title: Balloon dacryocystoplasty: results and factors influencing outcome in 350 patients.
abstract: OBJECTIVE
  To evaluate the initial and long-term results of balloon dacryocystoplasty in the treatment of epiphora caused by obstruction of the lacrimal system with analysis of the procedure's favorable effects.
  
  
  METHODS
  Four hundred thirty eyes of 350 patients with obstructions of the lacrimal system were enrolled. Dacryocystoplasty was performed with use of a balloon catheter and a ball-tipped guide wire. The lesions were categorized according to cause, severity, site of the obstruction, and diameter and inflation time of the balloon. The technical success, initial success (improvement of symptoms after 1 week), and long-term patency rates were calculated. These rates in each group were compared with the chi(2) test and the Kaplan-Meier method.
  
  
  RESULTS
  The overall technical success rate was 95.3%. The overall initial success rate was 57.4%. There was no significant complication except for mild epistaxis in 12%. The 2-month, 1-year, and 5-year patency rates were 48.2%, 39.4%, and 36.9%, respectively. Initial success was influenced by the severity (P =.014) and the site (P <.001) of the obstruction, and the diameter of the balloon (P =.047). Long-term patency was affected by the site of the obstruction (P <.001) and the balloon inflation time (P <.001). Among the 183 initially ineffective and 88 recurrent cases, 62 underwent repeat balloon dacryocystoplasty, and the initial success rate was 38.7%.
  
  
  CONCLUSIONS
  The initial success rate of balloon dacryocystoplasty is relatively low. However, long-term patency can be expected in cases with initial success. Some additional factors also should be considered for better results.
authors: Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
authors: D H
authors: DH
authors: Lee
authors: H Y
authors: HY
authors: Song
authors: H
authors: H
authors: Ahn
authors: Y H
authors: YH
authors: Jin
authors: G Y
authors: GY
authors: Ko
authors: H K
authors: HK
authors: Yoon
authors: K B
authors: KB
authors: Sung
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002404:Catheterization / Q000379:methods*; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007766:Lacrimal Apparatus Diseases / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome