There was no significant difference in rates of complications between direct laryngoscopy and Glidescope video laryngoscopy : esophageal intubations ( 7 % vs 0 % ; p = 0.05 ) , aspiration events ( 7 % vs 9 % ; p = 0.69 ) , desaturation ( 8 % vs 4 % ; p = 0.27 ) , and hypotension ( 13 % vs 11 % ; p = 0.64 ) .