REPLACEMENT OF LIDOCAINE GEL WITH TOPICAL PROPARACAINE ANESTHESIA FOR ROUTINE INTRAVITREAL INJECTIONS

AUTHORS: Varsha Alex, Sumit R Singh et al.
Retina. 2020 Oct 28
PURPOSE Lidocaine gel was suggested to be highly effective in providing anesthesia for intravitreal injections but adverse effects include possibility of making sterilization of the conjunctiva difficult. Hence, we wished to determine the effect of using 0.5% proparacaine drops alone over the use of 3.5% lidocaine hydrochloride gel anesthesia during office based intravitreal injections.

METHODOLOGY This was a case control study in patients who came routinely to the clinic for anti-vascular endothelial growth factor injections. Eyes were treated with one of two anesthesia modalities. Total of 216 injections in 120 patients were reviewed. One group (N = 107) underwent anesthesia with 0.5% proparacaine drops and the control group (N = 109) received 3.5% lidocaine gel. The pain perceived after injection was graded using the Numerical Rating Scale (NRS) and score immediately recorded by the ‘masked’ injecting physician.

RESULTS The mean pain score (± SD) for the proparacaine-only group vs gel group was 1.97 (± 1.17) vs 1.76 (± 0.92), P value = 0.3174. There was no statistical difference between the two groups.

CONCLUSION 3.5% lidocaine gel is not superior to 0.5% proparacaine drops as patients attained good pain control and excellent rates of overall satisfaction with proparacaine drops alone.

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