Efficacy of lidocaine 2% gel in pterygium surgery.
OBJECTIVE
Anaesthesia during pterygium surgery is usually achieved with local injection of anaesthetic medications. The aim of this study was to determine whether lidocaine 2% gel is an effective topical anaesthetic agent for pterygium surgery.


METHODS
We conducted a prospective, randomized clinical trial. Fifty-four consecutive patients who had primary pterygium underwent surgical excision of the lesion and conjunctival autograft. Patients were randomized into two groups. Group 1 received 1 ml of lidocaine 2% solution subconjunctivally and group 2 received lidocaine 2% gel topically. The primary outcome of interest was the pain experienced during anaesthetic administration and surgery. Following the dissection and excision of the pterygium, conjunctival autograft was transplanted in each of the patients. Immediately after the operation, pain and discomfort scores were determined using a 10-point linear visual analogue scale.


RESULTS
The mean pain score during anaesthetic administration was 4.26 +/- 1.18 in the injection group and 0.92 +/- 0.56 in the gel group. The mean pain score during surgery was 3.96 +/- 0.95 in the injection group and 4.0 +/- 1.01 in the gel group. There was a statistically significant difference in mean pain scores experienced during anaesthetic administration (p = 0.01). There was no significant difference in mean pain scores experienced during surgery (p = 0.55). No adverse events were noted.


CONCLUSIONS
In light of these results, we conclude that topical administration of lidocaine 2% gel can be used as an alternative method of anaesthesia in pterygium surgery, especially for patients with needle phobia.
Oksuz
H
H
Department of Ophthalmology, Faculty of Medicine, Mustafa Kemal University, Hatay, Turkey. huseyinoksuz1@yahoo.com
Tamer
C
C
D000328:Adult; D000772:Anesthesia, Local / Q000379:methods; D000779:Anesthetics, Local / Q000008:administration & dosage*; D003228:Conjunctiva / Q000601:surgery; D005260:Female; D005782:Gels / Q000008:administration & dosage; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage*; D008297:Male; D010147:Pain Measurement; D011446:Prospective Studies; D011625:Pterygium / Q000601:surgery*; D014182:Transplantation, Autologous; D016896:Treatment Outcome
D000779:Anesthetics, Local; D005782:Gels; D008012:Lidocaine