مقايسه گلودرد بعد از عمل بين سه روش لوله گذاري داخل تراشه ، راه هوايي ماسك حنجره اي و ماسك صورت

Comparison of the prevalence of postoperative sore throat among three methods of airway management: endotracheal intubation, laryngeal mask airway and face mask

Background and Aim: postoperative sore throat as a side effect of general anaesthesia, depends on many factors such as kind and diameter of tracheal tube, using Succinylcholine and nitrous oxide ... etc. We studied the correlation of sore throat with three methods of airway management: endotracheal intubation (ETT), placement of laryngeal mask airway (LMA) and using face mask (FM). Materials and Methods: in a prospective double blind clinical trial, 180 female patients between 25-50 years of age and of physical status ASA I, who had been scheduled for elective minor orthopedic surgery, were randomized into three groups, with the same number of patients in every group. After premedication and induction of anaesthesia, ETT, LMA and FM were used for groups I, II and III respectively. The patients were asked about presence of sore throat on the following day of the surgery. Results: Data were analyzed with chi-square test using SPSS software. The incidence of sore throat was 28.1% in group [(ETT), 10.9% in group II(LMA) and 5.3% in group III(FM).The relative risk of occurrence sore throat in group I, was 5.33 times as much as group III and 2.57 times as much as group II, which was statistically significant (p<0.05). On the other hand although the relative risk of sore throat in group II was 2.07 times as much as group III, but this finding was not statistically significant (p=0.27). Conclusion: This study showed that, the incidence of sore throat in LMA group, was significantly lower than that of ETT group. Although the incidence of sore throat in LMA is more than FM group, but this was not statistically significant.