title: Predictive factors for failure of percutaneous drainage of postoperative abscess after abdominal surgery.
abstract: BACKGROUND
  The aims of this study were to assess the efficacy of percutaneous drainage of postoperative abscess after abdominal surgery and to identify factors predictive of failed drainage.
  
  
  METHODS
  Data from 81 patients with postoperative abdominopelvic abscesses treated with percutaneous drainage were reviewed. Percutaneous drainage failure was considered when surgery was needed to control the sepsis. Predictive variables were sought using univariate and multivariate analyses with logistic regression models.
  
  
  RESULTS
  Successful drainage requiring 1 (n = 46) or 2 (n = 17) procedures was observed in 63 patients (78%; 95% confidence interval, 67%-86%). Surgery was needed in 18 patients (22%; 95% confidence interval, 14%-38%). Residual collection after a first percutaneous drainage was the single predictive factor for failed drainage on univariate and multivariate analyses (P = .0275).
  
  
  CONCLUSIONS
  Percutaneous imaging-guided drainage is a feasible and effective method for the treatment of abdominopelvic abscess, with a success rate of 78%. Residual collection is an independent predictor of unfavorable outcome after percutaneous drainage.
authors.affiliation: Surgical Oncologic & Digestive Unit, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Paris, France.
authors.forename: Fulgence
authors.initials: F
authors.lastname: Kassi
authors.affiliation: Department of Body & Interventional Imaging, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Université Diderot-Paris 7, 75475 Paris Cedex 10, France; INSERM U965, Paris, France. Electronic address: anthony.dohan@lrb.aphp.fr.
authors.forename: Anthony
authors.initials: A
authors.lastname: Dohan
authors.affiliation: Department of Body & Interventional Imaging, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Université Diderot-Paris 7, 75475 Paris Cedex 10, France; INSERM U965, Paris, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Soyer
authors.affiliation: INSERM U965, Paris, France; Clinical Research Unit, Hôpital Fernand-Widal, Assistance Publique-Hôpitaux de Paris, Université Diderot-Paris 7, Paris, France.
authors.forename: Eric
authors.initials: E
authors.lastname: Vicaut
authors.affiliation: Department of Body & Interventional Imaging, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Université Diderot-Paris 7, 75475 Paris Cedex 10, France.
authors.forename: Mourad
authors.initials: M
authors.lastname: Boudiaf
authors.affiliation: Surgical Oncologic & Digestive Unit, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Paris, France.
authors.forename: Patrice
authors.initials: P
authors.lastname: Valleur
authors.affiliation: Surgical Oncologic & Digestive Unit, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Paris, France; INSERM U965, Paris, France.
authors.forename: Marc
authors.initials: M
authors.lastname: Pocard
mesh_terms: D018784:Abdominal Abscess / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003287:Contrast Media; D013505:Digestive System Surgical Procedures; D004322:Drainage / Q000379:methods*; D005260:Female; D006801:Humans; D007479:Iopamidol / Q000031:analogs & derivatives; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery*; D011237:Predictive Value of Tests; D015641:Radiography, Interventional; D012189:Retrospective Studies; D012307:Risk Factors; D014057:Tomography, X-Ray Computed; D017211:Treatment Failure; D014283:Triiodobenzoic Acids
chemical_list: D003287:Contrast Media; D014283:Triiodobenzoic Acids; C057937:iomeprol; D007479:Iopamidol; C054871:ioversol
keywords: Imaging guidance; Percutaneous drainage; Postoperative abscess