title: [Changes in cytokines during perioperative period of hip arthroplasty in patients older than 80 years of age].
abstract: BACKGROUND
  Elevations of plasma inflammatory cytokines are related to the surgical intervention. We have examined the circulating interleukin 6, 8 (IL-6, IL-8) and CRP responses in patients older than 80 years during orthopedic hip arthroplasty.
  
  
  METHODS
  After taking the signed informed consent, 8 patients were enrolled in this study. All patients received standard spinal anesthesia combined with epidural catheterization. Samples were collected just before and after the surgery, and on 1st, 2nd and 7th day after the operation.
  
  
  RESULTS
  Plasma IL-6 levels showed a significant increase on the day after surgery (5.6 +/- 3.7 vs. 52.2 +/- 24.1 pg.ml-1, mean +/- SD, P < 0.05), whereas although the levels of IL-8, increased (minimum 7.9 +/- 3.2 to maximum 70.3 +/- 80.2 pg.ml-1, mean +/- SD), the change was not significant. CRP levels were slightly elevated in the preoperative examination (2.8 +/- 3.5 mg.dl-1) and further increased on the 2nd day of surgery (8.3 +/- 5.4 mg.dl-1), but returned to a normal level on the 7th day.
  
  
  CONCLUSIONS
  From the viewpoint of cytokines, this study showed that, although IL-8 level did not return to the preoperative value, the surgical stress of orthopedic hip arthroplasty in patients older than 80 years was almost of the same level as reported previously.
authors.affiliation: Department of Anesthesia, National Hospital Kure Medical Center, Kure 737-0023.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Hashimoto
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Hiruta
authors.forename: Yuko
authors.initials: Y
authors.lastname: Yamada
authors.forename: Manami
authors.initials: M
authors.lastname: Yamanaka
authors.forename: Junken
authors.initials: J
authors.lastname: Koh
authors.forename: Masahiko
authors.initials: M
authors.lastname: Miyata
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000767:Anesthesia, Epidural; D000775:Anesthesia, Spinal; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D015415:Biomarkers / Q000097:blood; D002097:C-Reactive Protein / Q000032:analysis; D016207:Cytokines / Q000097:blood*; D006801:Humans; D018836:Inflammation Mediators / Q000097:blood*; D015850:Interleukin-6 / Q000097:blood; D016209:Interleukin-8 / Q000097:blood; D013312:Stress, Physiological / Q000175:diagnosis* / Q000209:etiology
chemical_list: D015415:Biomarkers; D016207:Cytokines; D018836:Inflammation Mediators; D015850:Interleukin-6; D016209:Interleukin-8; D002097:C-Reactive Protein