Postoperative sore throat with 0.05% betamethasone gel and 2% lignocaine jelly used as a lubricant for ProSeal LMA (PLMA) insertion

摘要

Postoperative sore throat (POST) is a minor complication after general anaesthesia. Many agents have been used as lubricant to reduce the incidence of POST with variable efficacy. We conducted a study to compare the incidence of POST with 0.05% betamethasone gel and 2% lignocaine jelly as a lubricant for PLMA insertion in patients undergoing general anaesthesia. Sixty subjects were divided randomly into two groups. Patients in Group I ( n = 30) had 2.5 ml of 0.05% of betamethasone gel while the Group II had 2.5 ml of 2% lignocaine jelly applied on the cuff of PLMA. After standard induction and insertion of PLMA cuff inflated to 60 cm of H 2 O and was maintained at the same throughout the surgery. In PACU, patients were inquired about sore throat at immediate and 24 h post operative period. POST was not observed in any of the patients of Group I. In group II 33% of the patients had 1st degree and 10% had 2nd degree of sore-throat in immediate post-operative period. After 24 h 16% patients had 1st degree sore-throat and 3% patients had 2nd degree of sore-throat in Group II patients. We conclude that lubricating cuff of PLMA with 0.05% of betamethasone gel is effective in reducing the incidence of POST.