섬유주절제술과 아메드밸브삽입술 후 초음파수정체유화술의 수술 결과 비교
Comparison of Surgical Outcomes after Phacoemulsification between Trabeculectomized Eyes and Ahmed Valve-implanted Eyes
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목적: 섬유주절제술과 아메드밸브삽입술을 시행받은 환자들에서 백내장수술 후 임상경과를 비교하고자 하였다. 대상과 방법: 섬유주절제술을 시행한 29명 29안(1군)과 아메드밸브삽입술을 시행한 20명 20안(2군)을 대상으로 백내장수술 전에 세극등현미경검사와 안압검사를 포함한 전반적인 안과검사를 시행하였다. 수술 후 1일, 7일, 1개월, 3개월, 6개월째 검사를 반복하였다. 두 군에서 수술 후 안압 및 안압하강점안제의 개수를 포함한 임상경과를 비교 분석하였다. 결과: 수술 전 평균 안압은 1군과 2군에서 각각 15.34 ± 4.34 mmHg와 16.35 ± 3.44 mmHg였다(p=0.265). 1군에서는 수술 후 1일째 평균 안압이 3.86 ± 9.69 mmHg (p=0.038) 상승하였고, 수술 후 3개월째(0.28 ± 0.70, p=0.046)와 6개월째(0.34 ± 0.94, p=0.047) 안압하강점안제의 개수가 증가하였다. 2군에서 안압과 안압하강점안제의 개수는 수술 전에 비해 수술 후 모든 시기에 변화를 보이지 않았다. 1군의 2명에서 수술 후 1개월 이내에 안압조절을 위해 결막하 5-fluorouracil 주사를 시행하였다. 결론: 섬유주절제술을 시행받은 군에서 백내장수술 직후 유의한 안압상승이 있었고, 일부 환자에서는 안압조절을 위한 추가적인 술기가 요구되었으며 수술 후 3개월째부터 안압하강점안제의 개수가 수술 전보다 증가하였다. 따라서 백내장수술 후 초기에는 섬유주절제술을 시행한 환자에서 아메드밸브삽입술을 시행한 환자에서보다 여과포의 기능이 더 떨어질 가능성을 고려하여 보다 면밀한 관찰이 필요할 것으로 보인다.
Abstract
Purpose: We compared the outcomes of cataract surgery in patients who underwent trabeculectomy and Ahmed glaucoma valve implantation. Methods: Twenty-nine trabeculectomized eyes of 29 patients (group 1) and 20 Ahmed glaucoma valve-implanted eyes of 20 patients (group 2) were enrolled consecutively. All subjects underwent thorough ophthalmic examinations, including slit-lamp microscopy and Goldmann applanation tonometry preoperatively, on postoperative days 1 and 7, and at postoperative months 1, 3, and 6. The surgical outcomes including intraocular pressure (IOP) and the required number of IOP-lowering medications were compared between the two groups. Results: The mean preoperative IOP in groups 1 and 2 was 15.34 ± 4.34 and 16.35 ± 3.44 mmHg, respectively (p = 0.265). In group 1, the IOP on postoperative day 1 increased significantly (by 3.86 ± 9.69 mmHg, p = 0.038), and the number of IOP-lowering medications rose at both 3 months (0.28 ± 0.70, p = 0.046) and 6 months (0.34 ± 0.94, p = 0.047) postoperatively. Group 2 exhibited no change in the IOP postoperatively or the number of IOP-lowering medications required in the postoperative period. Subconjunctival 5-fluorouracil injections for IOP control were required by two group 1 patients within 1 month postoperatively. Conclusions: In patients with a trabeculectomized eye, the IOP increased immediately after cataract surgery; additional IOP-lowering procedures were required by some patients. The number of IOP-lowering medications increased after 3 months postoperatively. As cataract surgery may compromise filtering bleb function to a greater extent in trabeculectomized than in Ahmed glaucoma valve-implanted eyes, the former eyes require closer observation during the early postoperative period.
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