Endoscopic revision of external dacryocystorhinostomy.
OBJECTIVE
To observe the benefit of endoscopic surgery for the treatment of lacrimal duct obstruction in revisional surgeries after external dacryocystorhinostomy.


METHODS
Retrospective nonrandomized study. Eleven cases of recurrent lacrimal duct obstruction after external dacryocystorhinostomy were submitted to endoscopic dacryocystorhinostomy.


RESULTS
The rate of success after revisional surgery was 90.9%. The major causes of failure of the external approach were the presence of granulation tissue, septal deviations and synechiae near the opening of the fistula, inadequate removal of the bony wall adjuvant the lacrimal sac, technical error in the localization of the lacrimal sac, and excessive perioperative bleeding that impaired the surgical field.


CONCLUSIONS
Endoscopic dacryocystorhinostomy in revisional cases proved to be a safe technique of low morbidity, permitting effective resolution of the lacrimal obstructions.


CONCLUSIONS
Endoscopic surgery allows greater visibility of the lacrimal sac and its neighbor anatomic alterations and leads to better results.
Demarco
Ricardo
R
Department of Ophthalmology, Otorhinolaryngology-Head and Neck Surgery, University Hospital, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil-USP.
Strose
Alex
A
Araújo
Marcos
M
Valera
Fabiana Cardoso Pereira
FC
Moribe
Iracema
I
Anselmo-Lima
Wilma Terezinha
WT
D000293:Adolescent; D000328:Adult; D002648:Child; D003607:Dacryocystitis / Q000601:surgery*; D003608:Dacryocystorhinostomy / Q000379:methods*; D004724:Endoscopy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012086:Reoperation / Q000379:methods; D012189:Retrospective Studies; D016896:Treatment Outcome