title: Topical verapamil in glaucoma filtration surgery.
abstract: OBJECTIVE
  Because of the reported antifibroblastic effect of verapamil, a calcium-channel blocker, we investigated the potential benefit of adjunctive topical verapamil in patients undergoing glaucoma filtration surgery.
  
  
  METHODS
  This prospective, double-masked, randomized study included 56 eyes of 56 consecutive patients with chronic open-angle glaucoma undergoing trabeculectomy (primary or surgical revision of failed trabeculectomy), trabeculectomy combined with cataract surgery, or Molteno drainage device implantation. Postoperatively, the treated eyes received verapamil (0.25%) or one drop of placebo four times a day for 1 month in addition to 1% prednisolone four times a day and corticosteroid-antibiotic ophthalmic ointment at bedtime.
  
  
  RESULTS
  There were no significant differences in preoperative mean intraocular pressure, mean number of medications, and glaucoma severity between the verapamil and placebo groups. There were also no significant differences between the two groups in filtration success rate, mean intraocular pressure, and mean number of medications on postoperative days 1, 4, or 7 and at postoperative months 1, 2, 3, 4, 5, and 6 (P > 0.05).
  
  
  CONCLUSIONS
  There was no significant benefit of adjunctive topical verapamil when it was used after trabeculectomy, trabeculectomy combined with cataract surgery, or Molteno drainage device implantation.
authors.affiliation: Kresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan 48201-1423, USA. dongshin@med.wayne.edu
authors.forename: D H
authors.initials: DH
authors.lastname: Shin
authors.forename: C T
authors.initials: CT
authors.lastname: Kardasis
authors.forename: C
authors.initials: C
authors.lastname: Kim
authors.lastname: Bsee
authors.forename: M S
authors.initials: MS
authors.lastname: Juzych
authors.lastname: Mhsa
authors.forename: B A
authors.initials: BA
authors.lastname: Hughes
authors.forename: N S
authors.initials: NS
authors.lastname: Keole
mesh_terms: D000287:Administration, Topical; D000368:Aged; D002121:Calcium Channel Blockers / Q000008:administration & dosage / Q000627:therapeutic use*; D017024:Chemotherapy, Adjuvant; D002908:Chronic Disease; D004311:Double-Blind Method; D005260:Female; D020327:Glaucoma Drainage Implants; D005902:Glaucoma, Open-Angle / Q000188:drug therapy* / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D009883:Ophthalmic Solutions; D011446:Prospective Studies; D014130:Trabeculectomy; D016896:Treatment Outcome; D014700:Verapamil / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D002121:Calcium Channel Blockers; D009883:Ophthalmic Solutions; D014700:Verapamil