Min Joung Lee1, Sang In Khwarg2, Ho-Kyung Choung3, Namju Kim4. 1. Department of Ophthalmology, Hallym University Sacred Heart Hospital, Anyang. 2. Department of Ophthalmology, Seoul National University Hospital. Electronic address: khwarg@snu.ac.kr. 3. Department of Ophthalmology, Seoul National University Boramae Hospital, Seoul. 4. Department of Ophthalmology, Seoul National University Bundang Hospital, Seoungnam, Korea.
Abstract
OBJECTIVE: To evaluate the incidence and associated factors of functional failure of anatomically patent external dacryocystorhinostomy (DCR). DESIGN: Prospective, nonrandomized case series. PARTICIPANTS: Thirty-four consecutive patients who underwent external DCR at the oculoplasty clinic in the Department of Ophthalmology, Seoul National University Hospital between December 2008 and July 2009. METHODS: All patients underwent external DCR for primary acquired nasolacrimal duct obstruction. The silicone tubes were removed around 6 months after the DCRs, and patients were examined 1 month after tube removal. Anatomical patency was evaluated by a nasal endoscopic dye test and lacrimal syringing test. Tearing symptoms were evaluated using Munk's scoring system. Patients were divided into 2 groups according to the presence of epiphora symptom; a functional success and functional failure group, and the incidence of functional failure were calculated. Potential associated factors were also compared between 2 groups. RESULTS: This study involved 50 eyes of 34 patients, and 8 eyes of 6 patients showed significant epiphora in spite of anatomical patency (16% functional failure). We compared associated factors between 42 functionally successful and 8 functionally failed DCRs. Among variables studied, demographic factors and intraoperative surgical findings were not statistically different between the 2 groups. With respect to intranasal endoscopic findings, the shape of the rhinostomy showed significant differences between the 2 groups (p = 0.03, Fisher's exact test). In the functional failure group, there were no flat shape rhinostomies. Three showed alcove shape rhinostomies, and the other 5 showed cavern shape rhinostomies. CONCLUSIONS: Among anatomically patent DCRs, the incidence of persistent epiphora was 16%. The shape of rhinostomy is a possible associated factor for functional failure after external DCR.
OBJECTIVE: To evaluate the incidence and associated factors of functional failure of anatomically patent external dacryocystorhinostomy (DCR). DESIGN: Prospective, nonrandomized case series. PARTICIPANTS: Thirty-four consecutive patients who underwent external DCR at the oculoplasty clinic in the Department of Ophthalmology, Seoul National University Hospital between December 2008 and July 2009. METHODS: All patients underwent external DCR for primary acquired nasolacrimal duct obstruction. The silicone tubes were removed around 6 months after the DCRs, and patients were examined 1 month after tube removal. Anatomical patency was evaluated by a nasal endoscopic dye test and lacrimal syringing test. Tearing symptoms were evaluated using Munk's scoring system. Patients were divided into 2 groups according to the presence of epiphora symptom; a functional success and functional failure group, and the incidence of functional failure were calculated. Potential associated factors were also compared between 2 groups. RESULTS: This study involved 50 eyes of 34 patients, and 8 eyes of 6 patients showed significant epiphora in spite of anatomical patency (16% functional failure). We compared associated factors between 42 functionally successful and 8 functionally failed DCRs. Among variables studied, demographic factors and intraoperative surgical findings were not statistically different between the 2 groups. With respect to intranasal endoscopic findings, the shape of the rhinostomy showed significant differences between the 2 groups (p = 0.03, Fisher's exact test). In the functional failure group, there were no flat shape rhinostomies. Three showed alcove shape rhinostomies, and the other 5 showed cavern shape rhinostomies. CONCLUSIONS: Among anatomically patent DCRs, the incidence of persistent epiphora was 16%. The shape of rhinostomy is a possible associated factor for functional failure after external DCR.
Authors: Min Joung Lee; Sang In Khwarg; In Hyuk Kim; Jeong Hoon Choi; Youn Joo Choi; Namju Kim; Ho Kyung Choung Journal: Korean J Ophthalmol Date: 2017-08-18
Authors: Joyce Chin; Vincent Lam; Regine Chan; C L Li; Luke Yeung; Antony Law; Alvin Young; Hunter Yuen; Mohammad Javed Ali; Kelvin K L Chong Journal: Sci Rep Date: 2020-01-08 Impact factor: 4.379