title: [Prospective study on the impact of nasal function after Draf III frontal sinus surgery].
abstract: OBJECTIVE
  To evaluate the impact of nasal function after Draf III frontal sinus surgery (Draf III) or the modified endoscopic Lothrop procedure (EMLP).
  
  
  METHODS
  It was a prospective study with self-control. The pre-operative clinical data of 30 patients (from 2010 to 2013, Beijing Tongren Hospital) who underwent Draf III surgery, with the testing results of T&T olfactory testing, acoustic rhinometry and rhinomanometry before and 1 year after operation in these patients were collected in this study. All patients complete visual analogue scale (VAS), a telephone follow-up questionnaire of olfactory function used by Wormald and Lund-Kenndy endoscopy score simultaneously with testings above. Most of 30 patients were chronic rhinosinusitis (CRS) with recurrent nasal polyps or systemic risk factors like asthma and aspirin-intolerance, called refractory rhinosinusitis. SPSS 19.0 software was used to analyze the data.
  
  
  RESULTS
  89.3% (25/28) of these patients improved in nasal obstruction 1 year after operation, and the cure rats was 57.1% (16/28, VAS = 0). The level of improvement in nasal obstruction was significantly correlated with pre-operative nasal obstruction severity (r = 0.909, P < 0.01). 76.7% (23/30) improved in olfactory function 1 year after operation in all 30 patients, and 88.2% improved in patients with nasal polyps (CRSwNP). It was also found that olfactory function 1 year after operation was significantly related to Lund-Kennedy endoscopy scores (r = 0.671, P < 0.01), but was not correlated with VAS scores of nasal obstruction (P = 0.349).
  
  
  CONCLUSIONS
  The Draf III frontal sinus surgery has a significantly positive effect on olfactory and ventilation function post-operatively, especially on refractory rhinosinusitis.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Li
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Shunjiu
authors.initials: S
authors.lastname: Cui
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Ye
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Zhenxiao
authors.initials: Z
authors.lastname: Huang
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
authors.forename: Fei
authors.initials: F
authors.lastname: He
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China. Email: entzhou@263.net.
authors.forename: Bing
authors.initials: B
authors.lastname: Zhou
mesh_terms: D000818:Animals; D001249:Asthma; D002908:Chronic Disease; D004724:Endoscopy; D005626:Frontal Sinus / Q000601:surgery*; D006801:Humans; D015508:Nasal Obstruction; D009298:Nasal Polyps; D010256:Paranasal Sinuses; D011446:Prospective Studies; D051381:Rats; D012189:Retrospective Studies; D025363:Rhinomanometry; D023842:Rhinometry, Acoustic; D012307:Risk Factors; D012852:Sinusitis; D012903:Smell; D016896:Treatment Outcome