title: Complication rates of 127 surgical procedures performed in rheumatic patients receiving tumor necrosis factor alpha blockers.
abstract: OBJECTIVE
  Tumor necrosis factor (TNF) blockers have been reported to increase the risk of infections, thrombosis, and delayed healing. However, there is little data on the risk of complications after surgery in rheumatic patients receiving TNF blockers. The aim of this study was to assess the complication rate after surgery in such patients, to assess the effect of interrupting TNF blocker therapy, and to identify other potential predictors of complications.
  
  
  METHODS
  This was a systematic, retrospective monocenter study of all patients treated with TNF blockers and who underwent surgery. Complications were recorded and complication rates were compared based on the type of surgery and the timing of the discontinuation of TNF blockers before surgery (above 2 or 5 half-lives). The complication rates were compared with those reported in the literature (orthopaedic procedures in RA patients: 7%, abdominal surgery: 13%).
  
  
  RESULTS
  Between 1997 and 2004, 770 patients were treated with TNF blockers of whom 92 underwent surgery (127 surgical procedures). The most frequent underlying disease was rheumatoid arthritis (77%). Most of the surgical procedures were orthopaedic (85%). The complication rates for orthopaedic procedures and for abdominal procedures were 13% and 43%, respectively. The infection rate after orthopaedic procedures was 6.5%. Interrupting therapy before surgery did not significantly decrease the postoperative complication risk. There were no independent factors predicting complications.
  
  
  CONCLUSIONS
  In daily practice the complication rate after surgery is high in patients treated with TNF blockers. Discontinuing TNF therapy before surgery should be considered, although this study did not clearly demonstrate its role.
authors.affiliation: Paris René Descartes University, Medicine Faculty, AP-HP, Cochin Hospital, Rheumatology B Department, Paris, France.
authors.forename: A
authors.initials: A
authors.lastname: Ruyssen-Witrand
authors.forename: L
authors.initials: L
authors.lastname: Gossec
authors.forename: C
authors.initials: C
authors.lastname: Salliot
authors.forename: M
authors.initials: M
authors.lastname: Luc
authors.forename: M
authors.initials: M
authors.lastname: Duclos
authors.forename: S
authors.initials: S
authors.lastname: Guignard
authors.forename: M
authors.initials: M
authors.lastname: Dougados
mesh_terms: D000068879:Adalimumab; D000328:Adult; D000911:Antibodies, Monoclonal / Q000009:adverse effects / Q000627:therapeutic use; D061067:Antibodies, Monoclonal, Humanized; D018501:Antirheumatic Agents / Q000009:adverse effects* / Q000627:therapeutic use*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D001424:Bacterial Infections / Q000209:etiology; D000068800:Etanercept; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000009:adverse effects / Q000627:therapeutic use; D000069285:Infliximab; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology*; D018124:Receptors, Tumor Necrosis Factor / Q000627:therapeutic use; D012189:Retrospective Studies; D012307:Risk Factors; D013927:Thrombosis / Q000209:etiology; D014409:Tumor Necrosis Factor-alpha / Q000037:antagonists & inhibitors*
chemical_list: D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D018501:Antirheumatic Agents; D007074:Immunoglobulin G; D018124:Receptors, Tumor Necrosis Factor; D014409:Tumor Necrosis Factor-alpha; D000069285:Infliximab; D000068879:Adalimumab; D000068800:Etanercept