title: [Pyogenic psoas abscess: six cases and review of the literature].
abstract: OBJECTIVE
  Psoas abscess is a rare disease in developed countries. Its diagnosis is difficult and any delay could lead to a worsen prognosis. The aim of this study is to determine the best diagnostic and therapeutic practices.
  
  
  METHODS
  A retrospective study of psoas abscess that occurred during six months was performed.
  
  
  RESULTS
  Six cases of secondary psoas abscess are reported. They were associated with spondylodiscitis in three cases, arthritis and gynaecologic infection in the three remaining cases. Anatomic diagnosis was performed by tomodensitometry. Microbiologic diagnosis was obtained by blood culture or direct puncture of the abscess. Antibiotics were associated with percutaneous drainage in two cases, with simple puncture in one case, and with surgery in one case. A local improvement w observed in all cases. The oldest patients presented the worst complications which were not directly caused by the abscess.
  
  
  CONCLUSIONS
  Physicians must be aware of psoas abscess because of their increasing incidence. Despite the fact that digestive pathologies are the main cause of secondary psoas abscess, bone infections, particularly spine infections, should be taken into consideration. Tomodensitometry guided puncture or percutaneous drainage are of diagnostic and therapeutic interest. Infectious samples must be taken before starting antibiotics, which have to be efficient against Gram negative bacillus, anaerobes and Staphylococcus aureus. Surgery must be quickly performed when the primary infection localisation need it, in case of voluminous abscess or when antibiotics and drainage are inefficient.
authors.affiliation: Service des maladies infectieuses et tropicales, hôpital d'enfants, CHU de Dijon, 10, boulevard du Maréchal-de-Lattre-de-Tassigny, 21079 Dijon cedex, France.
authors.forename: S
authors.initials: S
authors.lastname: Audia
authors.forename: B
authors.initials: B
authors.lastname: Martha
authors.forename: M
authors.initials: M
authors.lastname: Grappin
authors.forename: M
authors.initials: M
authors.lastname: Duong
authors.forename: M
authors.initials: M
authors.lastname: Buisson
authors.forename: J-F
authors.initials: JF
authors.lastname: Couaillier
authors.forename: B
authors.initials: B
authors.lastname: Lorcerie
authors.forename: P
authors.initials: P
authors.lastname: Chavanet
authors.forename: H
authors.initials: H
authors.lastname: Portier
authors.forename: L
authors.initials: L
authors.lastname: Piroth
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D001168:Arthritis / Q000150:complications; D001424:Bacterial Infections / Q000150:complications* / Q000175:diagnosis / Q000382:microbiology / Q000628:therapy; D015299:Discitis / Q000150:complications; D004322:Drainage; D005260:Female; D005831:Genital Diseases, Female / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D016659:Psoas Abscess / Q000175:diagnosis / Q000209:etiology* / Q000382:microbiology / Q000628:therapy; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents