Assessment Of Laryngeal Mask Airway Insertion Conditions With Co-administration Of Thiopentone Fentanyl And Halothane

Background: The laryngeal mask airway (LMA) provides a useful alternative for airwayrnmanagement during spontaneous or controlled ventilation. Because of benefits like, lessrnhemodynamic changes, minimal increase in intraocular pressure after insertion; and arnlower incidence of sore throat in adults, the use of LMA as an alternative to trachealrnintubation is gaining popularity. So choosing an induction agent that better suppresses thernairway reflexes, at usual induction dose, while, inserting LMA remains important.rnObjectives: To assess conditons of LMA insertion by the co-administration ofrnThiopentone, Fentanyl and Halothane in elective patients, scheduled for surgery at TikurrnAnbessa Referral Hospital from March16- May 30, 2015.rnMethodology: -The study was conducted in TikurAnbessa Referral Hospital March16 - Mayrn30, 2015.The study population was all elective patients, who was scheduled for electivernsurgery and for whom intubation with laryngeal mask airway was indicated. Institutionrnbased cross-sectional study was conducted. The total sample size is 42. Data wasrncollected by observing the patients intubated with LMA under Thiopentone, Fentanyl andrnHalothane. Data was analyzed by using SPSS version 16. Association factors werernchecked by using cross-tabulation and chi-square.rnResults: - Total number of patients involved in this research was 42. Only patients withrnASA classification of class I & II and Mallampati class I &II are involved. The mean agernof the patients involved in the research was 18.13 ± 12.26. The mean weight was 41.92 ±rn17.78. Concerning the responses of the patients to LMA insertion, 95.2% of the patientsrnhave adequate jaw relaxation. 41(97.6%) did not develop laryngeal spasm. In 92.7% ofrncases LMA was inserted during the first trial. Gagging did not occur in 90.5% of therncases. Coughing did not occur in 95.2% of the cases. . No movement is recorded in mostrnof the cases (95.2%). There was no statistically significant change in the MAP and HR ofrnthe patients immediately, 5 minute and 10 minute after LMA insertion. Most of thernpatients (45.2%) start spontaneous breathing within the first 10sec after the combinationrnof the drugs was administered.rnConclusion: - Thiopentone 5.12mg/kg, fentanyl 1.2mcg/kg and halothane 3% maskrnventilated with 100% oxygen for 2.7 min is effective for the insertion of LMA in electivernpatients.

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