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[Impact of lacrimal obstruction type on the efficacy of probing for congenital nasolacrimal duct obstruction].
Zhonghua Yi Xue Za Zhi. 2012 Sep 18; 92(35):2477-80.ZY

Abstract

OBJECTIVE

To explore the impact of lacrimal obstruction type on the efficacy of lacrimal probing in the treatment of congenital nasolacrimal duct obstruction.

METHODS

We conducted a retrospective study in which 872 eyes of 741 children with congenital nasolacrimal duct obstruction underwent nasolacrimal duct probing under superficial anesthesia. Two types of obstructions were encountered during probing, i.e. simple and complex. They were divided into early (4 - 12 months) and late (1 - 4 years) groups based upon the age at the time of initial probing. Those refractory to the first probing underwent a second probing 4 weeks later. The main observation criterion was the success rate of probing.

RESULTS

The success rate was 90.0% in early group versus 70.4% in late group (χ(2) = 38.527, P < 0.01). No significant difference existed in the cure rate of simple or complex obstruction between two groups (χ(2) simple = 0.054, P = 0.815, χ(2) complex = 1.705, P = 0.192). The proportion of simple obstruction was 94.4% in early group versus 62.2% in late group. Difference was statistically significant (χ(2) = 125.471, P < 0.01). The success rate of a second probing of simple obstruction was 61.9% in early group versus 68.2% in late group (χ(2) = 0.324, P = 0.569). The success rate of a second probing of complex obstruction was 19.2% in early group versus 5.7% in late group (Fisher's exact test, P = 0.125). For either group, the success rate of a second probing of simple obstruction was higher than that of complex obstruction (χ(2) early group = 16.100, P < 0.01; χ(2) late group = 25.186, P < 0.01).

CONCLUSION

Unsuccessful probing may result from the selection of complex obstructions. Probing should remain the first-line treatment in children above 1 year of age. The success rate with a second probing was significantly lower in patients of complex obstruction. Other surgical interventions, such as silicone tube intubation or balloon dacryocystoplasty, should be recommended instead of repeated probing for the patients of complex obstruction if an initial probing fails.

Authors+Show Affiliations

Department of Ophthalmology, Guangzhou Women & Children's Medical Center, Guangzhou, China. zhaowei7163@yahoo.com.cnNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article

Language

chi

PubMed ID

23158713

Citation

Zhao, Wei, et al. "[Impact of Lacrimal Obstruction Type On the Efficacy of Probing for Congenital Nasolacrimal Duct Obstruction]." Zhonghua Yi Xue Za Zhi, vol. 92, no. 35, 2012, pp. 2477-80.
Zhao W, Chen LL, Xiang DM. [Impact of lacrimal obstruction type on the efficacy of probing for congenital nasolacrimal duct obstruction]. Zhonghua Yi Xue Za Zhi. 2012;92(35):2477-80.
Zhao, W., Chen, L. L., & Xiang, D. M. (2012). [Impact of lacrimal obstruction type on the efficacy of probing for congenital nasolacrimal duct obstruction]. Zhonghua Yi Xue Za Zhi, 92(35), 2477-80.
Zhao W, Chen LL, Xiang DM. [Impact of Lacrimal Obstruction Type On the Efficacy of Probing for Congenital Nasolacrimal Duct Obstruction]. Zhonghua Yi Xue Za Zhi. 2012 Sep 18;92(35):2477-80. PubMed PMID: 23158713.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Impact of lacrimal obstruction type on the efficacy of probing for congenital nasolacrimal duct obstruction]. AU - Zhao,Wei, AU - Chen,Li-li, AU - Xiang,Dao-man, PY - 2012/11/20/entrez PY - 2012/11/20/pubmed PY - 2013/9/10/medline SP - 2477 EP - 80 JF - Zhonghua yi xue za zhi JO - Zhonghua Yi Xue Za Zhi VL - 92 IS - 35 N2 - OBJECTIVE: To explore the impact of lacrimal obstruction type on the efficacy of lacrimal probing in the treatment of congenital nasolacrimal duct obstruction. METHODS: We conducted a retrospective study in which 872 eyes of 741 children with congenital nasolacrimal duct obstruction underwent nasolacrimal duct probing under superficial anesthesia. Two types of obstructions were encountered during probing, i.e. simple and complex. They were divided into early (4 - 12 months) and late (1 - 4 years) groups based upon the age at the time of initial probing. Those refractory to the first probing underwent a second probing 4 weeks later. The main observation criterion was the success rate of probing. RESULTS: The success rate was 90.0% in early group versus 70.4% in late group (χ(2) = 38.527, P < 0.01). No significant difference existed in the cure rate of simple or complex obstruction between two groups (χ(2) simple = 0.054, P = 0.815, χ(2) complex = 1.705, P = 0.192). The proportion of simple obstruction was 94.4% in early group versus 62.2% in late group. Difference was statistically significant (χ(2) = 125.471, P < 0.01). The success rate of a second probing of simple obstruction was 61.9% in early group versus 68.2% in late group (χ(2) = 0.324, P = 0.569). The success rate of a second probing of complex obstruction was 19.2% in early group versus 5.7% in late group (Fisher's exact test, P = 0.125). For either group, the success rate of a second probing of simple obstruction was higher than that of complex obstruction (χ(2) early group = 16.100, P < 0.01; χ(2) late group = 25.186, P < 0.01). CONCLUSION: Unsuccessful probing may result from the selection of complex obstructions. Probing should remain the first-line treatment in children above 1 year of age. The success rate with a second probing was significantly lower in patients of complex obstruction. Other surgical interventions, such as silicone tube intubation or balloon dacryocystoplasty, should be recommended instead of repeated probing for the patients of complex obstruction if an initial probing fails. SN - 0376-2491 UR - https://www.unboundmedicine.com/medline/citation/23158713/[Impact_of_lacrimal_obstruction_type_on_the_efficacy_of_probing_for_congenital_nasolacrimal_duct_obstruction]_ L2 - http://journal.yiigle.com/LinkIn.do?linkin_type=pubmed&amp;issn=0376-2491&amp;year=2012&amp;vol=92&amp;issue=35&amp;fpage=2477 DB - PRIME DP - Unbound Medicine ER -