군날개 재발에 있어서 자가윤부결막이식술 단독 및 추가 윤부절개술의 장기 결과
Long-term Outcomes of Conjunctivo-limbal Autograft Alone and Additional Widening of Limbal Incision in Recurrent Pterygia
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목적: 군날개 수술에서 자가윤부결막이식술 시 재발을 억제하기 위하여 시행한 추가 윤부절개술의 임상성적을 보고하고자 한다. 대상과 방법: 총 95안의 원발성군날개와 12안의 재발성 군날개 환자를 대상으로 자가윤부결막이식술 단독 및 추가 윤부절개술을 시행한 두 군으로 나누어 후향적 분석을 시행하였다. 추가 윤부절개술은 군날개를 제거한 각막윤부의 상부 및 하부경계에 각각 1 mm의 추가 절개를 하는 방법으로 시행하였다. 결과는 자가윤부결막이식술 단독 시행 39안, 추가 윤부절개술 시행 68안을 대상으로 비교 분석하였다. 결과: 전체 환자의 술 후 경과관찰 기간은 29.6 ± 10.5개월이었으며, 자가윤부결막이식술 단독 시행 군에서는 27.4 ± 11.5개월, 추가윤부절개술 군에서는 30.7 ± 9.7개월이었다. 재발은 자가윤부결막이식술 단독 시행 군에서는 6안(15.4%; 원발성 4안, 재발성 2안)이 있었으며, 추가 윤부절개술 군에서는 2안(2.9%; 원발성 1안, 재발성 1안)을 나타내었고, 두 군 간에 통계적으로 유의한 차이를 보였다(p<0.05). 재발이 나타날 때까지의 평균 기간은 자가윤부결막이식술 단독 시행 군에서 원발성 군날개인 경우 6.3 ± 3.4개월, 재발성 군날개인 경우 4.3 ± 2.5개월이었으며, 추가 윤부절개술 군에서는 원발성 12.1 ± 2.6개월, 재발성 8.4 ± 4.6개월을 나타내었고, 두 군 간 통계적으로 유의한 차이를 보였다(p<0.05). 결론: 추가 윤부절개술은 자가윤부결막이식술을 단독 시행하였을 때보다 원발성 및 재발성 군날개 모두에서 재발 방지에 유용한 수술법이다.
Abstract
Purpose: We report the clinical outcomes of patients undergoing additional widening of the limbal incision to prevent disease recurrence after conjunctivo-limbal autograft combined with pterygial excision. Methods: We retrospectively compared 95 eyes with primary and 12 eyes with recurrent pterygia randomized to treatment via two surgical methods: conjunctivo-limbal autograft alone and combined with widening of the limbal incision to allow for pterygial removal. We widened the limbal incisions by 1 mm on both the superior and inferior limbal margins and removed the pterygia. The outcomes were compared between 39 eyes undergoing conjunctivo-limbal autograft alone and 68 eyes undergoing conjunctivo- limbal autograft with widening of the limbal incision. Results: The mean overall postoperative follow-up period was 29.6 ± 10.5 months and conjunctivo-limbal autograft alone group was 27.4 ± 11.5 months, combined with widening of the limbal incision group was 30.7 ± 9.7 months. Six pterygia (15.4%; four primary and two recurrent) developed in those undergoing conjunctivo-limbal autograft alone and two (2.9%; one primary and one recurrent) in those undergoing additional widening of the limbal incision; the recurrence rate differed significantly between the two groups (p < 0.05). In the group treated with conjunctivo-limbal autograft alone, the mean time to development of a new primary pterygium was 6.3 ± 3.4 months and that to development of a recurrent pterygium 4.3 ± 2.5 months; the respective values for the group undergoing additional widening of the limbal incision were 12.1 ± 2.6 and 8.4 ± 4.6 months; the recurrence rates differed significantly (p < 0.05). Conclusions: Conjunctivo-limbal autograft with additional widening of the limbal incision used to treat both new primary and recurrent pterygia was more effective in terms of reducing pterygial recurrence than conjunctivo-limbal aAutograft alone.
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