Clinical Application of Polyether Ester Urethane in Endonasal Dacryocystorhinostomy

Seong Min Ahn; Sang Soo Kim

doi:10.3341/jkos.2012.53.6.743

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Ahn and Kim: Clinical Application of Polyether Ester Urethane in Endonasal Dacryocystorhinostomy

Original Article

Journal of the Korean Ophthalmological Society

Journal of the Korean Ophthalmological Society 2012; 53(6): 743-748.

Published online: 16 June 2012

DOI: https://doi.org/10.3341/jkos.2012.53.6.743

Clinical Application of Polyether Ester Urethane in Endonasal Dacryocystorhinostomy

Seong Min Ahn, MD, Sang Soo Kim, MD

Department of Ophthalmology, Maryknoll Medical Center, Busan, Korea.

Address reprint requests to Sang Soo Kim, MD. Department of Ophthalmology, Maryknoll Medical Center, #121 Junggu-ro, Jung-gu, Busan 600-730, Korea. Tel: 82-51-461-2469, Fax: 82-51-462-3534, eyerheu@hanafos.com

Received 4 October 2011 Accepted 7 April 2012

Abstract

Purpose

To evaluate the clinical effect of intraoperative application of polyether ester urethane (Nasopore®) in endonasal dacryocystorhinostomy.

Methods

Endonasal dacryocystorhinostomy was performed on 77 eyes diagnosed with nasolacrimal duct obstruction between January 2010 and February 2011. Nasopore® 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® 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® may effectively reduce initial postoperative adhesion or stenosis of the internal lacrimal opening after endonasal dacryocystorhinostomy and has usefulness as an auxiliary method.

Keywords: Biodegradable, Endonasal dacryocystorhinostomy, Nasopore, Polyether ester urethane

Figures and Tables

Figure 1

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

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.

Figure 3

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

Table 1

Munk's score of epiphora

Table 2

Demographics of patients

Data are presented as mean ± SD (minimum-maximum) or number.

Table 3

The success rate according to symptom, lacrimal irrigation or endoscopic pictures, respectively

Values are presented as n (%).

POD = postoperative day.

^*Statistic analysis by Fischer's exact test; ^†It means the rate of cases that succeeded according to symptom, lacrimal irrigation and endoscopic pictures at postoperative 6 months.

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