ORIGINAL ARTICLE |
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Year : 2019 | Volume
: 67
| Issue : 1 | Page : 95-100 |
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Surgical outcomes of repeat trabeculectomy augmented with high dose mitomycin C
Sharmila Rajendrababu1, Sujani Shroff1, Sangeeta Vivek Patil1, Mohammed Sithiq Uduman2, Ashok Vardhan3, SR Krishnadas1
1 Department of Glaucoma, Aravind Eye Hospital, Madurai, Tamil Nadu, India 2 Department of Biostatistics, Aravind Eye Hospital, Madurai, Tamil Nadu, India 3 Department of General Ophthalmology and Biostatistics, Aravind Eye Hospital, Madurai, Tamil Nadu, India
Correspondence Address:
Dr. S R Krishnadas Department of Glaucoma, Aravind Eye Hospital, 1, Anna Nagar, Madurai - 625 020, Tamil Nadu India
Source of Support: None, Conflict of Interest: None | Check |
DOI: 10.4103/ijo.IJO_682_18
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Purpose: To evaluate the surgical outcomes of repeat trabeculectomy augmented with risk factor adjusted mitomycin C (MMC) exposure in eyes with previous failed trabeculectomy. Methods: Case records of 38 eyes of 37 patients with previous failed filter who underwent repeat trabeculectomy with MMC were reviewed retrospectively. Main outcome measures were best-corrected visual acuity (BCVA), intraocular pressure (IOP) reduction, requirement of anti-glaucoma medications, postoperative complications, and surgical success (defined as IOP of ≤21 mmHg and >5 mmHg along with 20% reduction from preoperative IOP with or without adjuvant medications) at 1-year postoperatively. Statistical analysis was done using the STATA 14.1 (Texas, USA). Results: Patient's mean age was 46.41 (±20.43) years and the mean preoperative IOP was 32.73 (±9.26) mmHg which reduced to 16.22 (±7.08) mmHg postoperatively at 12 months (P < 0.001). Mean number of anti-glaucoma medications reduced from 2.76 (±0.83) preoperatively to 1.89 (±0.95) postoperatively (P < 0.001). Surgical success was observed in 81.1% at 1 year (n = 30). Eyes that received MMC >3 min had a postoperative mean IOP of 12.50 (±3.23) mmHg compared to 23.08 (±7.19) mmHg with MMC <3 min (P < 0.001). Seven eyes (18.4%) developed postoperative complications, and all were seen in eyes that received MMC >3 min (P = 0.033). Conclusion: Repeat trabeculectomy with MMC, used in higher concentration and exposure time altered according to individual risk factor plays a crucial role in the success and hence it could be considered as a viable option before planning a tube surgery.
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