title: [Endoscopic transnasal orbital balanced decompression technique for severe Graves' orbitopathy].
abstract: OBJECTIVE
  To determine the efficacy of endoscopic transnasal orbital balanced decompression technique for the treatment of severe Graves' orbitopathy.
  
  
  METHODS
  Six cases (12 eyes) of severe Graves'orbitopathy were included in this study. All patients were undergone endoscopic transnasal orbital balanced decompression technique (orbital inner and lower wall decompression+ lateral orbital decompression) for severe Graves'orbitopathy and serious affecting visual function or appearance.
  
  
  RESULTS
  The follow-up ranged from 12 months to 2 years and 4 months. Postoperatively, the visual acuity markly improved from 0.23 ± 0.08 to 0.48 ± 0.13 (t=-5.749, P<0.001). Proptosis measured by exophthalmoter distictly reduced from (22.08 ± 1.08) mm to (15.67 ± 1.44) mm (t=17.924, P< 0.001). The palpebral fissures obviously reduced from (12.03 ± 0.91) mm to (8.62 ± 0.75) mm (t=9.600, P< 0.001), and orbital volume evidently increased from (26.84 ± 0.62) cm³ to (31.56 ± 1.10) cm³ (t=-16.567, P<0.001). Compared with the preoperative result, the orbital pressure was significantly decreased after operation (t=-6.759 (Y=100 g), t=-11.850 (Y=200 g), t=-6.189 (Y=300 g), P<0.001). Diplopia was appeared in 3 cases, and disappeared 3 to 5 months after surgery.
  
  
  CONCLUSIONS
  Endoscopic transnasal orbital balanced decompression technique is effective for the treatment of severe Graves'orbitopathy.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, the First Central Clinical College of Tianjin Medical University, Tianjin 300192, China; Email: wjsent@sina.com.
authors.forename: Wenjie
authors.initials: W
authors.lastname: Shi
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, the First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.
authors.forename: Fengyuan
authors.initials: F
authors.lastname: Sun
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, the First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.
authors.forename: Dongrun
authors.initials: D
authors.lastname: Tang
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, the First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.
authors.forename: Yana
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, the First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.
authors.forename: Tianming
authors.initials: T
authors.lastname: Jian
mesh_terms: D019299:Decompression, Surgical / Q000379:methods*; D004724:Endoscopy; D005094:Exophthalmos / Q000473:pathology; D049970:Graves Ophthalmopathy / Q000601:surgery*; D006801:Humans; D009915:Orbit / Q000601:surgery*; D011184:Postoperative Period; D014792:Visual Acuity