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Monocanalicular versus bicanalicular intubation in external dacryocystorhinostomy for primary acquired nasolacrimal duct obstruction.
Orbit 2009; 28(2-3):110-4O

Abstract

PURPOSE

Monocanalicular intubation offers potential advantages over bicanalicular intubation including ease of removal and use of only one canaliculus. Recent reports suggest equal outcomes with both types of tubes for nasolacrimal intubation. This study aimed to evaluate the outcome of monocanalicular intubation during external dacryocystorhinostomy.

METHODS

Fifty-seven lacrimal systems of 54 adults with primary acquired nasolacrimal duct obstruction were prospectively randomized into two cohorts for either bicanalicular intubation (n = 29) or monocanalicular intubation (n = 28) during external dacryocystorhinostomy. All subjects had their symptoms evaluated subjectively according to a modified Munk scale and objectively by the dye disappearance test along with probing and irrigation, pre- and post-operatively. Complete success was defined as a total disappearance of symptoms, partial success as an improvement with some residual symptoms, and failure as an absence of improvement or worsening of symptoms at the last follow-up. Patients with concurrent lid or ocular pathology were excluded.

RESULTS

Bicanalicular subjects had a significantly higher complete success rate (21/29, 72.4%) compared to the monocanalicular group (12/28, 42.9%) (p = 0.03). Complications included 3 slit punctuae and 2 early tube removals with bicanalicular intubation; 6 temporary superficial punctate keratopathies, 1 punctal stenosis and 4 premature tube losses occurred with monocanalicular intubation.

CONCLUSIONS

Patients with monocanalicular intubation during external dacryocystorhinostomy had a significantly lower success rate than patients with bicanalicular intubation in the treatment of nasolacrimal duct obstruction.

Authors+Show Affiliations

Royal Surrey County Hospital, Guildford, UK. drgmsaleh@yahoo.co.ukNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

19839894

Citation

Saleh, George M., et al. "Monocanalicular Versus Bicanalicular Intubation in External Dacryocystorhinostomy for Primary Acquired Nasolacrimal Duct Obstruction." Orbit (Amsterdam, Netherlands), vol. 28, no. 2-3, 2009, pp. 110-4.
Saleh GM, Tossounis CM, Litwin AS, et al. Monocanalicular versus bicanalicular intubation in external dacryocystorhinostomy for primary acquired nasolacrimal duct obstruction. Orbit. 2009;28(2-3):110-4.
Saleh, G. M., Tossounis, C. M., Litwin, A. S., Gauba, V., Samaras, K., & McLean, C. J. (2009). Monocanalicular versus bicanalicular intubation in external dacryocystorhinostomy for primary acquired nasolacrimal duct obstruction. Orbit (Amsterdam, Netherlands), 28(2-3), pp. 110-4.
Saleh GM, et al. Monocanalicular Versus Bicanalicular Intubation in External Dacryocystorhinostomy for Primary Acquired Nasolacrimal Duct Obstruction. Orbit. 2009;28(2-3):110-4. PubMed PMID: 19839894.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Monocanalicular versus bicanalicular intubation in external dacryocystorhinostomy for primary acquired nasolacrimal duct obstruction. AU - Saleh,George M, AU - Tossounis,Charalambos M, AU - Litwin,Andre S, AU - Gauba,Vinod, AU - Samaras,Kostas, AU - McLean,Chris J, PY - 2009/10/21/entrez PY - 2009/10/21/pubmed PY - 2010/1/19/medline SP - 110 EP - 4 JF - Orbit (Amsterdam, Netherlands) JO - Orbit VL - 28 IS - 2-3 N2 - PURPOSE: Monocanalicular intubation offers potential advantages over bicanalicular intubation including ease of removal and use of only one canaliculus. Recent reports suggest equal outcomes with both types of tubes for nasolacrimal intubation. This study aimed to evaluate the outcome of monocanalicular intubation during external dacryocystorhinostomy. METHODS: Fifty-seven lacrimal systems of 54 adults with primary acquired nasolacrimal duct obstruction were prospectively randomized into two cohorts for either bicanalicular intubation (n = 29) or monocanalicular intubation (n = 28) during external dacryocystorhinostomy. All subjects had their symptoms evaluated subjectively according to a modified Munk scale and objectively by the dye disappearance test along with probing and irrigation, pre- and post-operatively. Complete success was defined as a total disappearance of symptoms, partial success as an improvement with some residual symptoms, and failure as an absence of improvement or worsening of symptoms at the last follow-up. Patients with concurrent lid or ocular pathology were excluded. RESULTS: Bicanalicular subjects had a significantly higher complete success rate (21/29, 72.4%) compared to the monocanalicular group (12/28, 42.9%) (p = 0.03). Complications included 3 slit punctuae and 2 early tube removals with bicanalicular intubation; 6 temporary superficial punctate keratopathies, 1 punctal stenosis and 4 premature tube losses occurred with monocanalicular intubation. CONCLUSIONS: Patients with monocanalicular intubation during external dacryocystorhinostomy had a significantly lower success rate than patients with bicanalicular intubation in the treatment of nasolacrimal duct obstruction. SN - 1744-5108 UR - https://www.unboundmedicine.com/medline/citation/19839894/Monocanalicular_versus_bicanalicular_intubation_in_external_dacryocystorhinostomy_for_primary_acquired_nasolacrimal_duct_obstruction_ L2 - http://www.tandfonline.com/doi/full/10.1080/01676830802656711 DB - PRIME DP - Unbound Medicine ER -