Outcomes and risk factors for failure of trabeculectomy in glaucomatous patients in Southwest China: a 325 eyes analysis
Author:
Contact Author:

Nan Wu and Yong Liu. Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China. nanwu1122@163.com; liuyy99@163.com

Affiliation:

Clc Number:

Fund Project:

Supported by the National Natural Science Foundation of China (No.81770972).

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    AIM: To evaluate the outcomes and elucidate the failure factors for trabeculectomy with mitomycin C (MMC) in Southwest Chinese patients. METHODS: A retrospective correlational study was conducted on the glaucomatous patients who underwent initial trabeculectomy with MMC in Southwest Hospital and had been followed up for 1-3y. A complete success for surgery is defined as a postoperative intraocular pressure (IOP) >5 and ≤21 mm Hg and 20% reduction of IOP compared to preoperative, without IOP-lowering medications. A qualified success for surgery is defined as the abovementioned postoperative IOP with or without IOP-lowering medications. The primary outcomes were IOP, the number of IOP-lowering medications, and cumulative success rate. The secondary outcomes included best corrected visual acuity (BCVA), mean deviation (MD) of visual field, major complications, and risk factors for surgical failure. RESULTS: A total of 325 eyes of 261 glaucomatous patients had been included in our study. Both the mean IOP and the number of IOP-lowering medications were significantly decreased from 32.9±12.0 to 16.4±5.7 mm Hg (P<0.0001) and 3.0±0.9 to 0.9±1.0 (P<0.0001), respectively, at the last visit. The cumulative complete success rate and qualified success rate were 77.8% and 92.0% at 1-year follow-up, and 47.2% and 77.7% at 3-year follow up. There were no significant differences in surgical outcomes between primary angle-closure glaucoma (PACG) and primary open angle glaucoma (POAG). In PACG patients, the success rates of trabeculectomy were comparable with those of phacotrabeculectomy. Hypertension (HR=1.904, P=0.011), encapsulated bleb (HR=2.756, P<0.001), and more preoperative topical medications (HR=2.475, P=0.008) were risk factors for surgical failure. CONCLUSION: The qualified success rate of trabeculectomy with MMC in glaucomatous patients in the cohort is 92.0% at 1-year, and 77.7% at 3-year follow up. Hypertension, encapsulated bleb, and more preoperative topical medications are associated with surgical failure.

    Reference
    Related
    Cited by
Get Citation

Zuo-Xin Qin, Xi Ying, Qing Han, et al. Outcomes and risk factors for failure of trabeculectomy in glaucomatous patients in Southwest China: a 325 eyes analysis. Int J Ophthalmol, 2023,16(3):367-374

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:June 11,2022
  • Revised:January 04,2023
  • Adopted:
  • Online: March 02,2023
  • Published: