title: [Regularity of nasal mucous transitional course of different sinuses after functional endoscopic sinus surgery].
abstract: OBJECTIVE
  To explore the time regularity of nasal mucous transitional course of different sinuses after functional endoscopic sinus surgery.
  
  
  METHODS
  Seventy-seven chronic rhinosinusitis patients following functional endoscopic sinus surgery were prospectively collected. The endoscopic appearances of different sinuses were respectively evaluated with Lund-Kennedy scoring system in 2 weeks, 1, 2, 3, 6, 9 months, and 12 months postoperatively. Then the endoscopic scores and epithelization proportions of different sinuses in different stages were analyzed and compared.
  
  
  RESULTS
  Of 77 patients, 154 maxillary sinuses, 154 ethmoidal sinuses, 138 frontal sinuses, and 129 sphenoidal sinuses were scored endoscopically and analyzed statistically. In the 2 weeks after operation, the mucosa scores of sphenoidal sinus (3.5 ± 1.5), ethmoidal sinus (3.6 ± 1.4), maxillary sinus (3.7 ± 1.5), and frontal sinus (3.8 ± 1.5) showed no significant differences by no parameter tests (χ(2) = 1.674, P = 0.643). In the 2, 3, 6, and 9 months postoperatively, the assessment of four kinds of sinuses showed separate transitional tendency and the descending deflection points of scores and ascending peaks of epithelization proportions gradually emerged. In the 12 months postoperatively, by the above statistical methods, the mucosal scores (Z = -3.417, P = 0.001) and epithelization proportions (χ(2) = 4.313, P = 0.038) of sphenoidal sinus were superior to that of ethmoidal sinus, the mucosal scores (Z = -2.218, P = 0.027) and epithelization proportions (χ(2) = 4.292, P = 0.038) of ethmoidal sinus were superior to that of maxillary sinus, and the mucosal scores (Z = -2.244,P = 0.025) and epithelization proportions (χ(2) = 4.100, P = 0.043) of maxillary sinus were superior to that of frontal sinus.
  
  
  CONCLUSIONS
  The transitional course of different sinus mucosa after functional endoscopic sinus surgery shows significant time difference. The time sequencing to complete epithelization of sinuses is successively sphenoidal sinus, ethmoidal sinus, maxillary sinus, and frontal sinus.
authors.affiliation: Otorhinolaryngology Hospital and Institute of First Affiliated Hospital of SUN Yat-sen University, Guangzhou 510080, China.
authors.forename: Ke-jun
authors.initials: KJ
authors.lastname: Zuo
authors.forename: Hua-bin
authors.initials: HB
authors.lastname: Li
authors.forename: Jian-bo
authors.initials: JB
authors.lastname: Shi
authors.forename: Geng
authors.initials: G
authors.lastname: Xu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D004724:Endoscopy; D005260:Female; D006801:Humans; D008875:Middle Aged; D009297:Nasal Mucosa; D011446:Prospective Studies; D012852:Sinusitis / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult