J Korean Ophthalmol Soc.  2012 Jun;53(6):743-748.

Clinical Application of Polyether Ester Urethane in Endonasal Dacryocystorhinostomy

• Ahn SM
• Kim SS

Abstract

PURPOSE
To evaluate the clinical effect of intraoperative application of polyether ester urethane (Nasopore(R)) in endonasal dacryocystorhinostomy.
METHODS
Endonasal dacryocystorhinostomy was performed on 77 eyes diagnosed with nasolacrimal duct obstruction between January 2010 and February 2011. Nasopore(R) was applied to the newly-formed internal lacrimal opening in the experimental group (41 eyes), and vaseline gauze was applied in the control group (36 eyes). For the evaluation of clinical effects regarding postoperative adhesion and stenosis of the internal lacrimal opening, subjective symptom improvement, lacrimal irrigation tests, and endoscopic examinations were performed at 1 week, 2 weeks, 1 month, 3 months, and 6 months, postoperatively.
RESULTS
In subjective symptom improvement and lacrimal irrigation tests, differences between the 2 groups were not statistically significant. In endoscopic findings, the Nasopore(R) group showed significantly lower severity of adhesion and stenosis of the internal lacrimal opening at 1 week, 2 weeks, and 1 month after operation (p < 0.05).
CONCLUSIONS
Application of the Nasopore(R) may effectively reduce initial postoperative adhesion or stenosis of the internal lacrimal opening after endonasal dacryocystorhinostomy and has usefulness as an auxiliary method.

Keyword

Biodegradable; Endonasal dacryocystorhinostomy; Nasopore; Polyether ester urethane

MeSH Terms

Constriction, Pathologic
Dacryocystorhinostomy
Eye
Nasolacrimal Duct
Petrolatum
Urethane
Petrolatum
Urethane

Figure

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  Figure 1 Nasopore® that absorbed distilled water. (A) After 24 hours. (B) After 48 hours.

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  Figure 2 Measurement of internal lacrimal opening size. The authors regards an average value of long diameter and short diameter as internal lacrimal opening size. Note the thick lines on the picture.

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  Figure 3 The chart presents the success rate according to endoscopic pictures on each postoperative day.

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