Maja Pålsdatter Lønvik1,2, Odd Eirik Elden3,4,5, Mats Joakimsen Lunde5, Trond Nordseth6,7, Karin Elvenes Bakkelund3, Oddvar Uleberg8,9. 1. Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, NO-7491, Trondheim, Norway. 2. Department of Internal Medicine, Nord-Trøndelag Hospital Trust, NO-7601, Levanger, Norway. 3. Department of Emergency Medicine and Pre-Hospital Services, St. Olav's University Hospital, NO-7030, Trondheim, Norway. 4. Department of Pre-Hospital Services, Nord-Trøndelag Hospital Trust, N-7600, Levanger, Norway. 5. Department of Surgery, Levanger Hospital, Nord-Trøndelag Hospital Trust, N-7600, Levanger, Norway. 6. Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, NO-7491, Trondheim, Norway. 7. Department of Anesthesia and Intensive Care Medicine, St.Olav's University Hospital, NO-7030, Trondheim, Norway. 8. Department of Emergency Medicine and Pre-Hospital Services, St. Olav's University Hospital, NO-7030, Trondheim, Norway. oddvar.uleberg@stolav.no. 9. Department of Research and Development, Norwegian Air Ambulance Foundation, NO-0103, Oslo, Norway. oddvar.uleberg@stolav.no.
Abstract
BACKGROUND: Airway management in patients with out of hospital cardiac arrest (OHCA) is important and several methods are used. The establishment of a supraglottic airway device (SAD) is a common technique used during OHCA. Two types of SAD are routinely used in Norway; the Kings LTS-D™ and the I-gel®. The aim of this study was to compare the clinical performance of these two devices in terms of difficulty, number of attempts before successful insertion and overall success rate of insertion. METHODS: All adult patients with OHCA, in whom ambulance personnel used a SAD over a one-year period in the ambulance services of Central Norway, were included. After the event, a questionnaire was completed and the personnel responsible for the airway management were interviewed. Primary outcomes were number of attempts until successful insertion, by either same or different ambulance personnel, and the difficulty of insertion graded by easy, medium or hard. Secondary outcomes were reported complications with inserting the SAD's. RESULTS: Two hundred and fifty patients were included, of whom 191 received I-gel and 59 received LTS-D. Overall success rate was significantly higher in I-gel (86%) compared to LTS-D (75%, p = 0.043). The rates of successful placements were higher when using I-gel compared to LTS-D, and there was a significant increased risk that the insertion of the LTS-D was unsuccessful compared to the I-gel (risk ratio 1.8, p = 0.04). I-gel was assessed to be easy to insert in 80% of the patients, as opposed to LTS-D which was easy to insert in 51% of the patients. CONCLUSIONS: Overall success rate was significantly higher and the difficulty in insertion was significantly lower in the I-gel group compared to the LTS-D in patients with OHCA.
BACKGROUND: Airway management in patients with out of hospital cardiac arrest (OHCA) is important and several methods are used. The establishment of a supraglottic airway device (SAD) is a common technique used during OHCA. Two types of SAD are routinely used in Norway; the Kings LTS-D™ and the I-gel®. The aim of this study was to compare the clinical performance of these two devices in terms of difficulty, number of attempts before successful insertion and overall success rate of insertion. METHODS: All adult patients with OHCA, in whom ambulance personnel used a SAD over a one-year period in the ambulance services of Central Norway, were included. After the event, a questionnaire was completed and the personnel responsible for the airway management were interviewed. Primary outcomes were number of attempts until successful insertion, by either same or different ambulance personnel, and the difficulty of insertion graded by easy, medium or hard. Secondary outcomes were reported complications with inserting the SAD's. RESULTS: Two hundred and fifty patients were included, of whom 191 received I-gel and 59 received LTS-D. Overall success rate was significantly higher in I-gel (86%) compared to LTS-D (75%, p = 0.043). The rates of successful placements were higher when using I-gel compared to LTS-D, and there was a significant increased risk that the insertion of the LTS-D was unsuccessful compared to the I-gel (risk ratio 1.8, p = 0.04). I-gel was assessed to be easy to insert in 80% of the patients, as opposed to LTS-D which was easy to insert in 51% of the patients. CONCLUSIONS: Overall success rate was significantly higher and the difficulty in insertion was significantly lower in the I-gel group compared to the LTS-D in patients with OHCA.
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