Publications of Faculty of Medicine:A COMPARISON BETWEEN CUFFED OROPHARYNGEAL AIRWAY, LARYNGEAL MASK AIRWAY AND LARYNGEAL TUBE AS SUPRAGLOTTIC AIRWAY DEVICES IN SPONTANEOUSLY BREATHING ANESTHETIZED PATIENTS: Abstract

Cuffed oropharyngeal airway (COPA). Laryngeal mask airway (LMA) and laryngeal tube (LT) are supraglott:,; airway devices, often used in anesthesia when endtracheal intubations are not necessarily required. We conducted this study in order to evaluate the efficacy of these devices in our set of patients, with regards to quality of insertion, insertion time, and efficacy of airway, airway manipulations and incidence of adverse events. One hundred fifty patients, undergoing general anesthesia for routine procedures were randomly assigned to either have COPA, LMA or LT. Anesthetic management was standardized for all patients. After lose of the lid reflex, absence of body movements and jaw was relaxed. Insertion of airway device was done. After placement, insertion time and number of attempts were noted. Airway manipulations were used as necessary and recorded. Subjective assessment of insertion of the airway was evaluated. Also efficacy of air way device and time of insertion. Adverse events were classified into major and minor intraoperative, immediate and next-day postoperative Regarding quality of insertion, there was significant difference in excellent condition degree when comparing COPA group to other groups, as COPA group was less, also, there was significant difference between LMA group and LT group where LT group was high. In fair, poor and failure there was significant difference in CORAL group when compared to other groups, where COPA group was high, but there was no significant difference between LMA group and LT group. Insertion time was significantly less in LT group compared to other two groups, but there was no significant difference between COPA and LMA groups. Efficacy of airway was significantly high in LT group. Also, efficacy of airway was significantly high in LMA grouptompared to COPA group. Once the device was in place, more airway manipulations were required to maintain an unobstructed airway in COPA, LMA and LT respectively. Incidence of adverse events, including, major intraoperative complications were highest in COPA and lowest in LT group. The same result was happened in minor intraoperative complications. The three devices were effective in establishing an airway for spontaneously breathing adult under general anesthesia. The LT was associated with better airway quality and fewer manipulations during its use, suggesting that it is easier to use. The LMA was better than COPA in controlling airway. But COPA was associated with less blood on device and sore throat, suggesting that it may cause less pharyngeal trauma.