Keijzer Ch, Buitelaar DR, Efthymiou KM, Sramek M, Ten Cate J, Ronday M, Stoppa T, Huitink JM, Schutte PF. Anesth Analg. 2009; 109(4): 1092-1095
This study from the department of Anesthesiology and Intensive Care at the Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and the VU University Medical Center in Amsterdam compared the rate of postoperative sore throat and neck complaints with i-gel® to a well known brand of laryngeal mask. Patients were interviewed postoperatively at 1hr, 24hrs and 48 hrs. The authors found significantly lower levels of sore throat with i-gel®, as well as lower levels of dysphagia.
Link to abstract.