The Effect of Surface Anaesthesia with Lidocaine Combined with Epinephrine Hydrochloride in Pterygium Excision
Objective To evaluate the effect of lidocaine combined with epinephrine hydrochloride as a surface anaesthetic in pterygium excision. Methods 112 patients (112 eyes) who underwent pterygium excision in the Department of Ophthalmology of The Second People's Hospital of Jingdezhen during the period of January 2023 to April 2024 were selected for the study,and the patients were randomly divided into the experimental group and the control group according to the different methods of anaesthesia,with 56 patients (56 eyes) in each group. The experimental group was given lidocaine injection and epinephrine hydrochloride injection for surface anaesthesia,and the control group was given lidocaine injection for local infiltration anaesthesia. The patients in the two groups were compare the surgical outcome,operative time,visual analogue scoring system ( VAS) score,conjunctival congestion,clarity of the operative field,and the occurrence of intraoperative haemostasis. Results The cure rate of the experimental group was 98.21％,and the cure rate of the control group was 92.86％,the difference was not statistically significant (P>0.05). The operation time of the experimental group was shorter than that of the control group,the difference was statistically significant (P<0.05);but the difference between the two groups was not statistically significant when comparing the intraoperative 10 min and postoperative VAS scores (P>0.05). The intraoperative conjunctival congestion score of the experimental group was better than that of the control group,the difference was statistically significant (P<0.01). The operative field clarity of the experimental group was higher than that of the control group,and the percentage of those who needed haemostasis was lower than that of the control group,and the difference between the two groups was statistically significant (P<0.05). Conclusion Lidocaine combined with epinephrine hydrochloride as a surface anaesthetic in pterygium excision can effectively improve anaesthesia effect and clarity of the operative field,reduce conjunctival congestion and intraoperative haemorrhage,and thus shorten the operative time and promote postoperative recovery.
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