| Comparison of Results between Two Methods in Removal of Lacrimal Sac Medial Wall in Endoscopic Dacryocystorhinostomy. |
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In Kyung Oh, Sang Hyoung Cho, Tae Soo Lee |
1Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea. tsoooo@hanmail.net
2Department of Ophthalmology, Konyang University College of Medicine, Daejeon, Korea. |
| 누낭내벽 제거방법에 따른 비내시경적 누낭비강문합술의 수술 결과 비교 |
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오인경 ( In Kyung Oh ) , 조상형 ( Sang Hyoung Cho ) , 이태수 ( Tae Soo Lee ) |
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| Abstract |
PURPOSE
To compare the surgical results between Nd: YAG laser and sickle knife, as instruments for removal of the medial wall of the lacrimal sac at the time of endoscopic dacryocystorhinostomy (DCR). METHODS: From June 2001 to January 2002, 70 patients with nasolacrimal duct obstruction were arbitrarily divided into two groups. One group underwent endoscopic DCR using sickle knife (sickle knife group) and the other group underwent endoscopic DCR using Nd: YAG laser (laser group). We evaluated the duration of wound healing, complications, and success rates. RESULTS: The duration of wound healing in the sickle knife and laser groups was 3.6 +/- 0.6 weeks and 4.0 +/- 0.3 weeks, respectively (p=0.09). Granuloma formation was statistically different between the sickle knife (45.7%, 16/35) and laser (22.9%, 8/35) groups (p=0.04). There were no significant statistical differences in the membranous obstruction rate, common canalicular obstruction rate, or synechiae formation rate between the two groups. The success rate at postoperative 1 year was 82.9% (29/35) in the sickle knife group and 88.6% (31/35) in the laser group (p=0.49). CONCLUSIONS: The laser group obtained the higher success rate and lower incidence of granuloma formation at the internal ostium than the sickle knife group. Wound healing seemed to be faster in the sickle knife group but showed higher granuloma formation in the sickle knife group. This might suggest that the instrument used in the removal of the medial wall of the lacrimal sac could influence the duration of wound healing as well as granuloma formation at the internal ostium. |
| Key Words:
Endoscopic dacryocystorhinostomy;Nd: YAG Laser;Sickle knife |
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