0004.
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Masuda
authors.forename: Asuka
authors.initials: A
authors.lastname: Kita
authors.forename: Kohichi
authors.initials: K
authors.lastname: Ohta
authors.forename: Akiyoshi
authors.initials: A
authors.lastname: Namiki
mesh_terms: D000368:Aged; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D005338:Fibrin Fibrinogen Degradation Products / Q000032:analysis; D006488:Hemostasis, Surgical; D006801:Humans; D008297:Male; D012306:Risk; D013917:Thrombin / Q000032:analysis; D013927:Thrombosis / Q000209:etiology; D013997:Time Factors
chemical_list: D005338:Fibrin Fibrinogen Degradation Products; C036309:fibrin fragment D; D013917:Thrombin