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The Effect of a Comprehensive Treatment Regimen for Deep Stromal Fungal Keratitis |
Siteng Wu1 , Zelin Zhao1 , Yu Pan2 , Wei Chen1 |
1 Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China 2 Shaoxing Hospital of Traditional Chinese Medicine, Shaoxing 312000, China |
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Abstract Objective: To evaluate the efficacy and safety of a comprehensive treatment regimen based on intrastromal voriconazole injection in the treatment of deep stromal fungal keratitis in which the lesion has infiltrated more than half of the corneal stroma. Methods: This was a retrospective study. Sixty-two patients (62 eyes) with deep stromal fungal keratitis who underwent intrastromal voriconazole injection were selected at the Eye Hospital, Wenzhou Medical University from March 2013 to July 2017. Age, the diameter of the ulcer, cure rate, recurrence rate, complications, etc., were measured. All the patients were followed up for at least 6 months. Sixty-two patients were divided into an effective group (EGII) and an ineffective group (IGII) based on the effect of the pure intrastromal voriconazole injection. The data were analyzed by an independent samples t-test and Chi-square test. Results: The 62 patients had ulcer diameters ranging from 2.8 to 11.0 (5.5±2.1)mm. The time from onset to treatment for the 62 patients ranged from 2 days to 2 years (44.2±98.6)days. Six patients sought treatment more than half a year after onset, and the remaining 56 patients had an onset time of 21.2±13.6 days. All patients were followed up for 6 to 36 (10.5±7.5)months. Forty-two patients (42 eyes) were cured by pure intrastromal voriconazole injection, 1 patient (1 eye) underwent a corneal transplant to improve vision after intrastromal voriconazole injection was effective; 19 patients (19 eyes) underwent conjunctival flap coverage after the injection failed. Combined with conjunctival flap coverage, 11 eyes were cured, 8 eyes required corneal transplants, and 2 patients relapsed after corneal transplants. The cure rate of the comprehensive treatment regimen was 85.5%, and the recurrence rate was 3.2%. The EGII group had a smaller ulcer diameter than the IGII group, and the difference between the two groups was statistically significant (t=-2.199, P=0.032). There were no complications during or after the operation. Conclusions: Intrastromal voriconazole injection has a safe and beneficial effect on deep stromal fungal keratitis that does not respond to conventional drugs. For eyes with a wide range of lesions, the effect of pure intrastromal voriconazole injection was not good, but the cure rate can be improved when treatment is combined with conjunctival flap coverage.
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Received: 18 December 2019
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Corresponding Authors:
Wei Chen, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China (Email: chenweimd@hotmail.com)
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