International ophthalmology · 2023
Efficacy and safety of different conbercept injection regimens in the treatment of choroidal neovascularization in pathological myopia: a retrospective study.
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Gong Bin, Bo Yuxia, Zhang Peng, Wang Jing, Gao Lei
Аннотация
PURPOSE: To investigate the clinical efficacy of conbercept 1 + pro re nata (PRN) (i.e., reinjection as needed after one injection) and 3 + PRN (reinjection as needed after 3 months of injection) regimens in choroidal neovascularization secondary to pathological myopia (PM-CNV).
METHODS: From 06/2019 to 06/2020, 65 patients (65 eyes) confirmed with PM-CNV were included in this retrospective study. Intravitreal injection of 0.5 mg conbercept was conducted either with the 1 + PRN or 3 + PRN strategy. Patients were followed up for 12 months. The best-corrected visual acuity (BCVA), central retinal thickness (CRT), CNV lesion leakage area, the number of injections, and postoperative adverse reactions were observed.
RESULTS: The mean age of the patients was 42.10 ± 4.69 years, and the average diopter was - 11.26 ± 2.97D. The BCVA at month 3 in the 3 + PRN (n = 30) group was lower than in the 1 + PRN (n = 35) group (P < 0.001). The CRT at month 3 in the 3 + PRN group was lower than in the 1 + PRN group (P < 0.001). After 12 months, there were no differences in the BCVA and CRT between the two groups (P > 0.05). The number of injections was less in 1 + PRN than in 3 + PRN (2.14 ± 1.06 vs. 3.37 ± 0.76, P < 0.001) at 12 months. No serious treatment-related ocular complications or serious systemic adverse events were found.
CONCLUSION: The 1 + PRN and 3 + PRN strategies of intravitreal injection of conbercept are effective in treating PM-CNV. The 1 + PRN regimen required fewer injections, and it might be more suitable for the treatment of PM-CNV.
METHODS: From 06/2019 to 06/2020, 65 patients (65 eyes) confirmed with PM-CNV were included in this retrospective study. Intravitreal injection of 0.5 mg conbercept was conducted either with the 1 + PRN or 3 + PRN strategy. Patients were followed up for 12 months. The best-corrected visual acuity (BCVA), central retinal thickness (CRT), CNV lesion leakage area, the number of injections, and postoperative adverse reactions were observed.
RESULTS: The mean age of the patients was 42.10 ± 4.69 years, and the average diopter was - 11.26 ± 2.97D. The BCVA at month 3 in the 3 + PRN (n = 30) group was lower than in the 1 + PRN (n = 35) group (P < 0.001). The CRT at month 3 in the 3 + PRN group was lower than in the 1 + PRN group (P < 0.001). After 12 months, there were no differences in the BCVA and CRT between the two groups (P > 0.05). The number of injections was less in 1 + PRN than in 3 + PRN (2.14 ± 1.06 vs. 3.37 ± 0.76, P < 0.001) at 12 months. No serious treatment-related ocular complications or serious systemic adverse events were found.
CONCLUSION: The 1 + PRN and 3 + PRN strategies of intravitreal injection of conbercept are effective in treating PM-CNV. The 1 + PRN regimen required fewer injections, and it might be more suitable for the treatment of PM-CNV.