title: Orbital complications of acute rhinosinusitis: a new classification.
abstract: Rhinosinusitis is a severe sickness and may have serious complications. Orbital complications happen more often, due to anatomical particularities and are lethal in 5% of patients. They vary from inflammatory signs to proptosis, loss of ocular motility and blindness.
  
  
  OBJECTIVE
  We propose a new classification of acute rhinosinusitis complications.
  
  
  METHODS
  A review of 83 patients with CT scan and clinical reports. Patients were evaluated at HCFMRP-USP between 1995 and 2005 and were diagnosed with complicated rhinosinusitis.
  
  
  RESULTS
  In sixty-six patients, were identified three types of orbital complications: orbital cellulitis (46.9%), subperiosteal abscess (40.9%) and orbital abscess (12.1%). Seventeen were considered as eyelid infections and excluded from this new classification system.
  
  
  CONCLUSIONS
  The existing classifications of orbital complications, as Chandlers, do not consider the orbits anatomical characteristics and became obsolete after the development of the CT scan. This study proposes a new, more objective classification to guide the physician in establishing lines of conduct for each case.
authors: Universidade de São Paulo - Ribeirão Preto Medical School.
authors: Antonio Augusto
authors: AA
authors: Velasco e Cruz
authors: Ricardo Cassiano
authors: RC
authors: Demarco
authors: Fabiana Cardoso Pereira
authors: FC
authors: Valera
authors: Antônio Carlos
authors: AC
authors: dos Santos
authors: Wilma Therezinha
authors: WT
authors: Anselmo-Lima
authors: Regina Maria da Silva
authors: RM
authors: Marquezini
mesh_terms: D000038:Abscess / Q000000981:diagnostic imaging / Q000209:etiology*; D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D002481:Cellulitis / Q000000981:diagnostic imaging / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009916:Orbital Diseases / Q000145:classification / Q000000981:diagnostic imaging / Q000209:etiology*; D012189:Retrospective Studies; D012220:Rhinitis / Q000150:complications* / Q000000981:diagnostic imaging; D012852:Sinusitis / Q000150:complications* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed